Identify: Five coupling capacitors are black in colour. Text reads NESRGB, T.W. 2013, 00266A.
Release: October 2013
Hardware Version: 1.0
Software Version: 1.0
Identify: Five coupling capacitors are yellow in colour. Text reads NESRGB, T.W. 2013.
Release: January 2014
Hardware Version: 1.0
Software Version: 1.0 or 1.3
Identify: Text reads NESRGB12, T.W. 2014.
Release: May 2014
Hardware Version: 1.2
1.5 or 1.7
Version 1.0 - Original software. Shipped with first batch and generally works OK on this hardware. Due to different RAM chip used in later hardware this software does not work correctly with anything other than batch #1 hardware.
Version 1.1 - Quick fix for RAM problem in V1.0, had some side effects.
Version 1.3 - RAM bug fixed properly.
Version 1.4 - Fixes a bug which prevents access to mirrors of the PPU palette address range (as seen in intro of Castlevania II English Re-translation). Also allows for a the small SPDT switch to be used for palette selection.
Version 1.5 - Fixes bug which causes random colour in some obscure games (Orb 3D, Morskoy Boy, Duck Maze). Fixes compatibility with Everdrive save states. This version is has more RAM timing issues which causes a few games (Mario 2, Metroid) to have incorrect background colours in some areas.
Version 1.6 - Quick fix for RAM timing issues in V1.5.
Version 1.7 - I spent more time on RAM access logic and it should be solid now.
Version 1.7 FBX Palette - Special build with a different palette #1
To update the software a JTAG programmer is required. I recommend an Altera USB Blaster or clone.
There is an umarked 6 pin JTAG programming connection on the lower left hand side of the board. Pin 1 is encircled.
The Altera USB Blaster requires the Quartus II Progammer Software for Windows to be installed. The download is 185 MB and installation requires 700 MB of hard disk space. The USB Blaster drivers are included in the package (find them in the folder after installation).
Quartus II Progammer Software for Windows - Version 13.1 - working on Windows 7 and XP
26/1/14 - Page Created.
28/1/14 - Corrected part number for original RAM chip. Uploaded original POF file
31/1/14 - The part number for the RAM chip ends in -ZXI, the -ZXC part does not exist. Changed the Altera programming software to ver 13.1 the old version 11.1 SP2 is still available here.
6/2/14 - Added NESRGB POF version 1.3 to the page.
13/3/14 - added v1.4
23/5/14 - added v1.5
25/5/14 - added v1.6
26/5/14 - added v1.7, added info on how to identify the different hardware, and an alternate solution for the latest batch bugs.
15/12/15 - added FBX palette build of v1.7