Capacitive digital sensor for relative humidity and temperature.
Dependencies: X_NUCLEO_COMMON ST_INTERFACES
Dependents: HelloWorld_ST_Sensors MOTENV_Mbed mbed-os-mqtt-client HTS221_JS ... more
HTS221Sensor.h@5:ccf7f36492ae, 2019-07-24 (annotated)
- Committer:
- cparata
- Date:
- Wed Jul 24 14:17:21 2019 +0000
- Revision:
- 5:ccf7f36492ae
- Parent:
- 4:9f317607860e
Format with Astyle
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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nikapov | 0:7917d6d00a6e | 1 | /** |
nikapov | 0:7917d6d00a6e | 2 | ****************************************************************************** |
nikapov | 0:7917d6d00a6e | 3 | * @file HTS221Sensor.h |
nikapov | 0:7917d6d00a6e | 4 | * @author CLab |
nikapov | 0:7917d6d00a6e | 5 | * @version V1.0.0 |
nikapov | 0:7917d6d00a6e | 6 | * @date 5 August 2016 |
nikapov | 0:7917d6d00a6e | 7 | * @brief Abstract class of an HTS221 Humidity and Temperature sensor. |
nikapov | 0:7917d6d00a6e | 8 | ****************************************************************************** |
nikapov | 0:7917d6d00a6e | 9 | * @attention |
nikapov | 0:7917d6d00a6e | 10 | * |
nikapov | 0:7917d6d00a6e | 11 | * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> |
nikapov | 0:7917d6d00a6e | 12 | * |
nikapov | 0:7917d6d00a6e | 13 | * Redistribution and use in source and binary forms, with or without modification, |
nikapov | 0:7917d6d00a6e | 14 | * are permitted provided that the following conditions are met: |
nikapov | 0:7917d6d00a6e | 15 | * 1. Redistributions of source code must retain the above copyright notice, |
nikapov | 0:7917d6d00a6e | 16 | * this list of conditions and the following disclaimer. |
nikapov | 0:7917d6d00a6e | 17 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
nikapov | 0:7917d6d00a6e | 18 | * this list of conditions and the following disclaimer in the documentation |
nikapov | 0:7917d6d00a6e | 19 | * and/or other materials provided with the distribution. |
nikapov | 0:7917d6d00a6e | 20 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
nikapov | 0:7917d6d00a6e | 21 | * may be used to endorse or promote products derived from this software |
nikapov | 0:7917d6d00a6e | 22 | * without specific prior written permission. |
nikapov | 0:7917d6d00a6e | 23 | * |
nikapov | 0:7917d6d00a6e | 24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
nikapov | 0:7917d6d00a6e | 25 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
nikapov | 0:7917d6d00a6e | 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
nikapov | 0:7917d6d00a6e | 27 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
nikapov | 0:7917d6d00a6e | 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
nikapov | 0:7917d6d00a6e | 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
nikapov | 0:7917d6d00a6e | 30 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
nikapov | 0:7917d6d00a6e | 31 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
nikapov | 0:7917d6d00a6e | 32 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
nikapov | 0:7917d6d00a6e | 33 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
nikapov | 0:7917d6d00a6e | 34 | * |
nikapov | 0:7917d6d00a6e | 35 | ****************************************************************************** |
nikapov | 0:7917d6d00a6e | 36 | */ |
nikapov | 0:7917d6d00a6e | 37 | |
nikapov | 0:7917d6d00a6e | 38 | |
nikapov | 0:7917d6d00a6e | 39 | /* Prevent recursive inclusion -----------------------------------------------*/ |
nikapov | 0:7917d6d00a6e | 40 | |
nikapov | 0:7917d6d00a6e | 41 | #ifndef __HTS221Sensor_H__ |
nikapov | 0:7917d6d00a6e | 42 | #define __HTS221Sensor_H__ |
nikapov | 0:7917d6d00a6e | 43 | |
nikapov | 0:7917d6d00a6e | 44 | |
nikapov | 0:7917d6d00a6e | 45 | /* Includes ------------------------------------------------------------------*/ |
nikapov | 0:7917d6d00a6e | 46 | |
nikapov | 0:7917d6d00a6e | 47 | #include "DevI2C.h" |
cparata | 4:9f317607860e | 48 | #include <SPI.h> |
nikapov | 0:7917d6d00a6e | 49 | #include "HTS221_driver.h" |
nikapov | 0:7917d6d00a6e | 50 | #include "HumiditySensor.h" |
nikapov | 0:7917d6d00a6e | 51 | #include "TempSensor.h" |
mapellil | 1:c4391f20553e | 52 | #include <assert.h> |
nikapov | 0:7917d6d00a6e | 53 | |
nikapov | 0:7917d6d00a6e | 54 | /* Class Declaration ---------------------------------------------------------*/ |
nikapov | 0:7917d6d00a6e | 55 | |
nikapov | 0:7917d6d00a6e | 56 | /** |
nikapov | 0:7917d6d00a6e | 57 | * Abstract class of an HTS221 Humidity and Temperature sensor. |
nikapov | 0:7917d6d00a6e | 58 | */ |
cparata | 5:ccf7f36492ae | 59 | class HTS221Sensor : public HumiditySensor, public TempSensor { |
cparata | 5:ccf7f36492ae | 60 | public: |
cparata | 5:ccf7f36492ae | 61 | HTS221Sensor(SPI *spi, PinName cs_pin = NC, PinName drdy_pin = NC); // SPI3W ONLY |
cparata | 5:ccf7f36492ae | 62 | HTS221Sensor(DevI2C *i2c, uint8_t address = HTS221_I2C_ADDRESS, PinName drdy_pin = NC); |
nikapov | 0:7917d6d00a6e | 63 | virtual int init(void *init); |
nikapov | 0:7917d6d00a6e | 64 | virtual int read_id(uint8_t *id); |
nikapov | 0:7917d6d00a6e | 65 | virtual int get_humidity(float *pfData); |
nikapov | 0:7917d6d00a6e | 66 | virtual int get_temperature(float *pfData); |
nikapov | 0:7917d6d00a6e | 67 | int enable(void); |
nikapov | 0:7917d6d00a6e | 68 | int disable(void); |
nikapov | 0:7917d6d00a6e | 69 | int reset(void); |
nikapov | 0:7917d6d00a6e | 70 | int get_odr(float *odr); |
nikapov | 0:7917d6d00a6e | 71 | int set_odr(float odr); |
nikapov | 0:7917d6d00a6e | 72 | int read_reg(uint8_t reg, uint8_t *data); |
nikapov | 0:7917d6d00a6e | 73 | int write_reg(uint8_t reg, uint8_t data); |
nikapov | 0:7917d6d00a6e | 74 | /** |
nikapov | 0:7917d6d00a6e | 75 | * @brief Utility function to read data. |
nikapov | 0:7917d6d00a6e | 76 | * @param pBuffer: pointer to data to be read. |
nikapov | 0:7917d6d00a6e | 77 | * @param RegisterAddr: specifies internal address register to be read. |
nikapov | 0:7917d6d00a6e | 78 | * @param NumByteToRead: number of bytes to be read. |
nikapov | 0:7917d6d00a6e | 79 | * @retval 0 if ok, an error code otherwise. |
nikapov | 0:7917d6d00a6e | 80 | */ |
cparata | 5:ccf7f36492ae | 81 | uint8_t io_read(uint8_t *pBuffer, uint8_t RegisterAddr, uint16_t NumByteToRead) |
nikapov | 0:7917d6d00a6e | 82 | { |
mapellil | 2:312ee2694a77 | 83 | if (_dev_spi) { |
cparata | 5:ccf7f36492ae | 84 | /* Write Reg Address */ |
mapellil | 2:312ee2694a77 | 85 | _dev_spi->lock(); |
cparata | 4:9f317607860e | 86 | _cs_pin = 0; |
mapellil | 2:312ee2694a77 | 87 | /* Write RD Reg Address with RD bit*/ |
cparata | 4:9f317607860e | 88 | uint8_t TxByte = RegisterAddr | 0x80; |
mapellil | 2:312ee2694a77 | 89 | _dev_spi->write((char *)&TxByte, 1, (char *)pBuffer, (int) NumByteToRead); |
mapellil | 2:312ee2694a77 | 90 | _cs_pin = 1; |
cparata | 4:9f317607860e | 91 | _dev_spi->unlock(); |
mapellil | 2:312ee2694a77 | 92 | return 0; |
cparata | 5:ccf7f36492ae | 93 | } |
cparata | 5:ccf7f36492ae | 94 | if (_dev_i2c) { |
cparata | 5:ccf7f36492ae | 95 | return (uint8_t) _dev_i2c->i2c_read(pBuffer, _address, RegisterAddr, NumByteToRead); |
cparata | 5:ccf7f36492ae | 96 | } |
mapellil | 2:312ee2694a77 | 97 | return 1; |
nikapov | 0:7917d6d00a6e | 98 | } |
cparata | 5:ccf7f36492ae | 99 | |
nikapov | 0:7917d6d00a6e | 100 | /** |
nikapov | 0:7917d6d00a6e | 101 | * @brief Utility function to write data. |
nikapov | 0:7917d6d00a6e | 102 | * @param pBuffer: pointer to data to be written. |
nikapov | 0:7917d6d00a6e | 103 | * @param RegisterAddr: specifies internal address register to be written. |
nikapov | 0:7917d6d00a6e | 104 | * @param NumByteToWrite: number of bytes to write. |
nikapov | 0:7917d6d00a6e | 105 | * @retval 0 if ok, an error code otherwise. |
nikapov | 0:7917d6d00a6e | 106 | */ |
cparata | 5:ccf7f36492ae | 107 | uint8_t io_write(uint8_t *pBuffer, uint8_t RegisterAddr, uint16_t NumByteToWrite) |
nikapov | 0:7917d6d00a6e | 108 | { |
cparata | 5:ccf7f36492ae | 109 | if (_dev_spi) { |
mapellil | 2:312ee2694a77 | 110 | _dev_spi->lock(); |
mapellil | 2:312ee2694a77 | 111 | _cs_pin = 0; |
cparata | 5:ccf7f36492ae | 112 | _dev_spi->write(RegisterAddr); |
cparata | 5:ccf7f36492ae | 113 | _dev_spi->write((char *)pBuffer, (int) NumByteToWrite, NULL, 0); |
cparata | 5:ccf7f36492ae | 114 | _cs_pin = 1; |
mapellil | 2:312ee2694a77 | 115 | _dev_spi->unlock(); |
cparata | 5:ccf7f36492ae | 116 | return 0; |
cparata | 5:ccf7f36492ae | 117 | } |
cparata | 5:ccf7f36492ae | 118 | if (_dev_i2c) { |
cparata | 5:ccf7f36492ae | 119 | return (uint8_t) _dev_i2c->i2c_write(pBuffer, _address, RegisterAddr, NumByteToWrite); |
cparata | 5:ccf7f36492ae | 120 | } |
mapellil | 2:312ee2694a77 | 121 | return 1; |
nikapov | 0:7917d6d00a6e | 122 | } |
nikapov | 0:7917d6d00a6e | 123 | |
cparata | 5:ccf7f36492ae | 124 | private: |
nikapov | 0:7917d6d00a6e | 125 | |
nikapov | 0:7917d6d00a6e | 126 | /* Helper classes. */ |
mapellil | 1:c4391f20553e | 127 | DevI2C *_dev_i2c; |
cparata | 4:9f317607860e | 128 | SPI *_dev_spi; |
cparata | 5:ccf7f36492ae | 129 | |
nikapov | 0:7917d6d00a6e | 130 | /* Configuration */ |
nikapov | 0:7917d6d00a6e | 131 | uint8_t _address; |
cparata | 5:ccf7f36492ae | 132 | DigitalOut _cs_pin; |
cparata | 5:ccf7f36492ae | 133 | InterruptIn _drdy_pin; |
nikapov | 0:7917d6d00a6e | 134 | }; |
nikapov | 0:7917d6d00a6e | 135 | |
nikapov | 0:7917d6d00a6e | 136 | #ifdef __cplusplus |
cparata | 5:ccf7f36492ae | 137 | extern "C" { |
nikapov | 0:7917d6d00a6e | 138 | #endif |
cparata | 5:ccf7f36492ae | 139 | uint8_t HTS221_io_write(void *handle, uint8_t WriteAddr, uint8_t *pBuffer, uint16_t nBytesToWrite); |
cparata | 5:ccf7f36492ae | 140 | uint8_t HTS221_io_read(void *handle, uint8_t ReadAddr, uint8_t *pBuffer, uint16_t nBytesToRead); |
nikapov | 0:7917d6d00a6e | 141 | #ifdef __cplusplus |
cparata | 5:ccf7f36492ae | 142 | } |
nikapov | 0:7917d6d00a6e | 143 | #endif |
nikapov | 0:7917d6d00a6e | 144 | |
nikapov | 0:7917d6d00a6e | 145 | #endif |