/**@brief Function for initializing SPI slave.
*
* Function configures a SPI slave and sets buffers.
*
* @retval NRF_SUCCESS Initialization successful.
*/
uint32_t spi_slave_example_init(void)
{
uint32_t err_code;
spi_slave_config_t spi_slave_config;
err_code = spi_slave_evt_handler_register(spi_slave_event_handle);
APP_ERROR_CHECK(err_code);
spi_slave_config.pin_miso = SPIS_MISO_PIN;
spi_slave_config.pin_mosi = SPIS_MOSI_PIN;
spi_slave_config.pin_sck = SPIS_SCK_PIN;
spi_slave_config.pin_csn = SPIS_CSN_PIN;
spi_slave_config.mode = SPI_MODE_0;
spi_slave_config.bit_order = SPIM_LSB_FIRST;
spi_slave_config.def_tx_character = DEF_CHARACTER;
spi_slave_config.orc_tx_character = ORC_CHARACTER;
err_code = spi_slave_init(&spi_slave_config);
APP_ERROR_CHECK(err_code);
//Initialize buffers.
spi_slave_buffers_init(m_tx_buf, m_rx_buf, (uint16_t)TX_BUF_SIZE);
//Set buffers.
err_code = spi_slave_buffers_set(m_tx_buf, m_rx_buf, sizeof(m_tx_buf), sizeof(m_rx_buf));
APP_ERROR_CHECK(err_code);
return NRF_SUCCESS;
}
uint32_t spi_slave_example_init(void)
{
uint32_t err_code;
nrf_drv_spis_config_t spis_config = NRF_DRV_SPIS_DEFAULT_CONFIG(SPIS_INSTANCE_NUMBER);
spis_config.miso_pin = SPIS_MISO_PIN;
spis_config.mosi_pin = SPIS_MOSI_PIN;
spis_config.sck_pin = SPIS_SCK_PIN;
spis_config.csn_pin = SPIS_CSN_PIN;
spis_config.mode = NRF_DRV_SPIS_MODE_0;
spis_config.bit_order = NRF_DRV_SPIS_BIT_ORDER_LSB_FIRST;
spis_config.def = DEF_CHARACTER;
spis_config.orc = ORC_CHARACTER;
err_code = nrf_drv_spis_init(&m_spis, &spis_config, spi_slave_event_handle);
APP_ERROR_CHECK(err_code);
//Initialize buffers.
spi_slave_buffers_init(m_tx_buf, m_rx_buf, (uint16_t)TX_BUF_SIZE);
//Set buffers.
err_code = nrf_drv_spis_buffers_set(&m_spis, m_tx_buf, sizeof(m_tx_buf), m_rx_buf, sizeof(m_rx_buf));
APP_ERROR_CHECK(err_code);
return NRF_SUCCESS;
}
