Ingnored Transaction SPI slave on 51822

[rcluze]

Hello,

I tried to use the example of SPI slave with the sdk 10.0. But I have an issue: the character "Ignored Transaction" is send on MISO pin.

I would like to now why these does not work?

In advance, thank you.

[Anders Strand]

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

[Anders Strand]

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.

[rcluze]

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.