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Open Source FPGA Expansion Card for the Apple II
2FPGA The A2FPGA is primarily an HD video and Mockingboard-compatible sound card for the Apple II, II+, //e, and IIgs. It's a small, Apple II peripheral card that can be installed in any Apple II computer II, II+, //e, IIgs.
The A2FPGA uses a modern FPGA (field-programmable gate array or "programmable logic") to provide precise timing-accurate interfacing to the Apple II bus. For IIgs, you must set the control panel slot 4 to "My Card" The FPGA used on A2FPGA takes ~2 seconds to power on and sync to an HDMI display. The A2FPGA firmware is easily updated on any PC or Mac and is based on open-source code so that new functionality and bug fixes from the developer community can be added over time.
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