Kinetis Microcontrollers中的主题 Re: How can I boot the MK20 ?

How can I boot the MK20 ?

kyungkeunpark — Tue, 17 Jan 2017 10:36:51 GMT

I have like to boot the board with MK20DX256VLH7. ( we will make the board )

( MK20 : internal flash size 256KB, internal eeprom size 2KB )

We are going to use the bootloader (NXP_Kinetis_Bootloader_2_0_0) and application (SDK_2.0_MK20DX256xxx10).

My qeustion is, is it possible to do the following sequence ?

Compile the bootloader.
Write the bin file to the internal EEPROM. (0x00)
Compile the Application.
Write the bin file to the internal Flash. (0x00)
Power on the MK20 board.
Jump to the internal flash after running the bootloader from Internal EEPROM.
Excution the Application from Internal Flash.

If this sequence is possible, can I load the bootloader into the EEPROM with JTAG ?

Re: How can I boot the MK20 ?

kyungkeunpark — Wed, 18 Jan 2017 08:52:32 GMT

Do you think I was wrong?

Nobody gives any advice.
I think it's strange to put the bootloader in the EEPROM.
If so, is it a good idea to put the bootloader at 0x0 in the internal flash

and put the application after the offset address?

Re: How can I boot the MK20 ?

jeremyzhou — Thu, 19 Jan 2017 01:33:29 GMT

Hi kyungkeun park ,

Thank you for your interest in NXP Semiconductor products and the opportunity to serve you.

I'm afraid your purpose can't achieve.

Hope this is clear.
Have a great day,
Ping

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