[Simh] EXTERNAL: SimH + real terminal

[Hittner, David T (IS)]

You have a flow control problem.

 

Check your terminal and terminal line to see what the flow control is. 

It can be hardware (DTR/DSR) flow control between the real hardware, but
probably also needs to support software (XON/XOFF) between the simulated
VAX and terminal.

 

Dave

 

From: simh-bounces at trailing-edge.com
[mailto:simh-bounces at trailing-edge.com] On Behalf Of Nathan Cutler
Sent: Tuesday, October 19, 2010 11:58 AM
To: simh at trailing-edge.com
Subject: EXTERNAL:[Simh] SimH + real terminal

 

I just got my hands on a "real" text terminal (the kind with the amber
CRT display). It's a CADO Systems C332 (emulates various VT models). 

I connected the terminal to my Linux box's serial port and started a
Linux serial console on it. I have the terminal working flawlessly with
Linux. (I can use "vi" etc. on the Linux box.) 

However, when I take this a step further, and telnet into the SimH/VAX,
a problem appears. When the VAX sends just a few characters of output,
everything is fine. But when it sends a bunch of characters at once
(e.g. when I do $ DIR, or $ TYPE <long file>), I get the first couple
lines OK but then it just breaks up into nonsense. 

Changing the terminal speed and parity settings makes no difference.
(But these have no meaning for a telnet session anyway, right?) 

Thanks in advance for any help in getting to the bottom of this. 

Please note: telnet sessions to the VAX originating from the Linux
console or X session work just fine. This problem *only* occurs when I
(1) log on to the Linux box from the serial terminal and then (2) telnet
to the VAX. 

Any ideas will be greatly appreciated.

Nathan 

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