谢谢yaopg版主！我按你提供的方法测了一下中断，问题依旧存在，现把代码贴出来，请您帮忙分析一下：

/*注：有关引脚的设置和中断的模式、触发方式等已在其他函数中完成*/

STATUS irqtest(void)
{
  (*(volatile unsigned *) rEINTPEND) = (*(volatile unsigned *) rEINTPEND);/* Clear pend */
  (*(volatile unsigned *) rEINTMASK)  &=  ~(1<<11);  /* Enable EINT11 */
  
 /* Connect interrupt vector to isr */
  if(intConnect(INUM_TO_IVEC(5), isr11, 0) == ERROR)
 {
  return ERROR;
 }

  intEnable(5); /* Enable EINT8_23 */

  while(1) ;

  return(OK);
}

void isr11(void)
{
    logMsg("got an interrupt\n",0,0,0,0,0,0);
 
 (*(volatile unsigned *) rEINTPEND) |= (1<<11); /* Clear EINT11*/
 (*(volatile unsigned *) rSRCPND) |= (1<<5);    /* Clear EINT8_23*/
 (*(volatile unsigned *) rINTPND) = (*(volatile unsigned *) rINTPND);
}