An in-development library to provide effective access to all features of the FXOS8700CQ on the FRDM-K64F mbed-enabled development board. As of 28 May 2014 1325EDT, the code should be generally usable and modifiable.

Revision:
3:2ce85aa45d7d
Parent:
2:4c2f8a3549a9
Child:
4:e2fe752b881e
--- a/FXOS8700CQ.h	Wed May 28 17:08:33 2014 +0000
+++ b/FXOS8700CQ.h	Wed May 28 18:38:09 2014 +0000
@@ -116,7 +116,7 @@
 * A driver on top of mbed-I2C to operate the FXOS8700CQ accelerometer/magnetometer
 * on the FRDM-K64F.
 *
-* Warning: incomplete code!
+* Code has been completed, but likely not optimized and potentially buggy.
 */
 class FXOS8700CQ
 {
@@ -137,9 +137,18 @@
 
     void enable(void);
     void disable(void);
+
+    /**
+    * @return the contents of device register FXOS8700CQ_WHOAMI 0x0D,
+    * should be FXOS8700CQ_WHOAMI_VAL 0xC7
+    */
     uint8_t get_whoami(void);
+    
+    /**
+    * @return the contents of device register FXOS8700CQ_STATUS 0x00
+    */
     uint8_t status(void);
-    
+
     /**
     * Data retrieval from the FXOS8700CQ
     *
@@ -148,10 +157,10 @@
     * @return 0 on success, non-zero on failure
     */
     uint8_t get_data(SRAWDATA *accel_data, SRAWDATA *magn_data);
-    
+
     /**
     * Retrieve the full-range scale value of the accelerometer
-    * 
+    *
     * @return 2, 4, or 8, depending on part configuration; 0 on error
     */
     uint8_t get_accel_scale(void);
@@ -161,7 +170,7 @@
 private:
     I2C dev_i2c; // instance of the mbed I2C class
     uint8_t dev_addr; // Device I2C address, in (7-bit << 1) form
-    bool enabled;
+    bool enabled; // keep track of enable bit of device
 
     // I2C helper methods
     void read_regs(int reg_addr, uint8_t* data, int len);