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My arm boards have no GPU but do have a USB to serial adapter built in... Setting it up was as easy as editing inittab to disable the stock ttys and enabling t
by nubinetwork 3y ago
My arm boards have no GPU but do have a USB to serial adapter built in...
Setting it up was as easy as editing inittab to disable the stock ttys and enabling ttyS0. (Systemd is a little more complex, but afaik it's the same except its unit files instead)
- blueflow 3y agoSome things i had to consider with my vt520: - Not all baud rates work reliably, the higher ones cause screen corruption probably due to clock drift - Flow control is required because the terminal is likely not fast enough to keep up with all output. Software flow control (XON/XOFF) can't be used with tmux because tmux is hard-coded to disable it - No support for unicode characters
- nubinetwork 3y agoOut of curiosity, how fast can you go? I think the default for my board is 115200, haven't tried going higher.
- blueflow 3y ago115200 is out of reach for 80ies hardware. I ended up picking 9600 as standard for my retro stuff because that's the highest the IBM PC supports.
- nubinetwork 3y agoMakes sense. Cheers
- SoftTalker 3y ago9600 is what I remember from the terminals at school at that time, they had rooms of them for students, I think they went to a serial multiplexer of some sort in the room, then over ethernet to the host at the "computing center." Or maybe it was serial the whole way?
- JdeBP 3y agoTerminal concentrators, which is what they were called, are hardware that the world has largely forgotten about.
- nubinetwork 3y agoWhen our work was mostly dumb terminals, they would have a db25 to "rj45" adapter, then using a plain cat5 cable to a box called a terminal server (we used xyplex). From the terminal server to the actual server was legit Ethernet, and we would address the terminals as a term-server-ip:port combination.