Interfacing touch screen lcd with LPC1769

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Interfacing touch screen lcd with LPC1769

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ashinde555
Contributor I

I was trying to interface a touch screen display with lpcxpresso lpc1769

I am using waveshare 5" with xpt2046 touch controller, but it has HDMI port for display.

How can interface this display with lpc1769.

Pls help.

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xiangjun_rong
NXP TechSupport
NXP TechSupport

Hi, Aniket,

 

xiangjun_rong_0-1606113137477.png

 

From above timing, you can use spi interface of LPC1769 as master to access the xpt2046. You can use the byte length to write and read.  If you use Busy signal, you can connect the Busy to a GPIO, you can read the logic of Busy, after it becomes low, you can write the spi transmit register to launch transfer so that you can read the ADC sample.

Hope it can help you

BR

XiangJun Rong

 

 

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