The RGBtoHDMI interface converts the "digital" RGB video signal from the BBC Micro or Electron to HDMI compatible with most modern TV/Monitors.

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David Banks 0a9b31ffb9 Pi Firmware: Optimizations towards getting 640x480 VGA working (manual merge from Ian) Change-Id: Ic2f8617a01337a7e7b1e97106eb9e2231d1eddce		2019-03-14 19:16:00 +00:00
kicad	KiCad: v4 minor changes (moved P5 1.8mm, changed name to RGBtoHD)	2018-07-31 11:17:36 +01:00
kicad_atom/v1	Atom PCB: Prototype (improved ground routing)	2018-11-22 17:23:53 +00:00
src	Pi Firmware: Optimizations towards getting 640x480 VGA working (manual merge from Ian)	2019-03-14 19:16:00 +00:00
vhdl	CPLD: Added sync invert function (now v5.0)	2019-03-14 18:10:30 +00:00
vhdl_alt	CPLD: Corrected sampling offset to better centre screen; CPLD version now 0.9	2018-07-15 15:31:51 +01:00
vhdl_atom	Atom CPLD: Added two cycles of skew to PSYNC	2019-03-09 10:15:08 +00:00
.gitignore	Atom CPLD: Initial version for home-etched prototype	2018-11-22 14:52:12 +00:00
LICENSE	Added GPLv3 LICENSE and README	2018-12-02 12:59:43 +00:00
README.md	Added GPLv3 LICENSE and README	2018-12-02 12:59:43 +00:00

README.md

RGBtoHDMI

The RGBtoHDMI interface converts the "digital" RGB video signal from the BBC Micro or Electron to HDMI compatible with most modern TV/Monitors. The interface comprises a Raspberry Pi Zero and a specially designed Hat containing a small CPLD. Custom firmware on the Raspberry Pi, in conjunction with the CPLD, is able to correctly sample each of the Beeb's video modes to give a pixel-perfect rendition.

For more information, see the project Wiki.