HI, I am using nrf51822 to communicate with ADT7320,using nRF51822 as the master,and the ADT7320 as the slave.I used the SPI master example,then i want to get temperature from m_rx_data_spi.But when debugging,i always get 0x00.Does that mean that i didn't configure the spi right ?I am using SDK 8.0.0.what shall i do to solve the problem?
Here is my code in main.c:
void spi_master_0_event_handler(spi_master_evt_t spi_master_evt)
{ uint32_t err_code = NRF_SUCCESS; //bool result = false;
switch (spi_master_evt.evt_type)
{
case SPI_MASTER_EVT_TRANSFER_COMPLETED:
// Check if received data is correct.
//result = check_buf_equal(m_tx_data_spi, m_rx_data_spi, TX_RX_MSG_LENGTH);
//APP_ERROR_CHECK_BOOL(result);
// Close SPI master.
spi_master_close(SPI_MASTER_0);
err_code = bsp_indication_set(BSP_INDICATE_RCV_OK);
APP_ERROR_CHECK(err_code);
m_transfer_completed = true;
break;
default:
// No implementation needed.
break;
}
}
static void spi_master_init(spi_master_hw_instance_t spi_master_instance, spi_master_event_handler_t spi_master_event_handler, const bool lsb) { uint32_t err_code = NRF_SUCCESS;
// Configure SPI master.
spi_master_config_t spi_config = SPI_MASTER_INIT_DEFAULT;
switch (spi_master_instance)
{
#ifdef SPI_MASTER_0_ENABLE
case SPI_MASTER_0:
{
spi_config.SPI_Pin_SCK = SPIM0_SCK_PIN;
spi_config.SPI_Pin_MISO = SPIM0_MISO_PIN;
spi_config.SPI_Pin_MOSI = SPIM0_MOSI_PIN;
spi_config.SPI_Pin_SS = SPIM0_SS_PIN;
}
break;
#endif /* SPI_MASTER_0_ENABLE */
#ifdef SPI_MASTER_1_ENABLE
case SPI_MASTER_1:
{
spi_config.SPI_Pin_SCK = SPIM1_SCK_PIN;
spi_config.SPI_Pin_MISO = SPIM1_MISO_PIN;
spi_config.SPI_Pin_MOSI = SPIM1_MOSI_PIN;
spi_config.SPI_Pin_SS = SPIM1_SS_PIN;
}
break;
#endif /* SPI_MASTER_1_ENABLE */
default:
break;
}
spi_config.SPI_CONFIG_ORDER = (lsb ? SPI_CONFIG_ORDER_LsbFirst : SPI_CONFIG_ORDER_MsbFirst);
err_code = spi_master_open(spi_master_instance, &spi_config);
APP_ERROR_CHECK(err_code);
// Register event handler for SPI master.
spi_master_evt_handler_reg(spi_master_instance, spi_master_event_handler);
}
int main(void) {
// Setup bsp module.
spi_master_init(SPI_MASTER_0, spi_master_0_event_handler, false);
for (;; )
{
//switch_state();
if (m_transfer_completed)
{
m_transfer_completed = false;
m_tx_data_spi[0] = 0x50;
uint32_t err_code = spi_master_send_recv(SPI_MASTER_0, m_tx_data_spi, 1, m_rx_data_spi, 2);
APP_ERROR_CHECK(err_code);
}
}
}
