Diff: AccelSensor.h

Revision:

0:7dd118f48b1b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AccelSensor.h	Thu Dec 06 17:50:14 2012 +0000
@@ -0,0 +1,33 @@
+#ifndef MBED_NOKIALCD_H
+#define MBED_NOKIALCD_H
+
+#include "mbed.h"
+
+//http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Sensors/Accelerometers/MMA8452Q.pdf
+//http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Sensors/Accelerometers/MMA8452Q-Breakout-v11-fixed.pdf
+//http://cache.freescale.com/files/sensors/doc/app_note/AN4069.pdf
+
+// The SparkFun breakout board defaults to 1, set to 0 if SA0 jumper on the bottom of the board is set
+#define ADDRESS 0x1D // 0x1D if SA0 is high, 0x1C if low
+//Define a few of the registers that we will be accessing on the MMA8452
+#define OUT_X_MSB 0x01 //1
+#define XYZ_DATA_CFG 0x0E //14
+#define WHO_AM_I 0x0D //13
+#define CTRL_REG1 0x2A //42
+#define GSCALE 2 // Sets full-scale range to +/-2, 4, or 8g. Used to calc real g values.
+
+class AccelSensor {
+public:
+    AccelSensor(PinName sda, PinName scl);
+    void active();
+    void standby();
+    void init();
+    void readData(int *destination);
+private:
+    void readRegisters(char reg, int range, char* dest);
+    char readRegister(char reg);
+    void writeRegister(char reg, char data);
+    I2C _i2c;
+};
+
+#endif
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