MK22FX512AVLL12 bootloader

dusek_martin — Wed, 13 Oct 2021 19:08:15 GMT

We were forced to port our hardware from MK22FN512VLL12 to MK22FX512AVLL12, which is the most similar MCU to MK22FN512VLL12 available.

We use USB HID bootloader from NXP_Kinetis_Bootloader_2_0_0 package, it has a bootloader, that can run on MK22FN512VLL12. We flash new firmware to our board using KinetisFlashTool.exe. My question is: is there the same bootloader that can run on MK22FX512AVLL12? If negative, what bootloader is the most similar one to MK22FN512VLL12's USB HID bootloader we used? What changes do we have to do to code (one is obvious - MK22FX512AVLL12 doesnt have 48MHz IRC, we have external crystal on our board)?

Re: MK22FX512AVLL12 bootloader

jingpan — Fri, 15 Oct 2021 09:45:58 GMT

Hi @dusek_martin ,

There isn't other bootloader witch can use on MK22FX512AVLL12 directly. K60D100M has same clock structure. But it's clock is 100M. You have to modify the code too.

Regards,

Jing

Kinetis Microcontrollers中的主题 MK22FX512AVLL12 bootloader

MK22FX512AVLL12 bootloader

Re: MK22FX512AVLL12 bootloader