Microchip Technology PICkit™ Serial Analyzer User’s Guide

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PICkit

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Serial Analyzer

USER’S GUIDE

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code hopping devices, Serial

PICkit™ SERIAL ANALYZER

USER’S GUIDE

Table of Contents

Preface ... ............... .............. .............. ............ ............... .............. ............... .. 1

Chapter 1. PICkit™ Serial Analyzer Overview

1.1 Introduction ..................................................................................... 5

1.2 Highlights ........................................................................................ 5

1.3 PICkit™ Serial Analyzer Contents ..................................................5

1.4 PICkit™ Serial Analyzer Development System .............................. 5

1.5 PICkit™ Serial Analyzer Hardware .................................................6

1.6 PICkit™ Serial Analyzer Software ..................................................8

Chapter 2. Getting Started

2.1 Introduction ..................................................................................... 9

2.2 Highlights ........................................................................................ 9

2.3 Installing the PICkit™ Serial Analyzer Software .............................9

2.4 Connecting the PICkit™ Serial Analyzer to the PC ........................9

2.5 Connecting the PICkit™ Serial Analyzer to the 28-Pin

Demo Board ..................................................................................10

2.6 Starting the PICkit™ Serial Analyzer Program ............................. 10

2.7 Running the 28-Pin Demo I2C™ Demonstration Program ...........11

2.8 I

2.9 28-Pin Demo I

C™ Communications – Basic Operations ..................................14

C™ Source Code and Firmware ..........................15

Chapter 3. PICkit™ Serial Analyzer PC Program

3.1 Introduction ................................................................................... 17

3.2 Highlights ...................................................................................... 17

3.3 Installing the PICkit™ Serial Analyzer Software ...........................17

3.4 Starting the Program .....................................................................17

3.5 Configuration Wizard ....................................................................18

3.6 Main Window ................................................................................21

3.7 Serial Communications Modes .....................................................25

PICkit™ Serial Analyzer User’s Guide

Chapter 4. I2C™ Master Communications

4.1 Introduction ...................................................................................27

4.2 Highlights ......................................................................................27

4.3 PICkit Serial Pin Assignments .......................................................27

4.4 Selecting Communications Mode ..................................................27

4.5 Configuring I2C Communications Mode ........................................28

4.6 Communications: Basic Operations ..............................................30

4.7 Script Builder .................................................................................31

4.8 Script Execute ...............................................................................35

Chapter 5. SPI Master Communications

5.1 Introduction ...................................................................................37

5.2 Highlights ......................................................................................37

5.3 PICkit™ Serial Analyzer Pin Assignments ....................................37

5.4 Selecting Communications Mode ..................................................37

5.5 Configurating SPI Communications Mode ....................................38

5.6 Communications: Basic Operations ..............................................40

5.7 Script Builder .................................................................................42

5.8 Script Execute ...............................................................................46

Chapter 6. USART Asynchronous Communications

6.1 Introduction ...................................................................................49

6.2 Highlights ......................................................................................49

6.3 PICkit Serial Pin Assignments .......................................................49

6.4 Selecting Communications Mode ..................................................50

6.5 Configuring USART Asynchronous Communications Mode .........50

6.6 Communications: Basic Operations ..............................................52

6.7 Script Builder .................................................................................52

6.8 Script Execute ...............................................................................57

Chapter 7. USART Master Synchronous Communications

7.1 Introduction ...................................................................................59

7.2 Highlights ......................................................................................59

PICkit™ SERIAL ANALYZER

Table of Contents

7.3 PICkit Serial Pin Assignments ......................................................59

7.4 Selecting Communications Mode ................................................. 59

7.5 Configuring USART Synchronous Master Communications

Mode .............................................................................................60

7.6 Communications: Basic Operations ..............................................62

7.7 Script Builder ................................................................................62

7.8 Script Execute ...............................................................................67

Chapter 8. User Defined Templates

8.1 Introduction ................................................................................... 69

8.2 Highlights ...................................................................................... 69

USER’S GUIDE

8.3 Create Templates .........................................................................69

8.4 My Templates ...............................................................................71

Chapter 9. PICkit™ Serial Analyzer Firmware

9.1 Introduction ................................................................................... 73

9.2 Highlights ...................................................................................... 73

9.3 Overview ....................................................................................... 73

9.4 EXEC ............................................................................................ 75

9.5 COMM ..........................................................................................78

9.6 I2CM Communications ..................................................................82

9.7 SPI Communications ....................................................................87

9.8 USART Communications .................................. ..... ..... .... ..... ......... 90

Chapter 10. PICkit™ Serial Analyzer DLL

10.1 Introduction ................................................................................... 95

10.2 Highlights ...................................................................................... 95

10.3 Summary of Functions ..................................................................95

10.4 Programming Example ....................... ..... ..... ................................99

PICkit™ Serial Analyzer User’s Guide

Chapter 11. Troubleshooting

11.1 Introduction .................................................................................101

11.2 Frequently Asked Questions .......................................................101

Appendix A. PICkit Serial Analyzer Schematics ...............................103

A.1 Introduction .................................................................................103

Appendix B. 28-Pin Demo Board I2C™ Demonstration Firmwa r e...107

B.1 Introduction .................................................................................107

B.2 Highlights ....................................................................................107

B.3 Hardware .....................................................................................107

B.4 Firmware .....................................................................................107

B.5 I2C Communications ...................................................................108

B.6 Slave Devices .............................................................................109

B.7 Functions .....................................................................................112

Worldwide Sal e s a nd Se r vi c e .............................................. .................114

PICkit™ SERIAL ANALYZER

USER’S GUIDE

Preface

NOTICE TO CUSTOMERS

All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available.

Documents are identified with a “DS” number. This number is located on the bottom of each page, in front of the page number. The numbering convention for the DS number is “DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the document.

For the most up-to-date information on development tools, see the MPLAB Select the Help menu, and then Topics to open a list of available on-line help files.

IDE on-line help.

INTRODUCTION

This chapter contains general information that will be useful to know before using the PICkit™ Serial Analyzer User’s Guide. Items discussed in this chapter include:

• Document Layout

• Conventions Used in this Guide

• Warranty Registration

• Recommended Reading

• The Microchip Web Site

• Development Systems Customer Change Notification Service

• Customer Support

• Document Revision History

DOCUMENT LAYOUT

This document describes how to use the PICkit™ Serial Analyzer as a development tool to communicate with embedded development systems via serial protocols. The manual layout is as follows:

• Chapter 1: PICkit™ Serial Analyzer Overview

• Chapter 2: Getting Started

• Chapter 3: PICkit™ Serial Analyzer PC Program

• Chapter 4: I

• Chapter 5: SPI Master Communications

• Chapter 6: USART Asynchronous Communications

• Chapter 7: USART Master Synchronous Communications

• Chapter 8: User Defined Templates

• Chapter 9: PICkit™ Serial Analyzer Firmware

• Chapter 10: PICkit™ Serial Analyzer DLL

C™ Master Communications

PICkit™ Serial Analyzer User’s Guide

• Chapter 11: Troubleshooting

• Appendix A: Hardware Schematics

• Appendix B: 28-Pin Demo Board I

CONVENTIONS USED IN THIS GUIDE

This manual uses the following docum entat io n conven tion s:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB

Initial caps A window the Output window

Quotes A field name in a window or

Underlined, italic text with right angle bracket

Bold characters A dialog button Click OK

N‘Rnnnn A number in verilog format,

Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>

Courier New font:

Plain Courier New Sam ple source code #define START

Italic Courier New A variable argument file.o, where file can be

Square brackets [ ] Optional arguments mcc18 [options] file

Curly brackets and pipe character: { | }

Ellipses... Replaces r epeated text var_name [,

Emphasized text ...is the only comp ile r...

A dialog the Settings dialog A menu selection select Enable Programmer

dialog A menu path File>Save

A tab Click the Power tab

where N is the tota l number of digits, R is th e radi x and n is a digit.

Filenames autoexec.bat File paths c:\mcc18\h Keywords _asm, _endasm, static Command-line options -Opa+, -Opa- Bit values 0, 1 Constants 0xFF, ‘A’

Choice of mutually exclusive arguments; an OR selection

Represents code supplied by user

C™ Demo Firmware

IDE User’s Guide

“Save project before build”

4‘b0010, 2‘hF1

any valid filename

[options] errorlevel {0|1}

var_name...] void main (void)

{ ... }

WARRANTY REGISTRATION

Please complete the enclosed Warranty Registration Card and mail it promptly. Sending in the Warranty Registration Card entitles users to receive new product updates. Interim software releases are available at the Microchip web site.

Chapter 1. PICkit™ Serial Analyzer Overview

1.1 INTRODUCTION

The PICkit™ Serial Analyzer development system enables a personal computer (PC) to communicate with embedded development systems via serial protocols such as

C™, SPI, asynchronous and synchronous USART. The PC program uses a graphical interface to enter data and commands to communicate to the target device. Data and commands can be entered using basic or scripting commands. The PICkit™ Serial Analyzer connects to the embedded development system using a 6-pin header.

The PICkit™ Serial Analyzer is a sophisticated and highly configurable device. Please take a few moments to familiarize yourself with the hardware interface and PC program by reading this user’s guide. Chapter 2. “Getting Started” will guide you through installing the PC program and running a simple demonstration program on the 28-Pin Demo Board (DM164120-3) using the I

1.2 HIGHLIGHTS

This chapter discusses:

• PICkit™ Serial Analyzer Contents

• PICkit™ Serial Analyzer Development System

• PICkit™ Serial Analyzer Hardware

• PICkit™ Serial Analyzer PC Software

PICkit™ SERIAL ANALYZER

USER’S GUIDE

C serial protocol.

1.3 PICkit™ SERIAL ANALYZER CONTENTS

The PICkit™ Serial Analyzer serial communications development system contains the following items:

1. The PICkit™ Serial Analyzer

2. USB cable

3. PICkit™ Serial Analyzer CD-ROM

1.4 PICkit™ SERIAL ANALYZER DEVELOPMENT SYSTEM

The PICkit™ Serial Analyzer consists of several components that together make an embedded serial communications development system. The PC program runs on Microsoft Analyzer connects to the PC using a USB cable. Finally, the PICkit™ Serial Analyzer interface s t o t h e t a r g et de vi ce us in g a 6- pin header. Figu r e1-1 illustrates t he PIC ki t ™ Serial Analyzer embedded serial communications development system.

Windows® compatible computers with a USB port. The PICkit™ Serial

PICkit™ Serial Analyzer User’s Guide

FIGURE 1-1: PICkit™ SERIAL ANALYZER DEVELOPMENT SYSTEM

Target

Device

USB

PICkit™ Serial Analyzer

1.5 PICkit™ SERIAL ANALYZER HARDWARE

The PICkit™ Serial Analyzer connects to a Microsoft® Windows® compatible computer using a USB port. It interfaces to the target device using a 6-pin header. Figure 1-2 shows an overview of the PICkit™ Serial Analyzer.

FIGURE 1-2: PICkit™ SERIAL ANALYZER

I2C™

SPI

USART

Legend:

1 – Status LEDs 3 – Lanyard Connection 5 – Pin 1 Marker 2 – Push Button 4 – USB Port Connection 6 – Communications Connector

PICkit™ Serial Analyzer Overview

1.5.1 Status LEDs

The Status LEDs indicate the status of the PICkit™ Serial Analyzer.

1. Power (green) – Power is applied to the PICkit™ Serial Analyzer by the USB

port.

2. Target (yellow) – The PICkit™ Serial Analyzer is communicating with the target

device.

3. Busy (red) – The PICkit™ Serial Analyzer is communicating with the target

device.

1.5.2 Push Button

The push button is available for future implementation.

1.5.3 Lanyard Connection

To help prevent possible loss of the PICkit™ Serial Analyzer, a convenient lanyard connection is available.

1.5.4 USB Port Connection

The USB Port Connection is a USB mini-B connector. Connect the PICkit™ Serial Analyzer to the PC using the supplied cable.

1.5.5 Pin 1 Marker

The Pin 1 marker assists in aligning the PICkit™ Serial Analyzer with the target device. Pin assignments are shown in Figure 1-3.

1.5.6 Communication Connector

The communication connector connects to the target device using an inexpensive 6-pin, 0.100" pitch spacing, 0.025” square pin header. Pin assignments are shown in Figure 1-3.

FIGURE 1-3: PICkit™ SERIAL ANALYZER PIN ASSIGNMENTS

Pin 1 Indicator

Pin Description

C™ SPI USART

1 2 3 4 5 6

1— CS 2+V +V +V 3 GND GND GND 4SDASDI — 5SCLSCK— 6— SDORX

Note: The 6-pin header (0.100" spacing) accepts 0.025" square pins.

PICkit™ Serial Analyzer User’s Guide

1.6 PICkit™ SERIAL ANALYZER SOFTWARE

1.6.1 PC Program

The PICkit™ Serial Analyzer PC program uses a graphical interface to enter data and commands to comm unica te to th e target dev ice . Data and c omma nds can be entered using basic or scr ipting commands. Chapter 3. “PICkit™ Serial Analyzer PC Program” explains the installation and operation of the program. Following Chapter 3 there are individual chapters that explain the specific serial communications modes and their operation.

1.6.2 Dynamically Linked Library (DLL)

The PICkit™ Serial Analyzer DLL is explained in Chapter 10. “PICkit™ Serial Analyzer DLL”.

1.6.3 Firmware

The PICkit™ Serial Analyzer firmware is explained in Chapter 9. “PICkit™ Serial Analyzer Firmware”.

The latest version of the PICkit™ Serial Analyzer firmware can be downloaded from the Microchip Technology web site. The firmware is updated by selecting PICkit Serial Analyzer > Download PICkit Serial Analyzer Firmware from the menu bar. An open file window will open. Select the *.hex file to be uploaded to the PICkit™ Serial Analyzer and click on the Open button. The Firmware Download window will open as shown in Figure 1-4 to indicate the status of the firmware update.

FIGURE 1-4: FIRMWARE DOWNLOAD WINDOW

2.1 INTRODUCTION

This chapter will get you started using the PICkit™ Serial Analyzer with the 28-Pin Demo Board. In this demo, the PICkit™ Serial Analyzer will communicate with the 28-Pin Demo Board using the I

the I

C Master and the 28-Pin Demo Board will be the I2C Slave device. The 28-Pin

Demo board is programmed to emulate an I For more information about the 28-Pin Demo Board hardware, see the 28-Pin Demo

Board User’s Guide (DS41 3 01). For more information about the 28-Pin Demo Board I

Appendix B. “28-Pin Demo Board I

The demo program source code and *.hex file can be found on the PICkit™ Serial CD-ROM at D:\28-pin Demo Board\Firmware\

2.2 HIGHLIGHTS

This chapter discusses:

• Installing the PICkit™ Serial Analyzer Software

• Connecting the PICkit Serial Analyzer to the PC

• Connecting the PICkit Serial Analyzer to the 28-Pin Demo Board

• Starting the PICkit Serial Analyzer Program

• Running The 28-Pin Demo I

•I

C Communications – Basic Operations

• 28-Pin Demo I

PICkit™ SERIAL ANALYZER

Chapter 2. Getting Started

C serial protocol. The PICkit™ Serial Analyzer will be

C real-time clock and Serial EEPROM.

C™ Demonstration Firmware”.

C™ Demonstration Program

C™ Source Code and Firmware

C™ demo firmware, see

USER’S GUIDE

2.3 INSTALLING THE PICkit™ SERIAL ANALYZER SOFTWARE

Insert the PICKit™ Serial Analyzer CD-ROM into the CD-ROM drive. In a few moments the introductory screen should be displayed. Follow the directions on the screen to install the PICkit Serial Analyzer software.

If the introductory screen does not appear, browse to the CD-ROM directory and select the AutorunPro.exe program.

Note: The PICkit™ Serial Analyzer program requires the Microsoft

Framework Version 2.0. If the .NET Framework is not installed on your computer (or if in doubt), select the application plus Microsoft Framework installation.

.NET

2.4 CONNECTING THE PICkit™ SERIAL ANALYZER TO THE PC

Connect the PICkit Serial Analyzer to the PC using the supplied USB cable. There are no USB drivers to install. The green Power indicator should light indicating that the PICkit Serial Analyzer is powered.

PICkit™ Serial Analyzer User’s Guide

2.5 CONNECTING THE PICkit™ SERIAL ANALYZER TO THE 28-PIN DEMO BOARD

Connect the PICkit Serial Analyzer to P3 on the 28-Pin Demo Board as shown in Figure 2-1. The PICkit Serial Analyzer will supply power to the 28-Pin Demo Board and perform a power on routine:

• LEDs will flash in sequence DS1, DS2, DS3, DS4, DS3, DS2, and DS1 twice

• All LEDs will turn off

• All LEDs will turn on

• All LEDs will turn off

• LEDs will display in hexadecimal: A, D, C

• LEDs will display the top 4 bits of the ADC value read from potentiometer RP1

FIGURE 2-1: CONNECTING PICkit™ SERIAL TO THE 28-PIN DEMO

BOARD

2.6 STARTING THE PICkit™ SERIAL ANALYZER PROGRAM

You can start the program by:

• Clicking on the desktop icon, or

• Navigating to Start>All Pr ograms>Microchip>PICkit Serial Analyzer After a few moments, the program will start and display the main window as shown in

Figure 2-2. If this is the first time you are running the program, the Configuration Wizard will auto-

matically run. Click on the Next button and accept the default settings for I mode. For more information about using the I Master Communications.”

C Master mode, see Chapter 4. “I2C™

C Master

Getting Started

FIGURE 2-2: PICkit™ SERIAL ANALYZER MAIN WINDOW

2.7 RUNNING THE 28-PIN DEMO I2C™ DEMONSTRATION PROGRAM

Select the 28-Pin Demo I2C demonstration by clicking on Demo Boards > 28 Pin Demo I2C from the menu bar. The 28-Pin Demo I2C demonstration window will be displayed

as shown in Figure 2-3. The Real-Time Clock (RTC) will be displayed first. Note the tabs to select between the

RTC, EEPROM and ADC demonstrations. The demonstration program will constantly poll the 28-Pin Demo Board and display the contents of the real-time clock and the ADC.

2.7.1 Real-Time Clock (RTC)

Clicking on the Real-Time Clock tab will display calendar and clock contents of the real-time clock function running on the 28-Pin Demo Board. The 28-Pin Demo Board has been programmed to emulate a stand-alone serial I

C commands are very similar to the commands used in these devices. The demonstration program will constantly poll the 28-Pin Demo Board and display the contents of the real-time clock.

The Real-Time Clock window displays calendar and clock controls. Notice the date and time when the 28-Pin Demo Board has first been powered on. The date and time start at January 1, 2000 at midnight (12:00 AM).

The user can manually enter calendar and clock values and send the values to the real-time clock by clicking on the Update RTC button. Or the user can click on the Set RTC to System Time button to set the real-time clock to the date and time of the computer.

C clock-calendar device. The

PICkit™ Serial Analyzer User’s Guide

FIGURE 2-3: 28-PIN DEMO I2C™ – RTC

2.7.2 Serial EEPROM (EEPROM)

Clicking on the EEPROM tab will display the 256 byte array of EEPROM memory as shown in Figure 2-4. The 28-Pin Demo Board has been programmed to emulate a stand-alone serial I very similar to the commands used in these devices.

The Serial EEPROM tab displays the contents of a serial EEPROM implemented on the 28-Pin Demo Board. When this tab is first displayed, the values are grayed out. This means that the display does not match the contents of the emulated serial EEPROM. Click on Read EE button and the program will read and display the contents of the 28-Pin Demo Board. Notice that the displayed values are now black.

Individual memory locations can be changed by clicking on the value and typing in a new value in hexadecimal. Notice that the changed values will be displayed in red. This means the value has changed but has not been written to the emulated serial EEPROM. Click on the Write EE button and the values will be written. The color of the value will turn to black indicating that the value has been written and the display matches the contents of the emulated serial EEPROM.

C EEPROM device such as a 24LC02. The I2C commands are

FIGURE 2-4: 28-PIN DEMO I2C™ – EEPROM

Getting Started

2.7.3 Analog-to-Digital Converter (ADC)

Clicking on the ADC tab will show a meter gauge displaying the value of the ADC as read from potentiometer RP1 as shown in Figure 2-5.

The meter gauge displays the Most Significant 8 bits of the 10-bit ADC internal to the

PIC

microcontroller. Rotate potentiometer RP1 and the display changes almost instantaneously. The demonstration program will constantly poll the 28-Pin Demo Board and display the contents of the ADC.

FIGURE 2-5: 28-PIN DEMO I

C™ – ADC

PICkit™ Serial Analyzer User’s Guide

2.8 I2C™ COMMUNICATIONS – BASIC OPERATIONS

Individua l I2C commands and data can be read and written to the 28-Pin Demo Board from the Basic Operations window as shown in Figure 2-6. Ensure that the PICkit Serial Analyzer program is in I figuration Wizard from the menu bar and selecting I2C Master.

C Master mode by selecting PICkit Serial Analyzer > Run Con-

Note: The 28-Pin Demo I

opened at the same time. When the 28-Pin Demo I the Basic Operations window will automatically close.

FIGURE 2-6: I

C™ BASIC OPERATIONS

C window and the Basic Operations window cannot be

C window is opened,

2.8.1 Real-Time Clock (RTC)

The Slave address for the emulated real-time clock on the 28-Pin Demo Board is hexadecimal A2 (0xA2). The Word Address selects the following memory locations:

TABLE 2-1: MEMORY LOCATIONS

Word Address Contents

0x00 Configuration 1 0x01 Configuration 2 0x02 Seconds 0x03 Minutes 0x04 Hours 0x05 Days 0x06 Weekdays 0x07 Months 0x08 Years

Getting Started

For example, to read seconds from the real-time clock: Step 1 – Enter 0xA2 into the Slave Address[W] block in the Read section of the Basic

Operations window (top half of window) Step 2 – Enter 0x02 into the Word Address block Step 3 – Note that the Slave Address[R] has already been entered for you (the Read

bit is set). Step 4 – Enter 0x01 into the Byte Count block Step 5 – Click on the Execute button

The I

C combination command (Write then Read) will be sent to the 28-Pin Demo Board. The command and the contents of Word Address 0x02 (seconds) will be displayed in the transaction window as shown in Figure 2-7.

FIGURE 2-7: RTC TRANSACTIONS DEMO

2.8.2 EEPROM

The Slave address for the emulated Serial EEPROM on the 28-Pin Demo Board is hexadecimal A8 (0xA8). The Word Address selects one of 256 8-bit memory locations:

TABLE 2-2: WORD ADDRESS CONTENTS

Word Address Contents

0x00 Memory Contents … … 0xFF Memory Contents

2.8.3 ADC

The Slave address for the ADC on the 28-Pin Demo Board is hexadecimal AA (0xAA). The Word Address 0x01 selects the memory location containing the Most Significant 8 bits of the 10-bit ADC of the PIC microcontroller.

2.9 28-PIN DEMO I2C™ SOURCE CODE AND FIRMWARE

The demo program source code and *.hex file can be found on the PICkit Serial CD-ROM at D:\28-pin Demo Board\Firmware\

PICkit™ Serial Analyzer User’s Guide

NOTES:

PICkit™ SERIAL ANALYZER

USER’S GUIDE

Chapter 3. PICkit™ Serial Analyzer PC Program

3.1 INTRODUCTION

This chapter covers the installation, starting and high level operations of the PICkit Serial Analyzer program. Detailed information about the entering of data and commands for specific serial communications modes are given in the following chapters.

3.2 HIGHLIGHTS

This chapter discusses:

• Installing The PICkit Serial Analyzer Software

• Starting the Program

• Configuration Wizard

• Main Window

• Specific Communications Modes

3.3 INSTALLING THE PICkit™ SERIAL ANALYZER SOFTWARE

Insert the PICKit Serial Analyzer CD-ROM into the CD-ROM drive. In a few moments the introductory screen should be displayed. Follow the directions on the screen to install the PICkit Serial Analyzer software.

If the introductory screen does not appear, browse to the CD-ROM directory and select the AutorunPro.exe program.

Note: The PICkit Serial Analyzer program requires the Microsoft

Framework Version 2.0.

3.4 STARTING THE PROGRAM

You can start the program by

• Clicking on the desktop icon, or

• Navigating to Start>All Pr ograms>Microchip>PICkit Serial Analyzer After a few moments, the program will start and display the main window as shown in

Figure 3-1.

.NET

PICkit™ Serial Analyzer User’s Guide

FIGURE 3-1: PICkit™ SERIAL ANALYZER MAIN WINDOW

3.5 CONFIGURATION WIZARD

If it is the first time that the PICkit Serial Analyzer program is run, the Configuration Wizard will run automatically . The Configuration Wizard can be manually invoked by selecting PICkit Serial Analyzer > Run Configuration Wizard

The Configuration Wizard will guide you through the basic steps to configure the PICkit Serial Analyzer program for a specific communications mode (I Advanced configuration can be done from the Configuration Window by selecting PIC- kit Serial Analyzer > Configure Communications Mode from the menu bar.

As an example, Figure 3-2 through Figure 3-7 show how to configure for I mode. Refer to the specific communications chapter for detailed information on the Configuration Wizard for that communications mode.

The Configuration Wizard Welcome window is shown in Figure 3-2. You may choose to continue by clicking on the Next button or canceling the wizard by clicking on the Cancel button.

from the menu bar.

C, SPI, USART).

C Master

PICkit™ Serial Analyzer PC Program

FIGURE 3-2: CONFIGURATION WIZARD – WELCOME

The Configuration Wizard Page 1 of 4, as shown in Figure 3-3, displays the available communications modes and allows you to choose one of the modes.

FIGURE 3-3: CONFIGURATION WIZARD – PAGE 1 OF 4

In this example, I

C Master Communication’s mode is selected. The Configuration Wizard Page 2 of 4, as shown in Figure 3-4, allows you to select the bus speed. A more comprehensive list of bus speeds can be chosen from the Configuration Window by selecting PICkit Serial Analyzer > Configure Communications Mode

from the menu bar.

PICkit™ Serial Analyzer User’s Guide

FIGURE 3-4: CONFIGURATION WIZARD – PAGE 2 OF 4

C bus requires pull-up resistors. The PICkit Serial Analyzer has the ability to

The I enable internal 2.2 kΩ pull-up resistors. If the target device does not have pull-up resistors installed, then enable pull-ups by selecting the Yes radio button as shown in Figure 3-5. If the target device has the pull-up resistors installed, you can disable the internal pull-ups by selecting the No radio button.

FIGURE 3-5: CONFIGURATION WIZARD – PAGE 3 OF 4

The PICkit Serial Analyzer can power the target device from 0 to 5 V total current limit of 100 mA (PICkit Serial Analyzer plus target device). The Configuration Wizard Page 4 of 4, as shown in Figure 3-6, allows you to choose between powering the target device and selecting the specific target voltage.

DC at a combined

CAUTION

Even though the voltage can be set as low as 0 VDC, it is up to the user to verify the required operating voltage of the target device.

CAUTION

The USB port current limit is set to 100 mA. If the target plus PICkit Serial Analyzer exceeds this current limit, the USB port will turn off. The target may be powered externally if more power is required.

PICkit™ Serial Analyzer PC Program

FIGURE 3-6: CONFIGURATION WIZARD – PAGE 4 OF 4

Once all pages of the Configuration Wizard are completed, you can choose to not display the wizard at start up by checking the Do not show this wizard on start-up again check box.

FIGURE 3-7: CONFIGURATION WIZARD – Y OU’RE DONE!

3.6 MAIN WINDOW

3.6.1 Menu Bar

The menu bar selects various functions of the PICkit Serial Analyzer program. A summary of the functions are:

FIGURE 3-8: MENU BAR

Menu Bar

PICkit™ Serial Analyzer User’s Guide

COMMUNICATIONS The Communications menu selections display operation windows to enter data and

commands to communicate with the target device.

• Basic Operations mode selected (see PICkit Serial Analyzer -> Select Communications Mode)

•Script

PICkit™ SERIAL ANALYZER The PICkit Serial Analyzer menu selection commands the PICkit Serial Analyzer

hardware.

• Select Communications Mode

• Configure Communications Mode

• Download PICkit Serial Analyzer Firmwa re

• Run Configuration Wizard

• Perform Syste m Reset

• Reset PICkit Serial Analyzer

• PICkit Serial Analyzer No.

- Script Builder

- Script Execute

-I

C Master – Puts the PICkit Serial Anal yzer in I2C Master Communications

mode

-SPI Master

mode

- USART Asynchronous

nous Communications mode

- USART Synchronous Master

Synchronous Master Communications mode

Mode window for the communications mode selected (see PICkit Serial Analyzer

-> Select Communications Mode)

window. Firmware updates are available from the Microchip Technology web site.

PICkit Serial Analyzer

condition is present

from the PC software. The number is assigned to the hardware as it enumerates on the USB bus.

– Displays the Basic Operations window for the communications

– Displays the Script Builder window

– Displays the Script Execute window

– Puts the PICkit Serial Analyzer in SPI Master Communications

– Puts the PICkit Serial Analyzer in USART Asynchro-

– Puts the PICkit Serial Analyzer in USART

– Displays the Configuration Communications

– Displays the Firmware Download

– Displays the Configurat ion Wizard

– Closes and then reinitializes USB communications to the

– Resets the PICkit Serial Analyzer if an error

– Up to four PICkit Serial Analyzers can be controlled

DEMO BOARDS The Demo Boards menu selection displays the selected demonstration window. The

PICkit Serial Analyzer program will be automatically configured for the communications mode of the selected demonstr ation.

•28

-Pin Demo I2C – Displays the 28-Pin Demo Board I2C demo graphical user interface. For more informati on se e Appendix B. “28-Pin Demo Board I Firmware.”

USER DEFINED TEMPLATES

• Create Template

•My Templates VIEW

•Basic

– The PICkit Serial Analyzer program will display basic commands and

status view

– Displays the Parameter Template creation window

– Selects and displays template windows created by the user

C™

PICkit™ Serial Analyzer PC Program

• Advanced – The PICkit Serial Analyzer program will display advanced commands and status view

WINDOW

• New Transaction Window transaction windows can be opened as needed for logging communications.

•Close All

• Cascade

• Tile Horizontally

• Tile Vertically

HELP

• About

• Show PICkit Serial Analyzer Connections communications mode

• Show Even t By tes

– Closes all windows – Cascade windows

– Tile windows horizontally

– Tile windows vertically

– Displays program version information

– Displays Event Marker code for current communication mode

– Opens new or additional transaction window. Multiple

– Displays pinout for current

3.6.2 Tool Bar

FIGURE 3-9: TOOL BAR

Tool Bar

The Tool Bar gives quick access to often used commands. These commands are also available from the Menu Bar.

•View: Basic

• Reset

• Basic Communications communications mode selected

/Advanced – toggles between Basic and Advanced views

– Resets the PICkit Serial Analyzer if an error condition is present

– Displays the Basic Operations window for the

3.6.3 Status Col umn

The Status Column displays status information for the selected serial communications mode. In Ba sic V iew m ode, a simpl ified st atus i s disp layed a s show n in Fi gure 3-10. In Advanced View mode additional status information is displayed for the communications mode selected as shown in Figure 3-11.

The status information that is displayed depends on the selected communications mode (I status window for the particular serial communications mode.

C, SPI, USART). The following chapters give more detailed explanation of the

PICkit™ Serial Analyzer User’s Guide

FIGURE 3-10: STATUS COLUMN (BASIC VIEW)

FIGURE 3-11: STATUS COLUMN (ADVANCED VIEW)

Status Column

3.6.4 Tr ansactions Window

The Transactions window, shown in Figure 3-12, keeps a running log of the commands and data that are communicated between the PICkit Serial Analyzer program and target device.

From the menu bar on the Transaction window, the contents can be saved (File>Save to a *.txt or *.rtf file. The file can later be retrieved (File>Open Transactions window.

Additional Transactions windows can be displayed. From the PICkit Serial Analyzer menu bar , sel ect Window > New Transaction Window will log the current commands and data.

. The active Transactions window

) and displayed in the

)

PICkit™ Serial Analyzer PC Program

FIGURE 3-12: TRANSACTIONS WINDOW

Transactions Window

FILE

• Open

•Save

•Close

– Opens a *.txt or *.rtf file and displays it in the Transactions window

– Saves the contents of the Transactions window to a *.txt or *.rtf file

– Closes the selected Transactions window

EDIT

•Copy

– The selected contents of the Transactions window will be copied to the

clipboard

•Paste

•Select

•Clear All

– The contents of the clipboard will be pasted into the Transactions window

All – contents of the Transactions window will be selected

– The contents of the Transactions window will be cleared

The Transaction window also allows usage of the common keyboard shortcuts Ctrl-X, Ctrl-C, Ctrl-V to cut, copy and paste from the clipboard.

CLEAR – The contents of the Transactions window will be cleared

3.7 SERIAL COMMUNICATIONS MODES

Detailed information about the entering of data and commands for specific serial communications modes are given in the following chapters.

PICkit™ Serial Analyzer User’s Guide

NOTES:

Chapter 4. I2C™ Master Communications

4.1 INTRODUCTION

This chapter describes the I2C Master Communications mode. I2C data and commands can be entered using a Basic Communications window or by creating Script Commands.

It is assumed that the user is familiar with the I

• The I Semiconductor (formerly Philips Semiconductor) web site at http://www.nxp.com/acrobat_download/literature/9398/39340011.pdf

•An I web site. Click on the links: Support -> Getting Started -> PIC MCU Tutorials -> I2C Master Mode

• Several application notes are available on the Microchip Technology web site. Click on links: Design -> App Notes -> Function: Communications -> I2C

4.2 HIGHLIGHTS

PICkit™ SERIAL ANALYZER

USER’S GUIDE

C protocol . For more information see:

C-Bus Specification Version 2.1 January 2000 is available from NXP

C Master Communications tutorial is available on the Microchip Technology

This chapter discusses:

• PICkit Serial Pin Assignments

• Selecting Communications Mode

• Configuring I

• Communications: Basic Operations

• Script Builder

• Script Execute

C Communications Mode

4.3 PICkit SERIAL PIN ASSIGNMENTS

The PICkit Serial Analyzer pin assignments for I2C Master mode are:

TABLE 4-1: PIN ASSIGNMENTS

Pin Label Type Description

1 AUX1 Input/Output Auxiliary I/O port pin No. 1 2 +V Power Target Power 3 GND Power Ground 4 SDA Input/Output Serial Data 5 SCL Power Serial Clock 6 AUX2 Input/Output Auxiliary I/O port pin No. 2

4.4 SELECTING COMMUNICATIONS MODE

The I2C Master Communications mode is selected from the Configuration Wizard or menu bar.

Configuration Wizard – Select PICkit Serial Analyzer > Run Configuration Wizard from the menu bar

PICkit™ Serial Analyzer User’s Guide

Menu Bar – Select PICkit Serial Analyzer > Select Communications Mode > I2C

Master

4.5 CONFIGURING I2C COMMUNICATIONS MODE

Once the communications mode has been selected, it is configured from the Configuration Wizard or menu bar.

Configuration Wizard – Select PICkit Serial Analyzer > Run Configuration Wizard from the menu bar

Menu Bar – Select The Configure Mode window will open. Depending on the View selected, the Basic

View (Figures 4-1) displays a minimum choice of configurations commands. In the Advanced View (Figures 4-2) displays an extended choice of configuration commands.

Save the configuration by clicking on the Save Changes button.

PICkit Serial Analyzer > Configure Communications Mode

FIGURE 4-1: I

OPTIONS

• Enable Event Markers

• Enable Time Markers

• Enable Pull tion lines

VOLTAGE

-ups – Enable internal 2.2 kΩ pull-ups on SDA and SCL communica-

C™ CONFIGURE COMMUNICATIONS MODE – BASIC VIEW

– Enable event markers

– Enable ‘time’ stamp to accompany all event markers

• PICkit Serial will power my device power the target device. The target can be powered at 5 V variable voltage.

– Select the check box if the PICkit Serial will

DC or a user selectable

CAUTION

Even though the voltage can be set as low as 0 VDC, it is up to the user to verify the required operating voltage of the target device.

CAUTION

I2C™ Master Communications

COMM I2CM BIT RATE

Select the desired I2C bus bit rate using the drop down box.

FIGURE 4-2: I

EVENT MARKERS

•Abrt Mac Exe

• Macro Loop

• Mac Lp 65536

• Mac Lp Done

• Timeout Timer1

• Timeout Timer2

• Status Error

– Enable event marker: abort ‘macro’ execution

– Enable event marker: top of ‘macro’ loop

– Enable event marker: ‘macro’ loop count overflow (i.e., 65536)

– Enable event marker: ‘macro’ loop iterations complete

– Enable event marker: Timer1 expired – Enable event marker: Timer2 expired

– Enable event marker: change in status byte

C™ CONFIGURE COMMUNICATIONS MODE – ADVANCED

VIEW

•Start Bit

• Stop Bit

•Restart Bit

• Ack/Nack TX

• Ack/Nack RX

• Write Byte

• Read Byte

•TX Error

• Status Error ADVANCED OPTIONS

• Disable LED2 Default LED)

• Disable LED1 Default

• Enable Switch Test

- Switch Off (not depressed) – blink LED1, LED2 off

- Switch ON (depressed) – blink LED2, LED1 off

• AUX1 Default State

• AUX2 Default State

•AUX1 Direction

– Enable event marker – Start bit

– Enable event marker – Stop bit

– Enable event marker – Restart bit

– Enable event marker – Ack or Nack byte transmit

– Enable event marker – Ack or Nack byte received

– Enable event marker – write byte

– Enable event marker – read byte

– Enable event marker – TX error

– Enable event marker – change in I2C status byte

– Disable default LED2 behavior (LED2 = Yellow ‘Target’

– Disable default LED1 behavior (LED1 = Red ‘Busy’ LED)

– Enable low level switch test:

– AUX1 communication line – default state (0 | 1) – AUX2 communication line – default state (0 | 1)

– AUX1 communication line – direction: 1: input, 0: output

PICkit™ Serial Analyzer User’s Guide

• AUX2 Direction – AUX2 communication line – direction: 1: input, 0: output

4.6 COMMUNICATIONS: BASIC OPERATIONS

The I2C Basic Operations window can be opened by selecting:

• Communications: Basic Operations

• Communications > Basic Operations

The I

C Basic Operations window is shown in Figures 4-3. There are two basic

communications commands, Read and Write. Read performs a combination Write then Read commands to the target device (refer to

the I

C Specification reference in Section 4.1 “Introduction” above). The basic

structure of the command is:

• Start bit (S_)

• Slave Address[W] – Enter the slave address of the device to communicate with. The write bit should be cleared to indicate a write operation

• Word Address – Enter the word address

• Restart (RS),

• Slave Address[R] – The slave address with the write bit set will be automatically entered when the Slave Address[W] has been entered

• Byte Count – Enter the number of bytes to be read

• Stop bit (P_)

from the tool bar, or

from the menu bar

Note: The “x” indicates the value is a hexadecimal number. Clicking on “x” will

toggle it to a “d” indicating that the value is a decimal number.

Write performs a write operation to the target device (refer to The I reference in Section 4.1 “Introduction” above). The basic structure of the command is:

• Start bit (S_)

• Slave Address[W] – Enter the slave address of the device to communicate with. The write bit should be cleared to indicate a write operation.

• Word Address – Enter the word address

• Data – Enter up to eight bytes of data

• Stop bit (P_)

The command will be logged in the Transactions window. A listing of the command abbreviations is given in Table 4-2.

C Specification

FIGURE 4-3: I2C™ BASIC OPERATIONS

4.7 SCRIPT BUILDER

I2C commands can be combined into scripts, saved, and used over again. The Script Builder window is opened by selecting Communications > Script > Script Builder the menu ba r. The Script Builder is shown in Figures 4-4.

The Script Builder window is divided into four columns as shown in Figures 4-5 through 4-8.

I2C™ Master Communications

from

FIGURE 4-4: I

C™ SCRIPT BUILDER

4.7.1 Script Commands

The left most column contains the Script Commands as shown in Figures 4-5.

•Script Name

• Save Script

• Execute Script column

•Clear Script

• Del User Scripts

•Show Array may be entered. This data can be included in the script by right clicking in a Script Detail cell and choosing “Insert Array”.

– Enter the name of the script

– Saves the script

– Executes (performs) the script displayed in the Script Detail

– Clears the Script Detail column

– Deletes scripts from the User Scripts column.

– Displays a spreadsheet-like table in which large amounts of data

PICkit™ Serial Analyzer User’s Guide

FIGURE 4-5: I2C™ SCRIPT BUILDER – SCRIPT COMMANDS

Script Commands

4.7.2 Example Scripts

The second column contains Example Scripts as shown in Figures 4-6. These can be studied to learn how to create or to edit custom scripts. T o load the example script into the Script Detail column, either double click or right click and select from the local menu.

FIGURE 4-6: I

C™ SCRIPT BUILDER – EXAMPLE SCRIPTS

Example Scripts

4.7.3 Script Detail

The third column contains Script Detail as shown in Figures 4-7. This column is used to create the script or view an existing script. More information about creating a custom script is discussed in Section 4.7.5 “Creating A Script”.

To load a user script from the User Scripts column into the Script Detail column, the user can double click or right click and select from the local menu.

Note: The “x” indicates the value is a hexadecimal number. Clicking on “x” will

toggle it to a “d” indicating that the value is a decimal number.

I2C™ Master Communications

FIGURE 4-7: I2C™ SCRIPT BUILDER – SCRIPT DETAIL

Script Detail

4.7.4 User Scripts

The fourth column contains User Scripts as shown in Figures 4-8. User scripts that are created, n amed, and saved are displayed in the User Scripts column.

To load a user script from the User Scripts column into the Script Detail column, the user can double click or right click and select from the local menu.

User Scripts can be deleted by right clicking and selecting Delete Script from the local menu.

FIGURE 4-8: I

C™ SCRIPT BUILDER – USER SCRIPTS

User Scripts

4.7.5 Creating A Script

Scripts are created by placing the cursor into the Script Detail column and right clicking. A local menu will be displayed as shown in Figures 4-9. Select from the choice of commands or script macro commands.

The sequence of macro commands are executed from top to bottom. Macro commands are entered by right clicking in the box and selecting from the local menu as shown in Figures 4-9.

PICkit™ Serial Analyzer User’s Guide

Macro commands are entered according to the sequence of events as defined by the

C bus protocol. Studying the example scripts is a good way to learn the sequence of

events. The example scripts can also be modified and saved under a different name.

CAUTION

The choice of macro commands is very flexible. Therefore, the correctness of the script has to be verified by the user. The PICkit Serial Analyzer program does not verify the correctness of the script.

A complete listing of the available macro commands is given in Table 4-2. The macro command abbreviation will be displayed in the Transactions Window. The Transactions window keeps a running log of the commands and data sent to and from the target device.

FIGURE 4-9: I

C™ SCRIPT BUILDER – CREATING A SCRIPT

TABLE 4-2: I2C™ SCRIPT MACRO COMMAND

Macro Command

I2CINIT [I_] I I2CSTART [S_] I2C™ Start I2CSTOP [P_] I2C™ Stop I2CRESTART [RS] I2C™ Restart I2CWRTBYT [W_] I2C™ Write Bytes. Next byte is the byte count,

I2CRDBYT [R_] I2C™ Read Bytes. Next byte is the byte count. I2CRDBLK [RB] I2C™ Read Block I2CBITRATE [BR] Set I2C™ Bit Rate - min:0 = 35k, ma x:127 = 100k.

I2CRESET [RE] Reset MSSP module I2CRDBYTNLB [RN] Read bytes - NACK last byte. Next byte is the byte

I2CRDBLKNLB [RBN] Read block - NACK last byte I2CAUX1RST [A1RST] Reset AUX1

Command

Abbreviation

Description

C™ Initialization

followed by the data.

Next byte is the bit rate.

count

TABLE 4-2: I2C™ SCRIPT MACRO COMMAND (CONTINUED)

I2CAUX1SET [A1RST] Set AUX1 I2CAUX1OUT [A1OUT] Set AUX1 direction to Output I2CAUX1IN [A1IN] Set AUX1 direction to Input I2CAUX1W0 [A1W0] AUX1 Wait 0 I2CAUX1W1 [A1W1] AUX1 Wait 1 I2CAUX2RST [A2RST] Reset AUX2 I2CAUX2SET [A2RST] Set AUX2 I2CAUX2OUT [A2OUT] Set AUX2 direction to Output I2CAUX2IN [A2IN] Set AUX2 direction to Input I2CAUX2W0 [A2W0] AUX2 Wait 0 I2CAUX2W1 [A2W1] AUX2 Wait 1

4.8 SCRIPT EXECUTE

The Script Execute window is shown in Figures 4-10. Once scripts are created using the Script Builder, they can be assigned to buttons in the Script Execute window. This makes a convenient window to execute multiple scripts either individually or iteratively. Script executing will be logged in the Transactions window. The Script Execute window is opened by selecting Communications > Script > Script Execute

I2C™ Master Communications

from the menu bar.

FIGURE 4-10: I

C™ SCRIPT EXECUTE

4.8.1 Assignable Buttons

User created scripts will be displayed in the central I2C Scripts column. To assign a script to a button, click on the script name and drag it to the desired Assignable Buttons in the right column. The script will be executed once each time the button is clicked.

The Assignable Buttons can be cleared by clicking on the Cle ar Buttons button.

PICkit™ Serial Analyzer User’s Guide

4.8.2 Iteration

Scripts can be executed a user defined number of times at a specified interval of time. Figures 4-11 shows an example. A script named Read_Memory has been assigned to the Iteration button in the left column. The number of iterations are entered in the Iterations box and the delay in millisecond in the Delay box. A summary of the iterations is displayed in the left column. The macro is executed when the Iteration button is clicked.

FIGURE 4-11: I

C™ SCRIPT EXECUTE – EXAMPLE

Chapter 5. SPI Master Communications

5.1 INTRODUCTION

This chapter describes the SPI Master Communications mode. SPI data and commands can be entered using a Basic Communications window or by creating Script Commands.

It is assumed that the user is familiar with the SPI protocol. For more information see: An SPI tutorial is available on the Microchip Technology web site. Click on the links:

Support -> Getting Started -> PIC MCU Tutorials -> SPI - PICmicro Serial Peripheral Interface

Several application notes are available on the Microchip Technology web site. Click on links: Design -> App Notes -> Function: Communications -> SPI

5.2 HIGHLIGHTS

This chapter discusses:

• PICkit Serial Analyzer Pin Assignments

• Selecting Communications Mode

• Configurating SPI Communications Mode

• Communications: Basic Operations

• Script Builder

• Script Execute

PICkit™ SERIAL ANALYZER

USER’S GUIDE

5.3 PICkit™ SERIAL ANALYZER PIN ASSIGNMENTS

The PICkit Serial Analyzer pin assignments for SPI Master mode are:

TABLE 5-1: PIN ASSIGNMENTS

Pin Label Type Description

1 CS Output Chip Select (Active Low) 2 +V Power Targ et Power 3 GND Power Ground 4 SDI Input Serial Data In (with respect to the

5 SCK Output Serial Clock 6 SDO Output Serial Data Out (with respect to the

5.4 SELECTING COMMUNICATIONS MODE

The SPI Master Communications mode is selected from the Configuration Wizard or menu bar.

Configuration Wizard – Select PICkit Serial Analyzer > Run Configuration Wizard from the menu bar

PICkit Serial Analyzer)

PICkit™ Serial Analyzer User’s Guide

Menu Bar – Select PICkit Serial Analyzer > Select Communications Mode > SPI

Master

5.5 CONFIGURATING SPI COMMUNICATIONS MODE

Once the communications mode has been selected, it is configured from the Configuration Wizard or menu bar.

Configuration Wizard – Select PICkit Serial Analyzer > Run Configuration Wizard from the menu bar

Menu Bar – Select PICkit Serial Analyzer > Configure Communications Mode The Configure Mode window will open. Depending on the View selected, the Basic

View (Figure 5-1) displays a minimum choice of configurations commands. In the Advanced View (Figure 5-2) displays an extended choice of configuration commands.

Save the configuration by clicking on the Save Changes button.

FIGURE 5-1: SPI CONFIGURE COMMUNICATIONS MODE – BASIC VIEW

OPTIONS

• Enable Event Markers

• Enable Time Markers VOLTAGE

• PICkit Serial will power my device power the target device. The target can be powered at 5 V variable voltage.

– Enable event markers

– Enable ‘time’ stamp to accompany all event markers

– Select the check box if the PICkit Serial will

DC or a user selectable

CAUTION

Even though the voltage can be set as low as 0 VDC, it is up to the user to verify the required operating voltage of the target device.

CAUTION

SPI Master Communications

SPI BIT RATE Select the desired SPI bit rate by selecting the radio button for the desired range and

then selecting the bit rate using the slider.

FIGURE 5-2: SPI CONFIGURE COMMUNICATIONS MODE – ADVANCED

VIEW

EVENT MARKERS

•Abrt Mac Exe

• Macro Loop

• Mac Lp 65536

• Mac Lp Done

• Timeout Timer1

• Timeout Timer2

• Status Error

• Write Byte

• Read Byte

•Status Err ADVANCED OPTIONS

• Disable LED2 Default LED)

• Disable LED1 Default

• Enable Switch Test

- Switch Off (not depressed)

- Switch ON (depressed)

• Sample Phase

• Clock Edge Select

• Clock Polarity

• Auto Output Disable SDO lines to be shorted for 3-wire communication.

– Enable event marker: abort ‘macro’ execution

– Enable event marker: top of ‘macro’ loop

– Enable event marker: ‘macro’ loop count overflow (i.e., 65536)

– Enable event marker: ‘macro’ loop iterations complete

– Enable event marker: Timer1 expired – Enable event marker: Timer2 expired

– Enable event marker: change in status byte

– Enable event marker – write byte

– Enable event marker – read byte

– Enable event marker – change in SPI status byte

– Disable default LED2 behavior (LED2 = Yellow ‘Target’

– Disable default LED1 behavior (LED1 = Red ‘Busy’ LED)

– Enable low level switch test:

– blink LED1, LED2 off

– blink LED2, LED1 off

– SPI transaction configuration: Sample phase

– SPI transaction configuration: Clock Edge

– SPI transaction configuration: Clock Polarity

– Disables output during input. Allows the SDI lines and the

PICkit™ Serial Analyzer User’s Guide

5.6 COMMUNICATIONS: BASIC OPERATIONS

The SPI Basic Operations window can be opened by selecting:

• Communications: Basic Operations

• Communications > Basic Operations The SPI Basic Operations window is shown in Figure 5-3. The Basic Operations win-

dow is organized into five columns. Individual columns are enabled by clicking on the Enable check box.

The Send button indicates that the column boxes are used to enter data bytes that will be transmitted to the target device. Clicking on the Send button toggles the column mode to Rcv (Receive) and the number of received bytes is entered as shown in Figure 5-4.

Clicking on the Execute button will execute the enabled columns in order from left to right.

The Clear button clears all boxes.

Note: The “x” indicates the value is a hexadecimal number. Clicking on “x” will

toggle it to a “d” indicating that the value is a decimal number.

The commands will be logged in the Transactions window. A listing of the command abbreviations is given in Table 5-2.

from the tool bar, or

from the menu bar

FIGURE 5-3: SPI BASIC OPERATION S

SPI Master Communications

FIGURE 5-4: SPI BASIC OPERATION S

5.6.1 Basic Communications – Serial EEPROM Example

Figures 5-5 through 5-7 demonstrates how to communicate with a 25LC020A SPI serial EEPROM. Refer to the 25LC020A Data Sheet (DS21833) for a detailed explanation of its SPI communications.

Before data can be written to the 25LC020A, the write enable (WREN) latch must be set. This requires that CS Figure 5-5 shows only Group 0 enabled. All other groups are disabled. Clicking on the Execute button will transmit only the WREN command. The command will be logged in the Transactions window.

be enabled, command 0x06 transmitted, and CS disabled.

FIGURE 5-5: SEEPROM EXAMPLE – WREN COMMAND

Once the WREN latch has been enabled, data can be written to the 25LC020A. Figure 5-6 shows that Group 0 has been disabled, and Group 1 enabled. Clicking on the Execute button will send the Write command (0x02), the memory address (0x00), followed by three bytes of data: 0xAA, 0xBB, and 0xCC. The command will be logged in the Transactions window.

PICkit™ Serial Analyzer User’s Guide

FIGURE 5-6: SEEPROM EXAMPLE – WRITE BYTES

Figure 5-7 shows how to read data from the 25LC020A. Groups 0 and 1 are disabled, and Groups 2 and 3 are enabled. This example shows how data is transmitted and received in one transaction (Chip Select, CS Execute button will send the Read command (0x03) and memory address (0x00) of Group 2 followed by a Read Ten Bytes command in Group 3. The commands and received data are displayed in the transactions window.

, active) between Groups. Clicking on the

FIGURE 5-7: SEEPROM EXAMPLE – READ BYTES

5.7 SCRIPT BUILDER

SPI commands can be combined into scripts, saved, and used over again. The Script Builder window is opened by selecting Communications > Script > Script Builder the menu bar. The Script Builder is shown in Figure 5-8.

The Script Builder window is divided into four columns as shown in Figures 5-9 through 5-12.

from

SPI Master Communications

FIGURE 5-8: SPI SCRIPT BUILDER

5.7.1 Script Commands

The left most column contains the Script Commands as shown in Figure 5-9.

•Script Name

• Save Script

• Execute Script column

•Clear Script

• Del User Scripts

•Show Array may be entered. This data can be included in the script by right clicking in a Script Detail cell and choosing “Insert Array”.

– Enter the name of the script

– Saves the script

– Executes (performs) the script displayed in the Script Detail

– Clears the Script Detail column

– Deletes scripts from the User Scripts column.

– Displays a spreadsheet-like table in which large amounts of data

FIGURE 5-9: SPI SCRIPT BUILDER – SCRIPT COMMANDS

Script Commands

5.7.2 Example Scripts

The second column contains Example Scripts as shown in Figure 5-10. These can be studied to learn how to create or to edit custom scripts. T o load the example script into the Script Detail column, either double click or right click and select from the local menu.

PICkit™ Serial Analyzer User’s Guide

FIGURE 5-10: SPI SCRIPT BUILDER – EXAMPLE SCRIPTS

Example Scripts

5.7.3 Script Detail

The third column contains Script Detail as shown in Figure 5-11. This column is used to create the script or view an existing script. More information about creating a customer script is discussed in Section 5.7.5 “Creating A Script”.

To load a user script from the User Scripts column into the Script Detail column, the user can double click or right click and select from the local menu.

Note: The “x” indicates the value is a hexadecimal number. Clicking on “x” will

toggle it to a “d” indicating that the value is a decimal number.

FIGURE 5-11: I

C™ SCRIPT BUILDER – SCRIPT DETAIL

Script Detail

5.7.4 User Scripts

The fourth column contains User Scripts as shown in Figure 5-12. User scripts that are created, named, and saved are displayed in the User Scripts column.

To load a user script from the User Scripts column into the Script Detail column, the user can double click or right click and select from the local menu.

User Scripts can be deleted by right clicking and selecting Delete Script from the local menu.

SPI Master Communications

FIGURE 5-12: SPI SCRIPT BUILDER – USER SCRIPTS

User Scripts

5.7.5 Creating A Script

Scripts are created by placing the cursor into the Script Detail column and right clicking. A local menu will be displayed as shown in Figure 5-13. Select from the choice of commands or script macro commands.

The sequence of macro commands are executed from top to bottom. Macro commands are entered by right clicking in the box and selecting from the local menu as shown in Figure 5-13.

Macro commands are entered according to the sequence of events as defined by the SPI bus protocol. Studying the example scripts is a good way to learn the sequence of events. The example scripts can also be modified and saved under a different name.

CAUTION

A complete listing of the available macro commands is given in Table 5-2. The macro command abbreviation will be displayed in the Transactions Window. The Transactions window keeps a running log of the commands and data sent to and from the target device.

PICkit™ Serial Analyzer User’s Guide

FIGURE 5-13: SPI SCRIPT BUILDER – CREATING A SCRIPT

TABLE 5-2: SPI SCRIPT MACRO COMMAND

Macro Command

SPIBITRATE [BR] Set Bit Rate. Next byte is the scaler, followed by

SPIDATIN [DI] Input data. Next byte is the byte count. SPIDATOUT [DO] Output data. Next byte is the byte count, followed

SPIDATIO [DIO] Output data SPISDOIN [SI] Set SDO pin to Input (tri-state) SPISDOOUT [SO] Set SDO pin to Output SPIINIT [I_] Initialize SPI controller SPICSON [CSON] Assert CS (active-low) SPICSOFF [CSOF] De-assert CS (active-low)

Command

Abbreviation

the pre-scaler.

by the data.

Description

5.8 SCRIPT EXECUTE

The Script Execute window is shown in Figure 5-14. Once scripts are created using the Script Builder, they can be assigned to buttons in the Script Execute window. This makes a convenient window to execute multiple scripts either individually or iteratively. Script executing will be logged in the Transactions window.

SPI Master Communications

FIGURE 5-14: SPI SCRIPT EXECUTE

5.8.1 Assignable Buttons

User created scripts will be displayed in the central SPI Scripts column. To assign a script to a button, click on the script name and drag it to the desired Assignable Buttons in the right column. The script will be executed once each time the button is clicked.

The Assignable Buttons can be cleared by clicking on the Clear Buttons button.

5.8.2 Iteration

Scripts can be executed a user defined number of times at a specified interval of time. Figure 5-15 shows an example. A script named Read_Memory has been assigned to the Iteration button in the left column. The number of iterations are entered in the Iterations box and the delay in millisecond in the Delay box. A summary of the iterations is displayed in the left column. The macro is executed when the Iteration button is clicked.

FIGURE 5-15: SPI SCRIPT EXECUTE – EXAMPLE

PICkit™ Serial Analyzer User’s Guide

NOTES:

Chapter 6. USART Asynchronous Communications

6.1 INTRODUCTION

This chapter describes the USART Asynchronous Communications mode. USART Asynchronous data and commands can be entered using a Basic Communications window or by creating Script Commands.

It is assumed that the user is familiar with the USART Asynchronous protocol. For more information see:

• USART, AUSART, or EUSART chapter of the PIC microcontroller data sheet of interest

• A USART Asynchronous Communications tutorial is available on the Microchip Technology web site. Click on the links: Support -> Getting Started -> PIC MCU Tutorials -> USART - Using in Asynchronous Mode

• Several application notes are available on the Microchip Technology web site. Click on links: Design -> App Notes -> Function: Communication -> USART

6.2 HIGHLIGHTS

PICkit™ SERIAL ANALYZER

USER’S GUIDE

This chapter discusses:

• PICkit Serial Pin Assignments

• Selecting Communications Mode

• Configuring USART Asynchronous Communications Mode

• Communications: Basic Operations

• Script Builder

• Script Execute

6.3 PICkit SERIAL PIN ASSIGNMENTS

The PICkit Serial Analyzer pin assignments for USART Asynchronous Communications mode are:

TABLE 6-1: USART ASYNCHRONOUS PIN ASSIGNMENTS

Pin Label Type Description

1 TX Output Transmit Data (with respect to the

2 +V Power Target Pow er 3 GND Power Ground 4 AUX1 Input/Output Auxiliary I/O port pin No. 1 5 AUX2 Input/Output Auxiliary I/O port pin No. 2 6 RX Input Receive Data (with respect to the

PICkit™ Serial Analyzer)

PICkit™ Serial Analyzer User’s Guide

6.4 SELECTING COMMUNICATIONS MODE

The USART Asynchronous Communications mode is selected from the Configuration Wizard or menu bar.

Configuration Wizard – Select PICkit Serial Analyzer > Run Configuration Wizard from the menu bar

Menu Bar – Select PICkit Serial Analyzer > Select Communications Mode > USART Asynchronous

6.5 CONFIGURING USART ASYNCHRONOUS COMMUNICATIONS MODE

Once the communications mode has been selected, it is configured from the Configuration Wizard or menu bar.

Configuration Wizard – Select PICkit Serial Analyzer > Run Configuration Wizard from the menu bar

Menu Bar – S The Configure Mode window will open. Depending on the view selected, the Basic View

(Figure 6-1) displays a minimum choice of configurations commands. In the Advanced View (Figure 6-2) displays an extended choice of configuration commands.

Save the configuration by clicking on the Save Changes button.

elect PICkit Serial Analyzer > Configure Communications Mode

FIGURE 6-1: USART ASYNCHRONOUS CONFIGURE COMMUNICATIONS

MODE – BASIC VIEW

OPTIONS

• Enable Event Markers

• Enable Time Markers VOLTAGE

• PICkit Serial will power my device power the target device. The target can be powered at 5 V variable voltage.

– Enable event markers

– Enable ‘time’ stamp to accompany all event markers

– Select the check box if the PICkit Serial will

DC or a user selectable

CAUTION

Even though the voltage can be set as low as 0 VDC, it is up to the user to verify the required operating voltage of the target device.

USART Asynchronous Communications

CAUTION

USART BAUD Enter the desired USART symbol rate (Baud) in the text box.

FIGURE 6-2: USART ASYNCHROUNOUS CONFIGURE

COMMUNICATIONS MODE – ADVANCED VIEW

EVENT MARKERS

•Abrt Mac Exe

• Macro Loop

• Mac Lp 65536

• Mac Lp Done

• Timeout Timer1

• Timeout Timer2

• Status Error

• Read Byte

• Write Byte

• Status Error

•Break TX ADVANCED OPTIONS

• Disable LED2 Default LED)

• Disable LED1 Default

• Enable Switch Test

UX1 Default State – AUX1 communication line – default state (0 | 1)

•A

• AUX2 Default State

•AUX1 Direction

•AUX2 Direction

• Async Receiv e Disabled

– Enable event marker: abort ‘macro’ execution

– Enable event marker: top of ‘macro’ loop

– Enable event marker: ‘macro’ loop count overflow (i.e., 65536)

– Enable event marker: ‘macro’ loop iterations complete

– Enable event marker: Timer1 expired – Enable event marker: Timer2 expired

– Enable event marker: change in status byte

– Enable event marker – read byte

– Enable event marker – write byte

– Enable event marker – change in USART status byte

– Enable event marker – A “Break” has been transmitted

– Disable default LED2 behavior (LED2 = Yellow ‘Target’

– Disable default LED1 behavior (LED1 = Red ‘Busy’ LED)

– Enable low level switch test:

– AUX2 communication line – default state (0 | 1) – AUX1 communication line – direction: 1: input, 0: output – AUX2 communication line – direction: 1: input, 0: output

– Received Data is disabled

PICkit™ Serial Analyzer User’s Guide

6.6 COMMUNICATIONS: BASIC OPERATIONS

The USART Asynchronous Operations window can be opened by selecting:

• Communications: Basic Operations

• Communications > Basic Operations The USART Asynchronous Basic Operations window is shown in Figure 6-3. There are

two basic communications commands, Read and Write. Data can be transmitted to the target device as 7-bit ASCII or 8-bit byte. 7-bit ASCII

data is entered in the left hand window. 8-bit byte is entered in the right hand column. Both transmitted and received data is displayed in the Transaction window.

Note: The “x” indicates the value is a hexadecimal number. Clicking on “x” will

toggle it to a “d” indicating that the value is a decimal number.

The command will be logged in the Transactions window. A listing of the command abbreviations is given in Table 6-2.

FIGURE 6-3: USART ASYNCHRONOUS BASIC OPERATIONS

from the tool bar, or

from the menu bar

6.7 SCRIPT BUILDER

USART Asynchronous commands can be combined into scripts, saved, and used over again. The Script Builder window is opened by selecting Communications > Script > Script Builder from the menu bar. The Script Builder is shown in Figure 6-4.

The Script Builder window is divided into four columns as shown in Figures 6-5 through 6-8.

USART Asynchronous Communications

FIGURE 6-4: USART ASYNCHRONOUS SCRIPT BUILDER

6.7.1 Script Commands

The left most column contains the Script Commands as shown in Figure 6-5.

•Script Name

• Save Script

• Execute Script column

•Clear Script

• Del User Scripts

•Show Array may be entered. This data can be included in the script by right clicking in a Script Detail cell and choosing “Insert Array”.

– Enter the name of the script

– Saves the script

– Executes (performs) the script displayed in the Script Detail

– Clears the Script Detail column

– Deletes scripts from the User Scripts column.

– Displays a spreadsheet-like table in which large amounts of data

FIGURE 6-5: USART ASYNCHRONOUS SCRIPT BUILDER – SCRIPT

COMMANDS

Script Commands

PICkit™ Serial Analyzer User’s Guide

6.7.2 Example Scripts

The second column contains Example Scripts as shown in Figure 6-6. These can be studied to learn how to create or to edit custom scripts. T o load the example script into the Script Detail column, either double click or right click and select from the local menu.

FIGURE 6-6: USART ASYNCHRONOUS SCRIPT BUILDER – EXAMPLE

SCRIPTS

Example Scripts

6.7.3 Script Detail

The third column contains Script Detail as shown in Figure 6-7. This column is used to create the script or view an existing script. More information about creating a customer script is discussed in Section 6.7.5 “Creating A Script”.

To load a user script from the User Scripts column into the Script Detail column, the user can double click or right click and select from the local menu.

Note: The “x” indicates the value is a hexidecimal number. Clicking on “x” will

toggle it to a “d” indicating that the value is a decimal number.

USART Asynchronous Communications

FIGURE 6-7: USART ASYNCHRONOUS SCRIPT BUILDER – SCRIPT

DETAIL

Script Detail

6.7.4 User Scripts

The fourth column contains User Scripts as shown in Figure 6-8. User scripts that are created, named, and saved are displayed in the User Scripts column.

To load a user script from the User Scripts column into the Script Detail column, the user can double click or right click and select from the local menu.

User Scripts can be deleted by right clicking and selecting Delete Script from the local menu.

FIGURE 6-8: USART ASYNCHRONOUS SCRIPT BUILDER – USER

SCRIPTS

User Scripts

6.7.5 Creating A Script

Scripts are created by placing the cursor into the Script Detail column and right clicking. A local menu will be displayed as shown in Figure 6-9. Select from the choice of commands or script macro commands.

PICkit™ Serial Analyzer User’s Guide

The sequence of macro commands are executed from top to bottom. Macro commands are entered by right clicking in the box and selecting from the local menu as shown in Figure 6-9.

Macro commands are entered according to the sequence of events as defined by the USART Asynchronous protocol. Studying the example scripts is a good way to learn the sequence of events. The example scripts can also be modified and saved under a different name.

CAUTION

A complete listing of the available macro commands is given in T able 6-2. The macro command abbreviation will be displayed in the Transactions Window. The Transactions window keeps a running log of the commands and data sent to and from the target device.

FIGURE 6-9: USART ASYNCHRONOUS SCRIPT BUILDER – CREATING A

SCRIPT

TABLE 6-2: USART SCRIPT MACRO COMMANDS

Macro Command

USDATATX [TX] Transmit data. Next byte is the byte count, foll owed

USDATARX [RX] Receive data. Next byte is the byte count. USDATARXEN [ER] Enable Receive data monitor USDATARXDS [DR] Disable Receive data monitor USBREAKTX [BK] Send Break USBRKDATTX [BKD] Send Break, then data byte. Next byte is the data

USBAUD [BD] Set BAUD Rate. Next byte is BAUD (LSB) followed

US9BITSET [9S] Set 9-bit Data mode US9BITRST [9R] Reset 9-bit Data mode (sets 8-bit) USCLKPOLSET [CS] Set CLOCK POLARITY bit

Command

Abbreviation

Description

by the data.

byte.

by BAUD (MSB).

USART Asynchronous Communications

TABLE 6-2: USART SCRIPT MACRO COMMANDS (CONTINUED)

USCLKPOLRST [CR] Reset CLO CK POLARITY bit USINIT [I_] Initialize USART controller USRESET [RE] Reset USART controller. USAUX1RST [A1RST] Reset Aux1 USAUX1SET [A1RST] Set Aux1 USAUX1OUT [A1OUT] Set Aux1 direction to Output USAUX1IN [A1IN] Set Aux1 direction to Input USAUX1W0 [A1W0] Aux1 Wait 0 USAUX1W1 [A1W1] Aux1 Wait 1 USAUX2RST [A2RST] Reset Aux2 USAUX2SET [A2RST] Set Aux2 USAUX2OUT [A2OUT] Set Aux2 direction to Output USAUX2IN [A2IN] Set Aux2 direction to Input USAUX2W0 [A2W0] Aux2 Wait 0 USAUX2W1 [A2W1] Aux2 Wait 1

6.8 SCRIPT EXECUTE

The Script Execute window is shown in Figure 6-10. Once scripts are created using the Script Builder, they can be assigned to buttons in the Script Execute window. This makes a convenient window to execute multiple scripts either individually or iteratively. Script executing will be logged in the Transactions window.

FIGURE 6-10: USART ASYNCHRONOUS SCRIPT EXECUTE

6.8.1 Assignable Buttons

User created scripts will be displayed in the central USART Scripts column. T o assign a script to a button, click on the script name and drag it to the desired Assignable Buttons in the right column. The script will be executed once each time the button is clicked.

The Assignable Buttons can be cleared by clicking on the Cle ar Buttons button.

PICkit™ Serial Analyzer User’s Guide

6.8.2 Iteration

Scripts can be executed a user defined number of times at a specified interval of time. Figure 6-11 shows an example. A script named TX_Data has been assigned to the Iteration button in the left column. The number of iterations is entered in the Iterations box and the delay in milliseconds in the Delay box. A summary of the iterations is displayed in the left column. The macro is executed when the Iteration button is clicked.

FIGURE 6-11: USART ASYNCHRONOUS SCRIPT EXECUTE – EXAMPLE

PICkit™ SERIAL ANALYZER

USER’S GUIDE

Chapter 7. USART Master Synchron ous Communications

7.1 INTRODUCTION

This chapter describes the USART Synchronous Master Communications mode. USART Synchronous Master data and commands can be entered using a Basic Communications window or by creating Script Commands.

It is assumed that the user is familiar with the USART Synchronous protocol. For more information see:

• USART, AUSART, or EUSART chapter of the PIC microcontroller data sheet of interest

7.2 HIGHLIGHTS

This chapter discusses:

• PICkit Serial Pin Assignments

• Selecting Communications Mode

• Configuring USART Synchronous Master Communications Mode

• Communications: Basic Operations

• Script Builder

• Script Execute

7.3 PICkit SERIAL PIN ASSIGNMENTS

The PICkit Serial Analyzer pin assignments for USART Synchronous Master Communications mode are:

TABLE 7-1: USART SYNCHRONOUS MASTER PIN ASSIGNMENTS

Pin Label Type Description

1 CK Output Clock 2 +V Power Target Power 3 GND Power Ground 4 5 6 DT Input/Output Data

AUX1 Input/Output Auxiliary I/O port pin No. 1 AUX2 Input/Output Auxiliary I/O port pin No. 2

7.4 SELECTING COMMUNICATIONS MODE

The USART Synchronous Master Communications mode is selected from the Configuration Wizard or menu bar.

Configuration Wizard – Select PICkit Serial Analyzer > Run Configuration Wizard from the menu bar

Menu Bar – Select PICkit Serial Analyzer > Select Communications Mode > USART Synchronous Master

PICkit™ Serial Analyzer User’s Guide

7.5 CONFIGURING USART SYNCHRONOUS MASTER COMMUNICATIONS MODE

Once the communications mode has been selected, it is configured from the Configuration Wizard or menu bar.

Configuration Wizard – Select PICkit Serial Analyzer > Run Configuration Wizard from the menu bar

Menu Bar – Select PICkit Serial Analyzer > Configure Communications Mode The Configure Mode window will open. Depending on the view selected, the Basic View

(Figure 7-1) displays a minimum choice of configurations commands. In the Advanced View (Figure 7-2) displays an extended choice of configuration commands.

Save the configuration by clicking on the Save Changes button.

FIGURE 7-1: USART SYNCHRONOUS MASTER CONFIGURE

COMMUNICATIONS MODE – BASIC VIEW

OPTIONS

• Enable Event Markers

• Enable Time Markers VOLTAGE

• PICkit Serial will power my device power the target device. The target can be powered at 5 V variable voltage.

– Enable event markers

– Enable ‘time’ stamp to accompany all event markers

– Select the check box if the PICkit Serial will

DC or a user selectable

CAUTION

Even though the voltage can be set as low as 0 VDC, it is up to the user to verify the required operating voltage of the target device.

CAUTION

USART Master Synchronous Communications

USART BAUD Enter the desired USART symbol rate (Baud) in the text box.

FIGURE 7-2: USART SYNCHRONOUS MASTER CONFIGURE

COMMUNICATIONS MODE – ADVANCED VIEW

EVENT MARKERS

•Abrt Mac Exe

• Macro Loop

• Mac Lp 65536

• Mac Lp Done

• Timeout Timer1

• Timeout Timer2

• Status Error

• Read Byte

• Write Byte

• Status Error

•Break TX ADVANCED OPTIONS

• Disable LED2 Default LED)

• Disable LED1 Default

• Enable Switch Test

- Switch Off (not depressed) – blink LED1, LED2 off

- Switch ON (depressed) – blink LED2, LED1 off

• AUX1 Default State

• AUX2 Default State

•AUX1 Direction

•AUX2 Direction

• Clock Polarity not

– Enable event marker: abort ‘macro’ execution

– Enable event marker: top of ‘macro’ loop

– Enable event marker: ‘macro’ loop count overflow (i.e., 65536)

– Enable event marker: ‘macro’ loop iterations complete

– Enable event marker: Timer1 expired – Enable event marker: Timer2 expired

– Enable event marker: change in status byte

– Enable event marker – read byte

– Enable event marker – write byte

– Enable event marker – change in USART status byte

– Enable event marker – A “Break” has been transmitted

– Disable default LED2 behavior (LED2 = Yellow ‘Target’

– Disable default LED1 behavior (LED1 = Red ‘Busy’ LED)

– Enable low level switch test:

– AUX1 communication line – default state (0 | 1)

– AUX2 communication line – default state (0 | 1) – AUX1 communication line – direction: 1: input, 0: output – AUX2 communication line – direction: 1: input, 0: output

– Checked means the polarity is inverted, unchecked means it is

PICkit™ Serial Analyzer User’s Guide

7.6 COMMUNICATIONS: BASIC OPERATIONS

The USART Asynchronous Operations window can be opened by selecting:

• Communications: Basic Operations

• Communications > Basic Operations The USART Synchronous Master Basic Operations window is shown in Figure 7-3.

There are two basic communications commands, Read and Write. Data can be transmitted to the target device as 7-bit ASCII or 8-bit byte. 7-bit ASCII

data is entered in the left hand window. 8-bit byte is entered in the right hand column. Both transmitted and received data is displayed in the transaction window.

Note: The “x” indicates the value is a hexadecimal number. Clicking on “x” will

toggle it to a “d” indicating that the value is a decimal number.

The command will be logged in the Transactions window. A listing of the command abbreviations is given in Table 7-2.

FIGURE 7-3: USART SYNCHRONOUS MASTER BASIC OPERATIONS

from the tool bar, or

from the menu bar

7.7 SCRIPT BUILDER

The Script Builder window is divided into four columns as shown in Figures 7-5 through 7-8.

USART Master Synchronous Communications

FIGURE 7-4: USART SYNCHRONOUS MASTER SCRIPT BUILDER

7.7.1 Script Commands

The left most column contains the Script Commands as shown in Figure 7-5.

•Script Name

• Save Script

• Execute Script column

•Clear Script

• Del User Scripts

•Show Array may be entered. This data can be included in the script by right clicking in a Script Detail cell and choosing “Insert Array”.

– Enter the name of the script

– Saves the script

– Executes (performs) the script displayed in the Script Detail

– Clears the Script Detail column

– Deletes scripts from the User Scripts column

– Displays a spreadsheet-like table in which large amounts of data

FIGURE 7-5: USART SYNCHRONOUS MASTER SCRIPT BUILDER –

SCRIPT COMMANDS Script Commands

7.7.2 Example Scripts

The second column contains Example Scripts as shown in Figure 7-6. These can be studied to learn how to create or to edit custom scripts. T o load the example script into the Script Detail column, either double click or right click and select from the local menu.

PICkit™ Serial Analyzer User’s Guide

FIGURE 7-6: USART SYNCHRONOUS MASTER SCRIPT BUILDER –

EXAMPLE SCRIPTS

Example Scripts

7.7.3 Script Detail

The third column contains Script Detail as shown in Figure 7-7. This column is used to create the script or view an existing script. More information about creating a customer script is discussed in Section 7.7.5 “Creating a Script”.

To load a user script from the User Scripts column into the Script Detail column, the user can double click or right click and select from the local menu.

Note: The “x” indicates the value is a hexadecimal number. Clicking on “x” will

toggle it to a “d” indicating that the value is a decimal number.

FIGURE 7-7: USART SYNCHRONOUS MASTER SCRIPT BUILDER –

SCRIPT DETAIL

Script Detail

7.7.4 User Scripts

The fourth column contains User Scripts Detail as shown in Figure 7-8. User scripts that are created, named, and saved are displayed in the User Scripts column.

To load a user script from the User Scripts column into the Script Detail column, the user can double click or right click and select from the local menu.

USART Master Synchronous Communications

User Scripts can be deleted by right clicking and selecting Delete Script from the local menu.

FIGURE 7-8: USART SYNCHRONOUS MASTER SCRIPT BUILDER – USER

SCRIPTS

User Scripts

7.7.5 Creating a Script

Scripts are created by placing the cursor into the Script Detail column and right clicking. A local menu will be displayed as shown in Figure 7-9. Select from the choice of commands or script macro commands.

The sequence of macro commands are executed from top to bottom. Macro commands are entered by right clicking in the box and selecting from the local menu as shown in Figure 7-9.

Macro commands are entered according to the sequence of events as defined by the USART Synchronous Master protocol. Studying the example scripts is a good way to learn the sequence of events. The example scripts can also be modified and saved under a different name.

CAUTION

A complete listing of the available macro commands is given in T able 7-2. The macro command abbreviation will be displayed in the Transactions Window. The Transactions window keeps a running log of the commands and data sent to and from the target device.

PICkit™ Serial Analyzer User’s Guide

FIGURE 7-9: USART SYNCHRONOUS MASTER SCRIPT BUILDER –

CREATING A SCRIPT

TABLE 7-2: USART SCRIPT MACRO COMMANDS

Macro Command

USDA TATX [TX] Transmit data. Next byte is the byte count, fol lo wed by

USDATARX [RX] Receive data. Next byte is the byte coun t. USDATARXEN [ER] Enable Receive data monitor USDATARXDS [DR] Disable Receive data monitor USBREAKTX [BK] Send Break USBRKDATTX [BKD] Send Break, then data byte. Next byte is the data byte. USBAUD [BD] Set BAUD Rate. Next byte is BAUD (LSB) followed by

US9BITSET [9S] Set 9-bit Data mode US9BITRST [9R] Reset 9-bit Data mode (sets 8-bit) USCLKPOLSET [CS] Set CLOCK POLARITY bit USCLKPOLRST [CR] Reset CLOCK POLARITY bit USINIT [I_] Initialize USART controller USRESET [RE] Reset USART controller. USAUX1RST [A1RST] Reset Aux1 USAUX1SET [A1RST] Set Aux1 USAUX1OUT [A1OUT] Set Aux1 direction to Output USAUX1IN [A1IN] Set Aux1 direction to Input USAUX1W0 [A1W0] Aux1 Wait 0 USAUX1W1 [A1W1] Aux1 Wait 1 USAUX2RST [A2RST] Reset Aux2 USAUX2SET [A2RST] Set Aux2 USAUX2OUT [A2OUT] Set Aux2 direction to Output USAUX2IN [A2IN] Set Aux2 direction to Input USAUX2W0 [A2W0] Aux2 Wait 0 USAUX2W1 [A2W1] Aux2 Wait 1

Command

Abbreviation

the data.

BAUD (MSB).

Description

USART Master Synchronous Communications

7.8 SCRIPT EXECUTE

The Script Execute window is shown in Figure 7-10. Once scripts are created using the Script Builder, they can be assigned to buttons in the Script Execute window. This makes a convenient window to execute multiple scripts either individually or iteratively. Script executing will be logged in the Transactions window.

FIGURE 7-10: USART ASYNCHRONOUS SCRIPT EXECUTE

7.8.1 Assignable Buttons

The Assignable Buttons can be cleared by clicking on the Clear Buttons button.

7.8.2 Iteration

Scripts can be executed a user defined number of times at a specified interval of time. Figure 7-11 shows and example. A script named TX_Data has been assigned to the Iteration button in the left column. The number of iterations is entered in the Iterations box and the delay in millisecond in the Delay box. A summary of the iterations is displayed in the left column. The macro is executed when the Iteration button is clicked.

FIGURE 7-11: USART ASYNCHRONOUS SCRIPT EXECUTE – EXAMPLE

PICkit™ Serial Analyzer User’s Guide

NOTES:

Chapter 8. User Defined Templates

8.1 INTRODUCTION

User Defined Templates extend User Scripts by interpreting the data read from the target device and displaying it in a human readable form. The conversion formula is:

EQUATION 8-1: CONVERSION FORMULA

Read Value * Slope + Offset = Display Value

For example, an 8-bit ADC value is read, and we desire a displayed value in voltage, 0 to 5 Volts. The 8-bit ADC value (read value) can be 0 to 256 decimal. The ADC reference voltage is 5 V ADC read value and the desired display value. In this example:

EQUATION 8-2: SLOPE EXAMPLE

Slope = ADC Reference Voltage / 8-bit ADC = 5 / 256 = 0.01953125

PICkit™ SERIAL ANALYZER

USER’S GUIDE

DC. The slope is the constant value used to convert between the

Using a User Defined Template, the interpretation of the ADC value can be displayed in volts DC.

8.2 HIGHLIGHTS

This chapter discusses:

• Create Templates

•My Templates

8.3 CREATE TEMPLATES

Create a User Define Template by selecting User Define Templates > Create T emplates from the menu bar. The Create Template window is displayed as shown in Figure 8-1.

Note: First, a user define script(s) must be created using the Script Builder win-

dow for the selected serial communications mode. Refer to the respective serial communications chapter under the Script Builder section.

PICkit™ Serial Analyzer User’s Guide

FIGURE 8-1: PARAME TER TEMPLATE

Create the Parameter Template by filling in the boxes. Each line is a single parameter, a value read converted to value displayed. Each line will be displayed as a button that will execute the individual parameter in the My Templates window.

• Parameter button that will execute this parameter in the My Templates window.

•Script displayed in the button that will execute this parameter in the My Templates window. This script must first be created using the Script Builder for the respective communicatio ns mod e.

• Return Data

• Start Byte the display

• # of Bytes

• Byte Order Most Significant to Least Significant

• Slope

•Offset

•Units

•Format

• Signed/Unsigned

• # of Dec. pts

– Enter a parameter name. This name will be displayed next to the

– Select a user defined script from the drop down box. This name will be

– Indicate if data is received (Yes) or not (No)

– Select which byte (of a possible series of bytes) that will be used for

– The number of bytes read

– Select Not Applicable (NA), Least Significant to Most Significant or

– Conversion value (read value * slope + offset = displayed value)

– Offset of read value (read value * slope + offset = displayed value)

– Units of measure

– Binary, Decimal, Hexadecimal, or BCD (Binary Coded Decimal)

– Select between Signed or Unsigned read value

– Select number of decimal points in the displayed value

Once the parameter(s) are entered, they can be saved as a User Defined Parameter file (*.udp).

• Open File

• Save/Replace

• Reset Array

– Open an existing User Defined Parameter file (*.udp)

– Save a User Defined Parameter file (*.udp)

– Resets (clears) all parameter boxes

8.4 MY TEMPLATES

When the User Defined Parameter file has been saved, it will be displayed under the

User Defined Templates > My Templates

Note: The User Defined Parameter file (*.udp) must be stored in the same direc-

FIGURE 8-2: SELECTING MY TEMPLATES

Selecting the User Defined template from the menu bar displays My T emplate window as shown in Figure 8-3.

User Defined Templates

on the menu bar, as shown in Figure 8-2.

tory as the PICkit Serial Analyzer executable (by default C:\Program Files\Microchip\PICkit Serial Analyzer). Otherwise it will not be displayed under the My Templates menu selection.

FIGURE 8-3: MY TEMPLATES – EXAMPLE

The My Templates window displays the name of the *.udp file in the title bar. For each line entered in the Create Templates window, the Script is displayed in a button, and the Parameter is displayed to the right of the button.

Clicking on an individual button will execute the individual Script/Parameter. The converted value will displayed in the box to the right of the button. The executed script will be logged in the Transactions window.

Clicking on the Execute All button will execute each of the individual buttons in order from top to bottom. The executed scripts will be logged in the Transactions window.

Clicking on the Clear All button will clear the values in the boxes.

PICkit™ Serial Analyzer User’s Guide

NOTES:

Chapter 9. PICkit™ Serial Analyzer Firmware

9.1 INTRODUCTION

This chapter explains the internal operations of the PICkit™ Serial Analyzer firmware. The source code is available on the PICkit Serial Analyzer CD-ROM at D:\PICkit Serial Analyzer\Firmware.

9.2 HIGHLIGHTS

This chapter discusses:

•EXEC

•COMM

•I

CM Communications

• SPI Communications

• USART Communications

9.3 OVERVIEW

PICkit™ SERIAL ANALYZER

USER’S GUIDE

Internally, the PICkit™ Serial Analyzer operates two firmware state controllers running in parallel – EXEC (executive) and COMM (communication). The EXEC controller is responsible for overall PICkit™ Serial Analyzer configuration, moving data to/from the host (via USB) and moving data to/from the COMM controller (via RAM buffers). The COMM controller supervises serial communication with the target device. This includes both configuring the necessary communication hardware and executing a sequential ‘script’ defining a serial ‘transaction’.

FIGURE 9-1: ARCHITECTURE

ARCHITECTURE

EXEC

USB

EP0-OUT

H O S

EP0-IN

EP1-OUT

EP1-IN

CONTROL

STATUS

CIRCULAR

BUFFERS

CBUF

(scratch)

CBUF1

(script/data)

CBUF2

(output/data)

COMM

CONTROL

I2C™

SPI

USART

D E V

I C E

Data streams associated with PICkit™ Serial Analyzer are formatted with markers called “TAG” bytes. A TAG may be stand-alone or accompanied by data. As seen in Table 9-1, the data stream for each state controller has a set of associated TAG bytes defined in detail later in the document.

PICkit™ Serial Analyzer User’s Guide

EXEC manages the interface with the host. The data stream sent to PICkit™ Serial Analyzer from the host is encoded with ECMD TAGs and the data stream returned to the host from PICkit™ Serial Analyzer uses EDATA TAGs. Likewise, the COMM controller utilizes another set of predefined TAG(s) - CCMD TAGs (outgoing scripts) and CDATA TAGs (returning data). EXEC has no knowledge of COMM TAG(s) but simply transports data blindly between the host and COMM using EXEC TAG(s). RAM buffers are used as conduits to exchange data with COMM. Data destined for COMM is queued in RAM buffer 1 (CBUF1). Data returning from COMM is funneled through RAM buffer 2 (CBUF2).

The PICkit™ Serial Analyzer is designed to facilitate continuous ‘spooling’ of data to/from the external serial device. Separate 255-byte circular buffers are maintained for both outgoing data (scripts/data) and returning data. The USB interface is not permitted to be a bottleneck in the PICkit™ Serial Analyzer operation. EXEC processes each USB packet immediately. If data is destined for a RAM buffer, the host is responsible to insure adequate room is available in the buffer before the data is sent to avoid a fatal ‘overrun’ error. Returning data is queued in the appropriate circular buffer until retrieved by EXEC, tagged and sent to the host. It is possible to overrun the return buffer under some circumstances but should be rare. EXEC can interleave EXEC data with COMM data as necessary.

The PICkit™ Serial Analyzer maintains fixed-length blocks of data for CONTROL and ST ATUS. The CONTROL_BLOCK provides ‘static’ configuration information. The STATUS_BLOCK is a snapshot of the PICkit™ Serial Analyzer operation. Each block is divided into three sections corresponding to EXEC, COMM (common to all protocols) and COMM (specific to the active serial protocol).

TABLE 9-1: TAG BYTE TYPES

TAG types Definition

ECMD EXEC command TAG(s) – interpreted by EXEC EDATA EXEC data TAG(s) – generated by EXEC CCMD COMM command TAG)(s) – interpreted by COMM CDATA COMM data TAG(s) – generated by COMM

The other major blocks are the control memory block and the status memory block. The control block i s used to configure the PICkit™ Serial Analyze r. The control block is divided into the following three sections:

• EXEC module configur ation

• Generic COMM module configuration

• Protocol specific communication configuration This third section will change depending on the protocol. The Status block keeps the

status of various flags and is similarly divided into three sections.

TABLE 9-2: CONTROL BLOCK

TAG Bytes Definition

0-7 EXEC section 8-15 Generic COMM se ction 16-23 Protocol specific communication section

9.4 EXEC

PICkit™ Serial Analyzer Firmware

TABLE 9-3: STATUS BLOCK

TAG Byte s Definition

0-3 EXEC section 4-11 Generic COMM section 12-19 Protocol specific communication section

The EXEC module will directly decode the data stream from the host. The list of different commands is shown in Table 9-4. Every data stream from the software to the PICkit™ Serial Analyzer begins with one of the following EXEC command T AG bytes.

TABLE 9-4: EXEC COMMAND (ECMD) TAG BYTES

TAG/ECMD LEN Name Description

0x00 1 END OF DATA Marks the end of valid data

0 TAG

0x01 1 COMMAND Executive command

0 TAG 1 Command byte (s ee

Table 9-5)

0x02 25 CONTROL_BLOCK_WRITE Write control block to PIC

0 TAG

1:24 Control block

0x03 N+2 CBUF1_WRITE Write data to circular buffer 1

0 TAG 1 Byte count (N)

2 : N+1 Data

0x04 N+2 CBUF2_WRITE Write data to circular buffer 2

0 TAG 1 Byte count (N)

2 : N+1 Data

0x05 N+2 CBUF3_WRITE Write data to circular buffer 3

0 TAG 1 Byte count (N)

2 : N+1 Data

0x06 2 LED1_CONFIG Configure LED 1

0 TAG 1 Configuration Byte

0x07 2 LED2_CONFIG Configure LED 2

0 TAG 1 Configuration byte

MCU

TAG byte 0x01 signifies that the following byte is one of the commands listed in Table 9-5.

PICkit™ Serial Analyzer User’s Guide

TABLE 9-5: TAG BYTE 0x01 COMMAND CODES

CMD Description

0x00 Master Reset: EXEC Reset, COMM Reset (idled) 0x01 COMM initialization: COMM is initialized as defined by CONTROL_BLOCK 0x02 Request EXEC_STATUS_PACKET (Ref. Table 9-6) 0x03 Save CO NTROL_BLOCK to EEPROM 0x04 Restore CONTROL_BLOCK from EEPROM 0x05 Flush CBUF2 0x06 COMM Reset: rest buffers, clear status block (COMM hardware is not re-initialized)

TABLE 9-6: EXEC STATUS PACKET

Byte LEN Type Description

0 1 2 0x88 PACKET ID = 0x01 2 4 3 0x81 FIRMWARE VERSION

5 29 25 0x82 CONTROL BLOCK 30 50 21 0x83 STATUS BLOCK 51 57 7 0x84 CBUF STATUS

T AG byte 0x02 writes the 24-byte CONTROL_BLOCK (the EXEC portion of the control block appears in Table 9-7).

TABLE 9-7: EXEC CONTROL BLOCK

Byte Bit Description

0 7:0 EXEC control bits

0 1 2 3 4 1 = Disable default behavior – LED2 5 1 = Disable default behavior – LED1 6 1 = Flush CBUF2 on count [e.g. CBUF2 >= N bytes then flush] 7 1 = Flush CBUF2 on time intervals

17:0

0 1 = Enable switch test 1n/a 2n/a 3n/a 4n/a 5n/a 6n/a 7n/a

27:0 3 7:0 CBUF2 flush count threshold [e.g., CBUF2 > N bytes then

flush]

4 7:0 CBUF2 flush interval [res: 409 μs, min: 409 μs, max: 104 μs] a

value of ‘0’ defaults to ‘1’, (i.e., the minimum) 57:0 67:0 77:0

PICkit™ Serial Analyzer Firmware

T AG bytes 0x03, 0x04 and 0x05 write data bytes to their respective script buffers. In the current ar ch it ec tur e, Sc ri pt Bu ffer 1 (CBUF1) is used to sto re co mmun i c at io n co mmands that will be fetched and executed by the COMM block. So, TAG byte 0x03 is used to delineate data that is to be sent to the script buffer including communication protocols to be sent to the unit under test. TAG bytes 0x04 and 0x05 are typically not used. TAG bytes 0x06 and 0x07 configure the LEDs as follows:

TABLE 9-8: LED CONFIGURATION

Description

Mode

M = CFG[7:6]

Set immediate 00 1 = On, 0 = Off N/A Blink once – On or Off 10 1 = On, 0 = Off T + 1 units Blink continuous 11 initial state: 1 = On, 0 = Off T + 1 units Reserved 01

Legend: Time “unit” = 50 ms

Note: Set LED to blink continuously, on/off time = 100 ms.

CFG = 0xC1 (M = b’11’, S = 0, T = 1)

EXEC data TAG bytes identify data streams sent from the EXEC block back to the host software.

State

S = CFG[5]

Time

T = CFG[4:0 ]

TABLE 9-9: EXEC TAG (EDATA) BYTES

TAG/EDATA LEN Name Description

0x80 1 END OF DATA Marks the end of valid data

0TAG

0x81 1 FIRMWARE_VERSION Firmware version

0TAG 1 Data: 20-byte STATUS_BLOCK 2 Date: major version

0x82 25 CONTROL_BLOCK_DATA Control block contents

0TAG

1:24 Data: CONTROL_BLOCK

0x83 21 STATUS_BLOCK_DATA Status block contents

0TAG

1:20 Data: min o r ver s i o n

0x84 7 CBUF_STATUS Status block contents

0TAG 1 Data: CBUF1: # bytes used 2 Data: CBUF1: # bytes unused 3 Data: CBUF2: # bytes used 4 Data: CBUF2: # bytes unused 5 Data: CBUF3: # bytes used 6 Data: CBUF3: # bytes unused

0x85 N+2 CBUF1_DATA Data from CBUF1

0TAG 1 Byte count

2 : N+1 Data: from CBUF1

0x86 N+2 CBUF2_DATA Data from CBUF2

0TAG 1 Byte count

2 : N+1 Data: from CBUF2

PICkit™ Serial Analyzer User’s Guide

TABLE 9-9: EXEC TAG (EDATA) BYTES (CONTINUED)

TAG/EDATA LEN Name Description

0x87 N+2 CBUF3_DATA Data from CBUF3

2 : N+1 Data: from CBUF3

0x88 2 P ACKET_ID Packet number

TA G byte 0x80 means the transaction is over. T AG byte 0x81 signifies that the following data is the firmware version. 0x82 signifies that the data following is the control block (CONTROL_BLOCK). 0x83 signifies that the data following data is the status block (STATUS_BLOCK). The EXEC portion of STATUS_BLOCK is shown in Table 9-10.

TABLE 9-10: EXEC STATUS BLOCK

Byte Bit Description

EXEC

0 7:0 EXEC status

0 1 CBUF1 overflow 2 CBUF2 overflow 3 CBUF3 overflow 4 Data error (e.g. illegal TAG, missing TAG-dependent data, etc.) 5 Restore control block failed – defaults used 6 7 Composite error

17:0 27:0 37:0

TAG byte 0x84 is the script buffer status which shows availability of memory in each buffer. T AG bytes 0x85, 0x86 and 0x87 identify data streams coming from RAM buffers CBUF1, CBUF2 and CBUF3, respectively. RAM buffer 2 (CBUF2) is used in this architecture to queue the data stream from the COMM module to be sent to the host software, thus TAG byte 0x86 identifies this stream.

TAG bytes 0x85 and 0x87 are typically unused.

0TAG 1 Configurati on byte

0TAG 1 Data: arbitrary packet ID#

9.5 COMM

The COMM module will decode T AG bytes from the data stream in the script buffer. The TAG bytes may represent commands to internally configure the PICkit™ Serial Analyzer and report status, or the TAG bytes may be protocol specific identification that needs to be translated into the device under test’s protocol and communicated to the device. The COMM module performs both of these functions. This section will describe the COMM TAGs common to all supported serial protocols. Table 9-11 describes the T AGs (CCMD) used in the data stream to the COMM controller. Table 9-12 describes T AGs (CDATA) used in the data stream from the COMM controller

PICkit™ Serial Analyzer Firmware

TABLE 9-11: COMM SCRIPT COMMAND TAG BYTES

TAG/CCMD LEN Name Description

0x00 – 0x0F 16 RESERVED Reserved

0x10 3 Wait-1 Wait for time interval

0TAG 1Time (LSB) 2Time (MSB)

[res: 409.6 ms, max: 26.843 sec]

0x12 2 LED1 Configure LED1

0TAG 1 LED Configuration byte

0x13 2 LED2 Configure LED2

0TAG 1 LED Configuration byte

0x15 3 TIMEOUT_AB0_SET Set time-out AB0

0TAG 1 Time-out value (LSB) 2 Time-out value (MSB)

[res: 409.5 ms, max: 26.843 sec]

0x16 1 TIMEOUT_AB0_KILL Kill/disable time-out AB0

0TAG

0x17 3 TIMEOUT_AB1_SET Set time-out AB1

0TAG 1 Time-out value (LSB) 2 Time-out value (MSB)

[res: 409.6 ms, max: 26.843 sec]

0x18 1 TIMEOUT_AB1_KILL Kill/disable timeout AB1

0TAG

0x19 1 MACRO_CLEAR Start macro definition

0TAG

0x1A N+2 MACR O_D AT A_A DD Add bytes to macro

0TAG 1 Byte count (N) 2Data

N+1 Data

0x1B 3 MACRO_RUN Run macro

0TAG 1 Loop count [0 = indefinitely] 2 Loop count [0 = indefinitely]

0x1C 1 END_OF_SCRIPT Mark end of script

0TAG

0x1D 1 MACRO_D AT A_S TART Mark start of “macro” data block

0TAG

0x1E 1 MACRO_DATA_END Mark end of “macro” data block

0TAG

0x1F 2 MARKER Script “marker”

0TAG 1 Marker

0x20 1 EVENT_TIMER_RESET Event timer Reset

0TAG

PICkit™ Serial Analyzer User’s Guide

TABLE 9-12: COMM SCRIPT DATA TAG BYTES

TAG/CDATA LEN Name Description

0x00 – 0x0F 16 RESERVED RESERVED

0x10 2 DATA_BYTE Data byte follows

0TAG 1 data

0x11 N+2 DATA_BYTES Data bytes follow

0TAG 1 Byte count (N) 2Data

N+1 Data

0x12 2 EVENT_MACRO_LOOP Macro loop count milestone message

0TAG 1 Loop number

0x13 3 EVENT_TIME Time marker for previous event

0TAG 1 Time LSB 2Time MSB

0x14 1 EVENT_TIME_ROLLOVER Event timer rollover

0TAG

0x15 3 EVENT_MACRO_DONE Macro loop complete

0TAG 1 Loop count (LSB) 2 Loop count (MSB)

0x16 1 EVENT_MACRO_ROLLOVER Macro loop count rollover (65536)

(useful w it h infinite lo op count)

0TAG

0x17 1 EVENT_MACRO_ABORT Macro execution was aborted by bit in command

block

0TAG

0x18 1 EVENT_TIMEOUT_AB0 Timer AB0 timeout

0TAG

0x19 1 EVENT_TIMEOUT_AB1 Timer AB1 timeout

0TAG

0x1A 2 EVENT_STATUS_ERR Status error

0TAG 1 STATUS_BLOCK[04]

0x1B 1 EV ENT_E ND_O F_SCRI PT “End-of-Script” TAG encountered

0TAG

0x1C 2 MARKER “Marker” tag encountered

0TAG 1MARKER

[res: 409 usec, max: 26.8 sec]

PICkit™ Serial Analyzer Firmware

TABLE 9-13: COMM SCRIPT CONTROL BLOCK

Byte Bit Description

COMM: GENERAL

8 7:0 COMM mode:

00: IDLE

01: I 02: SPI-M 04: USART-A 05: USART -SM

9 7:0 COMM control bits

0 1 1 1 = Enable event markers – time stamp 2n/a 3n/a 4 1 5 1 6 1 = VSRC: variable 7 1 = Abort macro execut ion

10 7:0 Bit flags

0 1 = Event marker enable: macro loop 1 1 = Event marker enable: macro loop 65536 2 1 = Event marker enable: macro loop done 3 1 = Event marker enable: time-out AB0 4 1 = Event marker enable: time-out AB1 5 1 = Event marker enable: status error (STATUS_BLOCK[04] ! = 0) 6 1 = (Unassigned) 7 1 = (Unassigned)

11 7:0 N/A 12 7:0 VSRC 8-bit setting 13 7:0 VSRC Fault Threshold 14 7:0 N/A 15 7:0 N/A

= Enable event markers – global

= Enable PULLUPS = VSRC: On

PICkit™ Serial Analyzer User’s Guide

TABLE 9-14: COMM SCRIPT STATUS BLOCK

Byte Bit Description

COMM: GENERAL

4 7:0 COMM status: error

0 Time-out AB0 1 Time-out AB1 2 COMM initialization error 3 VSRC fault 4 Data error (e.g., unrecognized TAG, missing data, etc.) 5 Output buffer overrun (CBUF 2) 6 Output buffer overrun (CBUF 3) 7 Compo site error

5 7:0 COMM status: informational

0 Controller busy 1 Executing MACRO 2 Executing MACRO – infinite loop 3Executing WAIT instruction 4 5 6 7 “End-of-Script” TAG encountered

6 7:0 COMM mode 7 7:0 VSRC Measurement (0-255) 87:0

97:0 10 7:0 11 7:0

9.6 I2CM COMMUNICATIONS

I2CM refers to the Master mode of the I2C protocol. See the I2C specificat ion fo r pr oto col details. In this mode, the PICkit™ Serial Analyzer will master the I not respond as a slave. The control block of memory dedicated to communication allows for setting of the bit rate and displaying event markers in the software windows.

TABLE 9-15: CONNECTOR PINOUT IN I

Pin Description

1— 2+V 3GND 4SDA 5SCL 6—

CM MODE

C bus only. It will

PICkit™ Serial Analyzer Firmware

TABLE 9-16: I2CM CONTROL BLOCK

Byte Bit Description

COMM: I

16 7:0 Bit flags

0 1 = event marker enable: Start bit 1 1 = event marker enable: Stop bit 2 1 = event marker enable: Restart bit 3 1 = event marker enable: ack tx 4 1 = event marker enable: nack tx 5 1 = event marker enable: ack rx 6 1 = event marker enable: nack rx 7 1 = event marker enable: write byte

17 7:0 Bit flags

0 1 = event marker enable: read byte 1 1 = event marker enable: transaction error 2 1 = event marker enable: status error (STATUS_BLOCK[12] != 0) 3 4 5 6 7

18 7:0 19 7:0 20 7:0 21 7:0 22 7:0 23 7:0 BIT RATE = (FOSC / (4 * (X + 1)) min: 0, max: 127

49 => 100k bps 127 => 39k bps

PICkit™ Serial Analyzer User’s Guide

TABLE 9-17: I2CM STATUS BLOCK

Byte Bit Description

COMM: I

12 7:0 Bit flags: error status

0 WCOL error 1 SSPOV error 2 3 4 5 6 7 Compo site error

13 7:0 Bit flags: info status

0 1 2 3 4 5 6 7

14 7:0 15 7:0 16 7:0 17 7:0 18 7:0 19 7:0 BIT RATE CODE currently in use

The I

CM T AG/CCMND bytes are used by the host (software) to describe an I2C transaction in ‘script’ form. The script is sent via USB to the script buffer (CBUF1) and interpreted by the COMM controller to execute the transaction on the I data stream contains I occurrence of each entity of the I

C read data as well as ‘event marker’ TAGs that mark the

C transaction (e.g., TAG: 0x81 indicates a “Start” bit).

C bus. The return

PICkit™ Serial Analyzer Firmware

TABLE 9-18: I2CM ‘CMD’ TAG BYTES

TAG/CCMD LEN Name Description

0x80 1 I

0x81 1 I

0x82 1 I

0x83 1 I

0x84 N+2 I

0x85 2 I

0x86 1 I

0x87 2 I

0x88 1 I

0x89 2 I

0x8A 1 I

An example of a data stream in the script buffer that would direct the COMM back to communicate in I

Under test is as follows:

0x81 I 0x84 I 0x02 Number of bytes 0xA8 I2C™ address for writing 0x01 I 0x83 I2CM_RESTART 0x84 I2CM_WRITE_BYTES 0x01 Number of bytes 0xA9 I 0x89 I2CM_READ_BYTES_NLB 0x01 Number of bytes 0x82 I

CM_INIT Ini tialize master

0TAG

CM_START Issue I2C™ Start

0TAG

CM_STOP Issue I2C™ Stop

0TAG

CM_RESTART Issue I2C™ Restart

0TAG

CM_WRITE_BYTES Write bytes

0TAG 1 byte count (N) 2 data byte

N+1 data byte

CM_READ_BYTES Read bytes – ACK all bytes

0TAG 1 byte count (N)

CM_READ_BLOCK Read block – ACK all bytes

0TAG

CM_BIT_RATE Set I2C™ bit rate

0TAG 1bit rate

CM_RESET Reset MSSP module

0TAG

CM_READ_BYTES_NLB Read bytes – NACK last byte

0TAG 1 byte count (N)

CM_READ_BLOCK_NLB Read block – NACK last byte

0TAG

C to the unit.

CM_START

CM_WRITE_BYTES

C™ command code

C™ address for reading

CM_STOP

PICkit™ Serial Analyzer User’s Guide

The script (above) is interpreted as follows. TAG 0x81 instructs the COMM module to generate an I following the start – 0xA8 and 0x01. The first byte is the I

C ‘Start’ bit on the I2C bus. TAG 0x84 indicates 2 bytes will be transmitted

C slave address (with write/read bit Reset) and a data/command byte of 0x01. The COMM module does not place any significance on the value of the data bytes but merely transmits them ‘blindly’ – as instructed. The next TAG 0x83 instructs the COMM module to issue a Restart bit on the I be transmitted. Here again, the COMM module does not interpret the data – the I

C bus. TAG and data bytes - 0x84, 0x01, 0xA9 – will cause 1 byte (0xA9) to

C slave will interpret 0xA9 as an address with write/read bit set. TAG 0x89 followed by data byte 0x01 instructs the COMM module to attempt to read 1 byte from the slave then issue a NACK on the bus. Finally, an I The resulting I

C transaction looks like this on the bus:

C ‘Stop’ bit is issued according to tag 0x82.

[START][A8][01][RESTART][A9][data byte received][STOP] As the script is executed, a data stream will be developed using TAGs/CDA TA

(described in Table 9-19) and returned to the host software via CBUF2.

TABLE 9-19: I

TAG/

CDATA

0x80 1 I

0x81 1 I

0x82 1 I

0x83 1 I

0x84 1 I

0x85 1 I

0x86 1 I

0x87 2 I

0x88 2 I

0x89 2 I

0x8A 2 I

CM ‘DATA’ TAG BYTES

LEN Name Description

CM_EVENT_START_TX Start bit event

0 CDATA-TAG

CM_EVENT_STOP_TX Stop bit event

0 CDATA-TAG

CM_EVENT_RESTART_TX Restart bit event

0 CDATA-TAG

CM_EVENT_ACK_TX ACK bit event

0 CDATA-TAG

CM_EVENT_NACK_TX NACK bit event

0 CDATA-TAG

CM_EVENT_ACK_RX ACK bit event

0 CDATA-TAG

CM_EVENT_NACK_RX NACK bit event

0 CDATA-TAG

CM_EVENT_BYTE_TX BYTE transmit

0 CDATA-TAG 1data

CM_EVENT_BYTE_RX BYTE transmit

0 CDATA-TAG 1data

CM_EVENT_XACT_ERR transaction error

0 CDATA-TAG 1 error byte

CM_EVENT_STATUS_ERR status error

0 CDATA-TAG 1 error byte

9.7 SPI COMMUNICATIONS

SPI is a 4-wire serial protocol that uses data in, data out, clock and Chip Select pins. It is a very basic protocol using a clock edge to capture data. The CONTROL_BLOCK is used to enable SPI event markers, set the bit rate and configure transaction/protocol options.

TABLE 9-20: CONNECTOR PINOUT IN SPI MODE

Pin Description

1CS 2+V 3G 4SDI 5SCK 6SDO

TABLE 9-21: SPI CONTROL BLOCK

Byte Bit Description

PICkit™ Serial Analyzer Firmware

COMM: SPI

16 7:0 Bit flags

0 1 = Event marker enable: read byte 1 1 = Event marker enable: write byte 2 1 = Event marker enable: status error 3 1 = 4 1 = 5 1 = 6 1 = 7 1 =

17 7:0 SPI Configuration bits

0 1 = SMP (sample phase) 1 1 = CKE (clock edge select) 2 1 = CKP (clock polarity) 3 1 = DAOD (disable auto output disable on data input) 4 1 = SS 5 1 = 6 1 = SLAVE 7 1 = MASTER

18 7:0 19 7:0 20 7:0 21 7:0 22 7:0 BIT RATE: Pre-scale code 23 7:0 BIT RATE: Scale code

PICkit™ Serial Analyzer User’s Guide

TABLE 9-22: BIT RATE CODES

FOSC

20 MHz 0x00 8 0x00 182.500MHz 20 MHz 0x00 8 0xFF 256 2048 9.766 kHz 20 MHz 0x01 32 0x00 1320.625MHz 20 MHz 0x01 32 0xFF 256 8192 2.441 kHz 20 MHz 0x02 128 0x00 1 128 0.156 MHz 20 MHz 0x02 128 0xFF 256 32768 0.610 kHz

Pre-Scale

Code

TABLE 9-23: SPI STATUS BLOCK

Byte Bit Description

12 7:0 Bit flags: error status

13 7:0 SPI Configuration bits

14 7:0 15 7:0 16 7:0 17 7:0 18 7:0 BIT RATE: Pre-scale ( 19 7:0 BIT RATE: Scaling (ref: section: x.x.x)

Pre-Scale

Value

0 WCOL error 1 SSPOV error 2 3 4 5 6 7 Composite error

0 1 = SMP (sample phase) 1 1 = CKE (clock edge select) 2 1 = CKP (clock polarity) 3 1 = AOD (auto output disable on data input) 4 1 = SS 5 1 = 6 1 = SLAVE 7 1 = MASTER

Scale Code

COMM: SPI

ref: section: x.x.x)

Scale Value

Total Scale

Value

Bit Rate

PICkit™ Serial Analyzer Firmware

TABLE 9-24: SPI ‘CMD’ TAG BYTES

TAG/CCMD LEN Name Description

0x80 1 SPI_MODE_IDLE Set to IDLE

0 TAG

0x81 2 SPI_INIT_MODE Initialize SPS controller as per DATA

0 TAG 1 Configuration bits

(ref section x.x.x)

0x83 3 SPI_BITRATE Set bit rate

0 TAG 1 scaler

2 pre-scaler

(ref section x.x.x)

0x84 2 SPI_DATAIO_IN Input data

0 TAG 1 byte count (N)

0x85 N+2 SPI_DATAIO_OUT Output data

0 TAG 1 byte count (N)

2 data

N+1 data

0x86 N+2 SPI_DATAIO_INOUT Output data

0 TAG 1 byte count (N)

2 data

N+1 data

0x87 1 SPI_SDO_IN Set SDO pin to INPUT (tri-sta te)

0 TAG

0x88 1 SPI_SDO_OUT Set SDO pin to OUTPUT

0 TAG

0x89 1 SPI_RESET Reset SPI controller to IDLE

0 TAG

0x8A 1 SPI_INIT Initialize SPI controller per

CONTROL BLOCK

0 TAG

0x8B 1 SPI_CS_ON Assert CS

0x8C 1 SPI_CS_OFF De-assert CS*

* (low true)

0 TAG

TABLE 9-25: SPI ‘DATA’ TAG BYTES

TAG/CDATA LEN Name Description

0x80 2 SPI_EVENT_BYTE_TX BYTE transmit

0 TAG 1 data

0x81 2 SPI_EVENT_BYTE_RX BYTE transmit

0 TAG 1 data

0x82 2 SPI_EVENT_STATUS_ERR Status error

0 TAG 1 error byte

PICkit™ Serial Analyzer User’s Guide

9.8 USART COMMUNICATIONS

Universal Synchronous Asynchronous Receive Transmit (USART) protocol is a standard 2-wire serial communication. In Asynchronous mode, there is a transmit line and a receive line. In Synchronous mode, the transmit line becomes the clock line and the receive line becomes the bidirectional data line. In Asynchronous mode, 8 bits are framed by a Start and Stop bit. A ninth bit can be included to use as a parity bit.

To configure the protocol, set the clock polarity to rising edge or falling edge if using Synchronous mode. Enable or disable 9-bit words and enable or disable the asynchronous receiving ability of the PICkit™ Serial Analyzer. Select the baud rate according to the BRG table.

TABLE 9-26: CONNECTOR PINOUT IN USART ASYNCHRONOUS MODE

Pin Description

1TX 2+V 3G 4— 5— 6RX

TABLE 9-27: CONNECTOR PINOUT IN USART SYNCHRONOUS MODE

Pin Description

1Clock 2+V 3G 4— 5— 6Data

PICkit™ Serial Analyzer Firmware

TABLE 9-28: USART CONTROL BLOCK

Byte Bit Description

COMM: USART

16 7:0 17 7:0

0 Clock polarity (default) 1 = high-low at beginning of bit cell, 0 =

low-high 1 1 = 9-bit word length (default) 2 1 = Async receive enable 3 1 = 4 1 = 5 1 = 6 1 = 7 1 =

18 7:0

0 1 = Event marker enable: read byte 1 1 = Event marker enable: write byte 2 1 = Event marker enable: status error 3 1 = Event marker enable: break tx 4 1 = 5 1 = 6 1 = 7 1 =

19 7:0 20 7:0 21 7:0 22 7:0 BRG (BAUD) default (LSB) 23 7:0 BRG (BAUD) default (MSB)

TABLE 9-29: BRG BAUD RATE TABLE

BAUD = F

BAUD BRG ACTUAL ERR

300 16666 300.0 0.00% 1200 4166 1199.9 -0.01% 4800 1041 4798.5 -0.03% 9600 520 9596.9 -0.03%

19200 259 19230.8 0.16% 28800 173 28735.6 -0.22% 57600 86 57471.3 -0.22%

115200 42 116279.1 0.94%

OSC/(4*(BRG + 1))

PICkit™ Serial Analyzer User’s Guide

TABLE 9-30: USART STATUS BLOCK

Byte Bit Description

COMM: USART

12 7:0 Bit flags: error status

0 FERR – framing error 1 OERR – overrun error 2 INIT error (bad “mode”) 3 4 5 6 7 Compo site error

13 7:0 14 7:0

0 Clock polarity (default) 1 = high-low at beginning of bit cell, 0 =

low-high 1 1 = 9-bit word length (default) 2 1 = Async receive enable 3 1 = 4 1 = 5 1 = 6 1 = 7 1 = 7 1 =

15 7:0 16 7:0 17 7:0 18 7:0 BRG (BAUD) default (LSB) 19 7:0 BRG (BAUD) default (MSB)

PICkit™ Serial Analyzer Firmware

TABLE 9-31: USART ‘CMD’ TAG BYTES

TAG/

CCMD

0x80 1 USART_INIT Initialize USART controller

0x81 1 USART_RESET Reset USART controller

0x82 N+2 USART_DATA_XMT Transmit data

0x83 2 USART _DATA_ARCV Receive data

0x84 1 USART_DATA_SRCV_ENABLE Enable receive data monitor

0x85 1 USART_DATA_SRCV_DISABLE Disable receive data monitor

0x86 1 USART_BREAK_XMT send BREAK

0x87 2 USART_BREAK_DATA_XMT send BREAK then DATA byte

0x88 3 USART_BAUD set BAUD rate

0x89 1 USART_SCKP_SET set “CLOCK POLARITY” bit

0x8A 1 USART_SCKP_RST reset “CLOCK POLARITY” bit

0x8B 1 USART_9BIT_SET set 9-bit Data mode

0x8C 1 USART_9BIT_RST reset 9-bit Data mode (sets 8-bit)

LEN Name Description

0 TAG

0 TAG 1 Byte count (N)

2Data

N+1 Data

0 TAG 1 Byte count (N)

0 TAG

0 TAG 1 DATA byte (TYP: 0x55)

0 TAG 1 BAUD value (LSB)

2 BAUD value (MSB)

(Reference Table 9-29)

0 TAG

PICkit™ Serial Analyzer User’s Guide

TABLE 9-32: USART ‘DATA’ TAG BYTES

TAG/

CDATA

0x80 2 USART_EVENT_BYTE_TX BYTE transmit

0x81 2 USART_EVENT_BYTE_RX BYTE received

0x82 2 USART_EVENT_STATUS_ERR Status error

0x83 1 USART_EVENT_BREAK_TX BREAK transmitted

LEN Name Description

0 TAG 1 data

0 TAG 1 error byte

0 TAG

Microchip Technology PICkit™ Serial Analyzer User’s Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

Chapter 1. PICkit™ Serial Analyzer Overview

1.1 INTRODUCTION

1.2 HIGHLIGHTS

1.3 PICkit™ SERIAL ANALYZER CONTENTS

1.4 PICkit™ SERIAL ANALYZER DEVELOPMENT SYSTEM

FIGURE 1-1: PICkit™ SERIAL ANALYZER DEVELOPMENT SYSTEM

1.5 PICkit™ SERIAL ANALYZER HARDWARE

FIGURE 1-2: PICkit™ SERIAL ANALYZER

FIGURE 1-3: PICkit™ SERIAL ANALYZER PIN ASSIGNMENTS

1.6 PICkit™ SERIAL ANALYZER SOFTWARE

FIGURE 1-4: FIRMWARE DOWNLOAD WINDOW

2.1 INTRODUCTION

2.2 HIGHLIGHTS

Chapter 2. Getting Started

2.3 INSTALLING THE PICkit™ SERIAL ANALYZER SOFTWARE

2.4 CONNECTING THE PICkit™ SERIAL ANALYZER TO THE PC

2.5 CONNECTING THE PICkit™ SERIAL ANALYZER TO THE 28-PIN DEMO BOARD

2.6 STARTING THE PICkit™ SERIAL ANALYZER PROGRAM

FIGURE 2-2: PICkit™ SERIAL ANALYZER MAIN WINDOW

2.7 RUNNING THE 28-PIN DEMO I2C™ DEMONSTRATION PROGRAM

FIGURE 2-3: 28-PIN DEMO I2C™ – RTC

FIGURE 2-4: 28-PIN DEMO I2C™ – EEPROM

2.8 I2C™ COMMUNICATIONS – BASIC OPERATIONS

FIGURE 2-7: RTC TRANSACTIONS DEMO

2.9 28-PIN DEMO I2C™ SOURCE CODE AND FIRMWARE

Chapter 3. PICkit™ Serial Analyzer PC Program

3.1 INTRODUCTION

3.2 HIGHLIGHTS

3.3 INSTALLING THE PICkit™ SERIAL ANALYZER SOFTWARE

3.4 STARTING THE PROGRAM

FIGURE 3-1: PICkit™ SERIAL ANALYZER MAIN WINDOW

3.5 CONFIGURATION WIZARD

FIGURE 3-2: CONFIGURATION WIZARD – WELCOME

FIGURE 3-3: CONFIGURATION WIZARD – PAGE 1 OF 4

FIGURE 3-4: CONFIGURATION WIZARD – PAGE 2 OF 4

FIGURE 3-5: CONFIGURATION WIZARD – PAGE 3 OF 4

FIGURE 3-6: CONFIGURATION WIZARD – PAGE 4 OF 4

FIGURE 3-7: CONFIGURATION WIZARD – Y OU’RE DONE!

3.6 MAIN WINDOW

FIGURE 3-8: MENU BAR

FIGURE 3-9: TOOL BAR

FIGURE 3-10: STATUS COLUMN (BASIC VIEW)

FIGURE 3-11: STATUS COLUMN (ADVANCED VIEW)

FIGURE 3-12: TRANSACTIONS WINDOW

3.7 SERIAL COMMUNICATIONS MODES

Chapter 4. I2C™ Master Communications

4.1 INTRODUCTION

4.2 HIGHLIGHTS

4.3 PICkit SERIAL PIN ASSIGNMENTS

4.4 SELECTING COMMUNICATIONS MODE

4.5 CONFIGURING I2C COMMUNICATIONS MODE

4.6 COMMUNICATIONS: BASIC OPERATIONS

FIGURE 4-3: I2C™ BASIC OPERATIONS

4.7 SCRIPT BUILDER

FIGURE 4-5: I2C™ SCRIPT BUILDER – SCRIPT COMMANDS

FIGURE 4-7: I2C™ SCRIPT BUILDER – SCRIPT DETAIL

4.8 SCRIPT EXECUTE

Chapter 5. SPI Master Communications

5.1 INTRODUCTION

5.2 HIGHLIGHTS

5.3 PICkit™ SERIAL ANALYZER PIN ASSIGNMENTS

5.4 SELECTING COMMUNICATIONS MODE

5.5 CONFIGURATING SPI COMMUNICATIONS MODE

FIGURE 5-1: SPI CONFIGURE COMMUNICATIONS MODE – BASIC VIEW

5.6 COMMUNICATIONS: BASIC OPERATIONS

FIGURE 5-3: SPI BASIC OPERATION S

FIGURE 5-4: SPI BASIC OPERATION S

FIGURE 5-5: SEEPROM EXAMPLE – WREN COMMAND

FIGURE 5-6: SEEPROM EXAMPLE – WRITE BYTES

FIGURE 5-7: SEEPROM EXAMPLE – READ BYTES

5.7 SCRIPT BUILDER

FIGURE 5-8: SPI SCRIPT BUILDER

FIGURE 5-9: SPI SCRIPT BUILDER – SCRIPT COMMANDS

FIGURE 5-10: SPI SCRIPT BUILDER – EXAMPLE SCRIPTS

FIGURE 5-12: SPI SCRIPT BUILDER – USER SCRIPTS