Hello,
In my board, nRF52832 is connected to other MCU.
And those two communicates via SPI. nRF52832 is master.
To synchronize two boards, MOSI pin has to be used.
But it seems like I can't write any value to MOSI pin.
Test code is like below.
bool states = 0;
while(1)
{
nrf_gpio_pin_write(PIN_NTM_SPI_MOSI, states);
nrf_gpio_pin_write(PIN_NTM_SPI_SS, states);
nrf_gpio_pin_write(PIN_LED3_ON, states);
nrf_delay_ms(100);
states ^= 1;
}
LED is turned on/off correctly. And I checked that SPI_SS also works fine.
But MOSI pin doesn't work.
Spi is configured like this.
nrf_drv_spi_config_t twi_config_ntm = NRF_DRV_SPI_DEFAULT_CONFIG;
twi_config_ntm.sck_pin = PIN_NTM_SPI_SCLK;
twi_config_ntm.mosi_pin = PIN_NTM_SPI_MOSI;
twi_config_ntm.miso_pin = PIN_NTM_SPI_MISO;
//twi_config_motions.ss_pin = PIN_LSM_SPI_SS;
twi_config_ntm.frequency = NRF_SPI_FREQ_8M;
twi_config_ntm.mode = NRF_DRV_SPI_MODE_0;
twi_config_ntm.bit_order = NRF_DRV_SPI_BIT_ORDER_MSB_FIRST;
twi_config_ntm.irq_priority = APP_IRQ_PRIORITY_LOW;
err_code = nrf_drv_spi_init(&m_spi_ntm, &twi_config_ntm, spi_event_handler1, NULL);
RETURN_IF_ERROR(err_code);
Since other MCU that is connected to nRF is very old and tricky to change SW,
I wish to find a way to write MOSI pin.
