LPC驱动1024*768屏幕显示水波纹

[saidadiao]

使用LPC1788的MPU，驱动1024*768的24位TFT屏幕，LCD时钟为19.2M的时候，屏幕显示图像正常，但有水波纹，频闪现象，LCD时钟为32M的时候，屏幕频闪现象消失，但是出现花屏现象，屏幕撕裂

[Alice_Yang]

Hello @saidadiao 

About LCD, how about have refer to AN:

https://www.nxp.com/docs/en/nxp/application-notes/AN12027.zip 

and thread:

https://community.nxp.com/t5/LPC-Microcontrollers/LPC1788-lcd-controller-configuration/m-p/702548 

BR

Alice

[saidadiao]

我想知道，LPC1788支持的1024*768分辨率，32位屏的最大LCD时钟频率是多少

[Alice_Yang]

Hello @saidadiao 

Are your sure 32 bits? Or 24 bits? 

And do you want to know the max clock source of LPC1788 LCD clock frequency or your LCD frame? 

You can send the datasheet of LCD to me.

BR

Alice

[saidadiao]

刚回复了屏的规格书，屏颜色深度是24bit的

[Alice_Yang]

Hello @saidadiao 

1) From the DS of LCD you send, the frequency is out of the LPC1788 support:

2) Please check the configuration of your LCD driver:

HSW HFP HBP VSW VFP VBP

BR

Alice

[saidadiao]

谢谢，问题已经解决了