Forum Posts
Not understanding PDM 2 PCM buffer sized
Hello, I posted this in another area but it may be better placed here. I have a PDM MEMS microphone that I am reading in I2S master receive mode. What I would really like to do is store the PCM data into a ping pong buffer and then transmit the fir...
Resolved! Is it an error in the datasheet of lsm6ds3tr-c?
As the datasheet wrote, the full scale of angular rate measurement range is 2000 dps, and the output value is a 16-bit word in two’s complement, so when we set the angular rate measurement range to 2000 dps, the sensitivity (unit mdps/LSB)could be ca...
LIS2DTW12 Threshold setting
Hello,I read the application note related to the LIS2DW12 (AN5038) and the point 6.5 confused me : On the table is recommended to set FTH_THS at 8 if the ODR is 200 Hz and I2C is running at 100KHz.A sample of 3 acceleration (6 bytes) is read in 830 ...
HTS221 Incorrect Temperatures / Calibration (T0_OUT = 0)
Hi,I'm having an problem whereby I believe the temperature readings from an HTS221 device are incorrect. They seems to be around 5degC too high compared to reference temp. I'm using a Nest thermostat as the reference, and while this may not be calibr...
Resolved! I got the MLC working on the lsm6dsox. But when i enable stepcount on FIFO my MLC stops working ? these are the 3 lines , is there anyway i can use MLC and stepcount? or will i have to make my own step count tree?
/* Start Machine Learning Core configuration */ for (uint32_t i = 0; i sizeof(ucf_line_t)); i++) { lsm6dsox_write_reg(p_lsm6dsox, lsm6dsox_MLC[i].address, (uint8_t *)&lsm6ds...
Resolved! Hi. I'm trying to make a very slight modification to the SensorTile_ALLMEMS1 project. I want to be able to read the ACC_GYRO_MAG char value over BLE.
In the sensor_service.c source file, I add the char_prop_read flag in the below, but now the SensorTile does not even start BLE properly. Any help is appreciated.starting at line 1074, COPY_ACC_GYRO_MAG_W2ST_CHAR_UUID(uuid); ret = aci_gatt_add_char(...
Resolved! LSM6DSL data not correct
Lsm6dsl reads out the data, and the z-axis data is always biased. When the acceleration range is set to 2G, it is placed vertically on the ground, and the z-axis is upward. The data is:Acceleration [mg]:30.68 106.32 1998.60the z-axis is downAccelera...