Kaitlyn Barros / MMA8452Q

Updated OCE 360 Assignment 4

Dependents:   Barros_Assignment4

MMA8452Q.h@2:1d10bcf263d2, 2017-12-07 (annotated)

Committer:
Kaitlyn_Barros
Date:
Thu Dec 07 23:20:41 2017 +0000
Revision:
2:1d10bcf263d2
Parent:
0:098406435cd2 
Assignment 6. Attempt to employ free fall register.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kaitlyn_Barros 0:098406435cd2 1 // Library for our MMA8452Q 3-axis accelerometer
Kaitlyn_Barros 0:098406435cd2 2 // Based on the MMA8452Q Arduino Library by Jim Lindblom (SparkFun Electronics)
Kaitlyn_Barros 0:098406435cd2 3
Kaitlyn_Barros 0:098406435cd2 4 #ifndef MMA8452Q_H
Kaitlyn_Barros 0:098406435cd2 5 #define MMA8452Q_H
Kaitlyn_Barros 0:098406435cd2 6
Kaitlyn_Barros 0:098406435cd2 7 #include "mbed.h"
Kaitlyn_Barros 0:098406435cd2 8
Kaitlyn_Barros 0:098406435cd2 9 // Register definitions
Kaitlyn_Barros 0:098406435cd2 10 #define REG_STATUS 0x00
Kaitlyn_Barros 0:098406435cd2 11 #define OUT_X_MSB 0x01
Kaitlyn_Barros 0:098406435cd2 12 #define OUT_X_LSB 0x02
Kaitlyn_Barros 0:098406435cd2 13 #define OUT_Y_MSB 0x03
Kaitlyn_Barros 0:098406435cd2 14 #define OUT_Y_LSB 0x04
Kaitlyn_Barros 0:098406435cd2 15 #define OUT_Z_MSB 0x05
Kaitlyn_Barros 0:098406435cd2 16 #define OUT_Z_LSB 0x06
Kaitlyn_Barros 0:098406435cd2 17 #define REG_WHO_AM_I 0x0D
Kaitlyn_Barros 0:098406435cd2 18 #define REG_XYZ_DATA_CFG 0x0E
Kaitlyn_Barros 0:098406435cd2 19 #define REG_CTRL_REG1 0x2A
Kaitlyn_Barros 2:1d10bcf263d2 20 #define REG_FF_MT_CFG 0x15
Kaitlyn_Barros 0:098406435cd2 21
Kaitlyn_Barros 0:098406435cd2 22 // WHO_AM_I check
Kaitlyn_Barros 0:098406435cd2 23 #define FACTORY_ID 0x2A
Kaitlyn_Barros 0:098406435cd2 24
Kaitlyn_Barros 0:098406435cd2 25 // Scale definitions
Kaitlyn_Barros 0:098406435cd2 26 #define SCALE_2G 2
Kaitlyn_Barros 0:098406435cd2 27 #define SCALE_4G 4
Kaitlyn_Barros 0:098406435cd2 28 #define SCALE_8G 8
Kaitlyn_Barros 0:098406435cd2 29
Kaitlyn_Barros 0:098406435cd2 30 // Data rates
Kaitlyn_Barros 0:098406435cd2 31 #define ODR_800HZ 0
Kaitlyn_Barros 0:098406435cd2 32 #define ODR_400HZ 1
Kaitlyn_Barros 0:098406435cd2 33 #define ODR_200HZ 2
Kaitlyn_Barros 0:098406435cd2 34 #define ODR_100HZ 3
Kaitlyn_Barros 0:098406435cd2 35 #define ODR_50HZ 4
Kaitlyn_Barros 0:098406435cd2 36 #define ODR_12_5HZ 5
Kaitlyn_Barros 0:098406435cd2 37 #define ODR_6_25HZ 6
Kaitlyn_Barros 0:098406435cd2 38 #define ODR_1_56HZ 7
Kaitlyn_Barros 0:098406435cd2 39
Kaitlyn_Barros 0:098406435cd2 40 // Init values
Kaitlyn_Barros 0:098406435cd2 41 #define DEFAULT_FSR SCALE_2G
Kaitlyn_Barros 0:098406435cd2 42 #define DEFAULT_ODR ODR_800HZ
Kaitlyn_Barros 0:098406435cd2 43
Kaitlyn_Barros 0:098406435cd2 44
Kaitlyn_Barros 0:098406435cd2 45 // Class declaration
Kaitlyn_Barros 0:098406435cd2 46 class MMA8452Q
Kaitlyn_Barros 0:098406435cd2 47 {
Kaitlyn_Barros 0:098406435cd2 48 public:
Kaitlyn_Barros 0:098406435cd2 49 MMA8452Q(PinName sda, PinName scl, int addr);
Kaitlyn_Barros 0:098406435cd2 50 ~MMA8452Q();
Kaitlyn_Barros 0:098406435cd2 51 bool init();
Kaitlyn_Barros 0:098406435cd2 52 uint8_t available();
Kaitlyn_Barros 0:098406435cd2 53 void setScale(uint8_t fsr);
Kaitlyn_Barros 0:098406435cd2 54 void setODR(uint8_t odr);
Kaitlyn_Barros 0:098406435cd2 55 void standby();
Kaitlyn_Barros 0:098406435cd2 56 void active();
Kaitlyn_Barros 2:1d10bcf263d2 57 void standby1();
Kaitlyn_Barros 2:1d10bcf263d2 58 void active1();
Kaitlyn_Barros 0:098406435cd2 59 float readX();
Kaitlyn_Barros 0:098406435cd2 60 float readY();
Kaitlyn_Barros 0:098406435cd2 61 float readZ();
Kaitlyn_Barros 0:098406435cd2 62 uint8_t readRegister(uint8_t reg);
Kaitlyn_Barros 0:098406435cd2 63 void writeRegister(uint8_t reg, uint8_t data);
Kaitlyn_Barros 0:098406435cd2 64
Kaitlyn_Barros 0:098406435cd2 65 private:
Kaitlyn_Barros 0:098406435cd2 66 I2C m_i2c;
Kaitlyn_Barros 0:098406435cd2 67 int m_addr;
Kaitlyn_Barros 0:098406435cd2 68 int scale;
Kaitlyn_Barros 0:098406435cd2 69 };
Kaitlyn_Barros 0:098406435cd2 70
Kaitlyn_Barros 0:098406435cd2 71 #endif