nRF52840 DK - Unable to flash with Arduino shield attached

RE: nRF52840 DK - Unable to flash with Arduino shield attached

manumonti — Tue, 26 Feb 2019 15:10:39 GMT

Oh, It's true! the pads you draw touch the pins.

Increasing the spacing fixed the problem, thank you!

Manuel Montenegro.

RE: nRF52840 DK - Unable to flash with Arduino shield attached

Andreas — Tue, 26 Feb 2019 12:54:11 GMT

Hi,

Are you sure that these pads do not touch the VTG pin on P20?

Supplying that with voltage makes the Segger debugger think there is an external board connected to P20, and it directs all J-link traffic onto that instead of the nRF on the DK. Could you try to increase the spacing between the shield and the DK a little, or just put a sticker or something on top of it?

Best regards,

Andreas

RE: nRF52840 DK - Unable to flash with Arduino shield attached

manumonti — Tue, 26 Feb 2019 08:56:25 GMT

Hi, Andreas.

Nothing is connected to P20 header.

Any idea?

RE: nRF52840 DK - Unable to flash with Arduino shield attached

Andreas — Wed, 06 Feb 2019 12:10:21 GMT

Hi,

Does the shield connect anything to the P20 header on the nRF52840 DK?

Best regards

Andreas