LPC MicrocontrollersのトピックRe: LPC4370 firm

LPC4370 firm

takuyahasegawa — Mon, 03 Sep 2018 10:03:47 GMT

We use LPC4370 for senssor signal processing.
We have trouble that firm data inside LPC4370 is initialized during power off for 3days.
And then we have rewrote data to LPC4370, that oparate nomally.
So, we guess that that is CPU trouble.
If you have any coping method, please let me us.

Re: LPC4370 firm

jeremyzhou — Tue, 04 Sep 2018 01:40:45 GMT

Hi,
Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.
The LPC43x0 series doesn't contain internal flash, only SRAM, so these chips would lose data after power-off.
Hope this is clear.

Have a great day,
TIC

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Re: LPC4370 firm

takuyahasegawa — Thu, 06 Sep 2018 01:23:16 GMT

Thank you

Now I use senssor signal proessing board that consists LPC4370, and I write firmware

into the board.

"LPC4370 Block diagram" descrives that LPC4370 has 64kB ROM.

So I think that firmware is written into that 64kB ROM.

Is this 64kB ROM just read only?

Re: LPC4370 firm

jeremyzhou — Fri, 07 Sep 2018 03:42:58 GMT

Hi,
The ROM 64 KB section is used to store the bootloader, it's forbidden to program or write data this section.
Hope this is clear.

Have a great day,
TIC

Re: LPC4370 firm

takuyahasegawa — Fri, 07 Sep 2018 04:02:13 GMT

Thank you very mush!

Your assistance is very helpful for me.