Reed Kimble / DacLtc2606

Simple wrapper object for LTC2606 1CH 16Bit DAC. Instantiate DacLtc2606 object instance passing reference to mbed.I2C object instance. Call write() method on DacLtc2606 instance passing 16Bit integer (0 [Off] to 32767/-32768 [Half-On] to -1 [Full-On]) to set DAC output.

Diff: DacLtc2606.h

Revision:
2:d101ca4ae85e
Parent:
1:5924632f3344
--- a/DacLtc2606.h	Thu Sep 13 23:10:35 2012 +0000
+++ b/DacLtc2606.h	Fri Sep 14 17:23:05 2012 +0000
@@ -32,11 +32,11 @@
      */
     DacLtc2606(I2C i2c);
     
-    /** Set the DAC output to the specifed integer value
+    /** Set the DAC output to the specifed unsigned short integer value
      *
-     * @param value The 16 bit integer to write (0 to 32767 to -32768 to -1)
+     * @param value The 16 bit integer to write (0 to 65535)
      */
-    bool write(int value);
+    bool write(unsigned short value);
     
     /** Set the DAC output to the specified percentage of max
      *
@@ -44,10 +44,15 @@
      */
     bool write(double percent);
     
+    /** Retreives the unsigned short integer value currently assigned to the DAC output
+     */
+    unsigned short getCurrentValue();
+    
 private:
     static const char _slave = 0xE4;
     static const char _command = 0x30;
     I2C _i2c;
+    unsigned short _currentValue;
 };
 
 #endif
\ No newline at end of file