LSM6DSO pedometer interrupt setting

[JXiao.1]

Hello,

I am using LSM6DSO sensor to do a pedometer. I use the official interrupt signal to control the step update like the following sentence.

int1_route.emb_func_int1.int1_step_detector = PROPERTY_ENABLE;

But I found the interrupt signal always has some delays. When I am moving, sensor will not produce an interrupt signal. After I stop moving for few seconds (about 10 seconds), the sensor will send an interrupt signal.

Is there some settings for this condition?

Thank you.

[Eleon BORLINI]

Hi @JXiao.1​ ,

Are you using the lsm6dso_pedometer.c Github reference code?

And did you set the proper ODR and FS, as stated in the application note AN5192, p.58, of // ODR_XL = 26 Hz, FS_XL = ±4 g?

I suggest you also to enable the False-Positive Rejection and Advanced Detection blocks, as suggested in the code below:

 /* Enable step counter */
 lsm6dso_****_sens_set(&ag_ctx, LSM6DSO_FALSE_STEP_REJ_ADV_MODE);
 emb_sens.step = PROPERTY_ENABLE;
 emb_sens.step_adv = PROPERTY_ENABLE;
 lsm6dso_embedded_sens_set(&ag_ctx, &emb_sens);

-Eleon

[JXiao.1]

Hi Eleon,

I have seen the reference code. But the reference code use while loop instead of interrupt. The while loop will take more power consumption.

The ODR_Xl is set 26 Hz and FS_XL is ​±2g. This is the code for pedometer.

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_****_sens_set(&imu_dev_ctx, LSM6DSO_****_BASE_MODE);
 
lsm6dso_pin_int1_route_get(&imu_dev_ctx, &int1_route);
int1_route.emb_func_int1.int1_step_detector = PROPERTY_ENABLE;
lsm6dso_pin_int1_route_set(&imu_dev_ctx, &int1_route);

I will try your pedometer working mode. Thank you.