Kinetis MicrocontrollersのトピックRe: K64F only enter Bootloader

K64F only enter Bootloader

chenlucas — Tue, 14 Nov 2017 03:59:14 GMT

Hello everyone,

I have a question about FRDM K64F board.

Today, I used K64F plugin computer ,

But K64F OpenSDA Green LED isn`t bright work, if i press reset switch.

My computer will get K64F enter bootloader mode.(Green LED will blink)

My computer OS is windows 10, and I updated below firmware version.

OpenSDA version / bootloader

DAPLink rev0244 OpenSDA v2.2 Bootloader(Download Binary / Source Code)

Thanks,

Re: K64F only enter Bootloader

Alice_Yang — Tue, 14 Nov 2017 08:02:20 GMT

Hello Chen,

- There are three debug inter faces we can choose for OpenSDA: Segger J-Link OpenSDA, P&E OpenSDA interface, or Mbed interface.

Please Drag'n drop or copy and paste the corresponding OpenSDA Application binary file into the BOOTLOADER drive from your computer file explorer.

About the detail steps please refer to :

OpenSDA Serial and Debug Adapter|NXP

- Also there is a summary for debug interface, it is for FRDM-K22, while it is the same with FRDM-K64 .

Summary of FRDM-K22F debug interface

Hope it helps!

Have a great day,
TIC

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Re: K64F only enter Bootloader

chenlucas — Wed, 15 Nov 2017 05:44:46 GMT

Hi Alice_Yang,

Thank you,

I have follow the step update firmware K64F will reset.

But always enter bootloader.

I do not use K64F a period of time.

Final, K64F can normal work.

I don`t know the issue source.

but I have twice experience, I want to know the source.

I want to avoid the issue.

Re: K64F only enter Bootloader

Alice_Yang — Thu, 16 Nov 2017 09:27:03 GMT

Hello Chen,

How about on Win7 ?

And could you please take a video or screenshots about your steps .

Alice

Re: K64F only enter Bootloader

chenlucas — Fri, 17 Nov 2017 02:04:44 GMT

Hi Alice ,

My computer used win 10 OS.

Now, My K64F can get normal mode.

My step is ...

step 1) Download SDA firmware

step 2) Hold the reset sw

step 3) next plugin usb cable in computer

step 4) disk appear bootloader disk in my computer

step 5) moving *.bin file to bootloader disk

Final K64F reset

But firmware don`t update.

Thank Alice!

Re: K64F only enter Bootloader

Alice_Yang — Sun, 19 Nov 2017 05:04:59 GMT

Hi,

1. I recommend you use another PC (it's better Win7) to check whether your board work well,

check the problem is your board or PC.

2. step 5) moving *.bin file to bootloader disk , please send this .bin file to me , I test it on my board.

ALice