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CC2640R2F: simple_broadcast例程下的广播功耗问题

Part Number: CC2640R2F
Other Parts Discussed in Thread: CC2640, MSP430FR2433, ENERGYTRACE,

芯片的广播耗时理论上在us~ms量级,但观察功耗,广播耗时似乎在1s左右。怀疑与_pend()机制有关,因为如果注释掉_pend()函数,广播依然正常进行,高功耗峰大大缩短了,不过这也导致静态功耗急剧增加(可能是由于没有pend导致相关电源调度失效)。因此我的问题是在pend过程中为什么广播时长有1s之长呢,是否可能解决?