Revision 5:aa4b323655dc, committed 2014-03-29

Comitter:

goy5022

Date:

Sat Mar 29 03:06:36 2014 +0000

Parent:

4:612f7d5a822d

Commit message:

because steve thinks so;

Changed in this revision

--- a/LSM303DLHC.cpp	Thu Feb 21 00:20:17 2013 +0000
+++ b/LSM303DLHC.cpp	Sat Mar 29 03:06:36 2014 +0000
@@ -126,6 +126,21 @@
     return false;
 }
 
+bool LSM303DLHC::read(float *ax, float *ay, float *az) {
+    char acc[6];
+ 
+    if (recv(addr_acc, OUT_X_A, acc, 6)) {
+        *ax = float(short(acc[1] << 8 | acc[0]))/8192;  //32768/4=8192
+        *ay =  float(short(acc[3] << 8 | acc[2]))/8192;
+        *az =  float(short(acc[5] << 8 | acc[4]))/8192;
+        //full scale magnetic readings are from -2048 to 2047
+        //gain is x,y =1100; z = 980 LSB/gauss
+ 
+        return true;
+    }
+ 
+    return false;
+}
 
 bool LSM303DLHC::recv(char sad, char sub, char *buf, int length) {
     if (length > 1) sub |= 0x80;

--- a/LSM303DLHC.h	Thu Feb 21 00:20:17 2013 +0000
+++ b/LSM303DLHC.h	Sat Mar 29 03:06:36 2014 +0000
@@ -3,8 +3,6 @@
 #define __LSM303DLHC_H
 #include "mbed.h"
 
-
-
 class LSM303DLHC {
     public:
         /** Create a new interface for an LSM303DLHC
@@ -21,11 +19,10 @@
          * @param mx,my,mz is the magnetometer 3d vector, written by the function
          */
          bool read(float *ax, float *ay, float *az, float *mx, float *my, float *mz);
-
+         bool read(float *ax, float *ay, float *az);
 
     private:
         I2C _LSM303;
-
          
         float ax, ay, az;
         float mx, my, mz;