topic Re: Brand new FRDM-K22F not working in Kinetis Microcontrollers

Brand new FRDM-K22F not working

errorek123 — Tue, 26 Mar 2019 18:02:38 GMT

Hi,

I just bought new frdm-k22f board and when i plugged it to my pc, bootloader got corrupted, i read that i can recover from it using external debugger which i have but it's not that easy, when i try to flash bootloader i got :

" Error: Failed to erase sectors 0 @ address 0x00000000 (Algo35: Flash protection violation. Flash is write-protected.)"

I connected my debugger to J12 header and plugged usb into the OpenSDA USB.

unlock kinetis gives:

"Found SWD-DP with ID 0x2BA01477
Unlocking device...ERROR: Read from DP/AP register failed!"

connecting to core:

i can't do anything with this now, should i return this board?

Re: Brand new FRDM-K22F not working

mjbcswitzerland — Tue, 26 Mar 2019 23:35:21 GMT

If possible, use a pre-Win 8.1 PC to program one of the following OpenSDA loaders (when in boot mode): OpenSDA Serial and Debug Adapter | NXP (using drag-and-drop onto the boot-loader disk that shows).

This will avoid needing to program the debugger chip.

Afterwards be careful to never power the board with the reset switch held low in order to avoid it being lost again (on post Win 8 PC)

Regards

Mark

Complete Kinetis solutions, training and support: http://www.utasker.com/kinetis.html
Kinetis K22:
- http://www.utasker.com/kinetis/FRDM-K22F.html
- http://www.utasker.com/kinetis/TWR-K22F120M.html
- http://www.utasker.com/kinetis/BLAZE_K22.html
- http://www.utasker.com/kinetis/tinyK22.html

Re: Brand new FRDM-K22F not working

BlackNight — Wed, 27 Mar 2019 07:02:27 GMT

Does the board show up in BOOTLOADER mode? It is not clear to me what is corrupted (the bootloader, the OpenSDA debug up or something different)?

From the screenshot you can connect to the K20, but it seems you have turned on flash protection and read-out protection. If this is really the case, I'm affraid your K20 is bricked and you cannot recover it. You would have to unsolder it and put a new device on the board.

But you still can use the K22 on your board, you just have to use your external debugger for it.

I hope this helps,

Erich

Re: Brand new FRDM-K22F not working

errorek123 — Wed, 27 Mar 2019 07:24:30 GMT

No board doesn't communicate at all, only at first connection i had bootloader as MSD. I did not turned any flash protection, i don't even know how to do it.

Re: Brand new FRDM-K22F not working

kerryzhou — Wed, 27 Mar 2019 10:43:19 GMT

Hi Brian Smith,

If your on board K20 can't used as the debugger and you also can't update the K20 chip code to the latest one.

Two ways for you:

1. put a new K20 on the board.

2. use the external debugger to debug your on board K64 chip.

Wish it helps you!

Have a great day,
Kerry

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