Kinetis Microcontrollersのトピックhow to start program execution without press RESET button in frdmk64

how to start program execution without press RESET button in frdmk64

sudhakarp — Wed, 03 Jun 2015 06:26:15 GMT

hi,

i am using frdmk64. after loading .bin file i am pressing Reset button its start executing program.its ok.

but once i removed SDAUSB and after when i connect its not executing program. after when i pressed RESET switch only again its start executing code. why thinks happening? how to avoid this problem..?

thanks and regards,

sudhakar p

Re: how to start program execution without press RESET button in frdmk64

soledad — Wed, 03 Jun 2015 18:55:27 GMT

Hello Sudhakar,

Please find the answer in the below thread:

Re: FRDM-K64F booting issue when powered from USB port

Have a great day,
Sol

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Re: how to start program execution without press RESET button in frdmk64

sudhakarp — Thu, 04 Jun 2015 11:01:26 GMT

hello soledad,

thank you. but my question was simple.is every time we want to press reset switch to execute code?

if yes why?

regards,

sudhakar p

Re: how to start program execution without press RESET button in frdmk64

BlackNight — Thu, 04 Jun 2015 11:34:14 GMT

Yes, if you are using the MSD bootloader, you have to press the reset button to start the application.

If you do not want to press the reset button, I recommend that you do not use the MSD bootloader, but use the debugger instead. As from Eclipse/Kinetis Design Studio, you can press one button to download and run the application, see Emulating Eclipse ‘Run’ with ‘Debug’ Configuration | MCU on Eclipse

Otherwise, use the gdb in command line mode and use the gdb 'detach' command: this will disconnect from the downloaded application and start it.

I hope this helps,

Erich

Re: how to start program execution without press RESET button in frdmk64

mjbcswitzerland — Thu, 04 Jun 2015 11:54:55 GMT

If you install a boot loader from µTasker Kinetis FRDM-K64F support (also allows USB-MSD loading) then the new code will start without needing to press the reset button.

Regards

Mark

Kinetis: µTasker Kinetis support

K64: µTasker Kinetis FRDM-K64F support / µTasker Kinetis TWR-K64F120M support / µTasker Kinetis TWR-K65F180M support

For the complete "out-of-the-box" Kinetis experience and faster time to market

Re: how to start program execution without press RESET button in frdmk64

sudhakarp — Thu, 04 Jun 2015 13:57:50 GMT

hi,

how to download bootloader file. there no option to download file.

regards,

sudhakar p

Re: how to start program execution without press RESET button in frdmk64

mjbcswitzerland — Thu, 04 Jun 2015 14:20:46 GMT

>>how to download bootloader file. there no option to download file.

Do you mean how to download it from the web site? If this is what you mean you just click on the file link high-lighted in yellow:

There is also a verson for loading via Ethernet (from any web browser) called uTaskerSerialBoot_FRDM-K64F_KBOOT_HID_UART_MSD_WebServer.bin (rather than with SD card loading).

Regards

Mark

Kinetis: µTasker Kinetis support

K64: µTasker Kinetis FRDM-K64F support / µTasker Kinetis TWR-K64F120M support / µTasker Kinetis TWR-K65F180M support

For the complete "out-of-the-box" Kinetis experience and faster time to market

Re: how to start program execution without press RESET button in frdmk64

sudhakarp — Fri, 05 Jun 2015 04:05:35 GMT

Thank you mark.

regards,

sudhakar p