You probably need to modify /etc/ttys to set the appropriate speed for the port. I had to do that to get an ancient ADM/3A working:
https://www.dragonflydigest.com/2020/12/30/25257.html That is a guess on my part; I have never used the hardware you mention. On Mon, Apr 5, 2021 at 5:02 PM [email protected] <[email protected]> wrote: > Why picocom or minicom? Computers, terminals, modems, and printers > were once connected in a system using RS232 serial ports. That use-case is > obsolete and the Ports of minicom and picocom are unmaintained but there is > still a use-case. For example, in a factory, simple controllers, widely > placed, can be wired into a system computer via RS485. > > I would like to use picocom with DragonFly. It is most simple to list the > RS232 with "ls -l /dev/tty*" and "picocom /dev/tty.." something? I tried > several and got "operation not supported" using the root account. > > I have a Asrock QC5000-ITX which has an on-board UART. I also have a > USB-RS232 (CH341). Using these devices on Linux presents no challenge. > > Perhaps one or more settings in rc.d.serial need to be changed. Is there a > document somewhere that would help me understand the BSD details. >
