cc2541 断开连接后无法被搜索到
时间:10-02
整理:3721RD
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cc2541 作为蓝牙模块使用,只起到发送和接收数据的作用,固件中并没有时间过长的代码处理
断开原因为连接时间超时
请问会不会是瞬时电压造成蓝牙连接异常
最好抓包看一下,断开后是否还发送广播数据
你好 viki shi
我刚才用sniffer抓了断开连接之后的广播包 如下所示
广播地址末尾为6C的是断开连接的设备
FCS全是error啊,这种情况有可能是sniffer读错了,但鉴于该设备无法被搜索到,有问题的可能性比较大。
参考以下回复:
Keep in mind that when you see an "FCS error" on the packet sniffer, it could be that the BLE communication between the two devices is actually good, and the sniffer just misread bits when sniffing.
In general these can occur if you have a noisy environment or if there is something physically degrading the signal on the board. You can use software such as SmartRF Studio to verify the RF performance of your board.
刚上电广播的时候 FCS都是ok啊 还有什么原因会造成吗