topic Re: TWR-KM34Z75M Maintenance mode in Kinetis Microcontrollers

TWR-KM34Z75M Maintenance mode

KKR231 — Thu, 19 Sep 2024 10:00:35 GMT

In my TWR-KM34Z75M board goes into maintenance mode. I erase memory using J-Link but when I press reset button again it goes into maintenance mode. For that what I have to do?

Thankyou

Re: TWR-KM34Z75M Maintenance mode

Pavel_Hernandez — Fri, 20 Sep 2024 00:15:36 GMT

Hello, my name is Pavel, and I will be supporting your case, I reviewed your information, and the mode of Maintenance Mode sometimes is when the MK20 (debugger) of the frdm is prepared to update the firmware.

*So, this thread could help you the debugger on the board, to get out of the maintenance mode.

OpenSDA Serial and Debug Adapter | NXP Semiconductors

Best regards,
Pavel

Re: TWR-KM34Z75M Maintenance mode

KKR231 — Fri, 20 Sep 2024 10:10:38 GMT

Thankyou @Pavel_Hernandez for your response,

But in given link there is files for TWR-KM34Z50M and I required for TWR-KM34Z75M.

Re: TWR-KM34Z75M Maintenance mode

Pavel_Hernandez — Fri, 20 Sep 2024 22:39:12 GMT

Hello, do not worry you could use the same firmware because the debugger on the board should be the same.

Could you try it? let me know if have more doubts.

Best regards,
Pavel

Re: TWR-KM34Z75M Maintenance mode

KKR231 — Mon, 23 Sep 2024 04:59:29 GMT

Hello @Pavel_Hernandez

I tried steps which is given in OpenSDA Serial and Debug Application and I successfully upload that cmsis-dap .bin files in bootloader section of my board. But when I reconnect and use MCUXPresso, board is not shown (PFA) as well as board is not came from maintenance board.

After I came into bootloader section that copy files are not shown.

Re: TWR-KM34Z75M Maintenance mode

Pavel_Hernandez — Tue, 24 Sep 2024 22:22:07 GMT

Hello, I confirm each board has the same debugger on the board MK20, but could you try with the J-Link driver?

SEGGER - The Embedded Experts - Downloads - J-Link / J-Trace

Best regards,
Pavel