topic Re: Kinetis Bootloader 1.2 not working with TWR-MKV31F51212 in Kinetis Microcontrollers

Kinetis Bootloader 1.2 not working with TWR-MKV31F51212

stevenneves — Thu, 12 Nov 2015 20:51:25 GMT

I have tested this now with a MK22F51212 Tower and this MKV31. The K22 worked just fine. I basically followed the attached Demo App User's Guide using both boards. The bootloader itself flashes properly to both. I am able to use blhost.exe with both and use the get-property 1 command and get a valid response from both. The issue lies with Figure 10, Section 5.7. I set the image and offset for the two boards (I am sure to use the correct led_demo binary for the proper eval board) and upon pressing update, the K22 erases the flash and writes the led_demo image and works properly while the KV31 can not get past erasing flash and instead I am greeted with "No response packet from target device.".

Re: Kinetis Bootloader 1.2 not working with TWR-MKV31F51212

mjbcswitzerland — Thu, 12 Nov 2015 23:35:40 GMT

Steven

There is a KBOOT binary for the TWR-KV31F120M (and an application) at http://www.utasker.com/kinetis/TWR-KV31F120M.html

Check that it works on your board to ensure that you have no HW problem.

Regards

Mark

Re: Kinetis Bootloader 1.2 not working with TWR-MKV31F51212

jeremyzhou — Mon, 16 Nov 2015 09:21:45 GMT

Hi Steven,

I was wonder if you can share the version of TWR-KV31F120M and specific product number of the KV31.

And I'd also like to know which line of code stucks in when you debug the tower_bootloader demo from the Kinetis_Bootloader_1_2_0.

I'm looking forward to your reply.
Have a great day,
Ping

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