SDA=1; //STOP
delay();
}
2.这是一个读写24C系列EEPROM的程序,已经经过本人亲自测试,通过!!!!!
//*************************************
//** M2401,M2402,M2404,M2408,M2416,M2432,M2464,M24128,M24256
//** 21c01,24c02:1010A2A1A0R/W; 24C04:1010A2A1P0R/W; 24C08:1010A2P1P0R/W
//** 24C16:1010P2P1P0R/W; //** 以上6种芯片的读写格式为:start-device addr-ack-first word addr-ack-second word addr-ack-data-ack-stop
//** 进行读写的字节数,EEPROM首址,EEPROM控制字节,
//** 以及EEPROM类型。此程序结构性良好,具有极好的容错性,程序机器码也不多:
//** 以上5种芯片的读写格式为:start-device addr-ack-word addr-ack-data-ack-stop
//** 24c32-24c512:1010A2A1A0R/W; 24C1024:1010A2A1P0R/W; 24c1024:1010A2A1P0R/W //** 通用的24C01-24C1024共11种EEPROM的字节读写操作程序,
//**************************24C01读写的c51源程序***********************************
#i nclude
#i nclude
#i nclude
#i nclude
sbit SDA =P1^1;
sbit SCL =P1^4;
sbit WP =P1^7;
sbit light =P1^0;
sbit power =P1^6;
#define uchar unsigned char
#define uint unsigned int
void iic_delay10ms();
void iic_delay(void);
void iic_start(void);
void iic_stop(void);
void iic_ack(void);
void read_byte(void);
void send_byte(void);
void initial(void);
void ok(void);
void error(void);
void read_eeprom(void);
void write_eeprom(void);
void init(void);
uchar ack_flag,send_data,receive_data[32];
uchar rw,type,device_addr,addr[3],num;
void main(void)
{
initial();
power =0;
light =0;
while(1)
{
ES =1;
rw =0x55;
WP =0;
while(rw ==0x55);