Hardware Configurations

Two module configurations are maintained. They use the same FPGA firmware and the same host register interface, so software does not need a board-specific driver.

Supported boards

Feature	vera-full-audiojack	vera-mini-audiojack
Form factor	Full-size module	Reduced-size module
Digital video	VGA connector	VGA connector
Analog video	Composite and S-video connectors	Not fitted
Audio	Stereo audio jack	Stereo audio jack
Removable storage	MicroSD-card socket	MicroSD-card socket
Host interface	8-bit parallel bus	8-bit parallel bus

Full audio-jack board

Choose vera-full-audiojack when the analog video outputs are useful. It provides VGA, composite video, S-video, stereo audio, and a microSD-card socket on one board. The additional connectors and analog output circuitry require the larger outline.

Mini audio-jack board

Choose vera-mini-audiojack when board area matters and VGA is the required display connection. It keeps the stereo audio jack and microSD-card socket in a smaller outline. The parallel bus and programming connection remain compatible with the full board.

Common architecture

Both boards contain an iCE40UP5K FPGA, 128 KiB of internal video memory, configuration flash, a 25 MHz oscillator, level translation for the host bus, and a WM8524 audio DAC. Both expose the same five address signals, eight data signals, active-low bus controls, and active-low interrupt output.

Use the KiCad schematic for the selected board as the electrical source of truth. In particular, check connector numbering, supply pins, signal levels, and programming-header orientation before designing a carrier board.