Do you need to use two serial ports?
 
If you do so, you must have two separate configuration files for each of the serial port.
Both of them can be created by issuing the following command:
 
$ /opt/local/bin/minicom -s
 
If you red my previous article on how to install & configure minicom(1), follow it.
It’s an easy guide. The only differences in both configuration files are:
 - device names
 - name of the config file.
 
I have my first port configuration file saved under default name.
The other configuration file, for my second port, I saved as pl3220.
Both files are located in /opt/local/etc directory.
 
To run minicom(1) on the second port issue:
# /opt/local/bin/minicom configuration pl2330
 
Easy....
Greg’s blog
Sunday, April 15, 2007