Solved how to conigure my usb serial port ?

[ralphbsz]

Read man cu.

At the top, look at -p and -e. It explicitly says: If you set both -p and -e, no parity is used, which is also the default when you set neither.

No flow control is the default; look at the man page for how to set the variable hardwareflowcontrol.

I can't see a way to set 8 bits and 1 stop bit, but that is the default. I haven't seen any device that uses anything other than 8+1 in about 30 years. You could do the following: Set it using stty on the device before starting cu, and then check with stty that it hasn't been changed.

 

[fff2024g]

Not sure why you worry about this if you can login fine. I think the defaults should just work for you. Set baud rate with -s 9600. But if you want, from within cu you can set variables with ~s and view them with ~v. "man cu" for what variables can be set. Alternately use kermit (pkg install it) as it will give you a lot of options + you specify them in a ~/.kermrc
file as follows:
set line /dev/cuaU0
set sp 115200
set carrier-watch off

thanks.

 

[fff2024g]

thanks

Read man cu.

At the top, look at -p and -e. It explicitly says: If you set both -p and -e, no flow control is used, which is also the default when you set neither.

No flow control is the default; look at the man page for how to set the variable hardwareflowcontrol.

I can't see a way to set 8 bits and 1 stop bit, but that is the default. I haven't seen any device that uses anything other than 8+1 in about 30 years. You could do the following: Set it using stty on the device before starting cu, and then check with stty that it hasn't been changed.

 

[fff2024g]

thanks for everyone , i think cu command can't add more parameter directly . but we can set more parameter with ~s when connect serial com port by man cu book. thanks. i will close it.