nRF52840 preview development kit booting error

RE: nRF52840 preview development kit booting error

Edvin — Mon, 05 Mar 2018 09:01:20 GMT

What positions are the switches on the board in? is SW9: VDD, SW8: ON, SW6: DEFAULT, SW10: OFF, and SW7 Def. ?

What version of JLink do you have? If it is an old one, could you try to update to one of the latest releases? And also, is it possible to test the PDK on another computer?

RE: nRF52840 preview development kit booting error

Elissa — Sun, 04 Mar 2018 06:00:52 GMT

It does not work, unfortunately. It does not appear as BOOTLOADER on my PC....

RE: nRF52840 preview development kit booting error

Edvin — Tue, 13 Feb 2018 15:47:55 GMT

Hello,

If you are still able to detect the nRF with nRF Connect, it suggests that it is the programming chip that is corrupted. You say that you have tried the steps in the links. What happens when you hold the button "IF BOOT/RESET" while you power off and on the PDK? Does it appear as BOOTLOADER on your PC?

If it does, can you try to drag'n'drop the attached file into the BOOTLOADER device (e.g. in windows explorer).

After this, the "LED5" next to the programming chip should start to blink. When it does, power the board on and off, without holding any buttons. Does it appear on your PC then?

If this does not work, where in the process does your board differ from the description above?

You do use the USB port on the short side of the DK, and not the long side?

devzone.nordicsemi.com/.../J_2D00_Link-OB_2D00_SAM3U128_2D00_V2_2D00_NordicSemi-170724.bin

Best regards,

Edvin