Diff: MMA8452Q.h

Revision:

0:b3305e3c9e73

Child:

1:2b812ae875eb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MMA8452Q.h	Thu Oct 19 12:53:02 2017 +0000
@@ -0,0 +1,68 @@
+// Library for our MMA8452Q 3-axis accelerometer
+// Based on the MMA8452Q Arduino Library by Jim Lindblom (SparkFun Electronics)
+
+#ifndef MMA8452Q_H
+#define MMA8452Q_H
+
+#include "mbed.h"
+
+// Register definitions
+#define REG_STATUS          0x00
+#define OUT_X_MSB           0x01
+#define OUT_X_LSB           0x02
+#define OUT_Y_MSB           0x03
+#define OUT_Y_LSB           0x04
+#define OUT_Z_MSB           0x05
+#define OUT_Z_LSB           0x06
+#define REG_WHO_AM_I        0x0D
+#define REG_XYZ_DATA_CFG    0x0E
+#define REG_CTRL_REG1       0x2A
+
+// WHO_AM_I check
+#define FACTORY_ID          0x2A
+
+// Scale definitions
+#define SCALE_2G            2
+#define SCALE_4G            4
+#define SCALE_8G            8
+
+// Data rates
+#define ODR_800HZ           0
+#define ODR_400HZ           1
+#define ODR_200HZ           2
+#define ODR_100HZ           3
+#define ODR_50HZ            4
+#define ODR_12_5HZ          5
+#define ODR_6_25HZ          6
+#define ODR_1_56HZ          7
+
+// Init values
+#define DEFAULT_FSR         SCALE_2G
+#define DEFAULT_ODR         ODR_800HZ
+
+
+// Class declaration
+class MMA8452Q
+{
+    public:
+        MMA8452Q(PinName sda, PinName scl, int addr);
+        ~MMA8452Q();
+        bool init();
+        uint8_t available();
+        void setScale(uint8_t fsr);
+        void setODR(uint8_t odr);
+        void standby();
+        void active();
+        float readX();
+        float readY();
+        float readZ();
+        uint8_t readRegister(uint8_t reg);
+        void writeRegister(uint8_t reg, uint8_t data);
+
+    private:
+        I2C m_i2c;
+        int m_addr;
+        int scale;
+};
+
+#endif
\ No newline at end of file