Background logging of /dev/ttyS0 output
 

Hey Guys,

Long story short I'm trying to figure out how to send minicom to the background to have it log the output from /dev/ttyS0 on boot up.

Starting it in rc.local with "&" doesn't seem to work - minicom stops logging. In fact, whenever you send minicom to the backgroup, it seems to stop logging. Works great otherwise.

I've looked into picocom and cu, however I can't seem to get them to correctly output the characters (the device its connected to uses 7 bit ASCII, but an 8 bit data path, I can't figure out how to configure that for cu and picocom).

Any suggestions would be appreciated... detailed suggestions would be excellent. This is my first foray into serial communications...

Relevant info:

CentOS 5.1 Virtual Machine with /dev/ttyS1 on the host connected to a virtual serial port (/dev/ttyS0) on the guest VM.

Connection specific info:

Baud: 1200
Data Bits: 8
Parity: None
Stop bits: 1
Flow control: Xon/Xoff
7 bit ASCII

Thanks!

I will assume what you mean by 7 bit ASCII is that the data is 0-127 decimal and does not include the extended ASCII characters i.e. 128-255. In this case it does not matter that your serial port settings are 8 bit.

You might be able to use the cat command and write the data to a file i.e.
cat /dev/ttyS0 > filename

Hey michaelk,

Thanks for the reply. Yes, that's actually what I ended up using once I got the correct settings with stty.

I probably should have posted that....^_^