epphal.h

固件源代码 C52驱动编程源码学习中

#include <At89x52.h>
	
#define EPP_PORT  P1
#define DATA_BUS  P0
#define D12_COMMAND 0x0ff03
#define D12_DATA 0x0ff02
sbit MCU_SWM0     = P1^0;
sbit MCU_SWM1     = P1^1;
sbit MCU_LED0	  = P1^2;
sbit MCU_LED1	  = P1^3;

sbit MCU_D12CS	  = P1^6;
sbit MCU_D12RST   = P1^7;

sbit D12SUSPD	  = P3^3;

#define DISABLE		EA=0
#define ENABLE		EA=1

void outportcmd(unsigned char value);
void outportdata(unsigned char value);
unsigned char inportb(void);