topic Re: bootloader for K70 in MCU Bootloader

bootloader for K70

johnatkins — Fri, 19 Jan 2018 19:40:47 GMT

We would like to reprogram a Kinetis K70 from UART4 on the K70. This is a way to implement a firmware upgrade. Does anyone have anything like this, or any advice?

Thank You.

John

Re: bootloader for K70

Hui_Ma — Wed, 24 Jan 2018 06:13:54 GMT

Hi John,

Please refer below links for the serial bootloader for K70 product:

https://www.nxp.com/docs/en/application-note/AN2295.pdf

Developer’s Serial Bootloader.

https://community.nxp.com/docs/DOC-330712

Wish it helps.

Have a great day,
Mike

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Re: bootloader for K70

merigotbertrand — Thu, 08 Feb 2018 12:46:13 GMT

Hello john,

I just finish to debug a bootloader for a KV46,

In the original version, the Bootloader is very powerfull, it's scanning all the possible link (as a slave)

I2C,SPI, CAN and UART

You can use any uart you want you only have to modify the original version 2.0.0 to adapt it to you hardware.

check the files :

Hardware_init_Kxx.C files.

Peripherals_Kxx.C files

Peripheral_pinmux.h

No modification needed for kinetisflashtools

regards

bertrand