photos from VCF UK

On Mon, 2010-06-21 at 14:25 -0400, Dave McGuire wrote: Ah, yes. ?VCF was its debut. ?I haven't got a page up yet, but you can see Andrew's photo at: http://www.flickr.com/photos/carrierdetect/4718559358/ Basically, it's a 1000K gate Spartan 3 which contains the microcode store (2k x 55) and 8k x 9 of main memory. ?Front panel switches are physical rotaries and pushbuttons; blinkenlights are via a VGA display for now. Right now it fails the microcode startup diagnostics with a main memory parity error, probably due to a race condition somewhere (the memory /used/ to work). Once that's sorted, the next step is to get it executing 360 code. ?Then adding virtual peripherals to the multiplexor and selector channels. Then taking a 2311 DOS/360 image, and booting. ?Simple! Once I get the diagnostic stuff sorted I'll put an image or the VHDL up for anyone that wants to have a go at programming it into one of the Digilent S3 boards, or perhaps porting it to something similar.