Using SPI master mode (NOT WORKING)

[Angela]

Hi, I'm using a nRF51422+nRF6310 and I need to use SPI in order to connect with some devices. I am trying to run the example "spi_master_example_with_spi_slave" but I found is not working. Apparently is not crashing (is not going to the error handler), the problem is that I cannot see the clock signal ( neither the MISO, MOSI...) in any of the pins. Not only I tried with the appropiate pin but also I tried with all the other pins and I'm not seeing the signal on my oscilloscope. What can be working bad? How can I solve that problem and use my SPI in master mode? I hope you can help me whit the issue, Thanks in advance

[Angela]

Hi, it's SDK v6. I have nothing connected as slave. I just wanted to test the clock signal before to connect the slave device. I didn't change the test in any way. I just run it from reset and I set a breakpoint just before the call to 'nrf_delay_ms' in the 'spi_send_recv' function. In that function the following code is executed:

*//Start transfer.
uint32_t err_code = spi_master_send_recv(SPI_MASTER_HW, p_tx_data, len, p_rx_data, len);
APP_ERROR_CHECK(err_code);*

I check in the debugging mode that the APP_ERROR_CHECK is succesful, so I dont understand why I cannot see any change in the spi lines. Thank for your interest