Johnny Yam / MCP4XXX

simple MCP4XXX digital potentiometer library

datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/22060b.pdf

MCP4XXX.h@2:314126c6d325, 2013-11-27 (annotated)

Committer:
jyam
Date:
Wed Nov 27 18:26:07 2013 +0000
Revision:
2:314126c6d325
Parent:
1:d0bc73e899a3 
default isP0 to true

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jyam 0:dc2196d5163f 1 #ifndef MCP4XXX_H
jyam 0:dc2196d5163f 2 #define MCP4XXX_H
jyam 0:dc2196d5163f 3
jyam 0:dc2196d5163f 4 #include "mbed.h"
jyam 0:dc2196d5163f 5
jyam 1:d0bc73e899a3 6 #define P0_ADDR 0x00
jyam 1:d0bc73e899a3 7 #define P1_ADDR 0x10
jyam 0:dc2196d5163f 8
jyam 0:dc2196d5163f 9 class MCP4XXX {
jyam 0:dc2196d5163f 10
jyam 0:dc2196d5163f 11 public:
jyam 0:dc2196d5163f 12 MCP4XXX(PinName miso, PinName mosi, PinName clk, PinName cs);
jyam 0:dc2196d5163f 13 ~MCP4XXX();
jyam 2:314126c6d325 14 void setLevel(unsigned char lvl, bool isP0 = true); // MCP42XX is a dual pot IC
jyam 0:dc2196d5163f 15 unsigned char getLevel();
jyam 0:dc2196d5163f 16 private:
jyam 0:dc2196d5163f 17 SPI *_spi;
jyam 0:dc2196d5163f 18 DigitalOut *_cs;
jyam 0:dc2196d5163f 19 unsigned char _lvl;
jyam 0:dc2196d5163f 20 };
jyam 0:dc2196d5163f 21
jyam 0:dc2196d5163f 22 #endif