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CC1101工作时无故进入IDLE模式

Other Parts Discussed in Thread: CC1101

使用STM8L101与CC1101构成一个接收终端。CC1101采用WOR模式接收,收到数据后使用GDO0对MCU产生外部中断。现在的问题是当MCU无外部按键操作时,CC1101工作正常,有按键按下时,会在按下不特定的次数后,CC1101接收不到数据。开始怀疑是中断嵌套引起的,但在GDO0的中断里屏蔽了所有中断,实测进入GDO0中断后,也不会被按键中断打断。又将CC1101调整到RX模式,在此模式下按键也会使得CC1101无法接收数据,在无法接收数据后读取CC1101的状态,CC1101处于IDLE模式。哪会大侠帮我分析下原因?