4 Replies Latest reply on Oct 26, 2017 4:23 AM by srdr

    FX3 SPI transaction question

    john.redden

       

         

      I have a question on how the FX3 API handles SPI transactions.

              CyU3PSpiTransmitWords    , the master FX3 sends data over MOSI, and also consumes the same amount of data via MISO. Is that MISO data from the slave available to an FX3 application? The     CyU3PSpiReceiveWords     appears to initiate a separate transaction for reading. This implies that the data that had been previously consumed in the Transmit activity would be lost. Or does Receive actually have access to the previous MISO data?   

       

         

      When the FX3 initiates an SPI write via

         

       

         

      Thank you,

         

      JohnR