https://sourceforge.net/p/com0com/feature-requests/27/Recent changes to 27: Dosbox's NullmodemenFri, 04 Mar 2022 18:12:18 -0000https://sourceforge.net/p/com0com/feature-requests/27/?limit=25#6bb7<div class="markdown_content"><p>It uses the following packets:<br/> 0xFF with the next byte being break(bit 2)/DTR(bit 1)/RTS(bit 0)<br/> That one is sent when the connection is made with the TCP server/client, from both sides, to initialize their respective signals from the modem control and line control registers.<br/> It's also sent when those lines on the senders side change (by updating those registers).<br/> When receiving "0xFF, 0xFF", the other side is literally sending the 0xFF byte. In all other cases, it's a normally sent byte over the TCP connection(from the base I/O port of the UART).</p> <p>The RTS of the packet's sender is connected to CTS, and the DTR to DSR. Break obviously executes the break signal on the sending line.</p></div>superfury1Fri, 04 Mar 2022 18:12:18 -0000https://sourceforge.netfdc257ed2d2ac9328ee13a37135bf6d59c136867https://sourceforge.net/p/com0com/feature-requests/27/<div class="markdown_content"><p>Can Dosbox's Nullmodem (with it's signals) be added as an option to the virtual serial port using TCP?</p></div>superfury1Fri, 04 Mar 2022 18:01:15 -0000https://sourceforge.net73dc8b3e765514dfb705de8f4209451e4d84ed16