Independant Maker Space Program / FXAS21000

Modified FXAS21000 library. changed _i2c to a pointer allowing you to pass an existing I2C object to the library instead of initializing a new one each time. This is mainly to make this library more practical to use alongside other I2C sensors.

Fork of FXAS21000 by Jim Carver

Files at this revision

API Documentation at this revision

Revision 4:c411fbb2cc2f, committed 2015-08-17

Comitter:
clwillingham
Date:
Mon Aug 17 18:25:11 2015 +0000
Parent:
3:a8f83b52f4df
Commit message:
changed i2c to pointer reference to make initialization more generic and compatible with other sensor libraries

Changed in this revision

FXAS21000.cpp Show annotated file Show diff for this revision Revisions of this file
FXAS21000.h Show annotated file Show diff for this revision Revisions of this file 
diff -r a8f83b52f4df -r c411fbb2cc2f FXAS21000.cpp
--- a/FXAS21000.cpp	Mon Jun 02 17:36:38 2014 +0000
+++ b/FXAS21000.cpp	Mon Aug 17 18:25:11 2015 +0000
@@ -1,7 +1,11 @@
  #include "FXAS21000.h"
  
-FXAS21000::FXAS21000(PinName sda, PinName scl) : _i2c(sda, scl) {
- 
+FXAS21000::FXAS21000(PinName sda, PinName scl) {
+    _i2c = new I2C(sda, scl);
+    begin();
+}
+
+FXAS21000::FXAS21000(I2C *i2c): _i2c(i2c){
     begin();
 }
               
@@ -10,8 +14,8 @@
     char cmd[1];
     cmd[0] = reg;
 char i2c_addr = FXAS21000_SLAVE_ADDR;
-_i2c.write( i2c_addr, cmd, 1, true);
-_i2c.read ( i2c_addr, d, len);
+_i2c->write( i2c_addr, cmd, 1, true);
+_i2c->read ( i2c_addr, d, len);
 }
 
 void FXAS21000::begin(void)
@@ -23,17 +27,17 @@
     // [0]: active=0
     data[0] = FXAS21000_CTRL_REG1;
     data[1] = 0x08;
-    _i2c.write( FXAS21000_SLAVE_ADDR, data, 2);
+    _i2c->write( FXAS21000_SLAVE_ADDR, data, 2);
     
     // write 0001 1011 to CRTL_REG0 register
     data[0] = FXAS21000_CTRL_REG0;
     data[1] = 0x1B;
-    _i2c.write( FXAS21000_SLAVE_ADDR, data, 2);
+    _i2c->write( FXAS21000_SLAVE_ADDR, data, 2);
 
     // write 0000 1001 to gyro control register 1
     data[0] = FXAS21000_CTRL_REG1;
     data[1] = 0x0A;
-    _i2c.write( FXAS21000_SLAVE_ADDR, data, 2);
+    _i2c->write( FXAS21000_SLAVE_ADDR, data, 2);
 }
 
 char FXAS21000::getWhoAmI(void)

diff -r a8f83b52f4df -r c411fbb2cc2f FXAS21000.h
--- a/FXAS21000.h	Mon Jun 02 17:36:38 2014 +0000
+++ b/FXAS21000.h	Mon Aug 17 18:25:11 2015 +0000
@@ -48,6 +48,7 @@
      * @param sdl SCL pin
      */
     FXAS21000(PinName sda, PinName scl);
+    FXAS21000(I2C *i2c);
  
     /**
      * Get the Gyro values as floating point degrees / second
@@ -71,7 +72,7 @@
     char getWhoAmI(void);
     
 private:
-    I2C _i2c;
+    I2C *_i2c;
 
     /**
      * Set the device in active mode