lis2ds12 Bypass to FIFO/Stream example

[ATemp.1]

My test:

I want to set up the FIFO for bypass->stream, and then just move (shouldn't have to be a violent shake) the PCB that has the lis2ds12 on it and see the FIFO have data.

I'm only able to detect violent shaking... could you please advise / suggest more sensitive settings?

Right now it only (KIND OF) works if I leave datarate set to ```c

 /* Set XL Output Data Rate */

 lis2ds12_xl_data_rate_set(&dev_ctx, LIS2DS12_XL_ODR_50Hz_HR);

```

In this mode, if I VIOLENTLY SHAKE the lis2ds12, I get data in the FIFO.

If I change this to closer to the settings that I already have working on the other ST chip (lis2dtw12), eg `LIS2DS12_XL_ODR_200Hz_LP` - it doesn't work at all.

My set up is based on the github example here:

https://github.com/STMicroelectronics/STMems_Standard_C_drivers/blob/master/lis2ds12_STdC/examples/lis2ds12_multi_read_fifo.c

Edits:

```c

 lis2ds12_fifo_mode_set(&dev_ctx, LIS2DS12_BYPASS_TO_STREAM_MODE);

```

And then enabled the wakeup functions to be pretty sensitive (i think):

```c

 lis2ds12_wkup_dur_set(&dev_ctx, 0);

 lis2ds12_act_sleep_dur_set(&dev_ctx, 0);

 lis2ds12_wkup_threshold_set(&dev_ctx, 0x01);

```

And then, assuming this works like the LIS2DTW12, I enabled interrupts for wakeup:

```c

 //FIFO Bypass to Continuous Mode MAYBE? (at least on the dtw) requires

 /* Enable activity detection interrupt */

 lis2ds12_pin_int1_route_get(&dev_ctx, &int_route);

 int_route.int1_wu = PROPERTY_ENABLE;

 lis2ds12_pin_int1_route_set(&dev_ctx, int_route);

```

I've also tested w/ a 200Hz data rate (in the HR mode), but same result. If I go from HR to LP, even violent shaking doesn't get me any results... in a different (the lis2DTW part) I am using 200hz with threshold of 2, and it works relatively fine - detects movement w/o needing to violently shake.

[ATemp.1]

I tried ramping up the sample rate to 800Hz_HR just to see if that helps but - no dice, still need to violently shake to trigger the BYPASS -> STREAM to turn start.

Latest code snippet to set up the device:

 /* Restore default configuration */
 lis2ds12_reset_set(&dev_ctx, PROPERTY_ENABLE);
 
 do {
 lis2ds12_reset_get(&dev_ctx, &rst);
 } while (rst);
 
 /* Set XL Output Data Rate */
 lis2ds12_xl_data_rate_set(&dev_ctx, LIS2DS12_XL_ODR_800Hz_HR);
 /* Set 2g full XL scale */
 lis2ds12_xl_full_scale_set(&dev_ctx, LIS2DS12_2g);
 
 /* Configure FIFO */
 lis2ds12_fifo_watermark_set(&dev_ctx, 4);
 /* Set FIFO mode to */
 lis2ds12_fifo_mode_set(&dev_ctx, LIS2DS12_BYPASS_TO_STREAM_MODE);
 
// /* Enable Block Data Update */
// lis2ds12_block_data_update_set(&dev_ctx, PROPERTY_ENABLE);
 
 /* Set wake-up duration:
 * this field is set to 0010b, corresponding to 10 ms (= 2 * 1 / ODR)... but i updated from 2->0 to match dtw */
 lis2ds12_wkup_dur_set(&dev_ctx, 0);
 
 /* Set sleep duration:
 * this field is set to 0010b, corresponding to: 5.12 s (= 2 * 512 / ODR).
 * After this period of time has elapsed, the accelerometer ODR is internally set to 12.5 Hz
 */
 lis2ds12_act_sleep_dur_set(&dev_ctx, 0);
 
 /* Set Activity wake-up threshold:
 * set to 000010b, therefore the activity/inactivity
 * threshold is 62.5 mg(= 2 * FS / 64)
 */
 lis2ds12_wkup_threshold_set(&dev_ctx, 0x01);
 
 //FIFO Bypass to Continuous Mode MAYBE? (at least on the dtw) requires
 /* Enable activity detection interrupt */
 lis2ds12_pin_int1_route_get(&dev_ctx, &int_route);
 int_route.int1_wu = PROPERTY_ENABLE;
 lis2ds12_pin_int1_route_set(&dev_ctx, int_route);