3-axis MEMS ultra low power accelerometer
Dependencies: X_NUCLEO_COMMON ST_INTERFACES
Dependents: X_NUCLEO_IKS01A3 X_NUCLEO_IKS01A3
Diff: LIS2DW12Sensor.h
- Revision:
- 4:94c5d5546161
- Parent:
- 0:dff8803aace7
diff -r 111317ba9301 -r 94c5d5546161 LIS2DW12Sensor.h
--- a/LIS2DW12Sensor.h Wed Nov 21 15:43:22 2018 +0000
+++ b/LIS2DW12Sensor.h Wed Jul 24 14:18:07 2019 +0000
@@ -66,40 +66,36 @@
/* Typedefs ------------------------------------------------------------------*/
-typedef struct
-{
- unsigned int WakeUpStatus : 1;
- unsigned int D6DOrientationStatus : 1;
- unsigned int SleepStatus : 1;
+typedef struct {
+ unsigned int WakeUpStatus : 1;
+ unsigned int D6DOrientationStatus : 1;
+ unsigned int SleepStatus : 1;
} LIS2DW12_Event_Status_t;
-typedef enum
-{
- LIS2DW12_HIGH_PERFORMANCE_MODE,
- LIS2DW12_LOW_POWER_MODE4,
- LIS2DW12_LOW_POWER_MODE3,
- LIS2DW12_LOW_POWER_MODE2,
- LIS2DW12_LOW_POWER_MODE1
+typedef enum {
+ LIS2DW12_HIGH_PERFORMANCE_MODE,
+ LIS2DW12_LOW_POWER_MODE4,
+ LIS2DW12_LOW_POWER_MODE3,
+ LIS2DW12_LOW_POWER_MODE2,
+ LIS2DW12_LOW_POWER_MODE1
} LIS2DW12_Operating_Mode_t;
-typedef enum
-{
- LIS2DW12_LOW_NOISE_DISABLE,
- LIS2DW12_LOW_NOISE_ENABLE
+typedef enum {
+ LIS2DW12_LOW_NOISE_DISABLE,
+ LIS2DW12_LOW_NOISE_ENABLE
} LIS2DW12_Low_Noise_t;
/* Class Declaration ---------------------------------------------------------*/
-
+
/**
* Abstract class of an LIS2DW12 Inertial Measurement Unit (IMU) 3 axes
* sensor.
*/
-class LIS2DW12Sensor : public MotionSensor
-{
- public:
+class LIS2DW12Sensor : public MotionSensor {
+public:
enum SPI_type_t {SPI3W, SPI4W};
- LIS2DW12Sensor(DevI2C *i2c, uint8_t address=LIS2DW12_I2C_ADD_H, PinName int1_pin=NC, PinName int2_pin=NC);
- LIS2DW12Sensor(SPI *spi, PinName cs_pin, PinName int1_pin=NC, PinName int2_pin=NC, SPI_type_t spi_type=SPI4W);
+ LIS2DW12Sensor(DevI2C *i2c, uint8_t address = LIS2DW12_I2C_ADD_H, PinName int1_pin = NC, PinName int2_pin = NC);
+ LIS2DW12Sensor(SPI *spi, PinName cs_pin, PinName int1_pin = NC, PinName int2_pin = NC, SPI_type_t spi_type = SPI4W);
virtual int init(void *init);
virtual int read_id(uint8_t *id);
virtual int get_x_axes(int32_t *pData);
@@ -109,7 +105,7 @@
virtual int set_x_odr(float odr);
virtual int get_x_fs(float *fullScale);
virtual int set_x_fs(float fullScale);
- int set_x_odr_with_mode(float odr, LIS2DW12_Operating_Mode_t mode=LIS2DW12_HIGH_PERFORMANCE_MODE, LIS2DW12_Low_Noise_t noise=LIS2DW12_LOW_NOISE_DISABLE);
+ int set_x_odr_with_mode(float odr, LIS2DW12_Operating_Mode_t mode = LIS2DW12_HIGH_PERFORMANCE_MODE, LIS2DW12_Low_Noise_t noise = LIS2DW12_LOW_NOISE_DISABLE);
int enable_x(void);
int disable_x(void);
int enable_wake_up_detection(void);
@@ -133,7 +129,7 @@
int set_fifo_mode(uint8_t mode);
int read_reg(uint8_t reg, uint8_t *data);
int write_reg(uint8_t reg, uint8_t data);
-
+
/**
* @brief Attaching an interrupt handler to the INT1 interrupt.
* @param fptr An interrupt handler.
@@ -153,7 +149,7 @@
{
_int1_irq.enable_irq();
}
-
+
/**
* @brief Disabling the INT1 interrupt handling.
* @param None.
@@ -163,7 +159,7 @@
{
_int1_irq.disable_irq();
}
-
+
/**
* @brief Attaching an interrupt handler to the INT2 interrupt.
* @param fptr An interrupt handler.
@@ -183,7 +179,7 @@
{
_int2_irq.enable_irq();
}
-
+
/**
* @brief Disabling the INT2 interrupt handling.
* @param None.
@@ -193,7 +189,7 @@
{
_int2_irq.disable_irq();
}
-
+
/**
* @brief Utility function to read data.
* @param pBuffer: pointer to data to be read.
@@ -201,30 +197,32 @@
* @param NumByteToRead: number of bytes to be read.
* @retval 0 if ok, an error code otherwise.
*/
- uint8_t io_read(uint8_t* pBuffer, uint8_t RegisterAddr, uint16_t NumByteToRead)
- {
+ uint8_t io_read(uint8_t *pBuffer, uint8_t RegisterAddr, uint16_t NumByteToRead)
+ {
if (_dev_spi) {
- /* Write Reg Address */
+ /* Write Reg Address */
_dev_spi->lock();
- _cs_pin = 0;
- if (_spi_type == SPI4W) {
+ _cs_pin = 0;
+ if (_spi_type == SPI4W) {
_dev_spi->write(RegisterAddr | 0x80);
- for (int i=0; i<NumByteToRead; i++) {
- *(pBuffer+i) = _dev_spi->write(0x00);
+ for (int i = 0; i < NumByteToRead; i++) {
+ *(pBuffer + i) = _dev_spi->write(0x00);
}
- } else if (_spi_type == SPI3W){
+ } else if (_spi_type == SPI3W) {
/* Write RD Reg Address with RD bit*/
- uint8_t TxByte = RegisterAddr | 0x80;
+ uint8_t TxByte = RegisterAddr | 0x80;
_dev_spi->write((char *)&TxByte, 1, (char *)pBuffer, (int) NumByteToRead);
- }
+ }
_cs_pin = 1;
- _dev_spi->unlock();
+ _dev_spi->unlock();
return 0;
- }
- if (_dev_i2c) return (uint8_t) _dev_i2c->i2c_read(pBuffer, _address, RegisterAddr, NumByteToRead);
+ }
+ if (_dev_i2c) {
+ return (uint8_t) _dev_i2c->i2c_read(pBuffer, _address, RegisterAddr, NumByteToRead);
+ }
return 1;
}
-
+
/**
* @brief Utility function to write data.
* @param pBuffer: pointer to data to be written.
@@ -232,36 +230,38 @@
* @param NumByteToWrite: number of bytes to write.
* @retval 0 if ok, an error code otherwise.
*/
- uint8_t io_write(uint8_t* pBuffer, uint8_t RegisterAddr, uint16_t NumByteToWrite)
- {
- if (_dev_spi) {
+ uint8_t io_write(uint8_t *pBuffer, uint8_t RegisterAddr, uint16_t NumByteToWrite)
+ {
+ if (_dev_spi) {
_dev_spi->lock();
_cs_pin = 0;
- _dev_spi->write(RegisterAddr);
- _dev_spi->write((char *)pBuffer, (int) NumByteToWrite, NULL, 0);
- _cs_pin = 1;
+ _dev_spi->write(RegisterAddr);
+ _dev_spi->write((char *)pBuffer, (int) NumByteToWrite, NULL, 0);
+ _cs_pin = 1;
_dev_spi->unlock();
- return 0;
- }
- if (_dev_i2c) return (uint8_t) _dev_i2c->i2c_write(pBuffer, _address, RegisterAddr, NumByteToWrite);
+ return 0;
+ }
+ if (_dev_i2c) {
+ return (uint8_t) _dev_i2c->i2c_write(pBuffer, _address, RegisterAddr, NumByteToWrite);
+ }
return 1;
}
- private:
+private:
int set_x_odr_when_enabled(float odr, LIS2DW12_Operating_Mode_t mode, LIS2DW12_Low_Noise_t noise);
int set_x_odr_when_disabled(float odr, LIS2DW12_Operating_Mode_t mode, LIS2DW12_Low_Noise_t noise);
/* Helper classes. */
DevI2C *_dev_i2c;
SPI *_dev_spi;
-
+
/* Configuration */
uint8_t _address;
- DigitalOut _cs_pin;
+ DigitalOut _cs_pin;
InterruptIn _int1_irq;
InterruptIn _int2_irq;
SPI_type_t _spi_type;
-
+
uint8_t _x_is_enabled;
float _x_last_odr;
LIS2DW12_Operating_Mode_t _x_last_operating_mode;
@@ -271,12 +271,12 @@
};
#ifdef __cplusplus
- extern "C" {
+extern "C" {
#endif
-int32_t LIS2DW12_io_write( void *handle, uint8_t WriteAddr, uint8_t *pBuffer, uint16_t nBytesToWrite );
-int32_t LIS2DW12_io_read( void *handle, uint8_t ReadAddr, uint8_t *pBuffer, uint16_t nBytesToRead );
+int32_t LIS2DW12_io_write(void *handle, uint8_t WriteAddr, uint8_t *pBuffer, uint16_t nBytesToWrite);
+int32_t LIS2DW12_io_read(void *handle, uint8_t ReadAddr, uint8_t *pBuffer, uint16_t nBytesToRead);
#ifdef __cplusplus
- }
+}
#endif
#endif