https://github.com/jbilander/a500_rgbtohdmi

RGBtoHDMI CPLD-adapter-board for A500.
https://github.com/jbilander/a500_rgbtohdmi

Last synced: 5 months ago
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RGBtoHDMI CPLD-adapter-board for A500.

• Host: GitHub
• URL: https://github.com/jbilander/a500_rgbtohdmi
• Owner: jbilander
• License: gpl-3.0
• Created: 2022-03-16T12:00:29.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2023-08-13T11:03:26.000Z (almost 3 years ago)
• Last Synced: 2025-07-13T16:42:10.211Z (12 months ago)
• Language: VHDL
• Homepage:
• Size: 18 MB
• Stars: 8
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# A500_RGBtoHDMI

My RGBtoHDMI-adapter-board design for A500.

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### Build

















































































































































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Video: 


https://drive.google.com/file/d/1ksP-LVyoxUxEtZK_JW-vs8qUCuZv387j/view?usp=sharing

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### RPi Zero configuration

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.







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BOM Rev. 1A

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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](https://www.aliexpress.com/item/32854215610.html)

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


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Happy Hackin'