nrf52811 in SPI slave mode

[PRAVIN_@yash]

Hello Team,

i have created a custom board of nrf52811 Soc and want to use  nrf52811 in slave mode with STM32 SPI masater.

i have created pinctrl.dtsi and dts file as per below images. is this a correct way to configure SPI0 in salve mode?

I am using nrf connect SDK version 2.5.2

i have questions about:

1. CS pin whether i can use cs pin in pinctrl file or i have to use it as a gpio? if yes how to configure it (GPIO PIN or GPIOTE pin) 

2. how to enable interrupt in spi slave mode to detect master has sent data

Any guidance, is greatly appreciated.

[PRAVIN_@yash]

Hi 

i added &uicr in my devicetree but still the control not comes to spi_slave_write_test_msg() function

signaled value is 0 always

did i configure  pinctrl.dtsi file  correct?

did you find anything wrong in code ?

[Jørgen Holmefjord]

Can you upload your generated devicetree file (build/zephyr/zephyr.dts)? This should show if the pin configs are included correctly in the project.

Did you check the pins with a logic analyzer/scope, to see if some/all pins are toggling as expected? If CS/SCK/MOSI toggles correctly, is there any response from the slave on the MISO pin?