8 Replies Latest reply on Mar 3, 2016 6:09 AM by JoMe_264151

    SCB SPI and non SCB SPI modules have different behaviour

      Hi all,


      We have a different behaviour of the Cypress SPI modules on different Cypress CPUs.
      When we use the SPI Slave non SCB (UDB?) based, version 2.70 on a CY8C4247LQI-BL483 we do receive SPI frames
      from a Renesas controller, means the buffersize remains 0,
      but when we change to CYBL10563-56LQXI we can only use the SCB based SPI module version 3.0 and
      do not receive any frames with this component.
      We use mode Slave and submode Motorola, with SCLK mode CPHA=1 and CPOL=0, Oversampling=8,
      RX/TX data bits=8, MSB First, Number of SS:1, Active Low, with a FIFO Buffer size of 8 bytes. The datarate is 1kHz.


      And the SCB SPI component has no rx/tx interrupt? Only an SPI_Done status and the various FIFO status and the buffer size?


      Has anyone an idea why the modules are so different?


      Thanks a lot and best regards