Synchronous serial Re: E-Mail Formats RE: Future of cctalk/cctech

On Thu, Jun 18, 2020 at 2:42 PM Peter Coghlan via cctalk <cctalk at classiccmp.org> wrote: I'm curious which software package you are using. In the 80s and 90s, I worked for Software Results Corp, and we sold hundreds (small thousands?) of Unibus, Qbus, and VAXBI interfaces and software suites under the name COMBOARD for Bisync and SNA comms from DEC-to-IBM (RSTS, RSX-11, VMS, and UNIX). In my experience, people paid us $10K-$25K per line because they had problems with whatever other solution they were looking at that cost less. I don't know any specific details on where the gaps were, but just that people did experience bugs or missing features that made them come to us. I'd like to hear about what you are encountering once you get to the point of passing bytes. For bisync (3780/HASP) that should be just fine. There's a simple difference in the protocol so that each end can tell who is the master, and AFAIK, any implementation you encounter should be able to be set in the appropriate mode, but you _do_ have to tell each end what their role is or they will chatter endlessly if they both think they are the master. Apologies if you already know this. It's been a long time and I'm not sure who remembers what details about obscure comms from 30-40 years ago. I myself haven't even set up a bisync connection in 25 years. I used to do this stuff every day, then by the mid-90s, it entirely evaporated. -ethan