SPI NRF_ERROR_NOT_SUPPORTED

[Nicolai Kildegaard]

I want to use the pca10001 to communicate as a master to an accelerometer, but when i use the function spi_master_open i get a NRF_ERROR_NOT_SUPPORTED error. I get no clock on sclk when I measure with an oscilloscope.

I have setup the spi as follows:

	spi_master_config_t * spi_acc_config;

spi_acc_config->SPI_Pin_MISO = 	SPI_PSELMISO0;
spi_acc_config->SPI_Pin_MOSI = 	SPI_PSELMOSI0;
spi_acc_config->SPI_Pin_SCK = 	SPI_PSELSCK0;
spi_acc_config->SPI_Pin_SS = 		SPI_PSELSS0;
spi_acc_config->SPI_Freq = 			20000UL;  /**< Slave clock frequency. */
spi_acc_config->SPI_CONFIG_CPHA = 0;
spi_acc_config->SPI_CONFIG_CPOL = 0;
spi_acc_config->SPI_CONFIG_ORDER = 0; //MSB first

uint32_t result = spi_master_open(spi_acc_, spi_acc_config);

if (result == NRF_SUCCESS)
{
	simple_uart_putstring((const uint8_t *)"\n\rSuccess\n\r");
}
else if (result == NRF_ERROR_NOT_SUPPORTED)
{
	simple_uart_putstring((const uint8_t *)"\n\rError not supported\n\r");
}

accelerometer.h accelerometer.c

[Håkon Alseth]

Hi,

Have you defined either "SPI_MASTER_0_ENABLE" or "SPI_MASTER_1_ENABLE" in your project? If none of these are defined, you will get this error code.

Cheers, Håkon

[Nicolai Kildegaard]

Hi

I already tried adding this to my main file and to the accelerometer.h file, but it didn't help. I then defined it directly in the spi_master.h file and this worked. I don't know why this was neccessary, but it worked.