asking help, thank you very much.
I build a project which contain the ETPU channle using DMA. The ETPU channle is treade as Uart communication.I had completed it already and it gone well. But when adding the DMA function, the data can't be transported? I don't know what's wrong with it, so I first look for help here and wish to get a settlement. thank you here again.
（1）initialize the DMA
（2）the main procedure here（without the definition of the variables）：
I need to say the last while circulation which have been deleted the first time , and now the content of the picture is the last precedure.