topic Re: How to use blhost.exe in Kinetis Microcontrollers

How to use blhost.exe

Bob99 — Fri, 27 Jan 2023 18:46:06 GMT

I am trying to get the command line flash utility, blhost.exe, to run with my K82F Freedom board under Windows.

I think it has to run in the Bootloader. I found a reference that says I can start the Booloader by holding Reset while plugging in the USB until the USB is registered. The Maintenance drive D:MAINTAINANCE shows up. However, my Com Port (com3) does not show up. The blhost fails because it does not see a com port.

I tried running blhost. It said it could not connect.
I tried running the KinetisFlashTool. It said it could not connect.

How do I get the bootloader running with the COM port?
How do I get this board into Booloader mode?

Re: How to use blhost.exe

Miguel04 — Thu, 02 Feb 2023 17:17:49 GMT

Hi @Bob99

I'v been looking for information of your case and I have one question, are you still able to load any project to the board? if this isn't the case, the board might be bricked, I found that the problems you are experiencing could mean the board is bricked. Here is a post for you to try to recover your board.

https://mcuoneclipse.com/2016/06/26/how-to-recover-the-opensda-v2-x-bootloader/

I also recommend you to read the Kinetis Bootloader Demo Application User's Guide, document number: KBTLDRDEMOUG

Best Regards, Miguel.

Re: How to use blhost.exe

Bob99 — Wed, 08 Feb 2023 20:27:45 GMT

This board is not bricked. It can run other example progams.

Re: How to use blhost.exe

Miguel04 — Thu, 09 Feb 2023 17:03:54 GMT

Hi @Bob99

Thanks for the information.

I was looking into your issue and these community post could help you.

Not able to communicate wih FRDMK82F board using blhost/flash tool

FRDMK-82 QSPI XIP problem

I'll be waiting for your response.

Best Regards, Miguel.