Guys I'm about to place a board production order for a MSX - VDP S100 video board. This is a video board that is constructed to allow one to utilize some of the Z80 software for the MSX computers from way back. Please see here for a brief introduction and some early history. http://s100computers.com/My%20System%20Pages/VDP%20Video%20Board/VDP%20Board .htm The project itself has a long and convoluted history with some of us. Initially proposed by Andrew and others probably over two years ago, there were a number of "challenges" actually getting VGA style video outputs. In the end it became clear that the most practical way to get VGA style video from the Yamaha V9938 was to use an external RGB to VGA converter box/board. These are still fairly common and easy to interface. The board uses the same video and sound chips/ports as those used in the original MSX computers. Interestingly there are still people that program (games) for these systems. See for example:- http://www.msx.org/forum/msx-talk/software/software-s-100-bus-computer-using -msx-video-hardware#comment-230437 That said, this board is in dire need of programming support. Only two rudimentary test routines are supplied by me with the hardware and are on the above web page. I would like to acknowledge the big help of Leon Byles (Australia) and Neil Breeden is figuring out the final circuits for this board and helping with the (3) prototype boards. Also of course Andrew in doing the early prototype KiCAD drawings. I am attaching a picture of the final KiCAD layout drawing. (This BTW is my second complete KiCAD board -- finally gotten the hang of the software! ) The .exe Freerouter converged to a final layout in 1 hour! Anyway as I said , I'm going to order 3 boards for myself, and while this is a very specialized board and probably not of general use, I'm open to adding others to the order list. In all probability this will be a onetime order event. Will have the board done by PCBCart running probably somewhere in the high $ teens/board . John
Attachment:
Picture of KiCAD Board.pdf
Description: Adobe PDF document