rti.c

飞思卡尔单片机MC9S08AW60 RTI部分操作源码。验证通过。

#include <MC9S08AW60.h>

void RTI_Init(void)
{
  /* SRTISC: RTIF=0,RTIACK=0,RTICLKS=0,RTIE=1,??=0,RTIS2=1,RTIS1=1,RTIS0=1 */
  SRTISC = 0x17;  /* Run RTI (select clock source, set frequncy and enable interrupt )*/ 
}


interrupt 25 void isrRTI(void)
{
  SRTISC_RTIACK = 1;   /* Reset real-time interrupt request flag */
  PTFD_PTFD0 = ~PTFD_PTFD0;
}