Nick Ryder / MCP4822lib

MCP4822 dual 12-bit Digital to Analog Converter (DAC) chip.

Dependents:   ADC2DAC

The MCP4822 is a dual 12-bit Digital to Analog Converter that is controlled via an SPI interface. It is available in PDIP, SOIC or MSOP packages. The documentation for the chip is available at Microchip's MC4822 page.

The range also includes 8 or 10-bit DACs, which this library could easily be converted to.

Diff: MCP4822.h

Revision:
2:e60995ceccbd
Parent:
1:68b3a24fd2a4
Child:
3:7484c0fe6f4d
--- a/MCP4822.h	Wed Feb 13 16:14:58 2013 +0000
+++ b/MCP4822.h	Fri Feb 15 16:28:57 2013 +0000
@@ -5,7 +5,7 @@
 
 /** MCP4822 dual 12-bit DAC
 * @author NickRyder, atyeomans
-* @version 1.0
+* @version 1.1
 * @section LICENSE
 * The MIT License (MIT)
 * Copyright (c) 2013 Nick Ryder, Andrew Yeomans
@@ -47,6 +47,10 @@
         void latch();
         //! shut down output from the DAC chip
         void shutdown();
+        //! shut down output form channel A
+        void shutdownA();
+        //! shut down output form channel B
+        void shutdownB();
     private:
         DigitalOut cs, latchpin;
         SPI spi;