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FPGAmstrad

641 bytes added, 11:48, 27 January 2017
/* DONE : move SCART parameter into mist.ini */
==== DONE : move SCART parameter into mist.ini ====
Doing like in other cores : do use the global "scandoubler" option in mist.ini to switch between VGA and TV mode.
 
==== TODO : mix SCART H and V sync into HV sync (sort of C sync) ====
[http://github.com/mist-devel/mist-binaries/issues/35 Amstrad CPC core · Issue #35 · mist-devel-mist-binaries · GitHub] :
SCART TVs expect a composite sync. The VGAs vsync is connected the SCART pin used to detect a RGB signal and is constantly driven high. A TV will not cope with a video signal with separate H and V sync.
Bu tit's usually sufficient to xor hsync and vsync to get a csync acceptable for many TVs.
So something like this
Vsync=1;
Hsync=old_Vsync xor old_Hsync;
See if another core already succeed in generating a 50Hz SCART 15khz RGBS output...
=== DONE : CRTC1 ===
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