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Hello,
when trying to compile an C program with uVision2 v2.38a . compilation errors, following is the complete program,pls help me :
#include <regc51.H>
#include <intrins.H>
void wrt_lcd(unsigned char*);
void lcd_init(void);
void cmd(unsigned int);
bit station1,station2;
void delay(unsigned int);
sbit v1=P2^2;
sbit v2=P2^3;
void main()
{ lcd_init();
P2=0xFF;
//P2_0=0;
cmd(0x01);
cmd(0x80);
wrt_lcd("RF Base station");
cmd(0xC0);
wrt_lcd(" Name Display ");
delay(65000);
delay(65000);
delay(65000);
//P2_0=1;
while(!P2_0&&!P2_1);
while(1)
{ if((P2_0==0)&&!station1)
{ P2_3=0;
cmd(0x01);
cmd(0x80);
wrt_lcd("Nagerkoil");
delay(65000);
delay(65000);
delay(65000);
delay(65000);
delay(65000);
delay(65000);
cmd(0x01);
cmd(0x80);
wrt_lcd("RF Base station");
cmd(0xC0);
wrt_lcd(" Name Display ");
station1=1;
station2=0;
P2_3=1;
} if((P2_1==0)&&!station2)
{ P2_2=0;
cmd(0x01);
cmd(0x80);
wrt_lcd("Chennai");
delay(65000);
delay(65000);
delay(65000);delay(65000);delay(65000);
cmd(0x01);
cmd(0x80);
wrt_lcd("RF Base station");
cmd(0xC0);
wrt_lcd(" Name Display ");
P2_2=1;
station1=0;
station2=1;
} //
} }
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following error are how to avoid
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Build target 'lcdw.c'
compiling lcdw.c...
LCDW.C(24): error C202: 'P2_0': undefined identifier
LCDW.C(27): error C202: 'P2_0': undefined identifier
LCDW.C(29): error C202: 'P2_3': undefined identifier
LCDW.C(46): error C202: 'P2_3': undefined identifier
LCDW.C(48): error C202: 'P2_1': undefined identifier
LCDW.C(50): error C202: 'P2_2': undefined identifier
LCDW.C(62): error C202: 'P2_2': undefined identifier
Target not created