4 Replies Latest reply on Feb 11, 2015 1:45 PM by jota_1939431 Branched to a new discussion.

    Very long SPI Transfer on the BCM20737

      I need to perform SPI transfers of more than 16 bytes. As there is no DMA available for that, is there some reliable way to do that on that device. Note that I only uses the MOSI signal. I don't care about the clock or the input signals, but there could be no interruption (almost none) in the data stream. Can it be done ?

       

      Can I simply hook an ISR and perform multiple block transfers without disrupting the BLE stack ? If so, how long can I stay in the ISR before breaking something ?

       

      Thanks,

      Yves