nRF52-DK and LSM9DS1
This is redefined main.c from SDK folder: $SDK/examples/peripheral/twi_sensor/
-
Should be added include file from: https://github.com/STMicroelectronics/STMems_Standard_C_drivers/tree/master/lsm9ds1_STdC/driver
-
example code from STM is: https://github.com/STMicroelectronics/STMems_Standard_C_drivers/tree/master/lsm9ds1_STdC/example
Note for Segger studio:
printf should be enabled in: right mouse click on project > Options > choose Common > in search box type "float" > change Printf Floating Point Supported from "No" to "Float".
Hardware required
- nRF52 DK (PCA10056)
- LSM9DS1 module steval-mki159v1 like: https://www.st.com/en/evaluation-tools/steval-mki159v1.html
Connect modul and nRF52
| JP1 on STEVAL | nRF52 DK |
|---|---|
| 1, 2 | VDD |
| 21 (SDA) | P0.26 |
| 20 (SCL) | P0.27 |
| GND | GND |
Output example
TWI device example started.
Who am I register [IMU]: 0x68 [MAG]: 0x3d
IMU - [mg]:7.44 -953.06 -361.49 [mdps]:560.00 -1330.00 -1190.00
MAG - [mG]:590.44 1506.26 -253.46
IMU - [mg]:7.20 -953.67 -365.76 [mdps]:-700.00 1610.00 1470.00
IMU - [mg]:6.95 -953.06 -368.56 [mdps]:-4830.00 10920.00 9310.00
IMU - [mg]:6.95 -952.33 -368.93 [mdps]:3010.00 -7420.00 -6790.00
IMU - [mg]:7.08 -952.70 -371.25 [mdps]:24290.00 -56210.00 -48020.00
IMU - [mg]:7.81 -952.09 -372.34 [mdps]:27860.00 -61740.00 -51380.00
IMU - [mg]:6.95 -953.19 -371.37 [mdps]:7420.00 -11480.00 -7840.00
MAG - [mG]:581.16 1519.02 -249.98
IMU - [mg]:7.20 -953.92 -372.34 [mdps]:-4480.00 16870.00 15960.00
....