I have designed an embedded PC using ZF Micro Devices’ ZFx86 System On A Chip and am using Phoenix BIOS 4.0, Release 6.

When I boot my prototype using the Phoenix BIOS in a flash chip, it hangs while executing the POST routines. Specifically, it hangs at POST code 38h – Shadow System BIOS ROM.

I do not know how the SYS SHADOW routine is failing or what it needs to finish successfully, so I am having difficulty troubleshooting the problem.

Can someone provide me with any additional information about this routine so that I can finish the design?

Your assistance is very much appreciated.

Wow, man, sure don't come up with easy ones.... http://www.PCGuide.com/ubb/biggrin.gif

In your BIOS do you have the option to disable shadowing? If so is enabled or disabled? And have you tried the opposite of whatever it currently is?

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mjc
Links list:Computer Links (http://www.dreamwater.org/tech/mjc/index.htm)

Celts are the men that heaven made mad, For all their battles are merry and their songs are all sad.

This may sound like a dumb question, but are you using the Bios that is recommended for this embedded board with, I assume, a cpu "on board"?

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Will XP save Me ?

Unfortunately there is no enable/disable Shadow BIOS in the Phoenix Configuration. Thank you for that suggestion mjc.

The processor chip (ZFx86) is on a BGA and comes with Phoenix BIOS (1 license). I designed the motherboard mimicking the ZF Micro Device's (mfg of the uP) Integration and Development System. (thank you Randy_tx)

I am "BEHIND THE 8 BALL", so to speak, on this project and am in dire need of knowledge/experience beyond my own. Any assistance would be greatly appreciated.

Solved my problem, thanks for your help.