Diff: mcp3208.h

Revision:

1:7dde73ad2b78

diff -r b58572ce83b6 -r 7dde73ad2b78 mcp3208.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mcp3208.h	Sun Dec 15 02:42:47 2013 +0000
@@ -0,0 +1,117 @@
+#include "mbed.h"
+#include "bit.h"
+#ifndef MCP3208_H
+#define MCP3208_H
+
+#define MCP3208_STARTBIT        BIT(2)
+#define MCP3208_SGL_DIFF        BIT(1)
+#define MCP3208_ADCSEL2         BIT(0)
+#define MCP3208_ADCSEL1         BIT(7)
+#define MCP3208_ADCSEL0         BIT(6)
+
+#define USELECTADC0      (MCP3208_STARTBIT|MCP3208_SGL_DIFF)
+#define LSELECTADC0      (0)
+
+#define USELECTADC1      (MCP3208_STARTBIT|MCP3208_SGL_DIFF)
+#define LSELECTADC1      (MCP3208_ADCSEL0)
+
+#define USELECTADC2      (MCP3208_STARTBIT|MCP3208_SGL_DIFF)
+#define LSELECTADC2      (MCP3208_ADCSEL1)
+
+#define USELECTADC3      (MCP3208_STARTBIT|MCP3208_SGL_DIFF)
+#define LSELECTADC3      (MCP3208_ADCSEL1|MCP3208_ADCSEL0)
+
+#define USELECTADC4      (MCP3208_STARTBIT|MCP3208_SGL_DIFF|MCP3208_ADCSEL2)
+#define LSELECTADC4      (0)
+
+#define USELECTADC5      (MCP3208_STARTBIT|MCP3208_SGL_DIFF|MCP3208_ADCSEL2)
+#define LSELECTADC5      (MCP3208_ADCSEL0)
+
+#define USELECTADC6      (MCP3208_STARTBIT|MCP3208_SGL_DIFF|MCP3208_ADCSEL2)
+#define LSELECTADC6      (MCP3208_ADCSEL1)
+
+#define USELECTADC7      (MCP3208_STARTBIT|MCP3208_SGL_DIFF|MCP3208_ADCSEL2)
+#define LSELECTADC7      (MCP3208_ADCSEL1|MCP3208_ADCSEL0)
+
+
+// BITS 0-11 set the output voltage!!!
+
+class mcp3208 {
+public:
+
+/*
+* Constructor
+*/
+mcp3208(SPI &spi, void(*sel)(void), void(*usel)(void));
+
+/*
+* Destructor
+*/
+~mcp3208();
+
+/*
+* Write to DAC 0
+*/
+int read0();
+
+
+/*
+* Write to DAC 1
+*/
+int read1();
+
+/*
+* Write to DAC 2
+*/
+int read2();
+
+/*
+* Write to DAC 3
+*/
+int read3();
+
+/*
+* Write to DAC 4
+*/
+int read4();
+
+/*
+* Write to DAC 5
+*/
+int read5();
+
+/*
+* Write to DAC 6
+*/
+int read6();
+
+/*
+* Write to DAC 7
+*/
+int read7();
+
+/*
+* Select the ADC for data retrievel
+*/
+void select();
+
+/*
+* Deselect the ADC
+*/
+void deselect();
+
+private:
+
+// These function pointer allows you to
+// use a routine to control the chip select line
+// important for me since all of my chip select lines are
+// controlled by a array of shift registers!
+void(*selectfxn)(void);
+void(*unselectfxn)(void);
+SPI &_spi;
+
+// Configure the SPI periphreal to drive our ADCs
+void configspi();
+}; // end class MCP3208
+
+#endif //MCP3208_H
\ No newline at end of file