Integrated

Integrated Solution rev 1.0

DO NOT REPRODUCE, CRITICAL ERRORS IN DESIGN

This design features a nasty error where the internal and IO power rails were accidentally swapped. Do not reproduce this design. A new revision is in the works.

Introduction

This is a PCB that integrates everything needed to drive the display. It is designed to sit on the back of the display without interfering with the display frame. It is specifically designed for the pinout of the newer non-standard displays that have come out of China in the recent years. Specifically those that support the RGB666 interface.

This design utilizes a Spartan 6 FPGA to drive the display. This was chosen over dedicated ASICs due to cost and adaptability. This should allow me to add features such as a splash screen or other custom features that are not possible with a dedicated ASIC.

Features

• Spartan 6 FPGA ¹
• DVI Input ²
• RP2040 microcontroller
• USB-C ^{3 4}
• Backlight driver with dimming control
• LCD connector

LCD Connector

The LCD connector itself is a ZIF 40 pin 0.5mm pitch connector. The following pinout is in use, with some pins being possible to reconfigure in the FPGA:

TO BE ADDED

Footnotes

1. XC6SLX9-TQG144 ↩

2. The DVI input is over a HDMI-like connector. This is due to licensing issues with the HDMI standard that I cannot afford to pay for. Any reference to HDMI in this project is purely for the sake of simplicity and is not meant to imply that this project is HDMI compatible. ↩

3. Does not support PD. ↩

4. Limited to USB 1.1 speeds. This is limited by the RP2040 which handles the USB interface. ↩