topic How to start program when powered in Kinetis Microcontrollers

How to start program when powered

yann_munich — Sun, 27 Oct 2019 06:02:26 GMT

Hi there,

I finally finished my program, and now I want to save it on my FRDM k64f and I want to start it automatically when powered. I tried to use the Release version but it still not start.

It start when I give the command over J7-Link when debugging with MCU.

Must I use a SD card?

Thx in advance.

Re: How to start program when powered

nxf58904 — Mon, 28 Oct 2019 06:32:07 GMT

Hi，

Normally,the MCU will run form address 0x0 in flash when you reset after download the code into MCU .

Which J-link command you used and have you checked if you have programed the code to ram address?

Jianyu:

Have a great day,
TIC

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Re: How to start program when powered

yann_munich — Mon, 28 Oct 2019 12:33:30 GMT

Hi,

I'm using JLink720000000. Where can I check if I programmed it to RAM address (Probably didn't do it)?

Thx in advance!

Re: How to start program when powered

nxf58904 — Tue, 29 Oct 2019 09:17:50 GMT

Hi,

You can check your ICF file.

"define symbol __ICFEDIT_intvec_start__ = __ICFEDIT_region_RAM_start__;" means run form ram address

"define symbol __ICFEDIT_intvec_start__ = __ICFEDIT_region_FLASH_start__;" means run from flash address

Jianyu:

Have a great day,
TIC

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