iocfg.c

来自「51单片机及其C语言程序开发实例光盘资料.rar」· C语言 代码 · 共 27 行

#include<reg51.h>

/*引脚定义*/

//DAC：MAX528引脚
sbit  MDAC_CLK  = P1^4;
sbit  MDAC_DIN  = P1^5;
sbit  MDAC_CS   = P1^6;
sbit  MDAC_SHDN = P1^7;

//Key：zlg7289引脚
sbit ZLG7289CS  = P1^0;
sbit ZLG7289CLK = P1^1;
sbit ZLG7289DIO = P1^2;
sbit ZLG7289INT = P3^2;

//IIC：PCA8574引脚
sbit IIC_INT  = P3^3;
sbit IIC_SCL  = P3^4;
sbit IIC_SDA  = P3^5;

//RAM：62256引脚 
sbit RAM_CS = P1^3;
sbit RAM_WE = P3^6;
sbit RAM_OE = P3^7;
#define RAM_ADDR_L  P0
#define RAM_ADDR_H  P2