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AuthorTopic: What's the difference between Algor and Deneb?  (Read 1450 times)

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Offline mboehmer_e3b

Re: What's the difference between Algor and Deneb?
« Reply #15 on: August 27, 2008, 09:04:09 AM »
Quote

So not even the zorro slots on the mediator bus boards will do dma??
 
This is just too increadible, is my piv zorro dma able? And if so how can i know?


No, sorry, this was misleading. The Zorro III slots on this busboard should support all DMA signals, and DMA should work.
The only thing I know up to now is that we have users with Mediator 4000D(i) and failures in DMA, while PIO is running.

The 4000D busboard uses a CPLD to handle DMA signals for all seven slots, while buster provides only 5 DMA channels, so this may be part of the problem.

As long as we don't have such a busboard available for testing I cannot make any conclusions on the real cause of these failures, and I cannot make any attempt to fix this in the DENEB firmware.

Regarding PIV DMA: no, it is a PIO only card.

Michael
 

Offline arnljot

Re: What's the difference between Algor and Deneb?
« Reply #16 on: August 27, 2008, 09:16:00 AM »
@mboehmer_e3b

Thank you for clarifying that. Good to know :)
A posting a day keeps the sanity away...
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