Johnny Yam / MCP4XXX

simple MCP4XXX digital potentiometer library

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MCP4XXX.h

00001 #ifndef MCP4XXX_H
00002 #define MCP4XXX_H
00003 
00004 #include "mbed.h"
00005 
00006 #define P0_ADDR 0x00
00007 #define P1_ADDR 0x10
00008 
00009 class MCP4XXX {
00010 
00011     public:    
00012         MCP4XXX(PinName miso, PinName mosi, PinName clk, PinName cs);
00013         ~MCP4XXX();
00014         void setLevel(unsigned char lvl, bool isP0 = true); // MCP42XX is a dual pot IC
00015         unsigned char getLevel();
00016     private:
00017         SPI *_spi;
00018         DigitalOut *_cs;
00019         unsigned char _lvl;
00020 };
00021 
00022 #endif
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