Revision 0:a4ffc3c3e770, committed 2015-12-07

Comitter:

AswinSivakumar

Date:

Mon Dec 07 08:15:07 2015 +0000

Child:

1:66ff36d0d1b1

Commit message:

Initial commit

Changed in this revision

--- /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;
+   
+ }
+     
+     
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FXOS8700.h	Mon Dec 07 08:15:07 2015 +0000
@@ -0,0 +1,51 @@
+/* Copyright (c) 2010-2011 mbed.org, MIT License
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+* and associated documentation files (the "Software"), to deal in the Software without
+* restriction, including without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
+* Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in all copies or
+* substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#ifndef FXOS8700_H
+#define FXOS8700_H
+#include "mbed.h"
+
+#define FXOS8700_I2C_ADDRESS (0x1E<<1) //pins SA0,SA1=0
+
+#define FXOS8700_STATUS 0x00
+#define FXOS8700_MDR_STATUS 0x32
+#define FXOS8700_WHO_AM_I 0x0D
+#define FXOS8700_CTRL_REG1 0x2A
+#define FXOS8700_M_CTRL_REG1 0x5B
+#define FXOS8700_WHO_AM_I_VALUE 0xC7
+
+class FXOS8700
+{
+    public:
+    
+    FXOS8700(PinName sda, PinName scl);
+      
+    void accel_config(void);
+    
+    void mag_config(void);
+        
+    void acquire_accel_data_g(float * da);
+    
+    void acquire_mag_data_uT(float * dm);
+    
+    private:
+    I2C accelmagi2c;
+    
+};
+
+#endif
\ No newline at end of file