modified version of MAG3110, include getX();getY();and getZ()

Dependents:   202Ahm1

Fork of MAG3110 by Aaron Huang

Files at this revision

API Documentation at this revision

Comitter:
allonq
Date:
Thu Feb 13 01:58:54 2014 +0000
Parent:
5:888035fbef65
Commit message:
create three functions:; float MAG3110::getX();; float MAG3110::getY();; float MAG3110::getZ();; This three functions make the code works more direct

Changed in this revision

MAG3110.cpp Show annotated file Show diff for this revision Revisions of this file
MAG3110.h Show annotated file Show diff for this revision Revisions of this file
--- a/MAG3110.cpp	Fri Feb 07 00:33:01 2014 +0000
+++ b/MAG3110.cpp	Thu Feb 13 01:58:54 2014 +0000
@@ -50,7 +50,7 @@
 
 // read a register per, pass first reg value, reading 2 bytes increments register
 // Reads MSB first then LSB
-int MAG3110::readVal(char regAddr)
+float MAG3110::readVal(char regAddr)
 {
     char cmd[2];
 
@@ -60,24 +60,35 @@
     cmd[0] = 0x00;
     cmd[1] = 0x00;
     _i2c.read(_i2c_address, cmd, 2);
-    return (int)( (cmd[1]|(cmd[0] << 8))); //concatenate the MSB and LSB
+    return (float)( (cmd[1]|(cmd[0] << 8))); //concatenate the MSB and LSB
 }
 
 
 float MAG3110::getHeading()
 {
-    int xVal = readVal(MAG_OUT_X_MSB);
-    int yVal = readVal(MAG_OUT_Y_MSB);
+    float xVal = readVal(MAG_OUT_X_MSB);
+    float yVal = readVal(MAG_OUT_Y_MSB);
     return (atan2((double)(yVal - _avgY),(double)(xVal - _avgX)))*180/PI;
 }
 
-void MAG3110::getValues(int *xVal, int *yVal, int *zVal)
+void MAG3110::getValues(float *xVal, float *yVal, float *zVal)
 {
     *xVal = readVal(MAG_OUT_X_MSB);
     *yVal = readVal(MAG_OUT_Y_MSB);
     *zVal = readVal(MAG_OUT_Z_MSB);
 }
-
+float MAG3110::getX()
+{
+    return readVal(MAG_OUT_X_MSB);
+}
+float MAG3110::getY()
+{
+    return readVal(MAG_OUT_Y_MSB);
+}
+float MAG3110::getZ()
+{
+    return readVal(MAG_OUT_Z_MSB);
+}
 
 void MAG3110::setCalibration(int minX, int maxX, int minY, int maxY )
 {
--- a/MAG3110.h	Fri Feb 07 00:33:01 2014 +0000
+++ b/MAG3110.h	Thu Feb 13 01:58:54 2014 +0000
@@ -111,7 +111,7 @@
      * @param regAddr The address to read
      * @return Value from 2 consecutive registers
      */
-    int readVal(char regAddr);
+    float readVal(char regAddr);
     /**
      * Calculate the heading
      * @return heading in degrees
@@ -123,7 +123,7 @@
      * @param yVal Pointer to Y value
      * @param zVal Pointer to Z value
      */
-    void getValues(int *xVal, int *yVal, int *zVal);
+    void getValues(float *xVal, float *yVal, float *zVal);
     /**
      * Set the calibration parameters if required.
      * @param minX Minimum value for X range
@@ -132,6 +132,9 @@
      * @param maxY maximum value for Y range
      */
     void setCalibration(int minX, int maxX, int minY, int maxY);
+    float getX();
+    float getY();
+    float getZ();
 
 private:
     I2C _i2c;