/************************************************PIC16F877A 內部EEPROM讀寫實驗*******Author:hnrainDate:2010-12-26Version:V0.1Email:hnrain1004@gmail.comForum:http://bbs.cepark.com_______________________________實驗現象:先給內部EEPROM的0~7字節(jié)寫數據1~8,再讀出第0字節(jié)的內容，并判斷讀出來的數據是不是1，如果是1則點亮RD0口的LED。重點內容：在我們的PIC.h中，給我們提供了兩個函數操作內部的EEPROM.兩個函數為：unsigned char eeprom_read(unsigned char addr);void eeprom_write(unsigned char addr, unsigned char value);*******************************************/#include __CONFIG(HS&WDTDIS&LVPDIS&PWRTEN);//HS振蕩,禁止看門狗,低壓編程關閉,啟動延時定時器unsigned chareeprom_read(unsigned charaddr);voideeprom_write(unsigned charaddr, unsigned charvalue);unsigned charcydata;voidmain(void){unsigned chark;PORTD = 0xff;TRISD = 0x00;for(k = 0; k < 7; k++){eeprom_write(k,k+1);}while(1){do{}while(WR == 1);//等待寫完成cydata = eeprom_read(0);if(cydata == 1){RD0 = 0;}}}