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A comment on UDP transmitter implemented with PIO and DMA on the RP2040.

Re:UDP transmitter implemented with PIO and DMA on the RP2040 by bibaheu on Thursday May 04, 2023 @04:51AM (#35812819)
It can probably be a bit simplified by using IPv6, as that avoids the IPv4 checksum.
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Re:UDP transmitter implemented with PIO and DMA on the RP2040 by crest on Thursday May 04, 2023 @05:38AM (#35813079)
They still have to compute the Ethernet frame check sequence.
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Re:UDP transmitter implemented with PIO and DMA on the RP2040 by matzf on Thursday May 04, 2023 @07:28AM (#35813794)
No, the checksum just moves to UDP; in the current system, the UDP checksum is set to 0. This is not allowed in UDP/IPv6, where the checksum, calculated over both the IPv6 pseudo-header and the UDP payload, must usually be set.
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