JP PANG / MPL3115A2

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Dependents:   XtrinsicSensorEVK

Fork of MPL3115A2 by clemente di caprio

MPL3115A2.h@5:9edec5ee8bf4, 2013-08-22 (annotated)

Committer:
clemente
Date:
Thu Aug 22 12:03:19 2013 +0000
Revision:
5:9edec5ee8bf4
Parent:
4:fdf14a259af8
Child:
6:03c24251e500
Added function to read raw data in polling mode. Minor change.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
clemente 0:cfecfabc5e23 1 #ifndef MPL3115A2_H
clemente 0:cfecfabc5e23 2 #define MPL3115A2_H
clemente 0:cfecfabc5e23 3
clemente 0:cfecfabc5e23 4 #include "mbed.h"
clemente 0:cfecfabc5e23 5
clemente 3:a2f1752add9a 6 // Oversampling value and minimum time between sample
clemente 3:a2f1752add9a 7 #define OVERSAMPLE_RATIO_1 0 // 6 ms
clemente 3:a2f1752add9a 8 #define OVERSAMPLE_RATIO_2 1 // 10 ms
clemente 3:a2f1752add9a 9 #define OVERSAMPLE_RATIO_4 2 // 18 ms
clemente 3:a2f1752add9a 10 #define OVERSAMPLE_RATIO_8 3 // 34 ms
clemente 3:a2f1752add9a 11 #define OVERSAMPLE_RATIO_16 4 // 66 ms
clemente 3:a2f1752add9a 12 #define OVERSAMPLE_RATIO_32 5 // 130 ms
clemente 3:a2f1752add9a 13 #define OVERSAMPLE_RATIO_64 6 // 258 ms
clemente 3:a2f1752add9a 14 #define OVERSAMPLE_RATIO_128 7 // 512 ms
clemente 0:cfecfabc5e23 15
clemente 0:cfecfabc5e23 16 /* Mode */
clemente 0:cfecfabc5e23 17 #define ALTIMETER_MODE 1
clemente 0:cfecfabc5e23 18 #define BAROMETRIC_MODE 2
clemente 0:cfecfabc5e23 19
clemente 0:cfecfabc5e23 20 /**
clemente 0:cfecfabc5e23 21 * MPL3115A2 Altimeter example
clemente 0:cfecfabc5e23 22 *
clemente 0:cfecfabc5e23 23 * @code
clemente 0:cfecfabc5e23 24 * #include "mbed.h"
clemente 0:cfecfabc5e23 25 * #include "MPL3115A2.h"
clemente 0:cfecfabc5e23 26 *
clemente 0:cfecfabc5e23 27 * #define MPL3115A2_I2C_ADDRESS (0x60<<1)
clemente 1:30a04f651efe 28 * MPL3115A2 wigo_sensor1(PTE0, PTE1, MPL3115A2_I2C_ADDRESS);
clemente 0:cfecfabc5e23 29 * Serial pc(USBTX, USBRX);
clemente 0:cfecfabc5e23 30 *
clemente 1:30a04f651efe 31 * // pos [0] = altitude or pressure value
clemente 1:30a04f651efe 32 * // pos [1] = temperature value
clemente 1:30a04f651efe 33 * float sensor_data[2];
clemente 1:30a04f651efe 34 *
clemente 0:cfecfabc5e23 35 * int main(void) {
clemente 0:cfecfabc5e23 36 *
clemente 0:cfecfabc5e23 37 * pc.baud( 230400);
clemente 0:cfecfabc5e23 38 * pc.printf("MPL3115A2 Altimeter mode. [%d]\r\n", wigo_sensor1.getDeviceID());
clemente 0:cfecfabc5e23 39 *
clemente 0:cfecfabc5e23 40 * wigo_sensor1.Oversample_Ratio( OVERSAMPLE_RATIO_32);
clemente 0:cfecfabc5e23 41 *
clemente 0:cfecfabc5e23 42 * while(1) {
clemente 0:cfecfabc5e23 43 * //
clemente 0:cfecfabc5e23 44 * if ( wigo_sensor1.isDataAvailable()) {
clemente 0:cfecfabc5e23 45 * wigo_sensor1.getAllData( &sensor_data[0]);
clemente 1:30a04f651efe 46 * pc.printf("\tAltitude: %f\tTemperature: %f\r\n", sensor_data[0], sensor_data[1]);
clemente 0:cfecfabc5e23 47 * }
clemente 0:cfecfabc5e23 48 * //
clemente 0:cfecfabc5e23 49 * wait( 0.001);
clemente 0:cfecfabc5e23 50 * }
clemente 0:cfecfabc5e23 51 *
clemente 0:cfecfabc5e23 52 * }
clemente 0:cfecfabc5e23 53 * @endcode
clemente 0:cfecfabc5e23 54 */
clemente 0:cfecfabc5e23 55 class MPL3115A2
clemente 0:cfecfabc5e23 56 {
clemente 0:cfecfabc5e23 57 public:
clemente 2:a2fcfb7ff611 58 /**
clemente 2:a2fcfb7ff611 59 * MPL3115A2 constructor
clemente 2:a2fcfb7ff611 60 *
clemente 2:a2fcfb7ff611 61 * @param sda SDA pin
clemente 2:a2fcfb7ff611 62 * @param sdl SCL pin
clemente 2:a2fcfb7ff611 63 * @param addr addr of the I2C peripheral
clemente 2:a2fcfb7ff611 64 */
clemente 2:a2fcfb7ff611 65 MPL3115A2(PinName sda, PinName scl, int addr);
clemente 2:a2fcfb7ff611 66
clemente 2:a2fcfb7ff611 67 /**
clemente 2:a2fcfb7ff611 68 * Get the value of the WHO_AM_I register
clemente 2:a2fcfb7ff611 69 *
clemente 2:a2fcfb7ff611 70 * @returns DEVICE_ID value == 0xC4
clemente 2:a2fcfb7ff611 71 */
clemente 2:a2fcfb7ff611 72 uint8_t getDeviceID();
clemente 2:a2fcfb7ff611 73
clemente 2:a2fcfb7ff611 74 /**
clemente 2:a2fcfb7ff611 75 * Return the STATUS register value
clemente 2:a2fcfb7ff611 76 *
clemente 2:a2fcfb7ff611 77 * @returns STATUS register value
clemente 2:a2fcfb7ff611 78 */
clemente 2:a2fcfb7ff611 79 unsigned char getStatus( void);
clemente 2:a2fcfb7ff611 80
clemente 2:a2fcfb7ff611 81 /**
clemente 2:a2fcfb7ff611 82 * Get the altimeter value
clemente 2:a2fcfb7ff611 83 *
clemente 2:a2fcfb7ff611 84 * @returns altimeter value as float
clemente 2:a2fcfb7ff611 85 */
clemente 2:a2fcfb7ff611 86 float getAltimeter( void);
clemente 5:9edec5ee8bf4 87
clemente 5:9edec5ee8bf4 88 /**
clemente 5:9edec5ee8bf4 89 * Get the altimeter value in raw mode
clemente 5:9edec5ee8bf4 90 *
clemente 5:9edec5ee8bf4 91 * @param dt pointer to unsigned char array
clemente 5:9edec5ee8bf4 92 * @returns status as 1
clemente 5:9edec5ee8bf4 93 */
clemente 5:9edec5ee8bf4 94 unsigned int getAltimeterRaw( unsigned char *dt);
clemente 2:a2fcfb7ff611 95
clemente 2:a2fcfb7ff611 96 /**
clemente 2:a2fcfb7ff611 97 * Get the pressure value
clemente 2:a2fcfb7ff611 98 *
clemente 2:a2fcfb7ff611 99 * @returns pressure value as float
clemente 2:a2fcfb7ff611 100 */
clemente 2:a2fcfb7ff611 101 float getPressure( void);
clemente 5:9edec5ee8bf4 102
clemente 5:9edec5ee8bf4 103 /**
clemente 5:9edec5ee8bf4 104 * Get the pressure value in raw mode
clemente 5:9edec5ee8bf4 105 *
clemente 5:9edec5ee8bf4 106 * @param dt pointer to unsigned char array
clemente 5:9edec5ee8bf4 107 * @returns status as 1
clemente 5:9edec5ee8bf4 108 */
clemente 5:9edec5ee8bf4 109 unsigned int getPressureRaw( unsigned char *dt);
clemente 2:a2fcfb7ff611 110
clemente 2:a2fcfb7ff611 111 /**
clemente 2:a2fcfb7ff611 112 * Get the temperature value
clemente 2:a2fcfb7ff611 113 *
clemente 2:a2fcfb7ff611 114 * @returns temperature value as float
clemente 2:a2fcfb7ff611 115 */
clemente 2:a2fcfb7ff611 116 float getTemperature( void);
clemente 5:9edec5ee8bf4 117
clemente 5:9edec5ee8bf4 118 /**
clemente 5:9edec5ee8bf4 119 * Get the temperature value in raw mode
clemente 5:9edec5ee8bf4 120 *
clemente 5:9edec5ee8bf4 121 * @param dt pointer to unsigned char array
clemente 5:9edec5ee8bf4 122 * @returns status as 1
clemente 5:9edec5ee8bf4 123 */
clemente 5:9edec5ee8bf4 124 unsigned int getTemperatureRaw( unsigned char *dt);
clemente 2:a2fcfb7ff611 125
clemente 2:a2fcfb7ff611 126 /**
clemente 2:a2fcfb7ff611 127 * Set the Altimeter Mode
clemente 2:a2fcfb7ff611 128 *
clemente 2:a2fcfb7ff611 129 * @returns none
clemente 2:a2fcfb7ff611 130 */
clemente 2:a2fcfb7ff611 131 void Altimeter_Mode( void);
clemente 2:a2fcfb7ff611 132
clemente 2:a2fcfb7ff611 133 /**
clemente 2:a2fcfb7ff611 134 * Set the Barometric Mode
clemente 2:a2fcfb7ff611 135 *
clemente 2:a2fcfb7ff611 136 * @returns none
clemente 2:a2fcfb7ff611 137 */
clemente 2:a2fcfb7ff611 138 void Barometric_Mode( void);
clemente 2:a2fcfb7ff611 139
clemente 2:a2fcfb7ff611 140 /**
clemente 5:9edec5ee8bf4 141 * Get the altimeter or pressure and temperature values
clemente 2:a2fcfb7ff611 142 *
clemente 5:9edec5ee8bf4 143 * @param array of float f[2]
clemente 2:a2fcfb7ff611 144 * @returns none
clemente 2:a2fcfb7ff611 145 */
clemente 2:a2fcfb7ff611 146 void getAllData( float *f);
clemente 5:9edec5ee8bf4 147
clemente 5:9edec5ee8bf4 148 /**
clemente 5:9edec5ee8bf4 149 * Get the altimeter or pressure, and temperature values in raw mode
clemente 5:9edec5ee8bf4 150 *
clemente 5:9edec5ee8bf4 151 * @param array of unsigned char[5]
clemente 5:9edec5ee8bf4 152 * @returns staus as 1
clemente 5:9edec5ee8bf4 153 */
clemente 5:9edec5ee8bf4 154 unsigned int getAllDataRaw( unsigned char *dt);
clemente 2:a2fcfb7ff611 155
clemente 2:a2fcfb7ff611 156 /**
clemente 2:a2fcfb7ff611 157 * Return if there are date available
clemente 2:a2fcfb7ff611 158 *
clemente 2:a2fcfb7ff611 159 * @return 1 for data available, 0 for no data available
clemente 2:a2fcfb7ff611 160 */
clemente 2:a2fcfb7ff611 161 unsigned int isDataAvailable( void);
clemente 2:a2fcfb7ff611 162
clemente 2:a2fcfb7ff611 163 /**
clemente 2:a2fcfb7ff611 164 * Set the oversampling rate value
clemente 2:a2fcfb7ff611 165 *
clemente 2:a2fcfb7ff611 166 * @param oversampling values. See MPL3115A2.h
clemente 2:a2fcfb7ff611 167 * @return none
clemente 2:a2fcfb7ff611 168 */
clemente 2:a2fcfb7ff611 169 void Oversample_Ratio( unsigned int ratio);
clemente 0:cfecfabc5e23 170
clemente 2:a2fcfb7ff611 171 /**
clemente 2:a2fcfb7ff611 172 * Configure the sensor to streaming data using Interrupt
clemente 2:a2fcfb7ff611 173 *
clemente 2:a2fcfb7ff611 174 * @param user functin callback, oversampling values. See MPL3115A2.h
clemente 2:a2fcfb7ff611 175 * @return none
clemente 2:a2fcfb7ff611 176 */
clemente 2:a2fcfb7ff611 177 void DataReady( void(*fptr)(void), unsigned char OS);
clemente 3:a2f1752add9a 178
clemente 3:a2f1752add9a 179 /**
clemente 4:fdf14a259af8 180 * Configure the sensor to generate an Interrupt crossing the center threshold
clemente 3:a2f1752add9a 181 *
clemente 4:fdf14a259af8 182 * @param user functin callback, level in meter
clemente 3:a2f1752add9a 183 * @return none
clemente 3:a2f1752add9a 184 */
clemente 3:a2f1752add9a 185 void AltitudeTrigger( void(*fptr)(void), unsigned short level);
clemente 2:a2fcfb7ff611 186
clemente 2:a2fcfb7ff611 187 /**
clemente 2:a2fcfb7ff611 188 * Soft Reset
clemente 2:a2fcfb7ff611 189 *
clemente 2:a2fcfb7ff611 190 * @param none
clemente 2:a2fcfb7ff611 191 * @return none
clemente 2:a2fcfb7ff611 192 */
clemente 2:a2fcfb7ff611 193 void Reset( void);
clemente 0:cfecfabc5e23 194
clemente 0:cfecfabc5e23 195 private:
clemente 2:a2fcfb7ff611 196 I2C m_i2c;
clemente 2:a2fcfb7ff611 197 int m_addr;
clemente 2:a2fcfb7ff611 198 unsigned char MPL3115A2_mode;
clemente 2:a2fcfb7ff611 199 unsigned char MPL3115A2_oversampling;
clemente 2:a2fcfb7ff611 200 void DataReady_IRQ( void);
clemente 3:a2f1752add9a 201 void AltitudeTrg_IRQ( void);
clemente 2:a2fcfb7ff611 202
clemente 2:a2fcfb7ff611 203 /** Set the device in active mode
clemente 2:a2fcfb7ff611 204 */
clemente 2:a2fcfb7ff611 205 void Active( void);
clemente 2:a2fcfb7ff611 206
clemente 2:a2fcfb7ff611 207 /** Set the device in standby mode
clemente 2:a2fcfb7ff611 208 */
clemente 2:a2fcfb7ff611 209 void Standby( void);
clemente 2:a2fcfb7ff611 210
clemente 2:a2fcfb7ff611 211 void readRegs(int addr, uint8_t * data, int len);
clemente 2:a2fcfb7ff611 212 void writeRegs(uint8_t * data, int len);
clemente 0:cfecfabc5e23 213
clemente 0:cfecfabc5e23 214 };
clemente 0:cfecfabc5e23 215
clemente 0:cfecfabc5e23 216 #endif