forked from Archive/PX4-Autopilot
invensense/icm20602 driver minor improvements
- interupt pin set active low and latch - relax retry timeout if configure failed - improve configured empty rate (sample rate) rounding - fix RegisterCheck
This commit is contained in:
parent
e2d2ae29a9
commit
c4fbea32c1
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@ -45,8 +45,8 @@ ICM20602::ICM20602(I2CSPIBusOption bus_option, int bus, uint32_t device, enum Ro
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SPI(MODULE_NAME, nullptr, bus, device, spi_mode, bus_frequency),
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I2CSPIDriver(MODULE_NAME, px4::device_bus_to_wq(get_device_id()), bus_option, bus),
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_drdy_gpio(drdy_gpio),
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_px4_accel(get_device_id(), ORB_PRIO_VERY_HIGH, rotation),
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_px4_gyro(get_device_id(), ORB_PRIO_VERY_HIGH, rotation)
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_px4_accel(get_device_id(), ORB_PRIO_HIGH, rotation),
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_px4_gyro(get_device_id(), ORB_PRIO_HIGH, rotation)
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{
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set_device_type(DRV_IMU_DEVTYPE_ICM20602);
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@ -131,7 +131,7 @@ void ICM20602::RunImpl()
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RegisterWrite(Register::PWR_MGMT_1, PWR_MGMT_1_BIT::DEVICE_RESET);
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_reset_timestamp = hrt_absolute_time();
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_state = STATE::WAIT_FOR_RESET;
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ScheduleDelayed(100);
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ScheduleDelayed(1_ms);
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break;
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case STATE::WAIT_FOR_RESET:
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@ -148,14 +148,14 @@ void ICM20602::RunImpl()
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} else {
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// RESET not complete
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if (hrt_elapsed_time(&_reset_timestamp) > 10_ms) {
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PX4_ERR("Reset failed, retrying");
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if (hrt_elapsed_time(&_reset_timestamp) > 100_ms) {
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PX4_DEBUG("Reset failed, retrying");
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_state = STATE::RESET;
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ScheduleDelayed(10_ms);
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ScheduleDelayed(100_ms);
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} else {
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PX4_DEBUG("Reset not complete, check again in 1 ms");
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ScheduleDelayed(1_ms);
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PX4_DEBUG("Reset not complete, check again in 10 ms");
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ScheduleDelayed(10_ms);
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}
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}
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@ -181,8 +181,8 @@ void ICM20602::RunImpl()
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} else {
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PX4_DEBUG("Configure failed, retrying");
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// try again in 1 ms
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ScheduleDelayed(1_ms);
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// try again in 10 ms
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ScheduleDelayed(10_ms);
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}
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break;
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@ -209,13 +209,7 @@ void ICM20602::RunImpl()
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// use the time now roughly corresponding with the last sample we'll pull from the FIFO
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timestamp_sample = hrt_absolute_time();
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const uint16_t fifo_count = FIFOReadCount();
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if (fifo_count == 0) {
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failure = true;
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perf_count(_fifo_empty_perf);
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}
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samples = (fifo_count / sizeof(FIFO::DATA) / 2) * 2; // round down to nearest 2
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samples = (fifo_count / sizeof(FIFO::DATA) / SAMPLES_PER_TRANSFER) * SAMPLES_PER_TRANSFER; // round down to nearest
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}
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if (samples > FIFO_MAX_SAMPLES) {
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@ -224,13 +218,17 @@ void ICM20602::RunImpl()
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failure = true;
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FIFOReset();
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} else if (samples >= 2) {
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// require at least 2 samples (we want at least 1 new accel sample per transfer)
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} else if (samples >= SAMPLES_PER_TRANSFER) {
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// require at least SAMPLES_PER_TRANSFER (we want at least 1 new accel sample per transfer)
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if (!FIFORead(timestamp_sample, samples)) {
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failure = true;
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_px4_accel.increase_error_count();
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_px4_gyro.increase_error_count();
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}
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} else if (samples == 0) {
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failure = true;
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perf_count(_fifo_empty_perf);
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}
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if (failure || hrt_elapsed_time(&_last_config_check_timestamp) > 10_ms) {
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@ -258,22 +256,22 @@ void ICM20602::ConfigureAccel()
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switch (ACCEL_FS_SEL) {
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case ACCEL_FS_SEL_2G:
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_px4_accel.set_scale(CONSTANTS_ONE_G / 16384);
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_px4_accel.set_scale(CONSTANTS_ONE_G / 16384.f);
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_px4_accel.set_range(2 * CONSTANTS_ONE_G);
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break;
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case ACCEL_FS_SEL_4G:
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_px4_accel.set_scale(CONSTANTS_ONE_G / 8192);
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_px4_accel.set_scale(CONSTANTS_ONE_G / 8192.f);
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_px4_accel.set_range(4 * CONSTANTS_ONE_G);
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break;
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case ACCEL_FS_SEL_8G:
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_px4_accel.set_scale(CONSTANTS_ONE_G / 4096);
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_px4_accel.set_scale(CONSTANTS_ONE_G / 4096.f);
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_px4_accel.set_range(8 * CONSTANTS_ONE_G);
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break;
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case ACCEL_FS_SEL_16G:
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_px4_accel.set_scale(CONSTANTS_ONE_G / 2048);
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_px4_accel.set_scale(CONSTANTS_ONE_G / 2048.f);
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_px4_accel.set_range(16 * CONSTANTS_ONE_G);
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break;
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}
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@ -285,23 +283,23 @@ void ICM20602::ConfigureGyro()
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switch (FS_SEL) {
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case FS_SEL_250_DPS:
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_px4_gyro.set_scale(math::radians(1.0f / 131.f));
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_px4_gyro.set_scale(math::radians(1.f / 131.f));
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_px4_gyro.set_range(math::radians(250.f));
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break;
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case FS_SEL_500_DPS:
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_px4_gyro.set_scale(math::radians(1.0f / 65.5f));
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_px4_gyro.set_scale(math::radians(1.f / 65.5f));
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_px4_gyro.set_range(math::radians(500.f));
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break;
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case FS_SEL_1000_DPS:
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_px4_gyro.set_scale(math::radians(1.0f / 32.8f));
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_px4_gyro.set_range(math::radians(1000.0f));
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_px4_gyro.set_scale(math::radians(1.f / 32.8f));
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_px4_gyro.set_range(math::radians(1000.f));
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break;
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case FS_SEL_2000_DPS:
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_px4_gyro.set_scale(math::radians(1.0f / 16.4f));
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_px4_gyro.set_range(math::radians(2000.0f));
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_px4_gyro.set_scale(math::radians(1.f / 16.4f));
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_px4_gyro.set_range(math::radians(2000.f));
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break;
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}
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}
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@ -312,19 +310,27 @@ void ICM20602::ConfigureSampleRate(int sample_rate)
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sample_rate = 1000; // default to 1 kHz
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}
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_fifo_empty_interval_us = math::max(((1000000 / sample_rate) / 250) * 250, 250); // round down to nearest 250 us
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_fifo_gyro_samples = math::min(_fifo_empty_interval_us / (1000000 / GYRO_RATE), FIFO_MAX_SAMPLES);
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// round down to nearest FIFO sample dt * SAMPLES_PER_TRANSFER
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const float min_interval = SAMPLES_PER_TRANSFER * FIFO_SAMPLE_DT;
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_fifo_empty_interval_us = math::max(roundf((1e6f / (float)sample_rate) / min_interval) * min_interval, min_interval);
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_fifo_gyro_samples = math::min((float)_fifo_empty_interval_us / (1e6f / GYRO_RATE), (float)FIFO_MAX_SAMPLES);
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// recompute FIFO empty interval (us) with actual gyro sample limit
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_fifo_empty_interval_us = _fifo_gyro_samples * (1000000 / GYRO_RATE);
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_fifo_empty_interval_us = _fifo_gyro_samples * (1e6f / GYRO_RATE);
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_fifo_accel_samples = math::min(_fifo_empty_interval_us / (1000000 / ACCEL_RATE), FIFO_MAX_SAMPLES);
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_fifo_accel_samples = math::min(_fifo_empty_interval_us / (1e6f / ACCEL_RATE), (float)FIFO_MAX_SAMPLES);
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_px4_accel.set_update_rate(1000000 / _fifo_empty_interval_us);
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_px4_gyro.set_update_rate(1000000 / _fifo_empty_interval_us);
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_px4_accel.set_update_rate(1e6f / _fifo_empty_interval_us);
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_px4_gyro.set_update_rate(1e6f / _fifo_empty_interval_us);
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ConfigureFIFOWatermark(_fifo_gyro_samples);
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}
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void ICM20602::ConfigureFIFOWatermark(uint8_t samples)
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{
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// FIFO watermark threshold in number of bytes
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const uint16_t fifo_watermark_threshold = _fifo_gyro_samples * sizeof(FIFO::DATA);
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const uint16_t fifo_watermark_threshold = samples * sizeof(FIFO::DATA);
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for (auto &r : _register_cfg) {
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if (r.reg == Register::FIFO_WM_TH1) {
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@ -360,10 +366,10 @@ int ICM20602::DataReadyInterruptCallback(int irq, void *context, void *arg)
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void ICM20602::DataReady()
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{
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perf_count(_drdy_interval_perf);
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_fifo_watermark_interrupt_timestamp = hrt_absolute_time();
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_fifo_read_samples.store(_fifo_gyro_samples);
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ScheduleNow();
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perf_count(_drdy_interval_perf);
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}
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bool ICM20602::DataReadyInterruptConfigure()
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@ -372,8 +378,8 @@ bool ICM20602::DataReadyInterruptConfigure()
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return false;
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}
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// Setup data ready on rising edge
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return px4_arch_gpiosetevent(_drdy_gpio, true, false, true, &ICM20602::DataReadyInterruptCallback, this) == 0;
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// Setup data ready on falling edge
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return px4_arch_gpiosetevent(_drdy_gpio, false, true, true, &ICM20602::DataReadyInterruptCallback, this) == 0;
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}
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bool ICM20602::DataReadyInterruptDisable()
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@ -391,12 +397,12 @@ bool ICM20602::RegisterCheck(const register_config_t ®_cfg, bool notify)
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const uint8_t reg_value = RegisterRead(reg_cfg.reg);
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if (reg_cfg.set_bits && !(reg_value & reg_cfg.set_bits)) {
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if (reg_cfg.set_bits && ((reg_value & reg_cfg.set_bits) != reg_cfg.set_bits)) {
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PX4_DEBUG("0x%02hhX: 0x%02hhX (0x%02hhX not set)", (uint8_t)reg_cfg.reg, reg_value, reg_cfg.set_bits);
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success = false;
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}
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if (reg_cfg.clear_bits && (reg_value & reg_cfg.clear_bits)) {
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if (reg_cfg.clear_bits && ((reg_value & reg_cfg.clear_bits) != 0)) {
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PX4_DEBUG("0x%02hhX: 0x%02hhX (0x%02hhX not cleared)", (uint8_t)reg_cfg.reg, reg_value, reg_cfg.clear_bits);
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success = false;
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}
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@ -404,13 +410,6 @@ bool ICM20602::RegisterCheck(const register_config_t ®_cfg, bool notify)
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if (!success) {
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RegisterSetAndClearBits(reg_cfg.reg, reg_cfg.set_bits, reg_cfg.clear_bits);
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if (reg_cfg.reg == Register::ACCEL_CONFIG) {
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ConfigureAccel();
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} else if (reg_cfg.reg == Register::GYRO_CONFIG) {
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ConfigureGyro();
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}
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if (notify) {
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perf_count(_bad_register_perf);
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_px4_accel.increase_error_count();
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@ -451,16 +450,6 @@ void ICM20602::RegisterSetAndClearBits(Register reg, uint8_t setbits, uint8_t cl
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RegisterWrite(reg, val);
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}
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void ICM20602::RegisterSetBits(Register reg, uint8_t setbits)
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{
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RegisterSetAndClearBits(reg, setbits, 0);
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}
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void ICM20602::RegisterClearBits(Register reg, uint8_t clearbits)
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{
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RegisterSetAndClearBits(reg, 0, clearbits);
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}
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uint16_t ICM20602::FIFOReadCount()
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{
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// read FIFO count
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@ -516,9 +505,8 @@ void ICM20602::FIFOReset()
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// FIFO_EN: disable FIFO
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RegisterWrite(Register::FIFO_EN, 0);
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// USER_CTRL: disable FIFO and reset all signal paths
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RegisterSetAndClearBits(Register::USER_CTRL, USER_CTRL_BIT::FIFO_RST | USER_CTRL_BIT::SIG_COND_RST,
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USER_CTRL_BIT::FIFO_EN);
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// USER_CTRL: reset FIFO
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RegisterSetAndClearBits(Register::USER_CTRL, USER_CTRL_BIT::FIFO_RST, USER_CTRL_BIT::FIFO_EN);
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// reset while FIFO is disabled
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_fifo_watermark_interrupt_timestamp = 0;
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@ -538,7 +526,8 @@ static bool fifo_accel_equal(const FIFO::DATA &f0, const FIFO::DATA &f1)
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return (memcmp(&f0.ACCEL_XOUT_H, &f1.ACCEL_XOUT_H, 6) == 0);
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}
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bool ICM20602::ProcessAccel(const hrt_abstime ×tamp_sample, const FIFOTransferBuffer &buffer, uint8_t samples)
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bool ICM20602::ProcessAccel(const hrt_abstime ×tamp_sample, const FIFOTransferBuffer &buffer,
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const uint8_t samples)
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{
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PX4Accelerometer::FIFOSample accel;
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accel.timestamp_sample = timestamp_sample;
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@ -549,8 +538,8 @@ bool ICM20602::ProcessAccel(const hrt_abstime ×tamp_sample, const FIFOTrans
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// accel data is doubled in FIFO, but might be shifted
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int accel_first_sample = 1;
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if (samples >= 3) {
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if (fifo_accel_equal(buffer.f[0], buffer.f[1])) {
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if (samples >= 4) {
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if (fifo_accel_equal(buffer.f[0], buffer.f[1]) && fifo_accel_equal(buffer.f[2], buffer.f[3])) {
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// [A0, A1, A2, A3]
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// A0==A1, A2==A3
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accel_first_sample = 1;
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@ -589,7 +578,7 @@ bool ICM20602::ProcessAccel(const hrt_abstime ×tamp_sample, const FIFOTrans
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return !bad_data;
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}
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void ICM20602::ProcessGyro(const hrt_abstime ×tamp_sample, const FIFOTransferBuffer &buffer, uint8_t samples)
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void ICM20602::ProcessGyro(const hrt_abstime ×tamp_sample, const FIFOTransferBuffer &buffer, const uint8_t samples)
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{
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PX4Gyroscope::FIFOSample gyro;
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gyro.timestamp_sample = timestamp_sample;
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@ -613,7 +602,7 @@ void ICM20602::ProcessGyro(const hrt_abstime ×tamp_sample, const FIFOTransf
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_px4_gyro.updateFIFO(gyro);
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}
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bool ICM20602::ProcessTemperature(const FIFOTransferBuffer &buffer, uint8_t samples)
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bool ICM20602::ProcessTemperature(const FIFOTransferBuffer &buffer, const uint8_t samples)
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{
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int16_t temperature[samples];
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@ -76,11 +76,13 @@ protected:
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void custom_method(const BusCLIArguments &cli) override;
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void exit_and_cleanup() override;
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private:
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// Sensor Configuration
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static constexpr uint32_t GYRO_RATE{8000}; // 8 kHz gyro
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static constexpr uint32_t ACCEL_RATE{4000}; // 4 kHz accel
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static constexpr uint32_t FIFO_MAX_SAMPLES{ math::min(FIFO::SIZE / sizeof(FIFO::DATA) + 1, sizeof(PX4Gyroscope::FIFOSample::x) / sizeof(PX4Gyroscope::FIFOSample::x[0]))};
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static constexpr float FIFO_SAMPLE_DT{125.f};
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static constexpr uint32_t SAMPLES_PER_TRANSFER{2}; // ensure at least 1 new accel sample per transfer
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static constexpr float GYRO_RATE{1e6f / FIFO_SAMPLE_DT}; // 8 kHz gyro
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static constexpr float ACCEL_RATE{GYRO_RATE / 2.f}; // 4 kHz accel
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static constexpr uint32_t FIFO_MAX_SAMPLES{math::min(FIFO::SIZE / sizeof(FIFO::DATA), sizeof(PX4Gyroscope::FIFOSample::x) / sizeof(PX4Gyroscope::FIFOSample::x[0]))};
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// Transfer data
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struct FIFOTransferBuffer {
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@ -88,7 +90,7 @@ private:
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FIFO::DATA f[FIFO_MAX_SAMPLES] {};
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};
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// ensure no struct padding
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static_assert(sizeof(FIFOTransferBuffer) == (sizeof(uint8_t) + FIFO_MAX_SAMPLES *sizeof(FIFO::DATA)));
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static_assert(sizeof(FIFOTransferBuffer) == (1 + FIFO_MAX_SAMPLES *sizeof(FIFO::DATA)));
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struct register_config_t {
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Register reg;
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@ -102,6 +104,7 @@ private:
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void ConfigureAccel();
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void ConfigureGyro();
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void ConfigureSampleRate(int sample_rate);
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void ConfigureFIFOWatermark(uint8_t samples);
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static int DataReadyInterruptCallback(int irq, void *context, void *arg);
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void DataReady();
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@ -113,16 +116,16 @@ private:
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uint8_t RegisterRead(Register reg);
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void RegisterWrite(Register reg, uint8_t value);
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void RegisterSetAndClearBits(Register reg, uint8_t setbits, uint8_t clearbits);
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void RegisterSetBits(Register reg, uint8_t setbits);
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void RegisterClearBits(Register reg, uint8_t clearbits);
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void RegisterSetBits(Register reg, uint8_t setbits) { RegisterSetAndClearBits(reg, setbits, 0); }
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void RegisterClearBits(Register reg, uint8_t clearbits) { RegisterSetAndClearBits(reg, 0, clearbits); }
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uint16_t FIFOReadCount();
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bool FIFORead(const hrt_abstime ×tamp_sample, uint16_t samples);
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void FIFOReset();
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bool ProcessAccel(const hrt_abstime ×tamp_sample, const FIFOTransferBuffer &buffer, uint8_t samples);
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void ProcessGyro(const hrt_abstime ×tamp_sample, const FIFOTransferBuffer &buffer, uint8_t samples);
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bool ProcessTemperature(const FIFOTransferBuffer &buffer, uint8_t samples);
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bool ProcessAccel(const hrt_abstime ×tamp_sample, const FIFOTransferBuffer &buffer, const uint8_t samples);
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void ProcessGyro(const hrt_abstime ×tamp_sample, const FIFOTransferBuffer &buffer, const uint8_t samples);
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bool ProcessTemperature(const FIFOTransferBuffer &buffer, const uint8_t samples);
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const spi_drdy_gpio_t _drdy_gpio;
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@ -144,7 +147,6 @@ private:
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px4::atomic<uint8_t> _fifo_read_samples{0};
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bool _data_ready_interrupt_enabled{false};
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uint8_t _checked_register{0};
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enum class STATE : uint8_t {
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RESET,
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@ -155,11 +157,12 @@ private:
|
|||
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||||
STATE _state{STATE::RESET};
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||||
uint16_t _fifo_empty_interval_us{1000}; // 1000 us / 1000 Hz transfer interval
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||||
uint16_t _fifo_empty_interval_us{1000}; // default 1000 us / 1000 Hz transfer interval
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||||
uint8_t _fifo_gyro_samples{static_cast<uint8_t>(_fifo_empty_interval_us / (1000000 / GYRO_RATE))};
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||||
uint8_t _fifo_accel_samples{static_cast<uint8_t>(_fifo_empty_interval_us / (1000000 / ACCEL_RATE))};
|
||||
|
||||
static constexpr uint8_t size_register_cfg{11};
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||||
uint8_t _checked_register{0};
|
||||
static constexpr uint8_t size_register_cfg{12};
|
||||
register_config_t _register_cfg[size_register_cfg] {
|
||||
// Register | Set bits, Clear bits
|
||||
{ Register::PWR_MGMT_1, PWR_MGMT_1_BIT::CLKSEL_0, PWR_MGMT_1_BIT::DEVICE_RESET | PWR_MGMT_1_BIT::SLEEP },
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@ -167,11 +170,12 @@ private:
|
|||
{ Register::ACCEL_CONFIG, ACCEL_CONFIG_BIT::ACCEL_FS_SEL_16G, 0 },
|
||||
{ Register::ACCEL_CONFIG2, ACCEL_CONFIG2_BIT::ACCEL_FCHOICE_B_BYPASS_DLPF, 0 },
|
||||
{ Register::GYRO_CONFIG, GYRO_CONFIG_BIT::FS_SEL_2000_DPS, GYRO_CONFIG_BIT::FCHOICE_B_8KHZ_BYPASS_DLPF },
|
||||
{ Register::CONFIG, CONFIG_BIT::DLPF_CFG_BYPASS_DLPF_8KHZ, Bit7 | CONFIG_BIT::FIFO_MODE },
|
||||
{ Register::CONFIG, CONFIG_BIT::FIFO_MODE | CONFIG_BIT::DLPF_CFG_BYPASS_DLPF_8KHZ, Bit7 },
|
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{ Register::FIFO_WM_TH1, 0, 0 }, // FIFO_WM_TH[9:8]
|
||||
{ Register::FIFO_WM_TH2, 0, 0 }, // FIFO_WM_TH[7:0]
|
||||
{ Register::USER_CTRL, USER_CTRL_BIT::FIFO_EN, 0 },
|
||||
{ Register::USER_CTRL, USER_CTRL_BIT::FIFO_EN, USER_CTRL_BIT::FIFO_RST | USER_CTRL_BIT::SIG_COND_RST },
|
||||
{ Register::FIFO_EN, FIFO_EN_BIT::GYRO_FIFO_EN | FIFO_EN_BIT::ACCEL_FIFO_EN, 0 },
|
||||
{ Register::INT_PIN_CFG, INT_PIN_CFG_BIT::INT_LEVEL | INT_PIN_CFG_BIT::LATCH_INT_EN | INT_PIN_CFG_BIT::INT_RD_CLEAR, 0 },
|
||||
{ Register::INT_ENABLE, 0, INT_ENABLE_BIT::DATA_RDY_INT_EN }
|
||||
};
|
||||
};
|
||||
|
|
|
@ -70,6 +70,7 @@ enum class Register : uint8_t {
|
|||
|
||||
FIFO_EN = 0x23,
|
||||
|
||||
INT_PIN_CFG = 0x37,
|
||||
INT_ENABLE = 0x38,
|
||||
|
||||
TEMP_OUT_H = 0x41,
|
||||
|
@ -128,6 +129,14 @@ enum FIFO_EN_BIT : uint8_t {
|
|||
ACCEL_FIFO_EN = Bit3,
|
||||
};
|
||||
|
||||
// INT_PIN_CFG
|
||||
enum INT_PIN_CFG_BIT : uint8_t {
|
||||
INT_LEVEL = Bit7,
|
||||
|
||||
LATCH_INT_EN = Bit5,
|
||||
INT_RD_CLEAR = Bit4,
|
||||
};
|
||||
|
||||
// INT_ENABLE
|
||||
enum INT_ENABLE_BIT : uint8_t {
|
||||
FIFO_OFLOW_EN = Bit4,
|
||||
|
|
Loading…
Reference in New Issue