LPC MicrocontrollersのトピックRe: LPC82x touch solution cannot return touch pads number

LPC82x touch solution cannot return touch pads number

xiangchangmo — Wed, 15 Aug 2018 10:23:02 GMT

Now the company's fader project uses lcp824 chips. NXP's touch solution is used on touch pads. I ported the touch library to the LPC824 life development board. The question now is that you can't identify which pads triggers, I can't find the reason.

The attachment is my hardware connection and code changes.

Besides. I'd like to ask the NXP engineer, can you provide me with a copy of the touch solution source code? Now there are only. lib and. a files, and you don't understand the principles. Thank you!

Re: LPC82x touch solution cannot return touch pads number

jeremyzhou — Thu, 16 Aug 2018 02:00:37 GMT

Hi Rex Lam,
Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.
There's the AN11620: LPC82x Touch Solution Application Note and its sample code, please refer to them for details.
Have a great day,
TIC

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Re: LPC82x touch solution cannot return touch pads number

xiangchangmo — Thu, 16 Aug 2018 03:21:14 GMT

HI jeremyzhou

I've read about lpc82x touch solution's doc, including AN11620: LPC82x Touch Solution Application Note.

but it doesn't solve the problem. I don't know if you can provide the source code for touch solution. thank you!

best regards

xc.mo

Re: LPC82x touch solution cannot return touch pads number

jeremyzhou — Thu, 16 Aug 2018 07:17:46 GMT

Hi,
I had already attached the source code of AN11620 in previous reply, please check it.
Have a great day,
TIC

Re: LPC82x touch solution cannot return touch pads number

xiangchangmo — Thu, 16 Aug 2018 08:11:28 GMT

Hi jerrmyzhou

I said the source code for LPC82x_Touch_lib_v0100.lib, not the example of touch solution. My project was modified according to AN11620_source_code_0.zip. thank you!

Re: LPC82x touch solution cannot return touch pads number

jeremyzhou — Fri, 17 Aug 2018 04:26:20 GMT

Hi,
You need to sign an NDA with NXP for requesting the code of touch library.
Please contact online business service to learn the details via the https://www.nxp.com/support/support:SUPPORTHOME
Have a great day,
TIC