Serial Port Configuration
Hello all,
I've been working with FreeBSD for a while and I cannot get past a serial port problem.
This is FreeBSD 6.0 Release 2. I have two serial ports on a Dell PowerEdge 6300. They appear to detected correctly.
I have:
/dev/cuad0
/dev/cuad1
/dev/ttyd0
/dev/ttyd1
and their associated lock and init files.
I wish to communicate with a device with the settings 9600,8N1. I thought I had read where this is the default settings for FreeBSD ports. I currently have a null modem cable between 0 and 1. The first step would be sending data out port 0. I have tried both ttyd0 and cuad0 and have had mixed results.
If I issue "more /dev/ttyd0" (or cuad0) and send data via an echo command, the data is received and everything is fine. If I reverse the order, the echo command freezes and nothing happens. If I connect the device that I wish to communicate with, it exhibits the same problem.
I figure my configuration needs to be changed but I'm not sure what to change.
Thanks in advance!
I've been working with FreeBSD for a while and I cannot get past a serial port problem.
This is FreeBSD 6.0 Release 2. I have two serial ports on a Dell PowerEdge 6300. They appear to detected correctly.
I have:
/dev/cuad0
/dev/cuad1
/dev/ttyd0
/dev/ttyd1
and their associated lock and init files.
I wish to communicate with a device with the settings 9600,8N1. I thought I had read where this is the default settings for FreeBSD ports. I currently have a null modem cable between 0 and 1. The first step would be sending data out port 0. I have tried both ttyd0 and cuad0 and have had mixed results.
If I issue "more /dev/ttyd0" (or cuad0) and send data via an echo command, the data is received and everything is fine. If I reverse the order, the echo command freezes and nothing happens. If I connect the device that I wish to communicate with, it exhibits the same problem.
I figure my configuration needs to be changed but I'm not sure what to change.
Thanks in advance!
Configure your ports in /etc/remote. For testing you can use predefined records.
sio0|com1:dv=/dev/cuad0:br
sio1|com2:dv=/dev/cuad1:br
Then try to connect using /usr/bin/tip .
in 1st window# tip com1
in 2nd window# tip com2
Please note that the "tip" will quit on ~. sequence.
sio0|com1:dv=/dev/cuad0:br
sio1|com2:dv=/dev/cuad1:br
Then try to connect using /usr/bin/tip .
in 1st window# tip com1
in 2nd window# tip com2
Please note that the "tip" will quit on ~. sequence.
ASKER
Actually I forgot this was still hanging out there. I did manage to solve the problem some time ago but have forgotten what I did (and didn't fully understand it in the first place).
There is a command that lists the port settings and allows them to be modified. Does anyone remember any commands that resemble this?
There is a command that lists the port settings and allows them to be modified. Does anyone remember any commands that resemble this?
ASKER CERTIFIED SOLUTION
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ASKER
Yeah that was it. If forget the actual changes but this is the utility I used
What happens if you reverse serial cable???