Hi, I have use nrf driver_ext / LIS2DH12 sensor driver to read accelerometer data
I can able to link the driver with nrf_twi_sensor and nrf_twi_mngr code.
I can able to read the WHO_AM_I
but the lis2dh12_data_read() is not working properly for me .
How to config the sensor . is there and example code available to read the LIS2DH12 raw data.
i have used these lined in the code.
void acc_print_data()
{
ret_code_t err_code;
// lis2dh12_data_t m_sample;
err_code = lis2dh12_data_read(&m_lis2dh12, 0x00, m_sample, LIS2DH12_MIN_QUEUE_SIZE);
APP_ERROR_CHECK(err_code);
for (uint8_t i = 0; i < LIS2DH12_MIN_QUEUE_SIZE; i++)
NRF_LOG_INFO("%d %d %d", m_sample[i].x, m_sample[i].y, m_sample[i].z);
}
int main(void)
{
ret_code_t err_code;
log_init();
bsp_board_init(BSP_INIT_LEDS);
lfclk_config();
bsp_config();
err_code = nrf_pwr_mgmt_init();
APP_ERROR_CHECK(err_code);
NRF_LOG_RAW_INFO("\r\nTWI master example started. \r\n");
NRF_LOG_FLUSH();
twi_config();
err_code = lis2dh12_init(&m_lis2dh12);
APP_ERROR_CHECK(err_code);
// data acquisition configuration: 10HZ sample rate, low power mode, x axis, y axis, z axis, values in range -2g <-> +2g, disable high resolution mode (in this case step size is 256)
LIS2DH12_DATA_CFG(m_lis2dh12, LIS2DH12_ODR_10HZ, true, true, true, true, LIS2DH12_SCALE_2G, 0);
err_code = lis2dh12_cfg_commit(&m_lis2dh12);
APP_ERROR_CHECK(err_code);
acc_print_data();
// FIFO configuration: enable FIFO, streaming mode, int1 pin used, 32 values watermark
LIS2DH12_FIFO_CFG(m_lis2dh12, 1, LIS2DH12_STREAM, 0, LIS2DH12_MIN_QUEUE_SIZE);
err_code = lis2dh12_cfg_commit(&m_lis2dh12);
APP_ERROR_CHECK(err_code);
while (true)
{
//nrf_pwr_mgmt_run();
// avoid accessing the registers to fast, value arbitrarily chosen
nrf_delay_ms(1000);
err_code = lis2dh12_who_am_i_read(&m_lis2dh12, print_identity, &m_data);
APP_ERROR_CHECK(err_code);
// debug: check FIFO_SRC register to see the FSS value rise
//err_code = lis2dh12_fifo_src_read(&m_lis2dh12, 0x00, &m_data);
//APP_ERROR_CHECK(err_code);
//NRF_LOG_INFO("WTM: %d OVN: %d EMPTY: %d FSS: %2d ", (m_data & 0b10000000), (m_data & 0b01000000), (m_data & 0b00100000), (m_data & 0b0001111));
//// do not try to access FIFO values if watermark was not reached yet
//if (!data_available)
// continue;
// collect and print the data
//acc_print_data();
// "reset" interrupt
//data_available = 0;
//nrf_drv_gpiote_out_toggle(PIN_OUT);
// avoid accessing the registers to fast, value arbitrarily chosen
//nrf_delay_ms(500);
// debug: check FIFO_SRC register to see the FSS value rise
//err_code = lis2dh12_fifo_src_read(&m_lis2dh12, 0x00, &m_data);
//APP_ERROR_CHECK(err_code);
//NRF_LOG_INFO("WTM: %d OVN: %d EMPTY: %d FSS: %2d ", (m_data & 0b10000000), (m_data & 0b01000000), (m_data & 0b00100000), (m_data & 0b0001111));
//// do not try to access FIFO values if watermark was not reached yet
//if (!data_available)
// continue;
// collect and print the data
//acc_print_data();
// "reset" interrupt
//data_available = 0;
NRF_LOG_FLUSH();
}
}
