Slave example SPI doesn't work

[Martin22]

Hi,

I am trying to use the spi_slave_example on my nordic nrf51822. But i have an issue :

I can build all target and download code to flash memory but nothing happen :

at the begin of the main.c, i placed : nrf_gpio_pin_set(LED_0); to see if the programm is running, but no LED switch on.

On the file nrf6310.h, i have configured the LED pin :

With the debugger :

Did i miss a step ?

[Stefan Birnir Sverrisson]

Hi

What kit are you using and what nRF51 SDK version are you using?

I can see from your image that you are getting a hard fault? How far do you get in your program? The unmodified program should run without hardfault. What have you changed in order to cause the hardfault?

[Martin22]

Thank you for your answer !

I am using the evaluation kit with the nrf51822, the SEGGER 48029673, PCA100001 with the s110_nrf51822_7.1.0_softdevice and Keil v5.

I took the original programm and i have just changed the PIN (LED and SPI) on the nrf6310.h

I have tested the programm with the debugger : i have placed a breakpoint on the top on the main.c main void : my program never run to this point.

The log show this issue :

[Stefan Birnir Sverrisson]

Hi

The spi_slave_example is a hardware peripheral example. It should not be used together with at softdevice. Go to nRFgo Studio, press "Erase All" button and then flash the example, then it should run.

However, you will not see anything happen on the SPI unless you connect a SPI master. If you have another board, you can use that with the spi_master_example_with_spi_slave example and connect the boards together.

I see that you are changing the LED and button mappings to match with the evaluation kit. It should work. However, there is an easier way to do this, see this thread.