MCP3425.h

00001 //**********************
00002 // MCP3425.h for mbed
00003 //
00004 // (C)Copyright 2014 All rights reserved by Y.Onodera
00005 // http://einstlab.web.fc2.com
00006 //**********************
00007 
00008 #ifndef MCP3425_H_
00009 #define MCP3425_H_
00010 
00011 #define MCP3425_ADDR                0xD0
00012 
00013 #include "mbed.h"
00014 #include "typedef.h"
00015 
00016 
00017 typedef union
00018 {
00019     unsigned char UC;
00020     struct
00021     {
00022         unsigned char G:2;      // 00=1, 01=2, 10=4, 11=8 Gain
00023         unsigned char S:2;      // 00=12bits, 01=14bits, 10=16bits
00024         unsigned char OC:1;     // 0=One-shot, 1=Continuous
00025         unsigned char C:2;      // NA
00026         unsigned char RDY:1;    // wrinting 1=Initiate, reading 0=Ready
00027     } bit;
00028 } CONFIG;
00029 
00030 
00031 
00032 class MCP3425{
00033 public:
00034     MCP3425 (PinName sda, PinName scl);
00035     MCP3425 (I2C& p_i2c);
00036     void init();
00037     short get();
00038 
00039 protected:
00040     
00041     I2C _i2c;
00042 
00043     CONFIG config;
00044     WORD_VAL ad;
00045     char buf[3];
00046 
00047 };
00048 
00049 #endif /* MCP3425_H_ */
00050 
00051 
00052