March 23rd, 2025

RGB2HDMI for the Amiga 1000

Celso Martinho upgraded his Amiga 1000 with an RGB2HDMI adapter, enhancing video output quality. The solution captures 12-bit signals and outperforms previous upscalers, featuring a custom 3D-printed back cover.

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RGB2HDMI for the Amiga 1000

Celso Martinho recently upgraded his Amiga 1000 with an internal RGB2HDMI adapter, an open-source project that converts digital RGB video signals from vintage computers to HDMI with low latency. The RGB2HDMI project, initially designed for the BBC Micro, has expanded to support various vintage systems. It utilizes a Raspberry Pi Zero and a CPLD to process TTL RGB outputs from computers. The Amiga 1000 version captures 12-bit OCS/ECS signals directly from the Denise video chip, as later models like the A1200 use 24-bit signals that the current setup cannot support. Martinho detailed the assembly process, which included creating a custom 3D-printed back cover for the A1000 to accommodate the HDMI connector and switch. After installation, he successfully booted the Amiga and accessed the RGB2HDMI menus, achieving high-quality video output without flickering, even in interlace mode. He noted that the RGB2HDMI solution significantly outperforms the previous GBS-8220 upscaler in terms of video quality.

- Celso Martinho upgraded his Amiga 1000 with an RGB2HDMI adapter for better video output.

- RGB2HDMI converts digital RGB signals to HDMI using a Raspberry Pi Zero and CPLD.

- The adapter captures signals directly from the Denise chip, supporting 12-bit OCS/ECS Amigas.

- A custom 3D-printed back cover was created to house the HDMI connector and switch.

- The RGB2HDMI solution provides superior video quality compared to previous upscalers.

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