putchar.c

无线射频收发芯片cc1020的校准程序代码

#include <stdio.h>
#include "io16f876.h"

// Simple implementation of the ANSI putchar() routine, writes to UART
int putchar(int ch)
{

  char dummy;

  while(TXIF==0) {
    if (OERR) {
      TXEN=0;
      TXEN=1;
      CREN=0;
      CREN=1;
    }
    if (FERR) {
      dummy=RCREG;
      TXEN=0;
      TXEN=1;
    }
    
  } /* Wait for buffer to be empty */

  TXREG=ch;

  return ch;
}