pdp11 CPU on S100 board

pdp11 CPU on S100 board? jim s jws at jwsss.com <mailto:cctalk%40classiccmp.org?Subject=Re%3A%20pdp11%20CPU%20on%20S100%20bo ard%3F&In-Reply-To=%3C4DD317BE.4050704%40jwsss.com%3E> Tue May 17 19:50:06 CDT 2011 * Previous message: pdp11 CPU on S100 board? * Next message: pdp11 CPU on S100 board? * Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] ________________________________ I have raised the issue of documentation for the Soviet parts with a fellow who posted here recently who lives in Moscow. He will help with getting documenation translated if it can be had. I passed him three auctions with the parts I believe people here could bid on and obtain. He also looked for some information and sent it to me. [snip] -----REPLY----- Hi Jim! Thanks! I appreciate your enthusiasm for the S-100 PDP-11 CPU board project. I am willing to capture a schematic in KiCAD, layout a PCB, and get some prototype boards for build and test. At S100computers.com and N8VEM home brew computing project we have a substantial library of free/open source S-100 board designs we could reuse and borrow from to reduce technical risk. However we are missing an important part of this project -- someone to the design the board! I know almost nothing about PDP-11 and certainly not enough to design an S-100 CPU board based on one. Nearly any S-100 CPU board is a significant design effort even with the mere 8080 which the S-100 supports almost natively. Were someone to send me a handwritten schematic I could capture it in KiCAD and send it out for review. Hopefully the datasheets can be made available or translated. That would be helpful. Also, a reliable source of the chips would be helpful too. However, I would like for people to have realistic expectations. This project won't happen unless an actual designer steps forward. This is a substantial project and it will require many skilled and able hands. It would also need someone to write and/or modify an existing free/open source PDP-11 operating system to use existing S-100 peripherals. I suspect that is a major task as well for which we have no volunteers. I would like to see this project happen but it is missing key participants to make it work. Thanks and have a nice day! Andrew Lynch