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Altera_Forum's avatar
Altera_Forum
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14 years ago

SGDMA Callback fires more often than i restart the SGDMA

Hi, i have some trouble with SGDMA and TSE. I guess the problem is in the callback function(_ISR_HanderRX) of the RX-SGDMA. Ok let's explain this stuff a little bit: After first init of t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

The Own-By Bit of the second descriptor is cleared, so that shouldn't be the problem.

I also deleted the Software-Reset of the SGDMA. I thought so too, that the SW-Reset isn't necessary.

I also think we found the problem within the TCP/IP Stack. I'll try to set up a second descriptor chain for RX, seems also that one Rx Chain limited the speed extremly. So let's hope for the best.

I'll report if my new idea works.