Reboot and stuck in the LSM6DSO

[JXiao.1]

I am using LSM6DSO sensor to get step and two interrupts. When the sensor runs about 15 minutes, it will stop working and have no reaction. Sometimes it will reboot and the step reset to zero.

This is my code for initializing the sensor, is there something wrong or I need to add something?

{
	lsm6dso_device_id_get(&imu_dev_ctx, &whoamI);
	if(whoamI != LSM6DSO_ID)
		return false;
 
	lsm6dso_reset_set(&imu_dev_ctx, PROPERTY_ENABLE);
	do
	{
		lsm6dso_reset_get(&imu_dev_ctx, &rst);
	}while(rst);
 
	lsm6dso_i3c_disable_set(&imu_dev_ctx, LSM6DSO_I3C_DISABLE);
 
	lsm6dso_xl_full_scale_set(&imu_dev_ctx, LSM6DSO_2g);
	lsm6dso_gy_full_scale_set(&imu_dev_ctx, LSM6DSO_250dps);
	lsm6dso_block_data_update_set(&imu_dev_ctx, PROPERTY_ENABLE);
 
	lsm6dso_fifo_watermark_set(&imu_dev_ctx, PATTERN_LEN);
	lsm6dso_fifo_stop_on_wtm_set(&imu_dev_ctx, PROPERTY_ENABLE);
 
	lsm6dso_fifo_mode_set(&imu_dev_ctx, LSM6DSO_STREAM_TO_FIFO_MODE);
 
	lsm6dso_fifo_xl_batch_set(&imu_dev_ctx, LSM6DSO_XL_BATCHED_AT_104Hz);
	lsm6dso_fifo_gy_batch_set(&imu_dev_ctx, LSM6DSO_GY_BATCHED_AT_104Hz);
 
	lsm6dso_xl_data_rate_set(&imu_dev_ctx, LSM6DSO_XL_ODR_104Hz);
	lsm6dso_gy_data_rate_set(&imu_dev_ctx, LSM6DSO_GY_ODR_104Hz);
 
	lsm6dso_xl_power_mode_set(&imu_dev_ctx, LSM6DSO_LOW_NORMAL_POWER_MD);
 
	lsm6dso_tap_detection_on_z_set(&imu_dev_ctx, PROPERTY_ENABLE);
	lsm6dso_tap_detection_on_y_set(&imu_dev_ctx, PROPERTY_ENABLE);
	lsm6dso_tap_detection_on_x_set(&imu_dev_ctx, PROPERTY_ENABLE);
 
	lsm6dso_tap_threshold_x_set(&imu_dev_ctx, 0x12);
	lsm6dso_tap_threshold_y_set(&imu_dev_ctx, 0x12);
	lsm6dso_tap_threshold_z_set(&imu_dev_ctx, 0x12);
 
	lsm6dso_tap_quiet_set(&imu_dev_ctx, 0x03);
	lsm6dso_tap_shock_set(&imu_dev_ctx, 0x03);
 
	lsm6dso_tap_mode_set(&imu_dev_ctx, LSM6DSO_ONLY_SINGLE);
 
	lsm6dso_****_sens_set(&imu_dev_ctx, LSM6DSO_****_BASE_MODE);
 
	lsm6dso_int_notification_set(&imu_dev_ctx, LSM6DSO_BASE_PULSED_EMB_LATCHED);
 
	lsm6dso_long_cnt_int_value_set(&imu_dev_ctx, 0x0000U);
	lsm6dso_fsm_start_address_set(&imu_dev_ctx, LSM6DSO_START_FSM_ADD);
	lsm6dso_fsm_number_of_programs_set(&imu_dev_ctx, 2);
 
	lsm6dso_fsm_enable_get(&imu_dev_ctx, &fsm_enable);
	fsm_enable.fsm_enable_a.fsm1_en = PROPERTY_ENABLE;
	fsm_enable.fsm_enable_a.fsm2_en = PROPERTY_ENABLE;
	lsm6dso_fsm_enable_set(&imu_dev_ctx, &fsm_enable);
 
	lsm6dso_fsm_data_rate_set(&imu_dev_ctx, LSM6DSO_ODR_FSM_26Hz);
 
	fsm_addr = LSM6DSO_START_FSM_ADD;
 
	lsm6dso_ln_pg_write(&imu_dev_ctx, fsm_addr, (uint8_t*)lsm6so_prg_wrist_tilt,
 sizeof(lsm6so_prg_wrist_tilt));
	fsm_addr += sizeof(lsm6so_prg_wrist_tilt);
 
	lsm6dso_ln_pg_write(&imu_dev_ctx, fsm_addr, (uint8_t*)falltrigger,
 sizeof(falltrigger));
 
	/* route single tap, wrist tilt to INT2 pin*/
	lsm6dso_pin_int2_route_get(&imu_dev_ctx, &int2_route);
	int2_route.md2_cfg.int2_single_tap = PROPERTY_ENABLE;
	//int2_route.fsm_int2_a.int2_fsm1 = PROPERTY_ENABLE;
	lsm6dso_pin_int2_route_set(&imu_dev_ctx, &int2_route);
 
	/* route step counter to INT1 pin*/
	lsm6dso_pin_int1_route_get(&imu_dev_ctx, &int1_route);
	int1_route.emb_func_int1.int1_step_detector = PROPERTY_ENABLE;
	int1_route.fsm_int1_a.int1_fsm1 = PROPERTY_ENABLE;
	lsm6dso_pin_int1_route_set(&imu_dev_ctx, &int1_route);
 
	lsm6dso_timestamp_set(&imu_dev_ctx, 1);
}

[JXiao.1]

And I also read the values in the register, the values are strange. I read the values in LSM6DSO_FIFO_DATA_OUT_L buffer, they are 1310797, 353501276, 0, 0, 0, 0, 0, 0. And it always changes. Which register can be used to read stored steps?

[Eleon BORLINI]

Hi @JXiao.1​ ,

which is the target of your application? I mean how do you combine the three interrupt (the tap one, the step counter one and the third (FSM?)

Did you already check the examples on Github for the step counter (you can try the one without using FIFO--> lsm6dso_pedometer.c), and the other examples (at this link)?

And when you reported that the FIFO content is probably wrong, does it happen only after you application get stuck or also during the 15 minutes of normal operation? Which kind of error does your code return?

-Eleon

[JXiao.1]

Can you tell me some more details? Thank you.

[Eleon BORLINI]

Cannot use the **** word, so the comment cancelled and I had to rewrite it...

[Gdsfs.1]

I am also facing the similar issue while doing this task please guide me the reason about this issue I am waiting for a valid solution.