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Win 95 w/10 PCI devices (frame grabbers) - problems!

Posted on 1998-08-21
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Last Modified: 2010-04-27
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We are using the IBUS XPCI Extended PCI Passive Backplane;  this backplane has 10 PCI slots. We have been trying to get our 8 Frame Grabber boards working under Windows 95 (OSR2).

All the Frame Grabbers are populated in the two Secondary PCI buses. The primary PCI bus does not have any Frame Grabber boards in it. Once Windows is booted into (which takes about 10 minutes!!), we checked the Device Manager to see if the boards were detected by Windows. They were all detected and reported to be working properly. However, when we then tried to access each board, one at a time, with our Windows based program, only three of the eight boards would be accessed. When our Windows Based program tries to access the other five boards the program hangs. Two boards in one Secondary PCI Bus and One board in the second secondary bus work.

I noticed on the Back plane that two DEC PCI-to-PCI Bridge Chips are used. The model of the Bridge chip is 21152-AA

Is anyone aware of compatibility issues with Multiple PCI Bus systems under the Windows 95 OS with this backplane or any other for that matter? Is there a driver that is required for proper initialization of the Bridge Chips to allow for proper handling of PCI cards on the secondary PCI buses?

Your comments on this issue would be greatly appreciated.

TIA
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Question by:sconnell
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Expert Comment

by:rmarotta
ID: 1123419
If you have OSR2, you may need PCI Bridge fix for your PCI bus. (I think Win95C has it.)
Try here for a readme and download:

http://www.windrivers.com/company/intel/default.htm

Regards,
Ralph
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Expert Comment

by:ChrisRobin
ID: 1123420
Are the the grabbers of all the same type (which ones) and are these trying to grab images at the same time (As you can only transmit so much data down the bus) Out of intrest are the images monochrome or colour as there is a work around if you are only using monochrome but may invole new kit so i will not go into that now..

Chris
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Accepted Solution

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ThirdTime earned 70 total points
ID: 1123421
Win95 osr2 wont support these even with the pc bridge fix.
Try win98 thats all i can say.
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