cc2640r2f 有一个蓝牙任务，然后创建一个adc驱动任务，手机连接上后，蓝牙发送一段时间就不发了

仿真调试发现,程序卡在osal_start_system 函数里面，

osal_run_system();  ICall_wait(ICALL_TIMEOUT_FOREVER);这两句话反复执行，

具体完整代码如下

void osal_start_system( void )
{
#ifdef USE_ICALL
/* Kick off timer service in order to allocate resources upfront.
* The first timeout is required to schedule next OSAL timer event
* as well. */
ICall_Errno errno = ICall_setTimer(1, osal_msec_timer_cback,
(void *) osal_msec_timer_seq,
&osal_timerid_msec_timer);
if (errno != ICALL_ERRNO_SUCCESS)
{
ICall_abort();
}
#endif /* USE_ICALL */

#if !defined ( ZBIT ) && !defined ( UBIT )
for(;;) // Forever Loop
#endif
{
osal_run_system();

#ifdef USE_ICALL
ICall_wait(ICALL_TIMEOUT_FOREVER);
#endif /* USE_ICALL */
}
}

请问什么原因导致的？