Analog Devices / mbed-drivers

A collection of Analog Devices drivers for the mbed platform

For additional information check out the mbed page of the Analog Devices wiki: https://wiki.analog.com/resources/tools-software/mbed-drivers-all

libraries/cn0357/cn0357.h@1:c1f0670bb370, 2016-03-30 (annotated)

Committer:
Suciu
Date:
Wed Mar 30 17:35:04 2016 +0300
Revision:
1:c1f0670bb370
Child:
3:1a8c14043a4e
Added CN0357-example project and related drivers

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Suciu 1:c1f0670bb370 1 /**
Suciu 1:c1f0670bb370 2 * @file CN0357.h
Suciu 1:c1f0670bb370 3 * @brief Header file for CN0357 toxic gas sensor shield
Suciu 1:c1f0670bb370 4 * @version V0.1
Suciu 1:c1f0670bb370 5 * @author ADI
Suciu 1:c1f0670bb370 6 * @date March 2015
Suciu 1:c1f0670bb370 7 **/
Suciu 1:c1f0670bb370 8
Suciu 1:c1f0670bb370 9 #ifndef CN0357_H
Suciu 1:c1f0670bb370 10 #define CN0357_H
Suciu 1:c1f0670bb370 11
Suciu 1:c1f0670bb370 12 #include "mbed.h"
Suciu 1:c1f0670bb370 13 #include "ad7790.h"
Suciu 1:c1f0670bb370 14 #include "ad5270.h"
Suciu 1:c1f0670bb370 15
Suciu 1:c1f0670bb370 16 /**
Suciu 1:c1f0670bb370 17 * @brief EVAL-CN0357 toxic gas sensor shield
Suciu 1:c1f0670bb370 18 */
Suciu 1:c1f0670bb370 19 class CN0357
Suciu 1:c1f0670bb370 20 {
Suciu 1:c1f0670bb370 21 public:
Suciu 1:c1f0670bb370 22
Suciu 1:c1f0670bb370 23 /// CN0357 shield jumper configuration
Suciu 1:c1f0670bb370 24 typedef enum {
Suciu 1:c1f0670bb370 25 INTERNAL_AD7790 = 0, ///< The shield's AD7790 is used
Suciu 1:c1f0670bb370 26 EXTERNAL_ADC ///< Sensor analog output is routed to A1 pin of the shield
Suciu 1:c1f0670bb370 27 } JumperConfig_t;
Suciu 1:c1f0670bb370 28
Suciu 1:c1f0670bb370 29 CN0357(PinName CSAD7790=D8, PinName CSAD5270=D6, PinName MOSI=SPI_MOSI,PinName MISO=SPI_MISO,PinName SCK=SPI_SCK);
Suciu 1:c1f0670bb370 30 void init(float range, float sensitivity,JumperConfig_t jp = INTERNAL_AD7790, uint8_t mode_val = _DEFAULT_MODE_VAL, uint8_t filter_val = _DEFAULT_FILTER_VAL);
Suciu 1:c1f0670bb370 31
Suciu 1:c1f0670bb370 32 uint8_t read_adc_status(void);
Suciu 1:c1f0670bb370 33 uint16_t read_sensor(void);
Suciu 1:c1f0670bb370 34 float read_sensor_voltage(void);
Suciu 1:c1f0670bb370 35 float data_to_voltage(uint16_t data);
Suciu 1:c1f0670bb370 36 float calc_ppm(float adcVoltage);
Suciu 1:c1f0670bb370 37 float read_ppm(void);
Suciu 1:c1f0670bb370 38
Suciu 1:c1f0670bb370 39 void set_RDAC_value(float resistor_val);
Suciu 1:c1f0670bb370 40 float get_RDAC_value(void);
Suciu 1:c1f0670bb370 41 float set_sensor_parameters(float range, float sensitivity);
Suciu 1:c1f0670bb370 42 float get_sensor_range(void);
Suciu 1:c1f0670bb370 43 float get_sensor_sensitivity(void);
Suciu 1:c1f0670bb370 44
Suciu 1:c1f0670bb370 45
Suciu 1:c1f0670bb370 46 AD7790 ad7790; ///< AD7790 instance - can be used for manual overriding
Suciu 1:c1f0670bb370 47 AD5270 ad5270; ///< AD5270 instance - can be used for manual overriding
Suciu 1:c1f0670bb370 48
Suciu 1:c1f0670bb370 49 private:
Suciu 1:c1f0670bb370 50 const static int _RESET = 0xff;
Suciu 1:c1f0670bb370 51 const static int _DEFAULT_MODE_VAL = 0x00;
Suciu 1:c1f0670bb370 52 const static int _DEFAULT_FILTER_VAL = 0x07;
Suciu 1:c1f0670bb370 53 float _sensor_sensitivity;
Suciu 1:c1f0670bb370 54 float _sensor_range;
Suciu 1:c1f0670bb370 55 float _RDACvalue;
Suciu 1:c1f0670bb370 56 void _rdac_init(float resistanceValue);
Suciu 1:c1f0670bb370 57 void _AD7790_init(uint8_t mode_val, uint8_t filter_val);
Suciu 1:c1f0670bb370 58
Suciu 1:c1f0670bb370 59
Suciu 1:c1f0670bb370 60 };
Suciu 1:c1f0670bb370 61
Suciu 1:c1f0670bb370 62 #endif // CN0357_H