DIGITAL-LOGIC AG PCCP5 Manual V2.3
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4.7.1 VGA- BIOS Download Function
The BIOS for the VGA must be downloaded, before a LCD is connected. This could be also a new LCD- dis-
play, which needs a corresponding VGA- BIOS.
How to download a VGA- BIOS:
1. Restart the system with the SHADOW enabled (if available) and no EMM386 loaded.
2. Check, if you find the DOWN_xxx.EXE and the *.V40 / *.000 files on your disk, to get downloaded.
3. Refer to the VGABIOS.DOC for more information about the VGABIOS files.
4. Insert the floppydisk with the program DOWN_xxx.EXE and all VGA-Drivers.
5. Start DOWN_xxx.EXE.
6. Check, if the DOWN program has identified the product and the shadow correctly.
7. Select the function PROGRAMM VGA- BIOS.
8. Select the VGA- BIOS out of the proposed file list (UP/DOWN arrows) and press ENTER.
9. Check, if the new VGA- header is displayed on the VGA- INFO- screen.
10. After proceeding, switch off the power and restart the board (cold start).
If the download does not work:
- Check, if no EMM386 is loaded.
- Check, if no peripheral card is in the system, which occupies the same memory range. Disconnect this
card.
- If the download is stopped or not completed, make only a warm boot and repeat the steps or download
another file. As the video is may shadowed, everything is visible and a cold boot would clear the screen
and nothing would be visible afterwards.
If the screen flickers or is misaligned after reboot:
- The previously loaded VGA- BIOS is not corresponding 100% or works only on the LCD properly.
If the screen is dark after the reboot of the system:
- A new system BIOS must be programmed. Ask DIGITAL-LOGIC AG for the binary file.
If the previous version is still programmed:
- Switch off the board and do not make a warm boot due to the fact that the data may are still stored in the
memory shadow.
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