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求助,CC1200实际发射载波频率和设计频率不符合

Other Parts Discussed in Thread: CC1200

根据资料SWRA428a第24页example5配置CC1200,

(1)CC120X_FREQ为0X56CCCC,外部晶振40MHz,L O divider 为4,FREQOFF为0.设计载波频率为868MHZ,通过频谱仪测试实际发射频率为763MHz。

(2)CC120X_FREQ为0X56CCCC,外部晶振40MHz,L O divider 为8,FREQOFF为0.设计载波频率为434MHZ,通过频谱仪测试实际发射频率为381MHz。

查看FSCAL_CTRL寄存器第0位为0,显示FS is out of Lock