Reprogramming the Interface MCU on nRF52 Dev Kit

RE: Reprogramming the Interface MCU on nRF52 Dev Kit

Amanda Hsieh — Wed, 14 Feb 2024 15:54:32 GMT

Hi,

This case was created two years ago. Not sure what is your DK version, please create a new support case for your issue.

-Amanda H.

RE: Reprogramming the Interface MCU on nRF52 Dev Kit

Mike O. — Wed, 14 Feb 2024 15:03:15 GMT

I had to get a new board. If I remember correctly, you can't recover from that issue.

RE: Reprogramming the Interface MCU on nRF52 Dev Kit

julian24 — Wed, 14 Feb 2024 14:19:36 GMT

Hello,

May i ask how did you reprogram the interface MCU? I'm having a similar issue

thanks

julian

RE: Reprogramming the Interface MCU on nRF52 Dev Kit

Amanda Hsieh — Fri, 12 Aug 2022 08:36:31 GMT

Hi,

Do all other functions work? Do you see the derive come up as "BOOTLOADER" at this end? This is an important checkpoint. It must come up as "BOOTLOADER". if not, you programmed the actual nRF instead.

For the drag-and-drop, you can try to run "MSDDisable" via "J-Link Commander" on the kit.

Since the image is provided by my colleague instead of an official source, there are no guarantees.

-Amanda

RE: Reprogramming the Interface MCU on nRF52 Dev Kit

Mike O. — Wed, 10 Aug 2022 13:18:20 GMT

Progress! After loading the .hex from your link, the functionality has returned such that the LED flashes and the board comes up as a USB drive when I power up with reset held. However, now I am back to the original scenario where when I drag the "j-link-ob-sam3u128-v2-nordicsemi-170724.bin" file, Windows says that there is not enough room in the target to copy the file. Maybe I could load this file directly with the standalone JLink if I had the correct address? The default address will overwrite the new code.

RE: Reprogramming the Interface MCU on nRF52 Dev Kit

Amanda Hsieh — Wed, 10 Aug 2022 13:01:56 GMT

Hi,

Try this post.

-Amanda

RE: Reprogramming the Interface MCU on nRF52 Dev Kit

Mike O. — Wed, 10 Aug 2022 12:24:17 GMT

I am no longer able to get this to happen. When I first tried this, Windows told me that the file was too large and would not fit in the available space. After I loaded the file via the standalone JLink programmer, I no longer get the LED to flash when I power on with the reset button pressed.

RE: Reprogramming the Interface MCU on nRF52 Dev Kit

Amanda Hsieh — Wed, 10 Aug 2022 06:26:24 GMT

Hi,

Please try to press the IF BOOT/RESET button while power cycling the kit. It should then show up as a Removable Storage Device named "BOOTLOADER". Then you can drag and drop the J-LINK interface MCU firmware found here (v170724) onto the storage device to reprogram the JLINK firmware.

Regards,
Amanda