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请问cc2540作为从机时在休眠状态下主机如何唤醒从机?

Other Parts Discussed in Thread: CC2540

我们手机蓝牙通信时,连接方需要打开设备发送扫描连接指令,而接收方也需要打开蓝牙设备发送广播指令等待搜索连接。如系统有多个主机一个从机且蓝牙通信数据量很少,从机平常情况处于休眠状态下,此时主机发送扫描连接命令,这时如何唤醒从机发送广播指令? 若是从机使用RTC中断唤醒从机,每隔段时间唤醒发送广播指令,这样是否能使主机每时每刻状态都能正常连接到从机?