In case you pick a low pixel clock resolution like 320x240p (below 20MHz pixel clock), please be aware that some GPU/boards will crash instantaneously your computer ! Most specifically, among the 15kHz resolutions you will find super-resolutions like 1280x240p or 1920x240p, which means you will need to pass a horizontal stretch parameter of 4:1 or 6:1 to your emulators to correct the aspect ratio. If you download the companion App from the link below and run 'VideoAmp.exe', you will see the list of available EDID.

So far, I only report 1 resolution at a time (add its interlaced alternative) so that the PC operating system (Windows, Mac or Linux) will be enforced to output such resolution. This is purelly hardware-based and do not need any specific software or driver on your computer. If you want to do that, you would still need some tools like Emucrt to tweak the video refresh rate or the vertical resolution (208p, 224p, etc.) to exactly match your native game video signal.īasically the board will report itself as a 15kHz (or 24kHz or 31kHz) CRT monitor with a unique preferred resolution using EDID identification through the VGA port. It's basically the same as a jammasd without the jamma connector and less emulated keys.įor those who are interested or for more details, please have a look to the topic on gamoover forum here Ĭlick to expand.This is not yet possible. The board also allows to emulate a basic keyboard with just 5 keys for those who want to complete their wiring already done with a hackpad and who are looking for a way to add the TEST/SERVICE/MENU/etc. Otherwise, you'll have to go back to the Calamity AMD driver and you'll only benefit from the video amp, csync and protection filtering. The only constraint is to have an Intel/NVIDIA/AMD graphics card with a native VGA port to benefit from the automatic display identification. In addition, there is a SCART RGB output if you ever need to put a 15kHz CRT TV in place of your original arcade monitor that sadly gave up a few years ago. It remains AMD/Calamity compatible, but also opens up compatibility with Intel and NVIDIA cards in a plug-and-play manner. It creates a video csync signal with wide chassis compatibility (Nanao, Hantarex, Sony TV have been tested), and it emulates a display identification signal of a 15/24/31kHz monitor with some super-resolutions at the VGA level (EDID), so you don't need any AMD specific driver, or to tweak with the output frequencies with Custom Resolution Utility. The board is a video amplifier with out-of-range frequency filtering to protect the chassis of the monitor.

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