topic Re: Will KL03 Software/Watchdog reset & memory issue in Kinetis Microcontrollers

Will KL03 Software/Watchdog reset & memory issue

tigerlo — Fri, 28 Apr 2017 09:27:58 GMT

Hi,

Will KL03 Software/Watchdog reset clear the internal RAM memory ?

or Is there any document describe this ?

Thanks.

Tiger

Re: Will KL03 Software/Watchdog reset & memory issue

BlackNight — Fri, 28 Apr 2017 11:16:50 GMT

Hi Tiger,

a watchdog does the same as a reset. So the watchdog itself does not clear the RAM, it would be the (C/C++) startup code which runs after reset.

I hope this helps,

Erich

Re: Will KL03 Software/Watchdog reset & memory issue

tigerlo — Fri, 28 Apr 2017 14:46:15 GMT

Erich,

thanks for your help, for one further question is that --

As document said when watchdog/software reset it will clear some major function (such as RTC), but it is not very clear list what kind of major function, so after reset it is better initialize all H/W function & don't need de-initialize (before reset initialize driver)every H/W driver , is above description right ?

Thanks.

Tiger

Re: Will KL03 Software/Watchdog reset & memory issue

Hui_Ma — Tue, 02 May 2017 05:43:18 GMT

Hi Tiger,

The watchdog/software reset will let all module registers with reset value, that need to re-initialize all used module registers. The SRAM content only be affected by power, the watchdog/software reset doesn't clear the SRAM content.

Wish it helps.

Have a great day,
Ma Hui

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Re: Will KL03 Software/Watchdog reset & memory issue

tigerlo — Tue, 02 May 2017 07:15:50 GMT

Hui_Ma,

Got it, Thanks.

Tiger