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CC2540: CC2540: Reset the Chip via a Switch/Button?

Part Number: CC2540

Hello,


I am wondering what are good ways to reset CC2540 chip when the program is hanging? My current system has the CC2540 connected to a coin battery, and sometimes I have to reset the power in order to reset my program when my system is stuck. The coin battery is locked and secured in a box, so it's not convenient to remove the battery.


I am thinking to connect the Pin#20 RESET_N to GND via an external Switch so that I can short it in case I need to.


Any thought or recommendation?