TMS320F28069: sysbios新建tskexample之后，调试运行瞬间停在INT13_ISR()

下图是因为啥原因出错了呢

INT13_ISR() at F2806x_DefaultIsr.c:74 0x3DB014

ti_sysbios_family_c28_TaskSupport_glue() at TaskSupport_asm.s28:217 0x3DB1BC (_ti_sysbios_family_c28_TaskSupport_glue does not contain frame information)

仅运行一个tsk:

void task0_led(void *argc,void *argv)
{
  Gpio_select();

  while(1)
  {
    Semaphore_pend(sem_clock0,BIOS_WAIT_FOREVER);
    GpioDataRegs.GPBTOGGLE.bit.GPIO39=1;
    Task_sleep(1000);
  }
}