main.c

来自「this is source file mcs51 interface with」· C语言 代码 · 共 43 行

//---------------------------------------
// Example read and write DS1307
// KEIL C51 v7.5
// www.GetMicro.com
//---------------------------------------
#include<reg8252.h>
#include<stdio.h>
#include<24LC256.h>
#include<serial.h>
#include<delay.h>

//---------------------------------------
// Main program
//---------------------------------------
void main(void)
{

unsigned char EData;

	InitSerial();  		// Initialize serial port

	putchar(0x0C);		// clear hyper terminal
	WriteBYTE(0x0000,0x55);DelayMs(5);
	WriteBYTE(0x0001,0x22);DelayMs(5);
	WriteBYTE(0x0002,0x77);DelayMs(5);
	WriteBYTE(0x0003,0x88);DelayMs(5);
						// Delay for write cycle time 
						// see data sheet for each manufacture
						// In this example use Microchip 24LC256
	EData = ReadBYTE(0x000);	// read back
	printf("Addr 0x0000 : %02bX\r\n",EData);	// display data    
	EData = ReadBYTE(0x001);	// read back
	printf("Addr 0x0001 : %02bX\r\n",EData);	// display data    
	EData = ReadBYTE(0x002);	// read back
	printf("Addr 0x0002 : %02bX\r\n",EData);	// display data    
	EData = ReadBYTE(0x003);	// read back
	printf("Addr 0x0003 : %02bX\r\n",EData);	// display data    

	while(1);
}