Can add a power module for P3541 B01?

[Benedict_Tony]

RTC setup wih cell coin in Jetson Nano Developer Kit 945-13450-0000-100

The diode or shorting connection is necessary… It was assumed to be there, so the problem is the coin cell is not connected to RTC as no diode or shorting?

i didn’t add the diode ,i just add the DS3231 mode and it didn’t work.