why does the nucleo-G431KB have a jumper on cn4

[Tesla DeLorean]

Grounds PA12/USB_DP, defeats the internal pull-up, probably relates to how it starts

CN4.4 GND

CN4.5 D2 PA12 USB_DP

[Franksterb92]

ok i plugged it in i just got it in the mail btw and the usr led blinks faster if u unplug it and blinks slower if u have it plugged in so im guessing its just a extra jumper the give u possibly to mess with the bootloader or anything else

[Tesla DeLorean]

Or the demo code reads Arduino D2 (PA12) to determine LED rate

https://github.com/STMicroelectronics/STM32CubeG4/tree/master/Projects/NUCLEO-G431KB/Demonstrations/Led_Jumper

[waclawek.jan · Accepted solution]

> Or the demo code reads Arduino D2 (PA12) to determine LED rate

 

JW