PDP-11 video, was Re: VSV11 on pdp11

[AJL>] Hi Dave! The next board we're making for the N8VEM project is an ECB "color graphics and sound" peripheral. The goal is MSX BIOS level compatibility. It probably won't be fully compatible with all MSX applications but should allow "well behaved" applications work that use the MSX BIOS. The board will have a TMS9918 for color graphics and AY-3-8910 for sound as per the MSX specification. We are considering some other items as well such as a SP0256-AL2 and/or CT5256A-AL2 depending on how the prototyping goes. So far, we've got three TMS9918 prototypes working. The board has a SRAM modification so no fussy 4116 DRAMs are needed. If you or anyone else is interested in helping develop and/or test a modern ECB TMS9918 board. Unfortunately, I've fallen woefully behind on my prototyping efforts as this week I got fully absorbed into this S-100 front panel board John and I are working on. John's got a prototype and I'm trying to make the PCB board. The schematic is done and the PCB has a layout but the trace routing is proving to be highly problematic. Thanks and have a nice day! Andrew Lynch