LCD TFT display not showing image correctly

[Riccardo Franceschetto]

Hello,

I'm usign STM32F429II MCU , with ltdc pheripheral to command an external lcd tft display 480*272.

I configured all the fmc sdram parameters and initialization etc...

TouchGFX generation for the image etc...

Checked clocks etc...

Do not know what to inspect to find the cause of this.

It's a custom made board.

[MM..1 · Accepted solution]

Start with internal RAM framebuffer test and ltdc only setup, seems as sdram issue.

[Riccardo Franceschetto]

That worked! thank you.

How would you suggest to verify data integrity for the sdram? examples online are very few.

[MM..1]

check your board sdram chip bus connection or FMC init config