maxdog

Thank you. Ringing makes sense based on the randomness of it. I will try that tomorrow. I did do a search on the forum, but must have used bad search terms.

I have a T4.0 connected to a 800x480 display from buy-display.com (ER-TFTM070-5). The display is configured for 5 volt supply, and I am powering it from the 5 volt pin on the T4, which is plugged in to USB. My SPI wires from the T4 to the display...