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Altera_Forum's avatar
Altera_Forum
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15 years ago

PCIe freezing

Hi, I have strange problem with PCIe IP. I have a custom board with ArriaGX and PCIe instantiated using MegaCore flow with AvalonST interface. The PCIe works (there are some DMAs running, targe...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi Matthias,

the problem started to appear on fully functional design. I found, that PC with my device freezes time from time. It was running correctly for hours or days until that freeze - there were running loads of read/write access, DMA read/writes without any problem. After some searching I found that in some situation the control software writes lots of data to my device (reconfiguration of control registers) and that in some cases freezes the PC. So I tried to remove as much as possible from my design to find which part could be responsible for this problem, but until now I did not find any part of my design responsible for freezing of the system - I've ended with design that does not transmit anything and the software only writes to my device...

Martin