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Bootloader for the K70

Question asked by Pierrick Cosma on May 11, 2016
Latest reply on May 12, 2016 by jeremyzhou



For my project I use the MK70FN1M0VMJ12 microcontroller. I tried to add a bootloader mode in order to program the microcontroller without using the JTAG probe.

Thanks to the NXP community, I found a bootloader which corresponds to my needs:

A few days ago, I succeeded developing a program with KDS which can be loaded via the bootloader.

Now, I want to change my program because it needs some evolution. But after modifications, the soft does not start after in spite of a correct flash of the micro.

My procedure of compilation:

I modify the linker file (offset: 0x10000 on addresses)

I create a flash Image file Motorola S-record

I add “--srec-forceS3” for the compilation of the image

I change the name of the file in “image.s19” and I use it on a USB key.


I do not understand why the first program was Ok and now I cannot modify this.


Could you give me some advice?


Thank you in advance for your help.