Diff: FXOS8700.cpp

Revision:

0:a4ffc3c3e770

Child:

1:66ff36d0d1b1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FXOS8700.cpp	Mon Dec 07 08:15:07 2015 +0000
@@ -0,0 +1,72 @@
+ #include "FXOS8700.h"
+ #include "mbed.h"
+
+FXOS8700::FXOS8700(PinName sda, PinName scl) : accelmagi2c(sda,scl)
+ {
+       
+ }
+    
+ void FXOS8700::accel_config(void)
+ {
+   char d[2]; 
+   d[0] = FXOS8700_CTRL_REG1;                     //Puts device in Standby mode
+   d[1] = 0x00; 
+   accelmagi2c.write(FXOS8700_I2C_ADDRESS, d,2);   
+          
+   
+   d[0] = FXOS8700_CTRL_REG1;                     //Puts device in Active mode
+   d[1] = 0x01;
+   accelmagi2c.write(FXOS8700_I2C_ADDRESS, d, 2);   
+      
+ }
+ 
+  void FXOS8700::mag_config(void)
+ {
+   char d[2];
+   d[0] = FXOS8700_CTRL_REG1;                     //Puts device in Standby mode
+   d[1] = 0x00;
+   accelmagi2c.write(FXOS8700_I2C_ADDRESS, d,2);   
+          
+   
+   d[0] = FXOS8700_M_CTRL_REG1;                   //Puts device in hybrid mode (both accel and mag are active)
+   d[1] = 0x03;
+   accelmagi2c.write(FXOS8700_I2C_ADDRESS, d, 2);   
+   
+
+   d[0] = FXOS8700_CTRL_REG1;                     //Puts device in Active mode
+   d[1] = 0x01;
+   accelmagi2c.write(FXOS8700_I2C_ADDRESS, d,2);  
+   
+ }
+ 
+ void FXOS8700::acquire_accel_data_g(float * a_data)
+ {
+  
+   char data_bytes[7];
+   char d[1];
+   d[0]=FXOS8700_STATUS;
+   accelmagi2c.write(FXOS8700_I2C_ADDRESS,d,1,true);  // Read the 6 data bytes - LSB and MSB for X, Y and Z Axes.
+   accelmagi2c.read(FXOS8700_I2C_ADDRESS,data_bytes,7);
+   
+   a_data[0] =  ((float)((int16_t)(((data_bytes[1]*256) + (data_bytes[2])))>> 2) * 0.000244);
+   a_data[1] =  ((float)((int16_t)(((data_bytes[3]*256) + (data_bytes[4])))>> 2) * 0.000244);
+   a_data[2] =  ((float)((int16_t)(((data_bytes[5]*256) + (data_bytes[6])))>> 2) * 0.000244);
+   
+ }
+
+ void FXOS8700::acquire_mag_data_uT(float * m_data)
+ {
+  
+   char data_bytes[7];
+   char d[1];
+   d[0]=FXOS8700_MDR_STATUS;
+   accelmagi2c.write(FXOS8700_I2C_ADDRESS,d,1,true);  // Read the 6 data bytes - LSB and MSB for X, Y and Z Axes.
+   accelmagi2c.read(FXOS8700_I2C_ADDRESS,data_bytes,7);
+   
+   m_data[0] =  (float)((int16_t)((data_bytes[1]*256) + (data_bytes[2]))) * 0.1;
+   m_data[1] =  (float)((int16_t)((data_bytes[3]*256) + (data_bytes[4]))) * 0.1;
+   m_data[2] =  (float)((int16_t)((data_bytes[5]*256) + (data_bytes[6]))) * 0.1;
+   
+ }
+     
+     
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