main.h

应用案例

//////////////////////////////////////////////////////////////////////////////////////

extern void rs232_send(unsigned char *address, unsigned char length);
extern void rs232_init(void);

extern void init_lcd (void);
extern void line_disp (unsigned char lines , unsigned char *chn);
extern void clrram(void);

extern void timer_init(void);
extern void time_disp1 (unsigned char x);
extern void time_disp2(void);

void delay_50us(unsigned char time)
{ 
    while(time--)
     {
      unsigned char i = 7;
      while(--i);
     }
}
void delay_1s(unsigned int time)
{
	while(time--)
	{
	  unsigned int i=200;
	  while(--i);
	}
}