AnsweredAssumed Answered

SPI bi-direction DMA

Question asked by yli on Jun 27, 2014
Latest reply on Jul 2, 2014 by MaheshN



I understand that there is only one DMA channel on the 214xx SPI. My question is, can I flip the DMA direction in the ISR and let the DMA alternate between transmitting and receiving? Will there be penalty or latency associated with flipping the DMA direction?


I am using SPIB in slave mode, if it matters.