Peripheral例程，手动关闭广播后串口接收到Waiting for advertising打印消息后程序卡死的原因是什么？

手动关闭广播后，串口接收到Waiting for advertising打印消息后程序卡死，问题一般出在什么地方？
AdvertisingFlat=0;
initial_advertising_enable = FALSE;
GAPRole_SetParameter(GAPROLE_ADVERT_ENABLED, sizeof(uint8_t), &initial_advertising_enable);