SPI master doesn't call spi_event_handler when transferred.

[Mikhail]

Hi!

I made same code for SDK15 and it works. Now I want to rebuild project on the new SDK17.0.2 and same part of code doesn't work with SPI master.

For notice- doesn't work native example 

...examples\peripheral\spi\

And I made on the my project all settings like it was on SDK15 and can't call interrupt spi_event_handler.

my settings:

#define SPI_INSTANCE  0 /**< SPI instance index. */
static const nrf_drv_spi_t spi = NRF_DRV_SPI_INSTANCE(SPI_INSTANCE);  /**< SPI instance. */
static volatile bool spi_xfer_done;  /**< Flag used to indicate that SPI instance completed the transfer. */

void spi_event_handler(nrf_drv_spi_evt_t const * p_event,
                       void *                    p_context)
{
    spi_xfer_done = true;
//    NRF_LOG_INFO("Transfer completed.");
    if (m_rx_buf[0] != 0)
    {
        NRF_LOG_INFO(" Received:");
//        NRF_LOG_HEXDUMP_INFO(m_rx_buf, strlen((const char *)m_rx_buf));
    }
}

static __INLINE uint8_t lis3dh_spi_read_write(const uint8_t reg, const uint8_t data)
{
//	uint8_t rx_buffer[2], tx_buffer[] = { reg, data };
    m_tx_buf [0] = reg;
    m_tx_buf [1] = data;
    
    spi_xfer_done = false;
    
    APP_ERROR_CHECK(nrf_drv_spi_transfer(&spi, m_tx_buf, m_length, m_rx_buf, m_length));
    
    while (!spi_xfer_done)
    {
        __WFE();
    }
	return m_rx_buf[1];
}

uint8_t lis3dh_read(const uint8_t reg) 
{		
	return lis3dh_spi_read_write(reg | LIS3DH_READ_MSK, 0xAA);	
}

void lis3dh_write(const uint8_t reg, const uint8_t data) 
{
	lis3dh_spi_read_write(reg | LIS3DH_WRITE_MSK, data);	
}
    
void lis3dh_init(void)
{
    nrf_drv_spi_config_t spi_config = NRF_DRV_SPI_DEFAULT_CONFIG;
    spi_config.ss_pin   = 7;
    spi_config.miso_pin = 8;
    spi_config.mosi_pin = 9;
    spi_config.sck_pin  = 10;

    APP_ERROR_CHECK(nrf_drv_spi_init(&spi, &spi_config, spi_event_handler, NULL));

	lis3dh_write(CTRL_REG1, 0x2F); 		
}

What I make wrong?

[Simonr]

That's strange indeed. Maybe you have set the NFC pins as GPIOs already in your SDK 15 project?

If you add the preprocessor define CONFIG_NFCT_PINS_AS_GPIOS (under preprocessor definitions in your project settings) you should be able to use these NFC pins as normal GPIOs.

Best regards,

Simon

[Mikhail]

Ok, how can I check use I NFC or no?

[Simonr]

Go into your preprocessor definitions in your project settings and add the CONFIG_NFCT_PINS_AS_GPIOS in order to use these pins as GPIOs instead of NFC pins.

Best regards,

Simon

[Mikhail]

Do you mean, add here

define string

CONFIG_NFCT_PINS_AS_GPIOS 

?

[Simonr]

Yes, that's the correct place to add this config in a Keil µvision project.

Best regards,

Simon

[Mikhail]

I checked. It works! Now I able to got breakpoint on the spi_event_handler()

Should I insert this define also in the SDK15 despite it works on it?