I am not 100% sure the parity and stop bits stuff, it seems my pl2303 doesn't understand all of them.
From the commit log:
Add uart parameters configuration.
Checkout these commands:
- uart-baud baudrate
- uart-data databits
- uart-stop stopbits
- uart-parity parity (which is none, odd or even; space/mark not supported)
After making changes, write the config (cw or config-write) then restart
(reset command) to activate the changes.