#include <30F4013.h>
#fuses XT, PR, NOWDT, NOPUT, NOBROWNOUT, NOMCLR, NOCKSFSM
#use delay(clock=4000000)
#use rs232(baud=12500, bits=8, parity=N, UART1)
#bit txif = 0x0084.9//IFS0.U1RXIF

char rcvchar=0x00;   // último carácter recibido
#int_rda
void serial_isr()
{
  rcvchar=0x00;
  if(kbhit()){rcvchar=getc();}
}

void main()
{
  enable_interrupts(int_rda);
	while(1)
	{
	 if (rcvchar)
		{
		printf("!");
		rcvchar=0x00;
		}
	}
}