Note the following details of the code protection feature on Microchip devices:
•Microchip products meet the specification contained in their particular Microchip Data Sheet.
•Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip's Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•Microchip is willing to work with the customer who is concerned about the integrity of their code.
•Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such
acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is intended through suggestion only
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications. No
representation or warranty is given and no liability is assumed
by Microchip Technology Incorporated with respect to the
accuracy or use of such information, or infringement of patents
or other intellectual property rights arising from such use or
otherwise. Use of Microchip’s products as critical components in
life support systems is not authorized except with express
written approval by Microchip. No licenses are conveyed,
implicitly or otherwise, under any intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, K
EELOQ,
MPLAB, PIC, PICmicro, PICSTART, PRO MATE and
PowerSmart are registered trademarks of Microchip
Technology Incorporated in the U.S.A. and other countries.
FilterLab, microID, MXDEV, MXLAB, PICMASTER, SEEVAL
and The Embedded Control Solutions Company are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
Accuron, Application Maestro, dsPIC, dsPICDEM,
dsPICDEM.net, ECONOMONITOR, FanSense, FlexROM,
fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC,
microPort, Migratable Memory, MPASM, MPLIB, MPLINK,
MPSIM, PICC, PICkit, PICDEM, PICDEM.net, PowerCal,
PowerInfo, PowerMate, PowerTool, rfLAB, rfPIC, Select Mode,
SmartSensor, SmartShunt, SmartTel and Total Endurance are
trademarks of Microchip Technology Incorporated in the U.S.A.
and other countries.
Serialized Quick Turn Programming (SQTP) is a service mark of
Microchip Technology Incorporated in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
Microchip received QS-9000 quality system
certification for its worldwide headquarters,
design and wafer fabrication facilities in
Chandler and Tempe, Arizona in July 1999.
The Company’s quality system processes and
procedures are QS-9000 compliant for its
PICmicro
devices, Serial EEPROMs and microperipheral
products. In addition, Microchip’s quality
system for the design and manufacture of
development systems is ISO 9001 certified.
This chapter contains general information about this user’s guide and customer support
that will be useful prior to using the rfPIC™ Development Kit 1.
Items discussed in this Preface are:
• About this Guide
• Warranty Registration
• Recommended Reading
• Troubleshooting
• Microchip On-Line Support
• Customer Change Notification Service
• Customer Support
ABOUT THIS GUIDE
This document describes how to use the rfPIC Development Kit 1. The manual layout
is as follows:
• Chapter 1: Getting Started – Step by step instructions on how to use your rfPIC
Development Kit 1.
• Chapter2: Demonstration Programs – Programs to familiarize the developer with
the rfPIC and rfRXD products and provide a starting point for future development.
Italic charactersA variable argument; it can be either a
Interface (Arial font):
Underlined, italic text
with right arrow
Bold charactersA window or dialog button to clickOK, Cancel
Characters in angle
brackets < >
Documents (Arial font):
Italic charactersReferenced books
Choice of mutually exclusive
arguments; An OR selection
Type of data
additional text that is not relevant to
the example
hexadecimal digit
type of data (in lower case characters)
or a specific example (in upper case
characters).
A menu selection from the menu barFile > Save
A key on the keyboard<Tab>, <Ctrl-C>
#define START
c:\autoexec.bat
errorlevel {0|1}
"filename"
list
"list_option...,
[
"list_option"]
0xFFFF, 0x007A
char isascii (char,
ch);
®
MPLAB
IDE User’s Guide
Documentation Updates
All documentation becomes dated, and this user’s guide is no exception. Since the
rfPIC™ Development Kit 1 User’s Guide and other Microchip tools are constantly
evolving to meet customer needs, some rfPIC Development Kit 1 actual dialogs and/or
tool descriptions may differ from those in this document. Please refer to our web site to
obtain the latest documentation available.
Documentation Numbering Conventions
Documents are numbered with a “DS” number. The number is located on the bottom of
each page, in front of the page number. The numbering convention for the DS Number
is: DSXXXXXA,
Please complete the enclosed Warranty Registration Card and mail it promptly.
Sending in your Warranty Registration Card entitles you to receive new product
updates. Interim software releases are available at the Microchip web site.
RECOMMENDED READING
Other useful documents are listed below:
rfPIC12F675K/675F/675H Data Sheet (DS70091)
Consult this document for information regarding the rfPIC12F675 20-pin FLASH-based
8-bit CMOS microcontroller with UHF ASK/FSK transmitter device specifications.
rfRXD0420/0920 Data Sheet (DS70090)
Consult this document for information regarding the rfRXD0420 UHF ASK/FSK/FM
receiver device specifications.
PIC12F629/675 Data Sheet (DS41190)
Consult this document for information regarding the PIC12F629/675 8-pin
FLASH-based 8-bit CMOS microcontroller device specifications.
PIC16F630/676 Data Sheet (DS40039)
Consult this document for information regarding the PIC16F630/676 14-pin
FLASH-based 8-bit CMOS microcontroller device specifications.
Consult this document for information regarding the PICkit 1 FLASH Starter Kit.
MPLAB
Consult this document for more information pertaining to the installation and features
of the MPLAB Integrated Development Environment (IDE) Software.
To obtain these documents, contact the nearest Microchip sales location (see back
page). These documents are also available on the Microchip web site at:
www.microchip.com.
Application Notes
There are several application notes for the rfPIC products available on the rfPIC™
Development Kit CD-ROM.
Microsoft
This manual assumes that users are familiar with the Microsoft Windows operating
system. Many excellent references exist for this software program, and should be
consulted for general operation of Windows.
®
IDE User’s Guide (DS51025)
®
Windows® Manuals
Preface
TROUBLESHOOTING
See Chapter 5. "Troubleshooting" for information on common problems.
THE MICROCHIP INTERNET WEB SITE
Microchip provides easy access to our documentation and on-line support through our
World Wide Web Site at www.microchip.com. You can download files from the web site
or from our FTP site at ftp://ftp.microchip.com
Users of Microchip products can receive assistance through several channels:
• Distributor or Representative
• Local Sales Office
• Field Application Engineer (FAE)
• Corporate Applications Engineer (CAE)
• Hot line
Customers should call their distributor, representative or field application engineer
(FAE) for support. Local sales offices are also available to help customers. See the
back cover for a listing of sales offices and locations.
Corporate Applications Engineers (CAEs) may be contacted at (480) 792-7627.
In addition, there is a Systems Information and Upgrade Line. This line provides system
users a listing of the latest versions of all of Microchip's development systems software
products. Plus, this line provides information on how customers can receive any currently available upgrade kits.
The Hot Line Numbers are:
• 1-800-755-2345 for U.S. and most of Canada, and
• 1-480-792-7302 for the rest of the world
CUSTOMER CHANGE NOTIFICATION SERVICE
Microchip started the customer notification service to help customers stay current on
Microchip products with the least amount of effort. Once you subscribe, you will receive
E-mail notification whenever we change, update, revise or have errata related to your
specified product family or development tool of interest.
Go to the Microchip web site (www.microchip.com) and click on Customer Change
Notification. Follow the instructions to register.
The Development Systems product group categories are:
• Compilers
• Emulators
• In-Circuit Debuggers
• MPLAB
• Programmers
Here is a description of these categories:
Compilers – The latest information on Microchip C compilers and other language
tools. These include the MPLAB
MPASM
and MPLIB
Emulators – The latest information on Microchip in-circuit emulators. This includes the
MPLAB
In-Circuit Debuggers – The latest information on Microchip in-circuit debuggers.
These include the MPLAB
MPLAB – The latest information on Microchip MPLAB
Development Environment for development systems tools. This list is focused on the
MPLAB
and debugging features.
Programmers – The latest information on Microchip device programmers. These
include the PRO MATE
programmer.
®
IDE
®
™
and MPLAB ASM30 assemblers; MPLINK™ and MPLAB® LINK30 linkers;
™
and MPLAB® LIB30 librarians.
®
ICE 2000.
®
®
IDE, MPASM™ simulator, MPLAB IDE Project Manager and general editing
®
II device programmer and PICSTART® Plus development
The rfPIC Development Kit 1 is a demonstration and development kit for the
rfPIC12F675K and rfPIC12F675F PICmicro
transmitters and rfRXD0420 UHF ASK/FSK/FM receiver. The transmitter and receiver
modules are designed to plug into the PICkit™ 1 FLASH Starter Kit expansion header
J3 for a low-cost development system.
1.2HIGHLIGHTS
This chapter discusses:
• rfPIC Development Kit 1 Contents
• Getting Started with the rfPIC Development Kit 1
• Demonstration Programs and HEX Files
1.3rfPIC DEVELOPMENT KIT 1 CONTENTS
The rfPIC Development Kit 1 contains the following items:
1.4GETTING STARTED WITH THE rfPIC DEVELOPMENT KIT 1
The transmitter modules come pre-programmed with a transmitter demonstration. The
enclosed PIC16F676 is programmed with a receiver demonstration program. Together
they demonstrate an on-off command and control application.
The PICkit
platform for the transmitter and receiver modules.
To see your rfPIC Development Kit 1 in action, perform the following steps:
1 FLASH Starter Kit serves as a low-cost development and demonstration
1.4.1
Preparing the Receiver Module for Operation
Step 1:
Familiarize yourself with the PICkit 1 FLASH Starter Kit operation by reading the
PICkit™ 1 FLASH Starter Kit User’s Guide (DS40051) and performing some of the
tutorials. Familiarity with the PICkit Starter Kit will be assumed throughout this user’s
guide.
Step 2:
Remove power from the PICkit Starter Kit by disconnecting the USB cable.
Step 3:
Remove the PIC12F675 from the PICkit Starter Kit evaluation socket.
Step 4:
Insert the PIC16F676 into the PICkit Starter Kit evaluation socket. See Figure 1-1.
Step 5:
Insert a receiver module (315 or 433.92 MHz) into the PICkit Starter Kit expansion
header J3. Make certain that the receiver module is oriented correctly. See Figure 1-1.
Step 6:
Insert the wire antenna into the antenna connector on the receiver module. See
Figure 1-1. The wire antenna length is determined by the receive frequency. For the
corresponding frequency, insert the following wire antenna:
Step 7:
Power-on the PICkit Starter Kit by connecting the USB cable to a personal computer or
externally powered USB hub.
Note:There is no interaction between the receiver demonstration program in the
PIC16F676 and the personal computer.
The receiver module is ready for operation.
1.4.2
Preparing the Transmitter Module for Operation
Step 1:
Select the transmitter module that matches the receive frequency of the receiver
module installed in the PICkit Starter Kit.
Step 2:
Power-on the transmitter module by positioning the shunt jumper to the batt position on
P1 (between center pin and batt pin). See Figure 1-2.
The transmitter module is ready for operation.
FIGURE 1-2:rfPIC TRANSMITTER DEMONSTRATION
Jumper
rfPIC12F675
P1
PICkit™ Batt
GP0 GP1
Pwr Sel P1
GP3 GP4
rfPIC™ Transmitter Module
1.4.3
Demonstration Operation
The demonstration program is a simple on-off command and control application. Pressing push button GP3 (SW2) on the transmitter module lights LED D0 on the PICkit
Starter Kit. Pressing push button GP4 (SW1) lights LED D1.
1.5DEMONSTRATION PROGRAMS AND HEX FILES
Additional demonstration programs are provided on the rfPIC™ Development Kit 1
CD-ROM. Chapter 2 provides an explanation of each program. HEX files and program
source code are provided. The HEX files can be programmed into the rfPIC transmitter
and receiver modules using the PICkit 1 FLASH Starter kit. The source code can be
modified and compiled using the MPLAB
software and the resulting HEX files programmed in the same manner.
The demonstration programs provided on the rfPIC Development Kit 1 CD-ROM give
examples of wireless applications. The programs familiarize the developer with the
rfPIC and rfRXD products and provide a starting point for future development.
2.2HIGHLIGHTS
The following demonstration programs are discussed in this chapter:
xmit_demo
rcvr_demo
rcvr_analog_display
xmit_test
tuning
Presentation Pal
presentation helper
Programming Templates
provided to assist the programmer in getting started with new projects
rfPIC™ Development Kit 1
User’s Guide
– a transmitter command, control and analog application demonstration
– a receiver command and control application demonstration
– a receiver analog demonstration
– a transmitter test program used for pre-compliance testing and antenna
– programs to turn your rfPIC Development Kit 1 into a wireless
– a set of thoroughly commented programming templates
2.3ABOUT THE DEMONSTRATION PROGRAMS
The demonstration programs are provided in *.hex format so that the user can
immediately program the device and begin testing. They are also available in *.asm
format so that the user can study the program source code and comments and as a
starting point for future development.
The transmitter module demonstration programs are programmed into the transmitter
module by following the steps in Chapter 4 of this User’s Guide. The receiver module
demonstration programs are programmed into the PIC16F676 by following the steps
outlined in the PICkit™ 1 FLASH Starter Kit User’s Guide.
XMIT-DEMO is the default program that is preprogrammed into the transmitter module. It
is used with the receiver module programs rcvr_demo and rcvr_analog_display.
This program demonstrates simple command, control and analog application demonstrations. To see each demonstration, the user must load the appropriate receiver code
examples:
rcvr_demo.asm and rcvr_demo.hex
When a push button on the transmitter module is depressed, the corresponding LED is
lit on the PICkit
lights LED D0 on the PICkit 1 Starter Kit. Pressing push button GP4 lights LED D1.
rcvr_analog_display.asm and rcvr_analog_display.hex
Pressing transmitter module push button GP3 lights LEDs D0-D7 on the PICkit
Kit with the upper 8-bit value read from the transmitter module 10-bit A/D channel 0
connected to potentiometer GP0. Pressing push button GP4 lights LEDs D0-D7 with
the upper 8-bit value read from A/D channel 1 connected to potentiometer GP1.
The protocol is a simplified K
products. This receive code was adapted from Microchip Technology application note
AN740.
The 10-bit analog value is placed into the 16-bit counter field of the simplified K
protocol.
This program demonstrates a simple command and control application. When a push
button on the transmitter module is depressed, the corresponding LED is lit on the
PICkit 1 FLASH Starter Kit.
Pressing transmitter module push button GP3 lights LED D0 on the PICkit 1. Pressing
push button GP4 lights LED D1.
The protocol is a simplified K
products. This receive code was adapted from Microchip Technology application note
AN740.
2.6RCVR_ANALOG_DISPLAY
This program demonstrates a simple analog display application. When a push button
on the transmitter module is depressed, the corresponding LED is lit on the PICkit
FLASH Starter Kit.
Pressing transmitter module push button GP3 lights LEDs D0-D7 on the PICkit Starter
Kit with the upper 8-bit value read from the transmitter module 10-bit A/D channel 0
connected to potentiometer GP0. Pressing push button GP4 lights LEDs D0-D7 with
the upper 8-bit value read from A/D channel 1 connected to potentiometer GP1.
The protocol is a simplified K
products. This receive code was adapted from Microchip Technology application note
AN740.
The 10-bit analog value is placed into the 16-bit counter field of the simplified K
protocol.
EELOQ protocol compatible with the HCS101 fixed code
1
EELOQ protocol compatible with the HCS101 fixed code
This program implements two tests that can be used to verify RF performance of the rfPIC
Development Kit transmitter modules using a spectrum analyzer and calibrated antenna.
The tests start when the indicated push button is pressed and stop when the push button
is released. The processor sleeps between tests to conserve battery power.
Demonstration Programs
2.7.1
Press push button GP3 (SW2). This test generates a constant unmodulated output for
measuring peak output power. This test can be used for regulatory pre-compliance
testing and antenna tuning.
2.7.2
Set potentiometer GP0 in one of four quarter positions to choose maximum, high,
medium, or low speed signal rate. Then press GP4 (SW1) and fine adjust potentiometer GP1 for the desired signal rate. The signal is a square wave and does not exactly
match the PWM or Manchester spectrums, but is quite useful to determine system
performance. Table 2-1 demonstrates the approximate signal rates. Note that
increasing the analog voltage decreases the signal rate and that the NRZ bps is double
the modulation frequency.
The Presentation Pal application turns your rfPIC Development Kit 1 into a wireless
slide show presentation helper. By pressing the push-buttons on the transmitter
module, the commands are converted to page-up and page-down keyboard
commands for a personal computer. There are two programs required for this
application.
2.8.1
Step 1:
The first step in converting your rfPIC Development Kit 1 is to program a blank
PIC16C745 8-bit CMOS microcontroller with USB (not included with the rfPIC
Development Kit) with pres_pal.hex. The PIC16C745 is a one time programmable
(OTP) microcontroller and can be programmed on a PICSTART
II programmer.
Step 2:
Remove the PICkit 1 FLASH Kit programmed PIC16C745 from socket U1. Insert the
PIC16C745 programmed with pres_pal.hex into socket U1.
Remove the PIC12F675 microcontroller from the evaluation socket. Insert a wire
jumper between pins 9 and 13.
Step 4:
When the PICkit Starter Kit is plugged into the personal computer USB jack, the
program will enumerate as a keyboard.
Button presses on the transmitter module are interpreted as page-down, page-up and
Alt-Tab keyboard commands. Page-down advances the slide. Page-up goes
backwards in the slide presentation. When both buttons are pressed, Alt-Tab alternates
between active programs.
2.8.2
This program sends button press commands to the receiver. The button press
commands are interpreted and sent to the personal computer as page-down and
page-up commands to advance or retreat the slide presentation running on the
computer.
This program is a slightly modified version of xmit_demo.asm. This program sends a
different count value for each push button press. This allows the receiver to delay
advancing the slide if the push button is pressed for an extended period of time. The
receiver will delay advancing a few seconds if the push button is continuously pressed.
This is similar to the key press auto-repeat feature of many personal computer
keyboards.
Transmitter Firmware - prespal_xmit.hex
2.9PROGRAMMING TEMPLATES
Thoroughly commented templates are provided to assist the programmer in getting
started with new projects. Two templates are provided:
PIC12F629-675 Assembly Language Programming Template.asm
Use this template to program the PIC12F629 or PIC12F675 8-pin FLASH PICmicro
MCU or the rfPIC12F675K/675F/675H PICmicro MCU with UHF ASK/FSK transmitter
devices.
PIC16F630-676 Assembly Language Programming Template.asm
Use this template to program the PIC16F630 or PIC16F676 14-pin FLASH PICmicro
microcontroller.
The rfRXD0420 Receiver Module (see Figure 3-1) is a low cost, high performance UHF
short-range radio ASK receiver design using the Microchip Technology rfRXD0420.
The module design is suitable for:
• Wireless remote command and control
• Remote Keyless Entry (RKE)
• Security systems
• Low power telemetry applications
The specifics of the receiver module design are:
• Single channel, fixed frequency at 315 MHz and 433.92 MHz
• ASK modulation
• Signal rate: 4800 baud
Schematics, PCB layout and Bill-of-Materials (BOM) are provided in the following
sections. Gerber files are available on the rfPIC™ Development Kit 1 CD-ROM.
The receiver module can be purchased separately or in packs of 5. See Table 3-1
The rfRXD0420 is a stand-alone receiver module that can be used in a variety of ways.
• It can be plugged into the PICkit 1 FLASH Starter Kit expansion header J3 for
demonstration and development.
• The receiver module can be installed in any project for proof-of-concept, demonstration, or
development purposes. Once project proof-of-concept and demonstration have been
proven, the designer can use the available Gerber files or complete a design of their own.
A detailed description of the rfRXD0420 UHF ASK/FSK/FM receiver is provided in the
data sheet, DS70090.
A detailed description of the rfRXD0420 receiver module design is provided in application
note, AN860.
FIGURE 3-1:rfRXD0420 RECEIVER MODULE
Table 3-2 lists the pinout for the rfRXD0420 receiver Module.
TABLE 3-2:rfRXD0420 RECEIVER MODULE PINOUT
PinDescription
1-10No Connection
11Receive Data In
12No Connection
13Power: 2.5-5.5 VDC
14Ground
ANTAntenna Connection
The antenna connection is a 0.055 inch pin receptical. A simple small diameter wire
(AWG 24) antenna can be constructed and inserted into the receptical. The length of
the antenna wire depends on the frequency.
λ (meters) = c / f (Hertz)
where
8
c = 3x10
= speed of light (meters per second)
f = receive frequency (Hertz)
λ = wavelength (meters)
The length of the antenna wire in inches can be found for a given frequency using the
following formula:
wire antenna length (inches) = 2952.8 / f (MHz)
Alternatively, the pin receptical can be removed and an alternate antenna connection
can be made. For example, a coaxial wire can be connected to the antenna pad on the
front side of the PCB and ground pad on the back side of the PCB.
The rfPIC12F675 is a low cost, high performance UHF short-range radio ASK
transmitter design using Microchip’s rfPIC12F675K for 315 MHz and rfPIC12F675F for
433.92 MHz. The module design is suitable for:
• Wireless remote command and control
• Remote Keyless Entry (RKE)
• Security systems
• Low power telemetry applications
A schematic of the rfPIC12F675 module, PCB layout, and Bill-of-Materials (BOM) are
provided in the following sections. Gerber files are available on the rfPIC™
Development Kit CD-ROM.
The transmitter modules can be ordered separately. See Table 4-1
TABLE 4-1:TRANSMITTER MODULE ORDERING INFORMATION
rfPIC™ Development Kit 1
User’s Guide
FrequencyOrder Number
315 MHzAC164102
433.92 MHzAC164103
4.2HIGHLIGHTS
This chapter discusses:
• rfPIC12F675 Transmitter Module Description
• rfPIC12F675 Transmitter Module Schematic
• PCB Layout
• Gerber Files
• Bill of Materials
• Third Party Component Suppliers
4.3rfPIC12F675 DESCRIPTION
The rfPIC12F675 (Figure 4-1) is a stand-alone transmitter module that can be used in
a variety of ways. As designed for the rfPIC Development Kit 1, the transmitter module
demonstrates many features of the rfPIC12F675 transmitter device. The transmitter
module contains:
• 2 push-button switches connected to GP3 and GP4
• 2 potentiometers connected to GP0 and GP1
• RF enable (RF
• Data ASK (DATA
• Optional 8-pin socket (U2) for In-Circuit Emulation (ICE) or inserting an 8-pin DIP
package version of the PIC12F675.
Pwr Sel jumper P1 selects one of two power sources for the rfPIC12F675:
• PICkit™ Starter Kit position (pins 1 and 2) – placing a jumper in the PICkit position
allows the transmitter module to be powered from connector P2 pin 13. When the
transmitter module is plugged in the PICkit expansion header J3, the transmitter
module is powered from the PICkit Starter Kit.
Note:When programming the transmitter module in the PICkit Starter Kit, the Pwr
Sel jumper P1 must be in the PICkit position (pins 1 and 2 jumpered).
• Batt position (pins 2 and 3) – placing a jumper in the batt position allows the
transmitter model to be powered from the lithium coin cell battery. When powered
from the battery, the transmitter module can be used in portable operation.
4.3.2
The rfPIC12F675 can be programmed by the PICkit 1 FLASH Starter kit.
Step 1:
Remove the PIC16F676 or PIC12F676 from the PICkit Starter Kit Evaluation Socket.
Step 2:
Plug the transmitter module into the PICkit Starter Kit expansion header J3
(See Figure 4-2).
Step 3:
The internal PIC12F675 in the rfPIC device now becomes the target programming
device. Operate the PICkit Starter Kit in accordance with the steps outlined in the
PICkit™ 1 FLASH Starter Kit User’s Guide.
The transmitter module can be removed for stand-alone operation. Remember to set
the Pwr Sel jumper for each mode of operation (See Power Requirements section
above).
Note:There will be some interaction with the LEDs on the PICkit Starter Kit and
4.3.3
Socket U2 is an unpopulated 8-pin DIP connection on the transmitter module. A
user-provided 8-pin IC socket can be soldered in place.
To use socket U2, the user must disconnect the internal PIC12F675 PICmicro
microcontroller internal to the rfPIC12F675 device from the circuits on the module. This
is done by cutting six PCB traces marked by silk-screened “x”.
Socket U2 can be used for:
• In Circuit Emulation (ICE) with an MPLAB
• Inserting an 8-pin DIP version of the PIC12F675. The DIP PICmicro microcontroller
can be programmed externally (such as a PICSTART
internally via the PICkit Starter Kit.
A detailed description of the rfPIC12F675K/675F/675H microcontroller with UHF
ASK/FSK transmitter is provided in the data sheet, DS70091.
A detailed description of the rfPIC12F675K/675 transmitter module antenna design is
provided in the application note, AN868.
Programming the rfPIC12F675
the rfPIC12F675. If the user desires, the LEDs can be removed from the
circuit by clipping resistors R5, R6, R7, and R8.
This chapter describes common problems associated with using the rfPIC Development
Kit 1 and steps on how to resolve them.
For troubleshooting associated with the PICkit 1 FLASH Starter Kit, please refer to the
Troubleshooting section of the PICkit™ 1 FLASH Starter Kit User’s Guide, (DS40051).
5.2FREQUENTLY ASKED QUESTIONS
5.2.1Devices on the PICkit Starter Kit have no power?
Question:
I see the green POWER LED lit and the yellow BUSY LED extinguished, but there’s no
power to the rfPIC receiver or transmitter module. What is wrong?
Answer:
The green POWER LED tells you that there is power supplied to the PICkit Starter Kit
from the USB cable and that the programming side of the PICkit Starter Kit is powered
(the PIC16C745). The yellow BUSY LED tells you if power is being supplied to the
device under test. Since you mentioned that the yellow BUSY LED is extinguished, this
says that there is no power to the device under test.
Make sure that the DEVICE POWER checkbox (Figure 5-1) on the PICkit GUI is
checked. This feature allows you to control the device under test power from the PICkit
GUI.
When I disconnect and reconnect the USB cable, and I click on the WRITE DEVICE
button, I receive a “Programmer not found” status message (see Figure 5-2).
Answer:
The PICkit GUI has lost communications with the PICkit Starter Kit. Simply click on the
WRITE DEVICE button again and the GUI should re-establish communication with the
PICkit Starter Kit.
If this condition persists, check that the PICkit Starter Kit is receiving power.
FIGURE 5-2:PROGRAMMER NOT FOUND STATUS MESSAGE
5.2.3Insert Device
Question:
I am trying to program the transmitter module and I am getting an “Insert Device” status
message (see Figure 5-3).
Answer:
Check that the Pwr Sel jumper on P1 is in the PICkit Starter Kit position (pins 1 and 2
jumpered).
Microchip Technology Australia Pty Ltd
Marketing Support Division
Suite 22, 41 Rawson Street
Epping 2121, NSW
Australia
Tel: 61-2-9868-6733 Fax: 61-2-9868-6755
China - Beijing
Microchip Technology Consulting (Shanghai)
Co., Ltd., Beijing Liaison Office
Unit 915
Bei Hai Wan Tai Bldg.
No. 6 Chaoyangmen Beidajie
Beijing, 100027, No. China
Tel: 86-10-85282100 Fax: 86-10-85282104
China - Chengdu
Microchip Technology Consulting (Shanghai)
Co., Ltd., Chengdu Liaison Office
Rm. 2401-2402, 24th Floor,
Ming Xing Financial Tower
No. 88 TIDU Street
Chengdu 610016, China
Tel: 86-28-86766200 Fax: 86-28-86766599
China - Fuzhou
Microchip Technology Consulting (Shanghai)
Co., Ltd., Fuzhou Liaison Office
Unit 28F, World Trade Plaza
No. 71 Wusi Road
Fuzhou 350001, China
Tel: 86-591-7503506 Fax: 86-591-7503521
China - Hong Kong SAR
Microchip Technology Hongkong Ltd.
Unit 901-6, Tower 2, Metroplaza
223 Hing Fong Road
Kwai Fong, N.T., Hong Kong
Tel: 852-2401-1200 Fax: 852-2401-3431
China - Shanghai
Microchip Technology Consulting (Shanghai)
Co., Ltd.
Room 701, Bldg. B
Far East International Plaza
No. 317 Xian Xia Road
Shanghai, 200051
Tel: 86-21-6275-5700 Fax: 86-21-6275-5060
China - Shenzhen
Microchip Technology Consulting (Shanghai)
Co., Ltd., Shenzhen Liaison Office
Rm. 1812, 18/F, Building A, United Plaza
No. 5022 Binhe Road, Futian District
Shenzhen 518033, China
Tel: 86-755-82901380 Fax: 86-755-8295-1393
China - Qingdao
Rm. B505A, Fullhope Plaza,
No. 12 Hong Kong Central Rd.
Qingdao 266071, China
Tel: 86-532-5027355 Fax: 86-532-5027205
India
Microchip Technology Inc.
India Liaison Office
Marketing Support Division
Divyasree Chambers
1 Floor, Wing A (A3/A4)
No. 11, O’Shaugnessey Road
Bangalore, 560 025, India
Tel: 91-80-2290061 Fax: 91-80-2290062
Japan
Microchip Technology Japan K.K.
Benex S-1 6F
3-18-20, Shinyokohama
Kohoku-Ku, Yokohama-shi
Kanagawa, 222-0033, Japan
Tel: 81-45-471- 6166 Fax: 81-45-471-6122
Korea
Microchip Technology Korea
168-1, Youngbo Bldg. 3 Floor
Samsung-Dong, Kangnam-Ku
Seoul, Korea 135-882
Tel: 82-2-554-7200 Fax: 82-2-558-5934
Singapore
Microchip Technology Singapore Pte Ltd.
200 Middle Road
#07-02 Prime Centre
Singapore, 188980
Tel: 65-6334-8870 Fax: 65-6334-8850
Microchip Technology Austria GmbH
Durisolstrasse 2
A-4600 Wels
Austria
Tel: 43-7242-2244-399
Fax: 43-7242-2244-393
Denmark
Microchip Technology Nordic ApS
Regus Business Centre
Lautrup hoj 1-3
Ballerup DK-2750 Denmark
Tel: 45-4420-9895 Fax: 45-4420-9910
France
Microchip Technology SARL
Parc d’Activite du Moulin de Massy
43 Rue du Saule Trapu
Batiment A - ler Etage
91300 Massy, France
Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79