Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

TSE and scatter-gather dma problem

hi, everyone I am recently trying to connect nios II to computor through ethernet , I separately connected a memory to stream scatter gather DMA to TSE's transmit and a stream to memory scatter g...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

2) it depends on your code. When using asynchronous transfers you must be very careful with synchronization, you mustn't modify the descriptor before the transfer is finished.

3) it should work also without the alignment. Just check that you are sending a correct Ethernet packet when you don't use the alignment (i.e. without the two padding bytes before the Ethernet header).