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Altera_Forum
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14 years ago

tse (Triple speed ethernet) and SGDMA (Scatter Gather DMA) do not seem fully connecte

So I've searched, and nothing seems to quite fit my case. I am using SGDMA and TSE with InterNiche Portable TCp/IP v3.1 and Simple Socket Server demo and Altera 10.0 (or very close, maybe 10.1)...
Altera_Forum's avatar
Altera_Forum
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14 years ago

Update - indeed I was using a sof file which had the sgdma hooked to 'packet memory' and not DDR. For 'fun' I hacked in the debugger many of the packet mallocs into the packet memory (instead of DDR), and thus managed to get ip.c to panic with a 'not interrupt safe buffer'.

Unfortunately, when I try to run the same program using my supposedly-correct sof which ties DDR to the sgdma which is associated with the tse --- the program never seems to get out of _start.

When my hardware guy gets in tomorrow I'm going to try to get his most recent (or at least a better) version... Will report back here when I get it working, but for now it looks like Daixiwen was spot on - my descriptors (which were in the right place) were pointing to memory in the wrong place.

Rusty