[Soekris] Bizarre serial issue (4501)

[Michael Scheliga]

> -----Original Message-----
> From: soekris-tech-bounces at lists.soekris.com 
> [mailto:soekris-tech-bounces at lists.soekris.com] On Behalf Of 
> Jeff Nettleton
> Sent: Monday, July 31, 2006 9:12 AM
> To: Igor Sobrado
> Cc: soekris-tech at lists.soekris.com
> Subject: Re: [Soekris] Bizarre serial issue (4501)
> 
> On 7/31/06, Igor Sobrado <igor at string1.ciencias.uniovi.es> wrote:
> > In message 
> <9569ccb60607310840u6677939enc61dc64686d1f1be at mail.gmail.com>,
>  Jeff Nettleton writes:
> > > Hello,
> > >
> > > I just bought a new 4501, and I cannot seem to make it 
> respond when 
> > > I am connecting to it via serial.  I've got a null-modem 
> cable, and 
> > > I'm using the correct port settings (19200 8-n-1), yet I 
> cannot seem 
> > > to successfully connect to it on Linux or Windows. On Linux, I've 
> > > tried "dmesg | grep ttyS" when I plug it in, but that 
> doesn't show 
> > > any devices being connected.  Is there anything I can do 
> to confirm 
> > > that the serial port on the box is operating correctly?
> >
> > Hi, Jeff.
> >
> > Can you provide a detailed step-by-step description of the 
> way you are 
> > connecting your PC to the net4501?  A device connected to a serial 
> > port on a desktop/laptop will not be shown in the output of 
> dmesg, but 
> > you can expect a line identifying the serial port itself.  
> For example:
> >
> >   ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
> >
> > I would suggest using cu/tip to establish a connection to 
> that device.
> >
> > Cheers,
> > Igor.
> >
> 
> Well I've tried using both HyperTerminal and minicom (in 
> Windows and Linux, respectively) to connect to the device to no avail.


If the linux and windows machines are in the same area, you can
try your null modem cable between the two boxes.  This will 
eliminate the cable as the possible problem and verify that both
com programs on both boxes have been set up properly.