问题遇到的现象和发生背景
#include "LCD1602.h"
#include <REGX52.H>
#include "I2C.h"
#define AT24C02_Address 0xa0
void AT24C02_WriteByte(unsigned char WordAddress ,Date)
{
LCD_Init();
unsigned char Ack;
I2C_Start();
I2C_SendByte(AT24C02_Address);
Ack=ReceiveAck();
if(Ack==0)LCD_ShowString(1,1,"c");
}
unsigned char AT24C02_ReadByte(unsigned char WordAddress)
{
unsigned char Data;
return Data;
}
用代码块功能插入代码,请勿粘贴截图
不知道怎么搞的。明明定义了,还是报错没定义
运行结果及报错内容
AT24C02.c(9): error C141: syntax error near 'unsigned'
AT24C02.c(9): error C202: 'Ack': undefined identifier
AT24C02.c(12): error C202: 'Ack': undefined identifier
AT24C02.c(13): error C202: 'Ack': undefined identifier
AT24C02.c - 4 Error(s), 0 Warning(s).