Given up on the dead dosbox.com wiki. Created a new page here: https://github.com/dosbox-staging/dosbox-stag … ki/Serial-Ports If you spot any problems, go ahead and hit the edit button.

Thanks for the reply, but I was hoping to update the Dosbox wiki rather than the Vogons one. Looking more closely now, sadly the Dosbox wiki does not appear to be active. Zero page edits in the last 90 days (the recent changes log doesn't go beyond that). The last time a page was renamed was 2018, …

There are a lot of optional settings that have no explanation on this page: https://www.dosbox.com/wiki/Configuration:SerialPort However, they are explained in the source code comments: https://github.com/dosbox-staging/dosbox-staging/blob/main/src/hardware/serialport/nullmodem.cpp for example: // …

Thanks for the replies. I've now successfully made a "nullmodem server" which DosBOX can connect to and send CTS or DSR signals, which are received and decoded as expected (I ignore everything else), and I can play as Morse code. This proof-of-concept is a success. I had assumed I'd need to use ENet …

Hi I'm new here but often found the information around here amazingly well researched. There are a lot of Morse code related DOS programs that ignore what serial ports are usually used for and just use a couple of serial port pins to receive or send Morse code signals, e.g. just shorting and …