From 443b260913a92cb71989cd5565d05726ead634b3 Mon Sep 17 00:00:00 2001 From: harbaum Date: Mon, 10 Sep 2018 10:51:16 +0200 Subject: [PATCH] INI option --- tutorials/soc/readme.md | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/tutorials/soc/readme.md b/tutorials/soc/readme.md index 760e072..f380ff2 100644 --- a/tutorials/soc/readme.md +++ b/tutorials/soc/readme.md @@ -745,6 +745,18 @@ It is thus often possible to use the YPbPr with or without scandoubler. With scandoubler enabled the resulting 720p modes may even use scanline effects. +In order to make use of such a cable a MIST core has to output the +color differnce signals instead of RGB and it must output a composite +sync signal on the VGAs hsync output and a static high voltage on the +VGAs vsync output. Using the OSD to switch between these two modes +would be rather useless since with the wrong setting the OSD is +invisible. The MISTs firmware thus accepts a [`scandoubler_disable` +option in the +`mist.ini`](https://github.com/mist-devel/mist-board/wiki/DocIni#ypbpr) +to globally force cores supporting this video mode. This option can be +combined with the [`scandoubler_disable` +option](https://github.com/mist-devel/mist-board/wiki/DocIni#scandoubler_disable) + This makes a YPbPr connection a very nice choice when connecting the MIST to many modern TVs.