错误 Build target 'Target 1'compiling Text1.c...
TEXT1.C(56): warning C206: 'Recstring': missing function-prototype
TEXT1.C(56): error C267: 'Recstring': requires ANSI-style prototype
TEXT1.C(56): error C202: 'IIC_Password': undefined identifier
TEXT1.C(57): error C202: 'IIC_Password': undefined identifier
TEXT1.C(62): error C202: 'KeyNo': undefined identifier
TEXT1.C(64): error C202: 'KeyNo': undefined identifier
TEXT1.C(73): error C202: 'UserPassword': undefined identifier
TEXT1.C(74): error C202: 'UserPassword': undefined identifier
TEXT1.C(82): error C202: 'UserPassword': undefined identifier
Target not created
程序：#include<reg51.h>
#include<string.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
#define delay4us();
uchar Pre_keyNo = 16,keyNo = 16;
uchar code Title_Text[] = "Your password";
uchar DSY_BUFFER[10] =" ";
uchar Userpassword[10] =" ";
void LCD_Init();
void Display_String(uchar * str,ucharLineNo);
void IIC_24C04_Init();
void Beep();
uchar RecString(uchar Slave,uchar Subaddr,uchar *Buffer,uchar N);
uchar SendString(uchar Slave,uchar Subaddr,uchar *Buffer,uchar N);
uchar Keys_Scan();
sbit LED_OPEN =P2^7;
sbit BEEP =P3^7;
void DelayMS(uint x)
{
uchar i;
while (x--) for (i = 0; i< 120;i++);
}
void Beep()
{
uchar i;
for (i = 0;i<100;i++)
{
DelayMS(1);BEEP= ~BEEP;
}
BEEP=0;
}
void main()
{
uchar i = 0;
uchar IIC_password[10];
uchar IS_Valid_User = 0;
P0 = 0xFF;
P1 = 0xFF;
P2 = 0xFF;
TMOD = 0x02;
TH0 = 175;
TL0 = 175;
TR0 = 1;
DelayMS(10);
LCD_Init();
IIC_24C04_Init();
Display_String(Title_Text,0x00);
Recstring(0xa0, 0, IIC_Password, 6);
IIC_Password[6] ='\0';
while (1)
{
P1 = 0xF0;
if(P1 !=0xf0) KeyNo = Keys_Scan();
switch (KeyNo)
{
case 0: case 1: case 2: case 3: case 4:
case 5: case 6: case 7: case 8: case 9:
if (i<= 5)
{
if(i ==0) Display_String(" ",0x40);
UserPassword[i] =KeyNo + '0';
UserPassword[i+1] = '\0';
Display_String(DSY_BUFFER,0x40);
i++;
}
break;
case 10:
if(strcmp(UserPassword,IIC_Password) ==0)
{
LED_OPEN = 0;
Clear_Password();
Display_String("Unlock OK! ",0x40);
IS_Valid_User = 1;
}
else
{
LED_OPEN = 1;
Clear_Password();
Display_String("ERROR! ",0x40);）；
IS_Valid_User = 0;
}
i = 0;
break;
case 11:
LED_OPEN = 1;
Clear_Password();
Display_String(Title_Text,0x00);
Display_String(" ",0x40);
i = 0;
IS_Valid_User = 0;
break;
case 12:
if(!IS_Valid_User )Display_String("No rights !",0x40);
else
{
i = 0;
Display_String("new password : ",0x00);
Display_String(" ",0x40);
}
break;
case 13:
if(!IS_Valid_User ) Display_String("No rights !",0x40);
else
{
SendString(0xa0, 0, UserPassword,6);
RecString(0xa0, 0, IIC_Password, 6);
IIC_password[6] = '\0';
i=0;
Display_String(Title_Text,0x00);
Display_String("Password saved!",0x40);
}
break;
case 14:
i = 0;
Clear_Password();
Display_String(" ",0x40);
}
Beep();
DelayMS(100);
P1= 0xF0;
while (P1 != 0xF0);
while (P1 == 0xF00;
}
}
void Start()
{
SDA = 1；
SCL = 1;
Delay4us();
SDA = 0;
Delay4us();
SCL = 0；
}
void ACK()
{
SDA = 0；
SCL = 1;
Delay4us();
SCL = 0;
SDA =1;
}
void NO_ACK()
{
SDA = 1;
SCL =1;
Delay4us();
SCL = 0;
SDA = 0;
}
uchar RecByte()
{
Uchar i,rd;
rd = 0x00;
SDA = 1;
for(i = 0;i<8;i++)
{
SCL = 1; rd<<=1; rd |=SDA;
Delay4us();SCL = 0; Delay4us();
}
SCL = 0;
Delay4us();
return rd;
}
uchar SendByte(uchar wd)
{
uchar i;
bit ack0;
for(i = 0; i < 8; i++)
{
SDA = (bit) (wd & 0x80);
_nop_();_nop_(); SCL = 1; Delay4us();
SCL = 0 ; wd<<= 1；
}
Delay4us();
SDA = 1;
SCL = 1;
Delay4us();
ack0 = !SDA;
SCL = 0;
Delay4us();
return ack0;
}
uchar SendString(uchar Slave, uchar Subaddr, uchar *Buffer,uchar N)
{
uchar i;
start();
if (!SendByte(slave)) return 0;
if (!SendByte(Subaddr)) return 0;
Start();
if (!SendByte(Slave + 1)) return 0;
for(i= 0; i<N-1; i++)
{
Buffer[i] = RecByte();
ACK();
}
Buffer[N-1] =RecByte();
NO_ACK();
Stop();
return 1;
}
void DelayMS(unit x);
uchar Keys_scan()
{
uchar tmp, KeyNo = 0;
P1 = 0x0F;
DelayMS(1);
Tmp = P1 >>4^0x0F;
switch (Tmp)
{
case 1:KeyNo +=0; break;
case 2:KeyNo +=4; break;
case 4:KeyNo +=8; break;
case 8:KeyNo +=12;
}
return KeyNo;
}
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