AnsweredAssumed Answered

DMA USB IN endpoint on STM32L476xx?

Question asked by choi.henry on Apr 25, 2016
Latest reply on Apr 25, 2016 by choi.henry
Hello, I just read through the STM32L4x6 reference manual OTG chapter.  I understand that every received packet is multiplexed through 1 RX FIFO, but each outgoing endpoints have dedicated FIFO.  The RX multiplexing makes connecting it to a DMA futile (and indeed, the DMA request mapping section shows that incoming USB packets cannot be mapped to DMA).  But I did not find any paragraph about feeding the USB TX endpoint FIFO from my RAM through DMA.  Could you please point me to a section in the reference manual that shows which peripherals can be fed from my RAM through DMA?

Thank you very much for reading.