Serial console, 3wire protocol

[Hendrik De Vloed <hendrik.devloed%barco.com@localhost>]

Hello, everyone,

I have attached an old VT100-like machine over the serial port for debugging
purposes (Amiga debug.lib).

I'd like to use this terminal in NetBSD as well. I've modified /etc/ttys,
added a gettytab, and am able to see the login prompt, log in, etc...

But I have connected the terminal over a 3-wire link, and every time more
than about 2 lines get sent to it, it displays an "buffer overflow" message.

I've looked in the manpage for gettytab, but it says the
(return/newline/...) delay settings are obsolete. How do I slow down the
output? I'd like to leave the baud rate to 9600/8/N/1, because that's the
Amiga KPrintF setting. I just want to lower how many bytes in a row get sent.

I tried to enable Xon/Xoff on the terminal, but that doesn't make a difference.

Anyone knows the right gettytab parameter to solve this?

Thanks in advance,
Hendrik De Vloed
hendrik.devloed%barco.com@localhost