hi,can anyone tell me why the last line code
( if(KeyCode==8) {BackLight = !BackLight;F0=0;} )
is wrong? if i remove the last line,everything seems
ok. if i leave it in this routine, i don\'t know where
the program will goes to after the interrupt?




sbit BackLight=P3^4;
char KeyCode=0 ;

void KeyPress(void) interrupt 2
{
KeyCode = P0;
KeyCode = KeyCode&0x0f;
F0=1;
if(KeyCode==8) {BackLight = !BackLight;F0=0;}

}