topic Re: how to use LPC55s69 to control touch screen in LPC Microcontrollers

how to use LPC55s69 to control touch screen

284286985 — Thu, 24 Oct 2019 09:53:50 GMT

dear NXP,

how to use LPC55s69 to control touch screen, like add a touch screen for 55S69 EVK, is there any example or application NOTE?

please help check. thanks ~~

Rike Yao

Re: how to use LPC55s69 to control touch screen

ZhangJennie — Fri, 25 Oct 2019 05:35:48 GMT

HI rike yao

There is emWin demo code included in LPCXpresso55S69 SDK, make sure you select emWin component when download SDK.

demo is under folder:

SDK_2.6.x_LPCXpresso55S69\boards\lpcxpresso55s69\emwin_examples

Hardware requirements
=====================
- Micro USB cable
- LPCXpresso55S69 board
- Adafruit TFT LCD shield w/Cap Touch
- Personal Computer

=====================

Hope this helps.

Have a great day,
Jun Zhang

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Re: how to use LPC55s69 to control touch screen

284286985 — Fri, 25 Oct 2019 06:02:59 GMT

thanks, Jennie.

would you give me a link for buy "Adafruit TFT LCD shield w/Cap Touch" in jd/tmall/taobao? I'm not familiar with touch, afraid of buy a touch with 55s69 screen. thanks in advanced.

Rike

Re: how to use LPC55s69 to control touch screen

ZhangJennie — Fri, 25 Oct 2019 08:22:37 GMT

Rike,

This touch is not NXP product. I don't have it in my hand. But I think it should refer this one:

https://www.adafruit.com/product/1947

Have a great day,
Jun Zhang

-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!

Have a great day,
Jun Zhang

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Note:
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Re: how to use LPC55s69 to control touch screen

ErichStyger — Mon, 28 Oct 2019 06:34:31 GMT

Hi Rike,

I'm using both the resistive and the capacitive touch (https://www.adafruit.com/product/1947) screen from Adafruit with the LPC55S69-EVK. I recommend the capacitive one because this one does not require special calibration and works very well.

I have a project available on GitHub:

mcuoneclipse/Examples/MCUXpresso/LPC55S69-EVK/LPC55S69_AdafruitLCD at master · ErichStyger/mcuoneclipse · GitHub

This project uses the open source littlevGL GUI (see LittlevGL - Open-source Embedded GUI Library and Tutorial: Open-Source Embedded GUI Library LittlevGL with i.MX RT1050-EVK | MCU on Eclipse ).

I hope this helps,

Erich

Re: how to use LPC55s69 to control touch screen

284286985 — Mon, 28 Oct 2019 07:04:07 GMT

thank a lot, Erich and will have a try to duplicate the demo.

Rike

Re: how to use LPC55s69 to control touch screen

ErichStyger — Mon, 28 Oct 2019 09:07:45 GMT

Hi Rike,

I plan to write up an article on MCU on Eclipse | Everything on Eclipse, Microcontrollers and Software over the next days because the board/LCD needs a hardware modification to work with the LPC55S69.

Erich

Re: how to use LPC55s69 to control touch screen

284286985 — Tue, 29 Oct 2019 10:26:58 GMT

hi, Erich,

that's great

when it's ok, would you inform me ?

Rike

Re: how to use LPC55s69 to control touch screen

ErichStyger — Tue, 29 Oct 2019 19:38:45 GMT

Hi Rike,

Yes, I will post a message here.

Give me a few days.

Erich

Re: how to use LPC55s69 to control touch screen

ErichStyger — Sun, 17 Nov 2019 19:40:28 GMT

Article is published now with Open Source LittlevGL GUI Library on Adafruit Touch LCDs with NXP LPC55S69-EVK | MCU on Eclipse

I hope this helps,

Erich