Tedd OKANO
/
PCT2075_Hello
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Diff: PCT2075/base_class/I2CTempSensor.cpp
- Revision:
- 0:3c3d4c5ac8e9
- Child:
- 1:5398b0799e20
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/PCT2075/base_class/I2CTempSensor.cpp Fri Feb 27 10:47:24 2015 +0000
@@ -0,0 +1,41 @@
+#include "I2CTempSensor.h"
+
+I2CTempSensor::I2CTempSensor( PinName i2c_sda, PinName i2c_scl, char address )
+ : i2c_p( new I2C( i2c_sda, i2c_scl ) ), i2c( *i2c_p ), adr( address )
+{
+ init();
+}
+
+I2CTempSensor::I2CTempSensor( I2C &i2c_obj, char address )
+ : i2c_p( NULL ), i2c( i2c_obj ), adr( address )
+{
+ init();
+}
+
+I2CTempSensor::~I2CTempSensor()
+{
+ if ( NULL != i2c_p )
+ delete i2c_p;
+}
+
+void I2CTempSensor::init( void )
+{
+ char command[ 2 ];
+
+ command[ 0 ] = LM75B_Conf;
+ command[ 1 ] = 0x00;
+
+ i2c.write( adr, command, 2 );
+}
+
+short I2CTempSensor::read( void )
+{
+ char command[ 2 ];
+
+ command[ 0 ] = LM75B_Temp;
+
+ i2c.write( adr, command, 1 ); // Send command string
+ i2c.read( adr, command, 2 ); // read two bytes data
+
+ return ( (command[ 0 ] << 8)| command[1] );
+}