ram_h.h

来自「8051带32Mflash的源代码」· C头文件 代码 · 共 33 行

#include <reg52.h>
sfr P4 = 0xe8;
sfr AUXR = 0X8E;

sbit P40=P4^0;
sbit P41=P4^1;
sbit P42=P4^2;

#define RAM_PORT 0XFFFF

#define uint unsigned int
#define uchar unsigned char


/*----------------------------------------------------
			RAM SUB PROGRAMS
------------------------------------------------------*/
void ram_init(void);
void ram_cs(bit flag);

uchar ram_read_byte(uchar xdata *addr);
uint ram_read_word(uchar xdata *addr);
void ram_write_byte(uchar xdata *addr,uchar value);
void ram_write_word(uchar xdata *addr,uint value);


/*------------------------------------------------------------
	            	DELAY program 	
--------------------------------------------------------------*/
extern void delay5us(uint utimes);    //5uS*utimes  IN 12MHZ
extern void delay10ms(uint mtimes); //10MS*mtimes  IN 12MHZ
extern void delay1s(uint time1,uint time2);