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.cpp

Revision:
3:7484c0fe6f4d
Parent:
2:e60995ceccbd
--- a/MCP4822.cpp	Fri Feb 15 16:28:57 2013 +0000
+++ b/MCP4822.cpp	Mon Mar 04 17:06:01 2013 +0000
@@ -61,4 +61,8 @@
 
 void MCP4822::shutdownB()   {
     write(true, false, 0, true);
+}
+
+void MCP4822::chipSel(){
+    cs = !cs;
 }
\ No newline at end of file