PIC16F877A單片機eeprom 24C04A程序

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ID:962554 發表于 2021-8-27 00:23 | 只看該作者 |只看大圖回帖獎勵

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仿真原理圖如下（proteus仿真工程文件可到本帖附件中下載）

單片機源程序如下:

/*
* File: newmain.c
* Author: SDS
*
* Created on 29 December, 2019, 11:59 AM
*/
// PIC16F877A Configuration Bit Settings
// 'C' source line config statements
// CONFIG
#pragma config FOSC = HS // Oscillator Selection bits (HS oscillator)
#pragma config WDTE = OFF // Watchdog Timer Enable bit (WDT disabled)
#pragma config PWRTE = OFF // Power-up Timer Enable bit (PWRT disabled)
#pragma config BOREN = ON // Brown-out Reset Enable bit (BOR enabled)
#pragma config LVP = OFF // Low-Voltage (Single-Supply) In-Circuit Serial Programming Enable bit (RB3 is digital I/O, HV on MCLR must be used for programming)
#pragma config CPD = OFF // Data EEPROM Memory Code Protection bit (Data EEPROM code protection off)
#pragma config WRT = OFF // Flash Program Memory Write Enable bits (Write protection off; all program memory may be written to by EECON control)
#pragma config CP = OFF // Flash Program Memory Code Protection bit (Code protection off)
// #pragma config statements should precede project file includes.
// Use project enums instead of #define for ON and OFF.
#define _XTAL_FREQ 20000000
#include <xc.h>
#include <stdio.h>
//#include <stdlib.h>
#include <stdint.h>
#include "LCD.h"
#include "I2C.h"
#include "EEPROM.h"
#include "ADC.h"
char lcd[20];
void main()
{
TRISD=0;
LCD_init();
I2C_Init(400);
Init_ADC();
LCD_command(clear);
Lcd_string(1,1,"<-- WELCOME -->");
__delay_ms(200); LCD_command(clear);
unsigned int ADC_value = 0;
unsigned int ADC_value1 = 0;
unsigned int i=0;
unsigned char rx,rx1,rx2,rx4=0;
uint16_t rx3;
// Write_Byte_To_EEPROM(0x0000,'S');
// Write_Byte_To_EEPROM(0x0001,'D');
// Write_Byte_To_EEPROM(0x0002,'S');
// Write_Byte_To_EEPROM(0x0003,i);
while(1)
{
ADC_value = ADCValue(6);
ADC_value1 = ADCValue(5);
rx4=Read_Byte_From_EEPROM(0004);
rx2=Read_Byte_From_EEPROM(0005);
rx3=((rx4<<8)|rx2);
sprintf(lcd,"MEM:%3u",rx3);Lcd_string(1,1,lcd);
sprintf(lcd,"ADC:%3u",ADC_value);Lcd_string(2,1,lcd);
sprintf(lcd,"ADC:%3u",ADC_value1);Lcd_string(4,1,lcd);
// __delay_ms(50);
if(ADC_value>1000)
{
Write_Byte_To_EEPROM(0004,ADC_value1>>8);
Write_Byte_To_EEPROM(0005,ADC_value1);
}
if(i>100){i=0;}i++;
sprintf(lcd,"I:%3u",i);Lcd_string(3,1,lcd);
///////////////////////// END /////////////////////////////
}
}