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Instructions

Down Load firmware for Lx/Ls AC source

Requirements

This document provides basic instructions for updating firmware on Lx or Ls series AC power

sources. The following items are required to download new firmware:

• A copy of the new firmware in HEX format. The file may be downloaded from the CI

website or may have been distributed through email. If the file is archived to a zip, it must

be unzipped to it’s original HEX format (.hex extension) before it can be used.

• The FlashLoaderComm utility program. It can be downloaded from the California

Instruments website (

www.calinst.com) under GUI/Software. You need to be a registered

user to do so.

• A Windows 98/NT/2000/XP PC with serial port.

• A RS232

serial cable, CI P/N 250709. This cable is provided in the Lx/Ls Series ship kit.

If lost, a regular straight-thru 9 pin Male to 9 pin Female cable can be used.

Instructions

Copy both FlashLoaderComm.exe and CIC674rn.nn.exe to a temporary folder on your PC. If the

FlashLoaderComm.exe was downloaded from the CI web site, it will have to be installed. This is a

self extracting installation. Just double click on the exe file to perform the installation and follow

the user prompts.

CIC674rn.nn.exe is the hex file that contains the firmware update. The n.nn will be the revision

number of the firmware. The hex file may be distributed as a WinZip archive with a .zip extension.

In that case, unzip the .zip file to it’s native .hex format before attempting to upgrade the Lx/Ls

unit.

Please record the revision of the previous firmware before the update for reference. The firmware

revision is displayed during power up sequence.

1. Connect a straight-through (not a null modem) RS232 cable (9 pin to 9 pin) between the

power source and the com port of the PC.

2. Power up the AC source while holding down the ENTER key on the keyboard. RELEASE

the ENTER key as soon as the first text appears on the LCD display. Do not hold the

ENTER key too long as the unit will revert back to normal operation mode if you do. This will

put the source controller into the Flash down load mode. Wait until the last screen appears

that shows the RS232 setup parameters that are used in the boot loader mode.

3. Open up the Flash Loader utility program “FlashLoaderComm.exe”. This utility is available

from the CI website at

www.calinst.com in the Gui and Drivers download section.

4. Select the COM port. Leave “Baud rate” and “Cmd Delay” without change.

5. Select “Init Port” followed by “FlashUpdate”.

6. Select Browse and locate the file CIC674rn.nn.exe. This file is supplied with this instruction

and should be included in the same directory as FlashLoaderComm.exe file.

7. Select “DownLoad”. This will start the firmware update procedure. The front panel display for

the AC source will display the message “Erasing flash” followed by “Flash erase complete”

and “Programming Flash”. The down load will be completed in about 6 to 7 minutes.

The GPIB interface cannot be used for this purpose, as the Flash boot loader is a small resident

program that does not support GPIB communications.

California Instruments Firmware Update Instructions Page 1 of 1

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Resumo do Conteúdo

Página 1 - Instructions

Instructions Down Load firmware for Lx/Ls AC source Requirements This document provides basic instructions for updating firmware on Lx or Ls series AC

Página 2 - Post Download Issues

Post Download Issues When a revision change takes place several errors may appear at power up, dependent on previous revision. To clear the errors sen

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