SUPER MICRO Computer MIIC-203 User Manual

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User’s Guide



!479,12

RS-232 to I

with ASCII Fast Mode Interface

with iPort Utility Pack for Windows

C Host Adapter

www.mcc-us.com

Introduction

The MCC iPort/AFM (#MIIC-203) RS-232 to I2C Host Adapter with ASCII Fast Mode Interface allows any PC, Host Computer, or Data Terminal with an RS-232 port to become an I or receiving I across an I

C Bus.

This user’s guide describes the installation and operation of the iPort/AFM (#MIIC-203) RS-232 to I

C Master or Slave device, transmitting

C messages to one or more I2C devices

C Host Adapter with ASCII Fast Mode Interface and iPort Utility Pack Software for Windows.

MCC products are licensed to use the I²C Bus.

Purchase of Philips I²C components conveys a license under the Philips I²C patent to use the components of the I²C system, provided the system conforms to the I²C specifications defined by Philips.

I²C is a trademark of Philips Corporation.

Copyright© 2002 by Micro Computer Control Corporation. All rights reserved. No part of this publication may be reproduced by any means without the prior written permission of Micro Computer Control Corporation, PO Box 275, Hopewell, New Jersey 08525 USA.

DISCLAIMER

representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Further, Micro Computer Control Corporation reserves the right to revise the product described in this publication and to make changes from time to time in the content hereof without the obligation to notify any person of such revisions or changes.

Life Support Applications

MCC Products are not designed for use in life support appliances, devices, or systems where the malfunction of a MCC Product can reasonably be expected to result in a personal injury.

WARNING

: Micro Computer Control Corporation makes no

: This equipment can radiate levels of radio frequency energy that may cause interference to communications equipment. Operation of this equipment may cause interference with radio, television, or other communications equipment. The user is responsible for correcting such interference at the expense of the user.

Printed in the United States of America

Table of Contents:

Part 1

RS-232 to I2C Host Adapter w/ASCII Fast Mode Interface

Overview

iPort/AFM Adapter................................................. 8

iPort Utility Pack Software ........................................... 8

Programmer’s Reference ............................................ 8

Packing Slip System Requirements Interconnects

DB-25 Serial Port Pinout ............................................ 10

DB-9 Serial Port Pinout ............................................. 10

+5VDC Power Jack ................................................ 10

I2C Interface Connector ............................................. 11

INT, iNterrupt Signal Control ........................................ 11

Hardware Configuration

Pull-up Resistors .................................................. 12

Connecting to a 3.3v System Connecting to an SMBus System Hardware Set-Up

.............................................................. 8

........................................................... 9

................................................... 9

.......................................................... 9

............................................... 12

............................................. 12

...................................................... 12

......................................... 12

Part 2

iPort Utility Pack For Windows

Introduction to Utility Pack

iPort Message Center............................................... 14

iPort Message Manager ............................................. 15

System Requirements Software Installation Introduction to Message Center

I2C Message Operations............................................. 18

Introduction to Message Manager

I2C Message Operations............................................. 22

Basic Set-up ................................................. 23

Advanced Set-up ............................................. 24

Diagnostic Set-up ............................................. 25

.................................................. 16

................................................... 16

............................................. 14

.......................................... 17

........................................ 21

Sending Messages

..................................................... 26

Master Operations ................................................. 26

To Master Transmit Data ....................................... 26

To Master Receive Data ........................................ 27

Slave Operations .................................................. 28

To Slave Transmit a message.................................... 28

To Slave Receive a message .................................... 28

Uninstalling iPort Utility Pack ........................................... 28

Part 3

Programmer’s Reference ASCII Command Interface Definitions

Quick Start ........................................................... 30

ASCII Command Interface Definitions .................................... 31

Synchronous Interface Events ........................................ 32

iPort/AFM Reset ............................................. 32

Status Display ............................................... 33

RS-232 Baud Rate ............................................ 33

Close I2C Connection ......................................... 34

Set Destination I2C Slave Address................................ 34

Echo/Prompt Control ......................................... 34

Flow Control ................................................ 34

I2C General Call Control ....................................... 35

Hex Only Display Control ...................................... 35

Set iPort/AFM’s Own I2C Slave Address .......................... 36

I2C Bus Clock Rate Control ..................................... 36

Command Menu Display ....................................... 36

iNterrupt Signal Control/Status .................................. 37

Open I2C Connection .......................................... 37

Master Read Message.......................................... 38

Slave Transmit Message........................................ 39

Master Transmit Message ...................................... 40

Set I2C Bus time oUt in msec ................................... 41

Display Firmware Version...................................... 41

eXtended Commands .......................................... 41

Display Tx bYte Count ........................................ 44

Asynchronous Interface Events ....................................... 45

Slave Transmit Request ........................................ 45

Slave Receive Complete ........................................ 45

General Call Receive Complete .................................. 45

I2C Bus Time-out Detected ..................................... 46

iNterrupt Signal Assert......................................... 46

iNterrupt Signal Release ....................................... 46

iPort/AFM Prompts ................................................ 47

iPort/AFM Ready ............................................. 47

Slave Not Acknowledging ...................................... 47

iPort/AFM Busy ............................................. 47

I2C Bus Arbitration Loss ....................................... 47

I2C Bus Error Detected ........................................ 47

I2C Bus Time-out Detected ..................................... 47

iPort/AFM Connection Closed................................... 48

Invalid Command Argument .................................... 48

Slave Transmit Request Not Active .............................. 48

Invalid iPort/AFM Command ................................... 48

iPort/AFM RS-232 Receive Buffer Overflow ...................... 48

Example Code ........................................................ 49

iPort/AFM Reset .................................................. 49

iPort/AFM Initialization ............................................ 49

Master Transmit Message ........................................... 49

Master Receive Message ............................................ 49

Communication Event Processing..................................... 49

iPort/AFM Revision Report ............................................. 53

Additional Information ................................................. 53

Software License Agreement ............................................ 54

Appendix A ........................................................... 56

Part 1

Model MIIC-203

RS-232 to I

C Host Adapter

w/ASCII Fast Mode Interface

Model MIIC-203

RS-232 to I2C Host Adapter

w/ASCII Fast Mode Interface

Overview

The MCC iPort/AFM (#MIIC-203) RS-232 to I Fast Mode Interface allows any PC, Host Computer, or Data Terminal with

an RS-232 port to become an I

receiving I

PRODUCT FEATURES

C messages to one or more I2C devices across an I2C Bus.

C Master or Slave device, transmitting or

C Host Adapter with ASCII



Turn



Supports Standard (100) and Fast (400) I2C Bus Activity.



High Performance Bus Co-Processor



Maximum Bus Throughput with Low Overhead.



19.2, 57.6, and 115.2 k selectable Baud Rates.



Supports Bus Master and Slave, Transmit and Receive, and INT Signaling .



Compatible with 3v to 5v I2C at up to 400kbit/s.



Compatible with iPort/AI applications.

ANY

Computer’s Serial Port into an I2C Port.

The iPort/AFM system consists of the following components:

1) iPort/AFM Adapter

This adapter plugs into an RS-232 Port on a host computer and

generates I

C Bus signals.

2) iPort Utility Pack Software

This software package, included with each iPort, includes the iPort Message Manager and Message Center applications to easily send and

receive I

C Bus messages.

3) Programmer’s Reference

This section includes ASCII command interface definitions and example code to assist in developing a custom application for the iPort/AFM adapter.

Packing Slip

This package includes the following items:

• iPort/AFM (#MIIC-203) RS-232 to I

C Host Adapter with ASCII Fast Mode

Interface.

• 4 Foot I

C Interface Cable. (#CAB4)

• 1Ft. /INT-Trigger Cable (#AXM-12G)

• Serial Port Cable, 9F/25M, 1 Foot Long. (#C9F25M1)

• 1Ft. /INT-Trigger Cable (#AXM-12G)

• iPort/AFM User’s Guide.

• iPort Utility Pack for Windows Software.

• Power Supply

Standard 120VAC, 60Hz, USA Plug (#MWT-5VA) European 220VAC, 50Hz, European Plug (#MWT-5VAE) International 120/220/240VAC, 50-60Hz, Int.Plug selection (#MWT-5VAI)

System Requirements

a. Host computer b. 1 free RS-232 Serial Port

Interconnects

The I2C Bus Host Adapter includes four interconnections:

1. RS-232 Serial Port Connector

RS-232 Serial Port Connector

This connector provides connection to the serial port on the PC. Use the #C9F25M1 cable to adapt the iPort to 9-pin serial ports.

DB-25 Serial Port Pinout

DB-25 Pin 2, Transmit Data from the Host Computer to the iPort DB-25 Pin 3, Receive Data from the iPort to the Host Computer. DB-25 Pin 4, Request to Send from the Host Computer to iPort. DB-25 Pin 5, Clear to Send from the iPort to the Host Computer. DB-25 Pin 7, Ground between Host Computer and iPort

DB-9 Serial Port Pinout

DB-9 Pin 3, Transmit Data from the Host Computer to the iPort DB-9 Pin 2, Receive Data from the iPort to the Host Computer. DB-9 Pin 7, Request to Send from the Host Computer to iPort. DB-9 Pin 8, Clear to Send from the iPort to the Host Computer. DB-9 Pin 5, Ground between Host Computer and iPort

Transmit Data, Receive Data, and Ground are required in all cases. Request to Send and Clear to Send are required if RTS/CTS communication handshaking protocol is selected. See the iPort/AFM Flow Control command.

Communication Handshaking Protocol iPort/AFM implements either XON/XOFF (by default) or RTS/CTS flow

control protocols. Either protocol can be selected with the iPort/AFM Flow Control command. Flow control is used by the iPort/AFM to limit character flow to and from the Host computer to avoid overflowing internal communication buffers and lost data.

Communication Parameters 19,200, 57.6k, or 115.2k Baud, No Parity, 8 Data Bits, 1 Stop Bit The default baud rate is 19,200 until the iPort/AFM receives a Baud Change

command from the host computer.

2. +5VDC Power Jack

The iPort/AFM Host Adapter can be powered in one of two ways, from the

power jack, or from the I

C interface connector. If the unit is powered from

the provided +5VDC Wall Transformer, approximately 250ma of regulated

+5VDC is available at the I If the iPort/AFM is powered from the I

C interface connector to power external devices.

C connector, the unit requires 50ma

of regulated +5VDC.

3. I2C Interface Connector

The iPort/AFM Host Adapter includes a four wire, positive locking, modular connector (see Appendix A for more info on these parts) for interfacing to an

external I

C Bus. Lines provided include I2C Clock (SCL), Data (SDA),

Ground, and +5VDC.

Receptacle Connector

An I2C Interface Cable (White=SCL, Red=+5VDC, Green=SDA,

Black=Ground) is provided to connect to a external I

no standard I

C Bus connector, you may want to cut off one end of the cable

C Bus. Since there is

and add a connector compatible with your target system.

Additional I

C Interface Cables (4 ft., 8ft., or 16 ft.) and above mentioned modular connectors are available from MCC. Clip Lead cables are also available. (see Appendix A)

4. INT, Interrupt Signal Control

The iPort/AFM provides an open drain input/output (INT) which can be connected to a corresponding pin on a master or slave. The INT Signal allows the iPort/AFM to participate in INT master and/or slave communications.

___

An interrupt output (INT=low) is generated upon receiving an iNterrupt assert command from the host computer. Resetting and reactivating the interrupt signal is achieved when a release command is received from the host computer or data is read from or written to the iPort/AFM when

addressed as an I

C Bus slave.

Interrupt monitoring is enabled upon receiving an enable command from the host computer. Interrupt monitoring causes the iPort/AFM to send notification to the host computer when the INT signal changes state.

Hardware Configuration

Pull-up Resistors

The iPort/AFM Host Adapter includes a slide switch used to enable or disable internal 1.8K ohm Pull-Up resistors on the SCL, SDA, and INT lines. Every I2C Bus system must have at least one Pull-Up on each line. Use this switch to configure the iPort/AFM appropriately for your system.

Connecting to a 3.3v System

1. Shut off iPort internal pull-ups. (See Pull-up Resistor section)

2. Use external pull-ups to 3.3 volts. The iPort uses a 5 volt device. 3.3v is high enough for the iPort to see a

Logical 1.

Connecting to an SMBus System

1. Shut off iPort internal pull-ups. (See Pull-up Resistor section)

2. Use external SMBus rated (approx. 15k ohm) pull-up resistors.

Hardware Set-Up

1. Attach your iPort/AFM (#MIIC-203) to an open ComPort on your

computer. If your ComPort has a DB9 connector, use DB-9F to DB-25M Serial Port Adapter Cable included with your iPort/AFM to connect.

2. Connect the power supply provided or see Interconnect Section +5VDC

Power Jack.

3. Connect I

device does not have the matching connector (#15830064) you can cut

C Interface Cable to iPort/AFM and your I2C device. If your

the end of the cable and attach the individual wires to your device or you can purchase our clip-lead cable(#CABCL).

4. Connect INT line if used.

Part 2

iPort Utility Pack for

Windows

iPort Utility Pack for Windows

1. Introduction to Utility Pack

This product includes two (2) Windows applications (Message Manager and

Message Center) that help a user get started sending and receiving I messages quickly.

iPort Message Center

The iPort Message Center operates with all versions of the iPort I2C Bus Host Adapter. With this program you can create, save, and execute scripts

of the following modes of I

C Bus message activity:

C Bus

• Master Transmit

• Master Receive

iPort Message Manager

The Message Manager operates with all versions of the iPort I2C Bus Host

Adapter. Using this program you can perform all four (4) modes of I messages activity, including:

• Master Transmit

• Master Receive

• Slave Transmit

• Slave Receive

C Bus

2. System Requirements



a. One of the following:

1. iPort (#MIIC-201) Windows to I

2. iPort/AI (#MIIC-202) RS-232 to I Interface

3. iPort/AFM (#MIIC-203) RS-232 to I Fast Mode Interface.

b. Windows 95 or higher c. 1 free RS-232 Serial Port.

3. Software Installation

Windows 95 and Above:

C Bus Host Adapter.

C Bus Host Adapter with ASCII

1. Insert software distribution diskette into floppy drive.

2. Select Start

Run. Type “A:SETUP.EXE”.

3. Follow instructions on screen.

iPort Message Center for Windows

Introduction to Message Center

The iPort Message Center supports I2C Master Transmit and Receive

activities for all versions of the iPort I program you can create, save, and execute scripts of I

The MCC iPort Message Center Software, when used with an MCC iPort allows a PC to become an I

sending I

an I

C Bus.

C messages between the PC and one or more I2C devices across

C Master transmitter or receiving device,

C Bus Host Adapter. With this

C Master messages.

The iPort Message Center is designed to be a simple application for experimenting with I

1. Edit a list of I

2. Save and/or Load a list of I

3. Transmit the current list of I

C messages. It provides methods to:

C Master Transmit or Receive Messages.

C Master messages to/from disk.

C Master messages, with the option to auto

repeat upon completion, or send on INT assert (low). (iPort/AFM only)

Each iPort Message Center I

C message can include up to 32 bytes of 8-bit

data, with an optional time delay at the completion of each message.

I2C Message Operations



In order to communicate with another I2C device, a user must take the following steps:

1. Start

Programs iPort Utility PackiPort Message Center

2. Select which device you are operating with by choosing the corresponding image (Opening Screen), or the correct checkbox on the main application.

Opening Screen

Main Application

The Main Application screen is opened by selecting an image on the Opening Screen.

3. Select the PC ComPort where the iPort is connected to your computer.

4. Use the Options menu to override default Baud Rate and I

C Bus Clock

rate settings.

5. Establish a link to the iPort with the Open button. The iPort Message

Center software sets the iPort’s own I

C Slave address to 0xFE.

6. To open an existing message list, click File|Open List on the menu bar.

To enter or edit a message List, open the “I

C Message Editor” screen,

by double clicking on a message row in the spreadsheet.

Now you can:

a. Set the I

C address (i.e. 4C, 4E, etc.)

b. Set Msg Direction (Read or Write)

c. Do stop (yes or no, Repeated starts) d. Set time delay (delay in msec, controls speed of activity). e. Write message data (from 00 to FF) or read count. f. Click OK.

Repeat above steps for additional messages.

You can insert a new message between existing messages by clicking once on message below where you want to insert, press the “Insert” button on

your keyboard, this will bring up the I

C Message Editor screen, set all

information and click OK.

7. On the main screen, click on Send to transmit the current list of I

C Master messages, with the option to auto repeat upon completion, or send on INT assert (low).

Once the link has opened successfully, you are now an active I2C node. Messages are entered into the message spreadsheet and are transmitted upon clicking the Send button. Data received as part of a Master Receive message replaces the 0xFF placeholders in the message spreadsheet control.

If you get a “Slave Not Acknowledging” message in the Communications

Events window, this could mean you have the wrong address in the I

Destination Address, or the device is not answering to its address.

iPort Message Manager Software for Windows

Introduction to Message Manager

The MCC iPort Message Manager Software, when used in conjunction with

an MCC iPort allows a PC to become an I

transmitting or receiving I

devices across an I

C Bus.

C messages between the PC and one or more I2C

The iPort Message Manager is designed to be a simple application for experimenting with I

C messages. It provides methods to:

C Master or Slave device,

1. Set the device’s I

C Slave address, General Call Enable, and other

operating parameters.

2. Master Transmit ASCII text or Hex [~00...~FF] data to a specified I Slave Receiver device.

3. Master Receive data from a specified I

C Slave Transmitter device.

4. Perform Master Read after Write operation.

5. Slave Transmit data to a requesting I

C Master Receive device.

6. Display Slave Receiver data. __

7. Assert or release the INT signal (iPort/AFM only).

Each iPort Message Manager I

C message can include up to 23 bytes of

8-bit ASCII binary data, although the iPort itself is capable of sending or

receiving I

C messages up to 64K bytes in length.

I2C Message Operations



In order to communicate with another I2C device, a user must take the following steps:

Starting the program

Start

Select iPort Device

Programs iPort Utility Pack

iPort Message Manager

Select which device you are operating with by choosing the corresponding image (Opening Screen), or the correct checkbox on the main application.

Opening Screen

Main Application

The Main Application screen is opened by selecting an image on the Opening Screen.

Establish iPort Link

On the Message Manager main screen, click the Open button to view the Set Up Screen. You now have three options of set-up for the Message Manager, Basic Set-up, Advanced Set-up, and Diagnostic Set-up.

Basic Set Up Screen

Basic Set-up

Select the PC ComPort attached to your iPort and the baud rate, then click OK. The Communications Events window on the Main Screen should report

C Open Successful”. If this message does not appear, check the iPort

“I connections and power.

Advanced Set Up Screen

Advanced Set-up

On the Advanced Set-up screen you can set the following parameters:

1. iPort I2C Slave Address

Select iPort’s I

C slave address. iPort will acknowledge

messages sent to this address.

2 .iPort General Call

Enabled allows iPort to respond to the I

General call is used to broadcast an I

3. I

C Bus Master Bit Rate (iPort, iPort/AFM)

C general call address (00).

C message to multiple devices.

The speed of the Bus will run. 100KHz is standard mode, 400kHz is fast mode. Use other rates if you are having trouble talking to a very slow slave device.

C Bus TimeOut (Msec) (iPort, iPort/AFM)

4. I

Control how long iPort will wait before reporting an I

C Bus intra-message

timeout. (0=None, 1...32767 msec)

5. Enable INT monitor (iPort/AFM only) Enables monitoring of the INT signal state. INT state changes are reported in the main screen Communications Events window.

Diagnostic Set Up Screen

Diagnostic Set-up (iPort Only) On the Diagnostic Set-up screen you can set the following parameters:

1. iPort Log File Level

Select iPort logging level.1 gives minimal info, 4 is verbose. Use the log file to troubleshoot communication problems.

2. Log File Name iPort log file name if enabled.

3. Log File Size (Lines)

iPort log file length if enabled.

4. Set the Destination Slave Address

On the main screen, use the I

C Destination Address list control to set the

slave address of the device you want to communicate with. Additional operating information is available by viewing the Status and Log

File. (Option available only for the iPort).

Sending Messages

Master Operations

To Master Transmit Data

1. On the main screen, set the Master Tx Message Bytes edit box to the data you want to send by single clicking on the box. For example: To send a 0x05(hexadecimal) to the device, enter ~05 in the edit box. Click Ok and then the Master TX button to send the message. The Communications Events window on the main screen should report “Master TX Complete”. If this message does not appear, check the slave device address, connections, and power.

Example:

You have the option to Auto Repeat a transmitted message upon completion by checking the Auto Repeat box. Also you may do a DoStop which will perform repeated starts automatically.

to send message 0x01, 0x02, 0x03, type in ~01~02~03.

2. To Master Receive Data

On the main screen, use the I

C Destination Address list control to set the

slave address of the device you want to communicate with.

Main Application Screen

On the lower part of the main screen, set the Bytes to MasterRx edit box to the number of bytes you want to read. For example: Set this to 1 to read a single byte. Click on the Master RX button to receive the message. Data received from the slave is displayed in the Received Messages text box on the main screen. The Communications Events window should report “Master RX Transfer Complete”. If this message does not appear, check the slave device address, connections, and power.

If you get a “Slave Not Acknowledging” message in the Communications

Events window, this could mean you have the wrong address in the I

Destination Address, or the device is not answering to its address. You have the option to Auto Repeat a transmitted message upon completion

by checking the Auto Repeat box. Also you may do a DoStop which will perform repeated starts automatically. Another option you have is to do “DoNak”, which allows you to Ack or Nak the last byte coming from a Slave Transmitter. Some Slave Transmitter Devices require a Nak on the final byte going across the bus. (Option only available for the windows iPort).

Slave Operations

To Slave Transmit a message:

Enter data to be transmitted in the Slave Tx Message Bytes control by single clicking. Binary data bytes are entered using a three character Hex-Equivalent format (~00 ... ~FF), you may also type in ASCII text. These bytes are automatically transmitted when a Slave Transmit Request is received from a Master device.

To Slave Receive a message:

Data bytes received from a Master Transmitter are automatically displayed in the Received Message window. Received binary data is displayed using a three character Hex-Equivalent format (~00 ... ~FF). By selecting the HexDisplay checkbox, the data is displayed as Hexadecimal data .

Uninstalling iPort Utility Pack

Click, Start | Programs | iPort Utility Pack | uninstall. Follow the on screen instructions.

Part 3

Programmer’s Reference

ASCII Command Interface Definitions

iPort/AFM

Quick Start

Follow these steps to start sending and receiving I2C messages:

1. Install iPort/AFM as directed in the “Installation Instructions” section of this

User’s Guide.

2. Use a terminal emulator program (like the Windows Terminal Program or

Windows Hyperterminal) to get started. Remember to select the correct Com Port (COM1, COM2,…) and set the terminal emulator to 19200 Baud, 8 Data Bits, No Parity, and 1 Stop Bit.

3. Enter // to get an iPort/AFM Status Report.

Note

: All iPort/AFM commands are terminated with a Carriage Return character. On most terminal emulators press the Enter key.

4. Enter

/E1

to Enable the Echo/Prompt feature. This makes it easier for a

person to interact with the iPort/AFM from a terminal.

5. Enter

/F0

/F1

to set iPort/AFM’s communications Flow Control to match

your terminal.

6. Enter

/Ixx

(xx = 02…FE even) to set iPort/AFM’s Own I

C Slave Address.

7. Enter /O to Open the iPort/AFM Connection. The iPort/AFM does not need to

be connected to an I

8. Enter

9. Enter

/Dxx

(xx = 00…FE even) to select a Destination I

/Ttext

(text = ASCII or Hex-Equivalent ~00…~FF) to Master Transmit a

message to the current Destination I

10. Enter Destination I

/Rn

(n = 0…32767) to Master Read a message from the current

C Slave device.

C Bus to open a connection.

C Slave device.

C Slave Address.

Syntax: [CR] = Carriage Return

The following sections provide detailed information on all Commands and Prompts.

For the latest product information and application note visit our web site at:

http://www.mcc-us.com

iPort/AFM

ASCII

ASCII Text Interface Commands

Note: [CR] = Carriage Return Code or Enter Key.

Syntax: [Select], (Optional), xx = [00..FE], n = [0..32767]

Command Description

iPort/AFM

Ctrl/R,Ctrl/R,Ctrl/R

//[CR]

/B[0|1|2][CR]

/C[CR]

/Dxx[CR]

/E[0|1][CR]

/F[0|1][CR]

iPort/AFM Reset

This command resets the iPort/AFM to its default state.

Status Display

Display iPort/AFM status information.

RS-232 Baud Rate Control

Set the RS-232 Baud rate (0 = 19.2, 1 = 57.6, 2 = 115.2 Baud)

Close I

Disconnect from the I

Set Destination I

Set the destination I

C Connection

C Slave Address

C Slave Address for subsequent Master Transmit or

C Bus.

Receive operations.

Echo/Prompt Control [0 = Disable, 1 = Enable]

Enable/Disable data entry echo and prompts.

Flow Control [0 = XON/XOFF, 1 = RTS/CTS]

Select serial communication handshaking protocol.

/G[0|1][CR]

/H[0|1][CR]

/Ixx[CR]

/K[0|1|2|3][CR]

/M[CR]

C General Call Control [0 = Disable, 1 = Enable]

Enables/Disables iPort/AFM response to I

C Bus General Call (00)

messages.

Hex Only Display Control [0 = Disable, 1 = Enable]

Controls display format of received message data.

Set iPort/AFM’s Own I

Sets iPort/AFM's own I

C Slave Address

C Slave Address. iPort/AFM will respond to I2C

Bus messages sent to this address.

C Bus Clock Rate Control

Set I

C Bus Clock Rate Control (0=23, 1=86, 2=100, 3=400 KHz)

Command Menu Display

Display iPort/AFM's Command Menu

/N( [0|1|A|R] )[CR]

iNterrupt Signal Monitor/Control/Status

Sets Monitor/Control/Status of INT line. [0 = Disable, 1 = Enable, A = Assert, R = Release/CR=Status]

/O[CR]

/(*)Rn[CR]

/S(text)[CR]

/(*)T(text)[CR]

/Un[CR]

/V[CR]

Open I

Activates iPort/AFM as an I

C Connection

C device attached to the bus.

Master Read Message

Read the specified number of data bytes from the current Destination I Slave device. * = No Stop for Repeated Start

Slave Transmit Message

Write the specified data bytes to a requesting I

C Master Receiver device.

Master Transmit Message

Master Transmit the specified data bytes to the current Destination I

Slave device. * = No Stop for Repeated Start

I2C

Bus Time-oUt

I2C

Set

Bus Time-oUt in msec (0=Disable)

Display Firmware Version

(Major XX.XX M inor) (R equires Version 2.0 or later)

/X[CR]

eXtended Commands

(See Prompt or User’s G uide) (R equires Version 2.0 or later)

/Y[CR]

Note:

An online version of this programmer’s reference is available at: http://www.mcc-us.com/203ug.htm

Synchronous Interface Events

Display Tx bYte Count

(Requires Version 2.0 or later)

Synchronous Events are those iPort/AFM interface activities initiated by the Host computer.

iPort/AFM Reset

This command resets iPort/AFM to its default state. This command consists of three (3) sequential Ctr/R characters.

Ctr/R is the character code Decimal 18 and Hexadecimal 12, and can also be generated by holding down the Ctrl Key and pressing R.

Note: It is recommended that the Host computer turn off all serial port flow control before sending this command. Flow control should be enabled once the response is received.

Command: Ctrl/R,Ctrl/R,Ctrl/R ‘iPort Reset Response. * ‘iPort/AFM Ready Default Setting: None

Status Display

This command displays current iPort/AFM status.

Command: //[CR] 'Status Display Response:

iPort/AFM I

RS-232 Baud Rate (19.2KHz) Destination I

C Slave Address (4EH) Echo/Prompt (Disabled) Flow Control (XON/XOFF) Hex Only Display (Enabled)

C Connection (Closed) General Call (Enabled) iPort’s own Slave Address (6EH) I2C Bus Clock Rate (100 KHz) iNterrupt Signal (Released) I2C Bus Time-oUt (10000 msec)

RS-232 Baud Rate

This command sets the RS-232 Baud Rate. (0=19.2k, 1=57.6k, 2= 115.2k)

Command: /B[0|1|2][CR] 'Set RS-232 Baud Rate Response 1: /BC0[CR] 'Baud Change Complete Response 2: /BC1[CR] 'Baud Change Complete Response 3: /BC2[CR] 'Baud Change Complete Response 3: /I89[CR] 'Invalid Command Argument

Default Setting: /B0[CR]

Close I2C Connection

This command disconnects iPort/AFM from the I

C Bus.

Command: /C[CR] 'Close I

C Connection Response: /CCC[CR] 'Close Connection Complete Default Setting: 'Closed

Set Destination I

This command sets the destination I

C Slave Address

C Slave Address (Hex 0,2...FE) for all

subsequent Master Transmit or Receive operation.

Command: /Dxx[CR] 'Set Destination I

C Slave Address Response 1: * 'iPort/AFM Ready Response 2: /I89[CR] 'Invalid Command Argument Default Setting: 00

Echo/Prompt Control

This command enables or disables data entry echo and prompts used as feedback to manual operations from a computer terminal.

Command: /E[0|1][CR] 'Echo/Prompt Control [0 = Off, 1 = On] Response: * 'iPort/AFM Ready Default Setting: Off

Flow Control

This command selects the serial communication handshaking protocol to be use in communicating with the Host computer.

iPort/AFM implements either XON/XOFF (by default) or RTS/CTS flow control protocols. Flow control is used by the iPort/AFM to limit character flow to and from the Host computer to avoid overflowing internal communication buffers and lost data.

The XON/XOFF protocol inserts characters directly into the ASCII data stream. XON (Hexadecimal 11) is used to enable the flow of data. XOFF (Hexadecimal 13) is used to stop the flow of data.

The RTS/CTS protocol uses two additional wires in the cable connecting communicating devices. The RTS wire is an output signal. It indicates that the device generating the signal has buffer space available, and can receive. The CTS wire is an input signal. It indicates that the other device has buffer space available, and can receive.

In general, XON/XOFF requires a minimal three-wire connection, Ground, Transmit Data, and Receive Data. This protocol does insert control characters into the stream of data, and may not be appropriate for all Host systems. If supported, these control characters are normally automatically stripped out of the data stream by Host communication driver software, and are not visible at the application program level.

The RTS/CTS protocol requires a serial port, cabling, and Host communication driver software that supports the additional control signals.

Command: /F[0|1][CR] Flow Control [0 = XON/XOFF, 1 = RTS/CTS] Response: * 'iPort/AFM Ready Default Setting: XON/XOFF

C General Call Control

This command enables or disables iPort/AFM response to I

C Bus General Call

(Address 00) messages.

Command: /G[0|1][CR] ' I

C General Call [0 = Disabled, 1 = Enabled] Response: * 'iPort/AFM Ready Default Setting: Enabled

Hex Only Display Control

This command controls Hex Only (~00...~FF) output of Master or Slave received data.

When enabled, all received I

C message data bytes are displayed in Hex (~00…~FF)

form.

When disabled, received I

C message data bytes representing ASCII printable characters are displayed as their ASCII printable character. Non-ASCII printable data bytes are always displayed in Hex (~00…~FF) form.

Command: /H[0|1][CR] 'Hex Only Display [0 = Disabled, 1 = Enabled] Response: * 'iPort/AFM Ready Default Setting: Enabled

Set iPort/AFM’s Own I

This command sets iPort/AFM's own I

C messages to this address will cause iPort/AFM to become an active Slave device

C Slave Address

C Slave Address (Hex 2...FE). Subsequent

on the bus.

Command: /Ixx[CR] 'Set iPort/AFM’s Own I

C Slave Address Response 1: * 'iPort/AFM Ready Response 2: /I89[CR] 'Invalid Command Argument Default Setting: 6E

C Bus Clock Rate Control

Set the I

C Bus master clock rate.

(0=23, 1=86, 2=100, 3=400KHz)

Command: /K[0|1|2|3][CR] 'Set iPort/AFM’s Clock Rate Response 1: * Default Setting: /K2[CR]

The iPort/AFM clock rate for standard commands is controlled by the oscillator crystal we use on our microcontroller. This crystal has been selected to give accurate RS-232 baud rates, as the RS-232 baud rate must exactly match the rate used by the host computer. Master I2C clock rates are the fastest possible given the required crystal frequency. Slave I2C clock rates are driven by the external master device, with possible clock-stretching as required to store or retrieve message data.

Command Menu Display

This command displays iPort/AFM’s command menu. Command: /M[CR] 'Command Menu Display

Response: iPort/AFM Command Menu Syntax: [Select], (Optional), xx=[00..FE], n=[1..32767]

(0=Disable, 1=Enable / A=Assert, R=Release / <CR>=Status /O Open I2C Connection /(*)Rn Master Rx Message *=No Stop /S(text) Slave Tx Message /(*)T(text) Master Tx Message *=No Stop

/Un Set /V Display Firmware Version (Major XX.XX Minor) /X[...]... Extended Cmds (See Prompt or User’s Guide) /Y Display Tx bYte Count

Bus Time-oUt in msec 0=Disable)

I2C

Interrupt Signal Control/Status

___ The INT signal allows the iPort/AFM to participate in INT master and/or slave communications.

Command: /N0[CR] Disable Monitor

/N1[CR] Enable Monitor /NA[CR] Assert INT Signal

/NR[CR] Release INT Signal Response: * Default Setting: /N0

Open I2C Connection

This command activates iPort/AFM as an active device on the I

, /NR

C Bus.

Command: /O[CR] 'Open I

C Connection Response: /OCC[CR] 'Open Connection Complete Default Setting: Closed

Master Read Message

This command causes iPort/AFM to read the specified number of data bytes from the currently selected Destination I

C Stop condition after the last byte is received.

C Slave Address with or without generating an

Enter Byte Count (Decimal 0...32767) then Press Enter, or ESCape to Cancel. A Byte Count of Zero (0) represents a Variable Length message, where the first byte

read from the I

C Slave device indicates the number of additional trailing bytes are available to read. iPort/AFM automatically reads the first byte, then the additional bytes as specified by the first byte. All message bytes including the Length byte are returned to the Host computer.

The received text is a representation of the data bytes within the Master Receive message. The format of this data is controlled by the current setting of the Hex Only Display Control .

If the device acknowledges its I read from the current Destination I

C Slave Address, the specified number of bytes are

C Slave Address. iPort/AFM acknowledges all

bytes read except the last. If not disabled, the message is then terminated with an

C Stop condition.

Sending Master Receive messages with No Stop allows the Master to retain exclusive control of the I

C Bus until it finally sends a Stop. During this time, the Master can send additional (Repeated Start) Master Transmit or Master Receive messages to the same or other I

C Slave devices.

Command: /(*)Rnnnn[CR] 'Master Read Message

(* = No Stop) Response 1: /MRCtext[CR] 'Master Read Complete Response 2: /SNA[CR] 'Slave Not Acknowledging Response 3: /I81[CR] 'iPort/AFM is Busy, Command Ignored Response 4: /I83[CR] ' I

C Arbitration Loss Detected Response 5: /I88[CR] 'iPort Connection Not Open Response 6: /I89[CR] 'Invalid Command Argument Default Setting: None

Slave Transmit Message

This command should be issued to iPort/AFM in response to a Slave Transmit Request (/STR). This command causes iPort/AFM to write the specified data bytes to the requesting I

C Master Receiver device.

Enter Message Bytes (1 or more Printable ASCII or Hex-equivalent ~00..~FF), then Press Enter, or ESCape to Cancel.

Note 1

the I initiates an I

: Upon receiving a Slave Transmit request from a Master Receiver device on

C Bus, iPort/AFM outputs a Slave Transmit Request to its Host device, and

C Clock Stretch (SCL Low) until a Slave Transmit Text command is received from the Host computer. While clock stretching, no other messages can be transmitted on the I

Note 2

: The tilde (~) character and the Carriage Return (CR) character are used as

C Bus.

special marker characters within all iPort/AFM transmit text messages. These characters may not be used within the text of a message, but must be replaced by the following "Hex equivalent" characters:

Tilde replaced by "~7E" Carriage Return replaced by "~0D"

iPort/AFM automatically translates "Hex equivalent" characters to their single-byte value for transmission across the I

C Bus.

All entered data bytes are transmitted to the requesting Master Receiver device. Slave Transmit stops upon receiving the first negative acknowledgment (Nack) from the Master Receiver.

Command: /Stext[CR] 'Slave Transmit Message Response 1: /STC[CR] 'Slave Transmit Complete Response 2: /I88[CR] 'iPort Connection Not Open Response 3: /I8A[CR] ‘Slave Transmit Request Not Active, Cmd Ignored Default Setting: None

Examples:

/Sabcd1234[CR] ‘ASCII Printable characters "abcd1234" /S~00~01~02[CR] ‘Binary data bytes 00, 01,02

/Sab~7Ecd[CR] ‘Tilde embedded in ASCII Printable characters /S12~0D24[CR] ‘Carriage Return embedded in ASCII Printable characters

Master Transmit Message

This command causes iPort/AFM to write the specified data bytes to the currently selected Destination I

C Slave Address with or without generating an I2C Stop

condition after the last byte is transmitted.

Enter Message Bytes (0 or more Printable ASCII or Hex-equivalent ~00..~FF), then Press Enter, ESCape to Cancel.

Note: The tilde (~) character and the Carriage Return (CR) character are used as special marker characters within all iPort/AFM transmit text messages. These characters may not be used within the text of a message, but must be replaced by the following "Hex-equivalent" characters:

Tilde replaced by "~7E" Carriage Return replaced by "~0D"

iPort/AFM automatically translates "Hex equivalent" characters to their single-byte value for transmission across the I

C Bus.

All entered data bytes are transmitted to the Destination I

C Slave Receiver device. Master Transmit stops upon receiving the first negative acknowledgment (Nack) from the Slave Receiver. If not disabled, the message is then terminated with an I Stop condition.

Sending Master Transmit messages with No Stop allows the Master to retain exclusive control of the I

C Bus until it finally sends a Stop. During this time, the Master can send additional (Repeated Start) Master Transmit or Master Receive messages to the same or other I

C Slave devices.

Command: /(*)Ttext[CR] 'Master Transmit Message

(* = No Stop) Response 1: /MTC[CR] 'Master Transmit Complete Response 2: /SNA[CR] 'Slave Not Acknowledging Response 3: /I81[CR] 'iPort/AFM is Busy, Command Ignored Response 4: /I83[CR] ' I

C Arbitration Loss Detected

Response 5: /I88[CR] 'iPort Connection Not Open

Default Setting: None

Examples: /Tabcd1234[CR] ‘ASCII Printable characters "abcd1234"

/T~00~01~02[CR] ‘Binary data bytes 00, 01,02 /*T~00~01~02[CR] ‘Binary data bytes 00, 01,02 with No Stop /Tab~7Ecd[CR] ‘Tilde embedded in ASCII Printable characters /T12~0D24[CR] ‘Carriage Return embedded in ASCII Printable characters

Set I

C Bus Time-oUt in msec

Set bus time-out in msec (0=disable) The iPort/AFM reports a bus time-out if no bus activity for the specified time occurs

within an I

C Bus message.

Command: /Unnnn[CR] 'I2C Bus time-oUt Response: *

Display Firmware Version

(requires V2.00+)

Display firmware version

Command: /V[CR] 'Firmware Version Response: /VCCXX.XX[CR] '(Major XX.XX Minor)

eXtended Commands

(requires V2.00+)

The eXtended commands are used to generate “out-of-spec” signaling. eXtended commands cannot use the I2C hardware to control the SCL and SDA lines, as the I2C hardware only generates I2C compatible signals. The eXtended commands use firmware to “bit-bang” the SCL and SDA lines. This firmware cannot operate as fast as the hardware, and it can be interrupted at any time by internal interrupts. The eXtended commands run directly off the command characters as they are received on the RS-232 link. Speed of execution of eXtended commands is controlled by the RS-232 baud rate, the execution speed of the firmware, delays caused by execution interruptions that may occur while a command is executing, and I2C Bus clockstretching by external slave devices.

The following commands manipulate the I

C Clock (SCL) and data (SDA) lines.

Command: /X[S|~xx|R| r|P|0|1|?|D|d|C|c|L|A| |"]..., then Press Enter or ESCape Enter /X followed by zero or more sub-commands, the [CR]

Response: /XCC(see commands below)[CR] High Level Sub-Commands: S = Send Start

~xx = Send Byte (xx = 00...FF)(response = A or N) R = Read Byte with Ack (response = ~xx) r = Read Byte with Nak (response = ~xx) P = Send Stop

Mid Level Sub-Commands: 0 = Send 0 Bit

1 = Send 1 Bit ? = Read Bit (response = 0 or 1)

Low Level Sub-Commands: D = Set SDA High

d = Set SDA Low C = Set SCL High c = Set SCL Low L = Read SCL (response = 0 or 1) A = Read SDA (response = 0 or 1)

Misc Sub-Commands: space = no action

“comment” = no action Examples:

Master transmit three bytes to slave address 0x4e using high level, mid level, and low level sub-commands.

High Level Command:/X S ~4e ~01 ~02 ~03 P [CR] High Level Response: /XCCAAAA[CR]

Mid Level Command:/X S 01001110 ? 00000001 ? 00000010 ? 00000011 ? P [CR]

Mid Level Response: /XCC0000[CR]

Low Level Command:/X dc dCcDCcdCcdCcDCcDCcDCcdCc DCAc dCcdCcdCcdCcdCcdCcdCcDCc DCAcdCcdCcdCcdCcdCcdCcDCcdCc DCAc dCcdCcdCcdCcdCcdCcdCcDCc DCAc dCD[CR]

Low Level Response: /XCC0000[CR]

Master read three bytes from slave address 0x4F. First two bytes are acknowledged by master.

Comma nd: /X S ~4f Rrr P [CR] Response: /XCCA~xx~xx~xx[CR] ‘(xx = 00...FF)

Master transmit a Write WCR command to a Xicor X9241 at slave address 0x50. WCR data is 0x00.

Command: /X S ~50 ~a0 ~00 P [CR] Response: /XCCAAA[CR]

Master transmit a Write WCR command to a Xicor X9241 at slave address 0x50. WCR data is 0x3f.

Comma nd: /X S ~50 ~a0 ~3f P [CR] Response: /XCCAAA[CR]

Issue a Read WCR command to a Xicor X9241 at slave address 0x50.

Command: /X S ~50 ~90 ~R P [CR] Response: /XCCAA~xx[CR] ‘(xx = 00...FF)

Issue an Increment Wiper command to a Xicor X9241 at slave address 0x50.

Comm a nd: /X S ~50 ~20 1 P [CR] Response: /XCCAA[CR]

Issue an Decrement Wiper command to a Xicor X9241 at slave address 0x50.

Comm a nd: /X S ~50 ~20 0 P [CR] Response: /XCCAA[CR]

Display Tx bYte Count

(requires V2.00+)

Returns the number of bytes received by the slave device in the last master transmit message.

Command: /Y[CR] 'Tx bYte Count Response: /TBCn[CR] 'n =00000...32767

Asynchronous Interface Events

Asynchronous Events are those iPort/AFM interface activities initiated by the iPort/AFM I

C Host Adapter in response to activities on the I2C Bus.

Slave Transmit Request

This event is caused by the reception of an I

C Bus Slave Transmit message directed

at the current iPort/AFM’s own Slave address. Prompt: /STR[CR] ‘Slave Transmit Request

Command: /Stext[CR] ‘Slave Transmit Text The normal Host computer response is to send a Slave Transmit Text (/Stext[CR])

command.

Note

the I initiates an I

: Upon receiving a Slave Transmit request from a Master Receiver device on

C Bus, iPort/AFM outputs a Slave Transmit Request to its Host device, and

C Clock Stretch (SCL Low) until a Slave Transmit Text command is received from the Host computer. While clock stretching, no other messages can be transmitted on the I

Slave Receive Complete

This event is caused by the reception of an I

C Bus.

C Bus Slave Receive message directed

at the current iPort/AFM’s own Slave address. The received text is a representation of the data bytes within the Slave Receive

message. The format of this data is controlled by the current setting of the Hex Only Display Control .

Prompt: /SRCtext[CR] ‘Slave Receive Complete Command: None Required

General Call Receive Complete

This event is caused by the reception of an I at the I

C General Call Address (00), when iPort/AFM’s General Call recognition is

C Bus Slave Receive message directed

enabled.

The received text is a representation of the data bytes within the Slave Receive message. The format of this data is controlled by the current setting of the Hex Only Display Control .

Prompt: /GRCtext[CR] ‘General Call Receive Complete Command: None Required

C Bus Time-out Detected

Prompt: /I85[CR] I

C Bus Time-out Detected

Cause: iPort/AFM issues this response when an I

C Bus message lasts for more than 1 second. No corrective action is taken by iPort/AFM. No Host response is required, but this event can be used to detect bus problems.

iNterrupt Signal Assert

Prompt: /NSA[CR] iNterrupt Signal Assert (low) Detected

iNterrupt Signal Release

Prompt: /NSR[CR] iNterrupt Signal Release (high) Detected

iPort/AFM Prompts

iPort/AFM Prompts are messages generated by iPort/AFM in response to Host computer commands.

iPort/AFM Ready

Prompt: * ‘iPort/AFM Ready Cause: iPort/AFM is ready for the next Host command.

Slave Not Acknowledging

Prompt: /SNA[CR] ‘Slave Not Acknowledging Cause: There is no response (I

Transmit or Receive operation from an I

C Address.

iPort/AFM Busy

C Slave Address Acknowledgment) during a Master

C Slave device at the current Destination

Prompt: /I81[CR] ‘iPort/AFM Busy Cause: Host attempted a Master operation while iPort/AFM was busy. Host should

repeat the last command.

C Bus Arbitration Loss

Prompt: /I83[CR] ‘I Cause: iPort/AFM lost I

Receiving an I

C Bus Error Detected

C message. Host should repeat the last command.

Prompt: /I84[CR] ‘I Cause: iPort/AFM has detected a error condition on the I

C Arbitration Loss Detected

C Bus Arbitration while Master Transmitting or Master

C Bus Error Detected

C Bus. Host should repeat

the last command or issue an iPort/AFM Reset command.

C Bus Time-out Detected

Prompt: /I85[CR] ‘I Cause: iPort/AFM issues this command when an I

C Bus Time-out Detected

C Bus message lasts for more than 1 second. No corrective action is taken by iPort/AFM. No Host response is required, but this event can be used to detect bus problems.

iPort/AFM Connection Closed

Prompt: /I88[CR] ‘iPort/AFM Connection is Closed. Cause: Host is attempting to perform an I

iPort/AFM Connection is Closed. The Host should issue an Open I command before attempting to perform I

Invalid Command Argument

C Bus message operation while the

C Connection

C Bus message operations.

Prompt: /I89[CR] ‘Invalid Command Argument Detected Cause: This event normally indicates the value of a Host command argument was

out of range. The Host should reissue command with correct arguments.

Slave Transmit Request Not Active

Prompt: /I8A[CR] ‘Slave Transmit Request Not Active Cause: This event indicates the Host attempted to issue a Slave Transmit Text

command when no Slave Transmit Request was present.

Invalid iPort/AFM Command

Prompt: /I8F[CR] ‘Invalid iPort/AFM Command Cause: This event normally indicates that an invalid command was issued by the

Host. The Host should reissue the correct command.

iPort/AFM RS-232 Receive Buffer Overflow

Prompt: /I90[CR] ‘iPort/AFM RS-232 Receive Buffer Overflow Cause: This event normally indicates that data sent to the iPort/AFM via the RS-232

serial port has been lost. Check your Host Computer Serial Port Flow Control (XON/XOFF, or Hardware) to make sure it matches current iPort/AFM Flow Control. Also check if Host Computer FIFO buffers in the 16550 UART are enabled. If so, reduce Transmit Buffer level.

Example Code

The following examples are written in MS Visual Basic V3 for Windows using the serial communications control (MSCOMM.VBX). It can be used as a guide in implementing iPort/AFM interface programs in other programming languages and operating environments.

Note:

iPort/AFM Reset

This example code is available online at: http://www.mcc-us.com/202ug.htm#ExampleCode.

Comm1.Output = Chr$(18) 'Ctrl/R Comm1.Output = Chr$(18) 'Ctrl/R Comm1.Output = Chr$(18) 'Ctrl/R

iPort/AFM Initialization

Comm1.Output = "/f0" 'Set iPort/AFM XON/XOFF Flow Control Comm1.Output = Chr$(13)

Comm1.Output = "/i70" 'Set iPort/AFM’s Own Slave Address Comm1.Output = Chr$(13)

Comm1.Output = "/d4e" 'Set Destination Slave Address Comm1.Output = Chr$(13)

Comm1.Output = "/o" 'Open I

C Connection

Comm1.Output = Chr$(13)

Master Transmit Message

Comm1.Output = "/T~00~01" 'Send Master Tx Command Comm1.Output = Chr$(13) 'Terminate Command

Master Receive Message

Comm1.Output = "/R10" 'Send Master Rx Command Comm1.Output = Chr$(13) 'Terminate Command

Communication Event Processing

Static Sub Comm1_OnComm () Static LineBuf$

While Comm1.InBufferCount

Msg$ = Comm1.Input ' Get Comm input character CharIn$ = Msg$

If Msg$ = Chr$(13) Then Msg$ = "" ' Remove CR If Msg$ = Chr$(10) Then Msg$ = "" ' Remove LF If Msg$ = "*" Then ' if iPort/AFM Ready

Msg$ = "****" ‘ Substitute Token

CharIn$ = Chr$(13) ‘ Terminate Line End If LineBuf$ = LineBuf$ + Msg$ 'Add new text to line buffer

If CharIn$ = Chr$(13) Then ' if Carriage Return detected

iPortResp$ = Left$(LineBuf$, 4) 'Isolate Response Code

' Test for iPort/AFM Synchronous Interface Events

If (StrComp(iPortResp$, "/OCC") = 0) Then

' Open Connection Complete Processing TextBox.Text = "/OCC Open Connection Complete"

ElseIf (StrComp(iPortResp$, "/MTC") = 0) Then

' Master Transmit Complete Processing TextBox.Text = "/MTC Master Tx Complete"

ElseIf (StrComp(iPortResp$, "/MRC") = 0) Then

' Master Rx Complete Processing TextBox.Text = LineBuf$ 'Update Display

ElseIf (StrComp(iPortResp$, "/STC") = 0) Then

' Slave Tx Complete Processing TextBox.Text = "/STC Slave Tx Complete"

ElseIf (StrComp(iPortResp$, "/CCC") = 0) Then

' Close Connection Complete Processing TextBox.Text = "/CCC Close Connection Complete "

ElseIf (StrComp(iPortResp$, "/BC0") = 0) Then

' iPort/AFM Baud Change 0 {19.2K} TextBox.Text = "iPort/AFM Baud Change 0 {19.2K} "

ElseIf (StrComp(iPortResp$, "/BC1") = 0) Then

' iPort/AFM Baud Change 1 {57.6K} TextBox.Text = "iPort/AFM Baud Change 1 {57.6K} "

ElseIf (StrComp(iPortResp$, "/BC2") = 0) Then

' iPort/AFM Baud Change 2 {115.2K}

TextBox.Text = "iPort/AFM Baud Change 0 {115.2K} " ' Test for iPort/AFM Asynchronous Interface Events ElseIf (StrComp(iPortResp$, "/SRC") = 0) Then

' Slave Rx Complete Processing

TextBox.Text = LineBuf$ 'Update Display ElseIf (StrComp(iPortResp$, "/GRC") = 0) Then

' General Call Rx Complete Processing

TextBox.Text = LineBuf$ 'Update Display ElseIf (StrComp(iPortResp$, "/STR") = 0) Then

' Slave Tx Request Processing

Comm1.Output = "/S~00~01" 'Send Slave Tx Msg

Comm1.Output = Chr$(13) 'Terminate Command

TextBox.Text = LineBuf$ 'Update Display ElseIf (StrComp(iPortResp$, "/NSA") = 0) Then

' iNterrupt Signal Assert Detected

TextBox.Text = iNterrupt Signal Assert Detected

'Update Display ElseIf (StrComp(iPortResp$, "/NSR") = 0) Then

' iNterrupt Signal Release Detected

TextBox.Text = iNterrupt Signal Release Detected

'Update Display ' Test for iPort/AFM Response Messages ElseIf (StrComp(iPortResp$, "****") = 0) Then

TextBox.Text = "* iPort/AFM Ready" 'Update Display ElseIf (StrComp(iPortResp$, "/SNA") = 0) Then

TextBox.Text = "/SNA Slave Not Acknowledging" ElseIf (StrComp(iPortResp$, "/I81") = 0) Then

TextBox.Text = "/I81 iPort/AFM Busy" 'Update Display ElseIf (StrComp(iPortResp$, "/I83") = 0) Then

TextBox.Text = "/I83 Arbitration Loss" 'Update Display ElseIf (StrComp(iPortResp$, "/I84") = 0) Then

TextBox.Text = "/I84 I2C Bus Error Detected" ElseIf (StrComp(iPortResp$, "/I85") = 0) Then

TextBox.Text = "/I85 I2C Bus Time-out Detected" ElseIf (StrComp(iPortResp$, "/I88") = 0) Then

TextBox.Text = "/I88 iPort/AFM Connection Closed" ElseIf (StrComp(iPortResp$, "/I89") = 0) Then

TextBox.Text = "/I89 Invalid Command Argument" ElseIf (StrComp(iPortResp$, "/I8A") = 0) Then

TextBox.Text = "/I8A Slave Tx Request Not Active" ElseIf (StrComp(iPortResp$, "/I8F") = 0) Then

LineBuf$ = ""

End If Wend End Sub

TextBox.Text = "/I8F Invalid iPort/AFM Command"

ElseIf (StrComp(iPortResp$, "/I90 = 0) Then

TextBox.Text = "/I90 iPort/AFM Rx Buffer Overflow”

Else

TextBox.Text = LineBuf$ 'Other Update Display

End If

iPort/AFM Revision Report

This section defines revisions and changes made to the iPort/AFM interface:

Revision: 1.02

1. Initial Release

Revision: 2.00

1. Add Firmware Version Command.

2. Add eXtended Commands.

3. Add Tx bYte Count Command.

Additional Information

For additional information on the I

“The I

C and How to Use It”

C Bus, please refer to the following:

http://www.mcc-us.com/i2chowto.htm

"80C51-Based 8-Bit Microcontroller" Data Handbook. Philips Semiconductors, Tel. (800)227-1817

" I

C Peripherals for Microcontrollers" Data Handbook.

Philips Semiconductors, Tel. (800)227-1817

Micro Computer Control Corporation

PO Box 275, 17 Model Avenue Hopewell, New Jersey 08525 USA Tel: (609)466-1751 Fax: (609)466-4116 WWW: www.mcc-us.com

7/30/2

203.wpd

Software License Agreement

BY INSTALLING THIS SOFTWARE, YOU ARE AGREEING TO BECOME BOUND BY THE TERMS OF THIS AGREEMENT. IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT, PROMPTLY RETURN THE ENTIRE PRODUCT WITHIN 7 DAYS WITH ALL ITS CONTENTS TO THE PLACE OF PURCHASE, WITH A NOTE THAT YOU RETAIN NO COPIES OF THE SOFTWARE OR PRINTED MATERIALS, FOR A FULL REFUND.

The computer files and materials supplied in this package are

non-exclusively licensed to Purchasers of the MCC iPort I Distribution of the MCC iPort Utility Pack software (IMSGCTR.EXE) and any

other computer files supplied as part of the MCC iPort Utility Pack, is strictly limited to employees of the Purchasing Company.

C Host Adapter.

Violation of any of the above provisions automatically terminates the Purchaser's license.

Life Support Applications

MCC Products are not designed for use in life support appliances, devices, or systems where the malfunction of a MCC Product can reasonably be expected to result in a personal injury.

Limited Warranty

MCC warrants, as the sole warranty, that the disks on which the Software is furnished will be free of defects in materials and workmanship under normal use and conditions for a period of thirty (30) days from the date of purchase. No distributor, dealer, or any other entity or person is authorized to expand or alter this Agreement.

MCC does not warrant that the functions contained in the Software will be uninterrupted or error-free. Except as stated above in this paragraph, the Software is provided as is without warranty of any kind either expressed or

implied, included but not limited to the implied warranties of merchantability and fitness for a particular purpose. The Purchaser assumes entire risk as it applies to the quality and performance of the Software. Should the Software prove defective, the Purchaser (and not MCC, authorized MCC distributors, or dealers) assume the entire cost of all necessary servicing, repair or correction.

Limitation of Remedies and Damages

MCC's entire liability and remedy will be the replacement of any disks not meeting MCC "Limited Warranty" explained above.

In no event will MCC be liable for any damages direct, indirect, incidental, or consequential, including damages for lost profits, lost savings, or other incidental or consequential damage arising out of the use or inability to use such Software, even if MCC has been advised of the possibility of such damages or for any claim by any other party. In no event will MCC's liability of damages to the Purchaser or any other person ever exceed the amount of the license fee paid by the Purchaser to use the Software regardless of the form of the claim.

This Agreement is governed by the laws of the State of New Jersey USA (except federal law governs copyrights and registered trademarks.) If a provision of this Agreement is deemed invalid by any court having jurisdiction, that particular provision will be deemed deleted and will not affect the validity of any other provision of this Agreement.

TEL(609)466-1751 FAX (609)466-4116 EMAIL inf o@m cc-us.com For the latest product infor m at ion, application notes,

and visit our Web Site at:

http://www.mcc-us.com

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Appendix A

Interface Connector and Plug Information MCC uses two (2) different connectors and plug assemblies. These parts are all

compatible with one another and are interchangeable. Connectors Molex SEMCONN ACCESS.bus Receptacle Connector

Molex Part # 15-83-0064

AMP SDL (Shielded Data Link) Connectors for ACCESS.bus

AMP Part # 4-943197-1

Plugs Molex SEMCONN ACCESS.bus Plug

Molex Part # 15-83-1564

AMP SDL (Shielded Data Link) Plug for ACCESS.bus

Bush Amp Part # 520851-1 Ferrule Amp Part # 520433-1 SDL (Shell) Amp Part # 520461-1 SDL (Shell) Amp Part # 520460-1 SDL Amp Part # 4-520424-1

Additional Cables Available MCC Part # CAB4 I

MCC Part # CAB8 I MCC Part # CAB16 I MCC Part # CABCL I

C Interface Cable, 48inches (4ft)

C Interface Cable, 96 inches (8ft)

C Interface Cable, 192 inches (16ft)

C and SMBus Clip Lead Cable

MCC Part # AXM-12G 1 Ft. INT-Trigger Cable

SUPER MICRO Computer MIIC-203 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual