User`s guide

AT2LP DDK board User’s Guide

Converting AT2 EEPROM files to AT2LP format

Introduction

To further aid the transition from the AT2 to the AT2LP, Cypress has developed a simple tool

that will convert the EEPROM configuration files used with the AT2 into a format that can be

used with the AT2LP manufacturing software. The AT2 configuration files are text files with

a "W56" extension. The AT2LP configuration files are hex files with an "IIC" extension. The

CfgToI2C application reads the W56 files and converts them into IIC format.

User Interface

The application's user interface is simple and intuitive. The top field displays the W56 file that

will be converted to IIC format. The bottom field displays the location into which the newly

converted IIC file will be placed. The "Convert" button launches the conversion process. The

source and destination paths can be manually entered, or the "Browse..." button can be used to

open a browser window through which the paths can be chosen.

The CfgToI2C application can read several different file types, so care should be taken to

ensure that the W56 type is selected in the drop-down menu in the browser window.

Once the W56 configuration file has been converted to the IIC format, it can be used with the

AT2LP manufacturing software. Note, however, that the converted file will still follow the

format specified in the AT2 datasheet, rather than what is listed in the AT2LP datasheet.

EEPROM settings

Many major functions of the AT2LP are controlled by EEPROM settings. To modify the

EEPROM settings, run the AT2LPBlaster.exe program.

If an EEPROM configuration prevents the AT2LP board from enumerating, follow this

procedure to get the board into manufacturing mode:

1. Turn off the power

2. Unplug the 40-pin connector and any CompactFlash that is installed

3. Short pins 1-3 of the ATA connector with a jumper block