I am trying to communicate between a serial port on a motherboard and a usb ftdi chip.
The ftdi chip is plugged into a windows machine and is assigned the label COM3. I used putty to set the baud rate to 115200, 8 bit, no parity, no flow and 1 stop bit:
The serial port on the motherboard has the standard pinout:
And I have the grounds connected and the rx/tx connections properly swizzled.
I am running ubuntu server 18.04.2 on the machine with the serial port and I am using tio to setup the serial port:
[email protected]:~$ sudo tio --baudrate 115200 --databits 8 --flow none --stopbits 1 --parity none /dev/ttyS0
But all I seem to be able to send/receive is gibberish:
So I have obviously missed something, but I am not sure what. If anyone has any ideas, I would appreciate the help.