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CC430F5137无线模块波特率38.4正常,改为250kbps通讯误码率高的问题

Other Parts Discussed in Thread: CC430F5137, CC1200, CC1101

使用两片CC430F5137进行点对点通讯,38.4kbps通讯正常,所有接收数据CRC都是OK的,

按照SmartRF软件修改波特率为250kbps后,通讯能够正常建立,接收到的数据误码率极高,没有正确的,发送的05 AA CC 80 08 接收到的是E0 A8 67 C0/40 34,接收到的数据基本不变,请教是什么原因?

250kbps时LQI值0x80,RSSI 0X09左右,FRE QEST 0x00-0x07/0xfc-0xFF;

两种方式都是用2GFSK/白化方式调制,4B前导,4B同步字,无CRC;同步字设的是0,改为其他无法通讯

有什么解决办法,是晶振还是RF接收电路问题?