My RGBtoHDMI-adapter-board design for A500.
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Video:
https://drive.google.com/file/d/1ksP-LVyoxUxEtZK_JW-vs8qUCuZv387j/view?usp=sharing
Follow the instructions here:
https://github.com/hoglet67/RGBtoHDMI/wiki/Quick-Start-Guide#installing-the-software
...and then...
To auto configure for correct profile and operation with single button, copy the files in the appropriate Amiga folder into the root folder, overwriting any existing files.
![](/jbilander/A500_RGBtoHDMI/raw/main/images/RPi_firmware_and_config.jpg)
Position | Name/Value | Package | Notes |
---|---|---|---|
U1 | 2x24 Round Female Pin Header Connector | 1x40 2.54mm pitch | Cut down to 2x24 Pin for socketing Denise |
U2 | XC9572XL-10VQ64 | VQFP-64 | Xilinx 72-mc CPLD 52 I/O |
U3 | LM1117-3.3 or AMS1117-3.3 | SOT-223 | 3.3V 1A Low Drop-Out (LDO) Voltage regulator. |
U4 | 2x24 Single Row Male Pin Connector Strip | 1x40 2.54mm pitch | Cut down to 2x24 Pin |
J1 | 2X20 Pin Double Row Straight Female Pin Header 2.54mm pitch | 2x20 2.54mm pitch | 2x20 Pin Header |
R1 | 1k | 0805 | Pull-down resistor (SPDATA) |
R2 | 4.7k | 0805 | Pull-down resistor (DETECT) |
C1 | 10uF | 1206 | 5V Decoupling capacitor |
C2 | 10uF | 1206 | 3V3 Decoupling capacitor |
C3 | 0.1uF = 100nF | 0805 | 3V3 Decoupling capacitor |
C4 | 0.1uF = 100nF | 0805 | 3V3 Decoupling capacitor |
C5 | 0.1uF = 100nF | 0805 | 3V3 Decoupling capacitor |
C6 | 0.1uF = 100nF | 0805 | 3V3 Decoupling capacitor |
JTAG | JTAG Pin Header | 2.54mm pitch | (Optional) Hold JTAG-header against holes while programming is enough. |
PWR | VCC/GND-header | 2.00mm pitch | A 2.54mm two-pin header fits surface mounted on pads |
Cable:
Ribbon FPV HDMI-Compatible Connector Flexible Flat Cable
https://www.aliexpress.com/item/4000014554460.html
- FFC 10cm (or whatever length you prefer, cable on pic is 10cm)
- Connector-A4
- Connector-C1
Happy Hackin'