I have been using SPIS and feeding the TX buffer using DMA. However, the following strange behavior is observed :
This has been confirmed a few times. nothing else is changed in the design/code or the board .....
SPIS mode 0
SPIS tx interrupt is FIFO NOT FULL
DMA drq is set on LEVEL
I apologize, but I will not be able to share the design. if data is missing I will provide it in comments.
What are all the other resources used in the project ? Does the RX DMA work properly ?