LELEC2811 - I&S
LPS22HH pressure sensor library
Dependencies: X_NUCLEO_COMMON ST_INTERFACES
Revision 2:a8417bcdc2e8, committed 2019-09-17
- Comitter:
- martlefebvre94
- Date:
- Tue Sep 17 08:40:31 2019 +0000
- Parent:
- 1:978cae936ddb
- Commit message:
- Addition of functions for the configuration of the pressure sensor
Changed in this revision
| LPS22HHSensor.cpp | Show annotated file Show diff for this revision Revisions of this file |
| LPS22HHSensor.h | Show annotated file Show diff for this revision Revisions of this file |
diff -r 978cae936ddb -r a8417bcdc2e8 LPS22HHSensor.cpp
--- a/LPS22HHSensor.cpp Wed Jul 24 14:19:09 2019 +0000
+++ b/LPS22HHSensor.cpp Tue Sep 17 08:40:31 2019 +0000
@@ -193,7 +193,7 @@
* @param odr the output data rate value
* @retval 0 in case of success, an error code otherwise
*/
-int LPS22HHSensor::get_odr(float *odr)
+int LPS22HHSensor::get_odr(float *odr, uint8_t *low_noise_en)
{
int ret = 0;
lps22hh_odr_t odr_low_level;
@@ -205,34 +205,67 @@
switch (odr_low_level) {
case LPS22HH_POWER_DOWN:
*odr = 0.0f;
+ *low_noise_en = 0;
break;
case LPS22HH_1_Hz:
*odr = 1.0f;
+ *low_noise_en = 0;
break;
case LPS22HH_10_Hz:
*odr = 10.0f;
+ *low_noise_en = 0;
break;
case LPS22HH_25_Hz:
*odr = 25.0f;
+ *low_noise_en = 0;
break;
case LPS22HH_50_Hz:
*odr = 50.0f;
+ *low_noise_en = 0;
break;
case LPS22HH_75_Hz:
*odr = 75.0f;
+ *low_noise_en = 0;
break;
-
+
+ case LPS22HH_1_Hz_LOW_NOISE:
+ *odr = 1.0f;
+ *low_noise_en = 1;
+ break;
+
+ case LPS22HH_10_Hz_LOW_NOISE:
+ *odr = 10.0f;
+ *low_noise_en = 1;
+ break;
+
+ case LPS22HH_25_Hz_LOW_NOISE:
+ *odr = 25.0f;
+ *low_noise_en = 1;
+ break;
+
+ case LPS22HH_50_Hz_LOW_NOISE:
+ *odr = 50.0f;
+ *low_noise_en = 1;
+ break;
+
+ case LPS22HH_75_Hz_LOW_NOISE:
+ *odr = 75.0f;
+ *low_noise_en = 1;
+ break;
+
case LPS22HH_100_Hz:
*odr = 100.0f;
+ *low_noise_en = 0;
break;
case LPS22HH_200_Hz:
*odr = 200.0f;
+ *low_noise_en = 0;
break;
default:
@@ -248,33 +281,37 @@
* @param odr the output data rate value to be set
* @retval 0 in case of success, an error code otherwise
*/
-int LPS22HHSensor::set_odr(float odr)
+int LPS22HHSensor::set_odr(float odr, uint8_t low_noise_en)
{
/* Check if the component is _is_enabled */
if (_is_enabled == 1U) {
- return set_odr_when_enabled(odr);
+ return set_odr_when_enabled(odr, low_noise_en);
} else {
- return set_odr_when_disabled(odr);
+ return set_odr_when_disabled(odr, low_noise_en);
}
}
-
/**
* @brief Set output data rate
* @param odr the output data rate value to be set
* @retval 0 in case of success, an error code otherwise
*/
-int LPS22HHSensor::set_odr_when_enabled(float odr)
+int LPS22HHSensor::set_odr_when_enabled(float odr, uint8_t low_noise_en)
{
lps22hh_odr_t new_odr;
- new_odr = (odr <= 1.0f) ? LPS22HH_1_Hz
- : (odr <= 10.0f) ? LPS22HH_10_Hz
- : (odr <= 25.0f) ? LPS22HH_25_Hz
- : (odr <= 50.0f) ? LPS22HH_50_Hz
- : (odr <= 75.0f) ? LPS22HH_75_Hz
- : (odr <= 100.0f) ? LPS22HH_100_Hz
- : LPS22HH_200_Hz;
+ new_odr = ((odr <= 1.0f) && !low_noise_en) ? LPS22HH_1_Hz
+ : ((odr <= 1.0f) && low_noise_en) ? LPS22HH_1_Hz_LOW_NOISE
+ : ((odr <= 10.0f) && !low_noise_en) ? LPS22HH_10_Hz
+ : ((odr <= 10.0f) && low_noise_en) ? LPS22HH_10_Hz_LOW_NOISE
+ : ((odr <= 25.0f) && !low_noise_en) ? LPS22HH_25_Hz
+ : ((odr <= 25.0f) && low_noise_en) ? LPS22HH_25_Hz_LOW_NOISE
+ : ((odr <= 50.0f) && !low_noise_en) ? LPS22HH_50_Hz
+ : ((odr <= 50.0f) && low_noise_en) ? LPS22HH_50_Hz_LOW_NOISE
+ : ((odr <= 75.0f) && !low_noise_en) ? LPS22HH_75_Hz
+ : ((odr <= 75.0f) && low_noise_en) ? LPS22HH_75_Hz_LOW_NOISE
+ : (odr <= 100.0f) ? LPS22HH_100_Hz
+ : LPS22HH_200_Hz;
if (lps22hh_data_rate_set(&_reg_ctx, new_odr) != 0) {
return 1;
@@ -292,15 +329,76 @@
* @param odr the output data rate value to be set
* @retval 0 in case of success, an error code otherwise
*/
-int LPS22HHSensor::set_odr_when_disabled(float odr)
+int LPS22HHSensor::set_odr_when_disabled(float odr, uint8_t low_noise_en)
+{
+ _last_odr = ((odr <= 1.0f) && !low_noise_en) ? LPS22HH_1_Hz
+ : ((odr <= 1.0f) && low_noise_en) ? LPS22HH_1_Hz_LOW_NOISE
+ : ((odr <= 10.0f) && !low_noise_en) ? LPS22HH_10_Hz
+ : ((odr <= 10.0f) && low_noise_en) ? LPS22HH_10_Hz_LOW_NOISE
+ : ((odr <= 25.0f) && !low_noise_en) ? LPS22HH_25_Hz
+ : ((odr <= 25.0f) && low_noise_en) ? LPS22HH_25_Hz_LOW_NOISE
+ : ((odr <= 50.0f) && !low_noise_en) ? LPS22HH_50_Hz
+ : ((odr <= 50.0f) && low_noise_en) ? LPS22HH_50_Hz_LOW_NOISE
+ : ((odr <= 75.0f) && !low_noise_en) ? LPS22HH_75_Hz
+ : ((odr <= 75.0f) && low_noise_en) ? LPS22HH_75_Hz_LOW_NOISE
+ : (odr <= 100.0f) ? LPS22HH_100_Hz
+ : LPS22HH_200_Hz;
+
+ return 0;
+}
+
+
+/**
+ * @brief Get low-pass configuration
+ * @param lpfp_cfg the low-pass configuration value
+ * @retval 0 in case of success, an error code otherwise
+ */
+int LPS22HHSensor::get_lpfp_cfg(uint8_t *lpfp_cfg)
{
- _last_odr = (odr <= 1.0f) ? LPS22HH_1_Hz
- : (odr <= 10.0f) ? LPS22HH_10_Hz
- : (odr <= 25.0f) ? LPS22HH_25_Hz
- : (odr <= 50.0f) ? LPS22HH_50_Hz
- : (odr <= 75.0f) ? LPS22HH_75_Hz
- : (odr <= 100.0f) ? LPS22HH_100_Hz
- : LPS22HH_200_Hz;
+ int ret = 0;
+ lps22hh_lpfp_cfg_t lpfp_cfg_low_level;
+
+ if (lps22hh_lp_bandwidth_get(&_reg_ctx, &lpfp_cfg_low_level) != 0) {
+ return 1;
+ }
+
+ switch (lpfp_cfg_low_level) {
+ case LPS22HH_LPF_ODR_DIV_2:
+ *lpfp_cfg = 0;
+ break;
+
+ case LPS22HH_LPF_ODR_DIV_9:
+ *lpfp_cfg = 2;
+ break;
+
+ case LPS22HH_LPF_ODR_DIV_20:
+ *lpfp_cfg = 3;
+ break;
+
+ default:
+ ret = 1;
+ break;
+ }
+
+ return ret;
+}
+
+/**
+ * @brief Set the LPS22HH pressure sensor low-pass configuration
+ * @param lpfp_cfg the low-pass configuration value to be set
+ * @retval 0 in case of success, an error code otherwise
+ */
+int LPS22HHSensor::set_lpfp_cfg(uint8_t lpfp_cfg)
+{
+ lps22hh_lpfp_cfg_t new_lpfp_cfg;
+
+ new_lpfp_cfg = (lpfp_cfg == 2) ? LPS22HH_LPF_ODR_DIV_9
+ : (lpfp_cfg == 3) ? LPS22HH_LPF_ODR_DIV_20
+ : LPS22HH_LPF_ODR_DIV_2;
+
+ if (lps22hh_lp_bandwidth_set(&_reg_ctx, new_lpfp_cfg) != 0) {
+ return 1;
+ }
return 0;
}
diff -r 978cae936ddb -r a8417bcdc2e8 LPS22HHSensor.h
--- a/LPS22HHSensor.h Wed Jul 24 14:19:09 2019 +0000
+++ b/LPS22HHSensor.h Tue Sep 17 08:40:31 2019 +0000
@@ -68,8 +68,10 @@
virtual int get_temperature(float *value);
int enable(void);
int disable(void);
- int get_odr(float *odr);
- int set_odr(float odr);
+ int get_odr(float *odr, uint8_t *low_noise_en);
+ int set_odr(float odr, uint8_t low_noise_en);
+ int get_lpfp_cfg(uint8_t *lpfp_cfg);
+ int set_lpfp_cfg(uint8_t lpfp_cfg);
int read_reg(uint8_t reg, uint8_t *data);
int write_reg(uint8_t reg, uint8_t data);
int get_press_drdy_status(uint8_t *status);
@@ -176,8 +178,8 @@
}
private:
- int set_odr_when_enabled(float odr);
- int set_odr_when_disabled(float odr);
+ int set_odr_when_enabled(float odr, uint8_t low_noise_en);
+ int set_odr_when_disabled(float odr, uint8_t low_noise_en);
/* Helper classes. */
DevI2C *_dev_i2c;