I met a strange issue on DLM for BF60x, please help advise.
Processor: ADSP-BF607 0.2
Core0: just run meaningless loop in main for test.
Core1: 1)setup a coretimer run periodically, in its callback func start SPORT2B-tx and SPORT1A-rx with DMA+stop mode, SPORTs are loop back from external connection.
2)in main loop, load dlm repeatedly.
Failure: the SPORT1A is not able to receive the loop back data(the DMA-IRQDONE is not set after long time wait)