MEMS nano pressure sensor: 260-1260 hPa absolute digital output barometer.
Dependencies: X_NUCLEO_COMMON ST_INTERFACES
Dependents: X_NUCLEO_IKS01A3 X_NUCLEO_IKS01A3
Diff: LPS22HHSensor.h
- Revision:
- 1:978cae936ddb
- Parent:
- 0:c761bc6186e8
diff -r c761bc6186e8 -r 978cae936ddb LPS22HHSensor.h --- a/LPS22HHSensor.h Wed Mar 06 09:18:20 2019 +0000 +++ b/LPS22HHSensor.h Wed Jul 24 14:19:09 2019 +0000 @@ -53,16 +53,15 @@ /* Defines -------------------------------------------------------------------*/ /* Typedefs ------------------------------------------------------------------*/ /* Class Declaration ---------------------------------------------------------*/ - + /** * Abstract class of a LPS22HH pressure sensor. */ -class LPS22HHSensor : public PressureSensor, public TempSensor -{ - public: - enum SPI_type_t {SPI3W, SPI4W}; - LPS22HHSensor(SPI *spi, PinName cs_pin, PinName int_pin=NC, SPI_type_t spi_type=SPI4W); - LPS22HHSensor(DevI2C *i2c, uint8_t address=LPS22HH_I2C_ADD_H, PinName int_pin=NC); +class LPS22HHSensor : public PressureSensor, public TempSensor { +public: + enum SPI_type_t {SPI3W, SPI4W}; + LPS22HHSensor(SPI *spi, PinName cs_pin, PinName int_pin = NC, SPI_type_t spi_type = SPI4W); + LPS22HHSensor(DevI2C *i2c, uint8_t address = LPS22HH_I2C_ADD_H, PinName int_pin = NC); virtual int init(void *init); virtual int read_id(uint8_t *id); virtual int get_pressure(float *value); @@ -107,7 +106,7 @@ { _int_irq.enable_irq(); } - + /** * @brief Disabling the INT interrupt handling. * @param None. @@ -126,30 +125,32 @@ * @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 */ _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. @@ -157,49 +158,51 @@ * @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) + uint8_t io_write(uint8_t *pBuffer, uint8_t RegisterAddr, uint16_t NumByteToWrite) { - if (_dev_spi) { + 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_odr_when_enabled(float odr); int set_odr_when_disabled(float odr); /* Helper classes. */ DevI2C *_dev_i2c; - SPI *_dev_spi; - + SPI *_dev_spi; + /* Configuration */ uint8_t _address; - DigitalOut _cs_pin; - InterruptIn _int_irq; - SPI_type_t _spi_type; - + DigitalOut _cs_pin; + InterruptIn _int_irq; + SPI_type_t _spi_type; + uint8_t _is_enabled; lps22hh_odr_t _last_odr; - + lps22hh_ctx_t _reg_ctx; - + }; #ifdef __cplusplus - extern "C" { +extern "C" { #endif -int32_t LPS22HH_io_write( void *handle, uint8_t WriteAddr, uint8_t *pBuffer, uint16_t nBytesToWrite ); -int32_t LPS22HH_io_read( void *handle, uint8_t ReadAddr, uint8_t *pBuffer, uint16_t nBytesToRead ); +int32_t LPS22HH_io_write(void *handle, uint8_t WriteAddr, uint8_t *pBuffer, uint16_t nBytesToWrite); +int32_t LPS22HH_io_read(void *handle, uint8_t ReadAddr, uint8_t *pBuffer, uint16_t nBytesToRead); #ifdef __cplusplus - } +} #endif #endif