Ingnored Transaction SPI slave on 51822

RE: Ingnored Transaction SPI slave on 51822

rcluze — Wed, 13 Apr 2016 14:05:43 GMT

My SPI master is an STM32 and yes I have seen this thread but it didn't help me. In my case, the callback function is never called and I don't undertstand why. The SPI clock is 83KHz. I have a delay between the CSN selection and the transmition of 1ms.

RE: Ingnored Transaction SPI slave on 51822

Anders Strand — Thu, 07 Apr 2016 14:09:45 GMT

From the SPIS documentation:

The callback handler function will be called after every successful buffer setup and every completed transfer. New buffers must be set by calling nrf_drv_spis_buffers_set after every finished transaction. Otherwise, the transaction is ignored, and the default character is clocked out.

RE: Ingnored Transaction SPI slave on 51822

Anders Strand — Thu, 07 Apr 2016 13:57:28 GMT

What device is the SPI master? Have you seen this thread?