TRACE connector pin 9 in nRF52833 and 52840 DK (PCA10100 and PCA10056)

[Shan Song]

Hi, 

I found the TRACE connector on nRF52833 and 52840 DK has its pin 9 connected to ground.

But in the datasheet of JLink/JTRACE, the TRACE connector has following pinout

The pin 9 is NOT Connected.

Knowing that this will not result in any issue functionally, since the pin is not connected in JTRACE anyway. I wonder if there is any special consideration to have pin9 connected to ground in the DK boards.

Thanks.

Shan Song

[haakonsh]

I don't think there was any reason for it being grounded. If it's an issue you can cut the ground trace, if possible.