Hi Folks,
I’m currently observing flickering on a 10" TFT LCD screen and would appreciate some expert advice regarding the connections for LCD_CLK, LCD_HSYNC, and LCD_VSYNC.
At present, the signals are connected as follows:
MCU LCD_CLK → Non-Inverting Buffer IC → 22Ω series resistor → 300Ω @ 100 MHz Ferrite Bead (1 signal line) → LCD LCD_CLK
MCU LCD_HSYNC → Non-Inverting Buffer IC → 300Ω @ 100 MHz Ferrite Bead (1 signal line) → LCD LCD_HSYNC
MCU LCD_VSYNC → Non-Inverting Buffer IC → 300Ω @ 100 MHz Ferrite Bead (1 signal line) → LCD LCD_VSYNC
Could anyone please advise whether the flickering could be due to:
Incorrect ferrite bead selection or signal integrity issues?
Potential hardware-level filtering/matching concerns?
Or something that may need to be addressed in software configuration?
Any guidance, suggestions, or debugging tips would be greatly appreciated.
Thank you in advance!
