hello,
To use twi communication in ble_app_NUS, I configured the program by referring to the twi_sensor example.
As you can see in the source code below, when the BSP_EVENT_KEY_0 event occurs, in void bsp_event_handler(bsp_event_t event)
nrf_drv_twi_tx(&m_twi, TOUCH_ADDR, TWI_reg, sizeof(TWI_reg), false); It was configured to call .
void twi_init (void)
{
ret_code_t err_code;
const nrf_drv_twi_config_t twi_config = {
.scl = I2C_CLK_PIN_NUMBER,
.sda = I2C_DATA_PINNUMBER,
.frequency = NRF_DRV_TWI_FREQ_100K,
.interrupt_priority = APP_IRQ_PRIORITY_HIGH,
.clear_bus_init = false
};
err_code = nrf_drv_twi_init(&m_twi, &twi_config, twi_handler, NULL);
APP_ERROR_CHECK(err_code);
nrf_drv_twi_enable(&m_twi);
}
void bsp_event_handler(bsp_event_t event)
{
uint32_t err_code;
switch (event)
{
case BSP_EVENT_ADVERTISING_STOP :
printf("> BSP_EVENT_ADVERTISING_STOP\r\n");
break;
case BSP_EVENT_KEY_0 :
err_code = nrf_drv_twi_tx(&m_twi, PIC_TOUCH_ADDR, TWI_reg, sizeof(TWI_reg), false);
APP_ERROR_CHECK(err_code);
break;
}
However, when nrf_drv_twi_tx is called, error 0x00000011 occurs and the fault function below is called.
__WEAK void app_error_fault_handler(uint32_t id, uint32_t pc, uint32_t info)
I do not know the cause of error 0x00000011.
