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Some data was transmitted via ethernet now: as I said in previous post, sgdma was initialized incorrectly.
But while catching the packets with Wireshark, I see that packets content isn't correct.
Besides that the packet was transmitted only twice (instead of infinite sending), after 2 transmissions code never comes to tx_done++, so it is looped in while(tx_done == 0);
I have attached zip-code of source files.
The only correct information is the source mac (00-11-22-33-44-55)
All other bytes should be 0xA5 (as initialized), but in fact I see such packet:
CC CC A5 A5 CC CC 00 11 22 33 44 55 CC CC A5 A5 CC CC A5 A5 CC CC A5 A5 CC CC
and so on...
Total length is also correct (128 bytes).
I have no ideas, what happens...
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One of the problem is that sgdma descriptor should be constructed before every cycle of transmitting.
So, now I achieved stable tramsmitting of packets by TSE ( in while(1) loop ). The only issue is that packet content is incorrect (only MAC of source is OK )...
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