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CC2640R2F: Broadcast power consumption under the routine of simple_broadcast

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

The broadcast time of the chip is theoretically on the order of us~ms, but by observing the power consumption, the broadcast time seems to be around 1 s.

Doubt with The _pend() mechanism is relevant because if you comment out_ The pend() function,Because if you comment out _pend() function,

The broadcast is still running normally, and the high power consumption peak has been greatly shortened, but this also leads to a sharp increase in static power consumption

(This may be due to the failure of the relevant power scheduling due to the absence of a pend)

So my question is, why is the broadcast duration as long as 1 s during the pend process? Is it possible to solve it?