hd7279.h

7279是串行的LED键盘控制芯片

 
#ifndef _HD7279_H
#define _HD7279_H

#define HD7279_RESET 0xa4 //复位
#define HD7279_TEST 0xbf //测试 
#define HD7279_RLC 0xa3 //循环左移
#define HD7279_RRC 0xa2 //循环右移
#define HD7279_RL 0xa1 //左移
#define HD7279_RR 0xa0 //右移 
#define HD7279_DECODE0 0x80 //译码方式0
#define HD7279_DECODE1 0xc8 //译码方式1
#define HD7279_UNDECODE 0x90 //译码方式2: 不译码 
#define HD7279_HIDE 0x98 //消隐
#define HD7279_FLASH 0x88 //闪烁 
#define HD7279_SEGON 0xe0 //段亮
#define HD7279_SEGOFF 0xc0 //段灭 
#define HD7279_READ 0x15 //读 
//-------------------------------------------------------------------------------
sbit HD7279_CS        =     P3_DATA^2; // HD7279_CS--P3.2
sbit HD7279_CLK       =     P3_DATA^3; // HD7279_CLK-- P3.3
sbit HD7279_DATA      =     P3_DATA^4; // HD7279_DATA-- P3.4
sbit HD7279_KEY       =     P3_DATA^7; // HD7279_KEY-- P3.5

#endif