Hi, I am having trouble getting the Timer to trigger a DMA -> SPI operation. Namely, I want to set the timer up to run,. Then, get every overflow event to trigger the DMA to move a byte into the SPI. The SPI should auto-send. Then, the cycle rep...
Dumb question, can the DMA perform separate, parallel operations with the different channels? For example, could I use the DMA to transmit with the UART and the SPI devices at the same time without one interrupting the other? I'm unclear from readin...
STM32L0 SPI communication with DMA. The SPI CS line is controlled with software. It appears to stay low for about 72uS when the communication only takes about 4uS. Right before setting the DMA to roll, I set the CS to 0. Nothing else is pending for t...
I'm trying to get the SPI communications to a peripheral handled by the DMA. I have reviewed the STM32L0 reference manual, and LL libraries, as well as close examples. I am able to get Tx operation working properly. However, I cannot get Rx to work. ...
@waclawek.jan Question responded in order: STM32L4I am trying to trigger the DMA with TIM6_Up I did not have CSELR set, I do now. As a result, the DMA triggers. I also set the DMA to circular buffer mode (CIRC = 1) and N-bytes to 28 (CNDTR3 = 28). ...
@Sarra.S Are you sure that the transfers can do as I want? Thanks to you and Waclawek.jan, I am able to get the DMA to trigger, as caused by TIM6 UEV occurrence. Will the DMA in circular buffer mode with N-bytes (CNDTR3 = N-bytes arbitrary number...
