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Re: Serial Port Bug?



On 11/27/07, Joe Grace <joe w1sk com> wrote:
> I wonder if using a USB to serial adapter would work well in linux. It
> worked well when I was a mac user. I wanted to experiment with using
> fldigi, but my laptop only has USB which is common for new machines.
> It seems like serial ports are going bye bye.

I've used some of them and they worked for me and my FC6 without any
special driver.

Cheers

>
>
> Joe Grace, AKA W1SK
>
> On 11/27/07, Karl Larsen <k5di zianet com> wrote:
> >     I have a software I like to use called gmfsk which uses the serial
> > port to turn on and off the transmitter in my radio. It worked fine on
> > my old computer. Now when I try to run gmfsk it puts up an error panel
> > that says "Not a serial or parallel port". This made me think the new
> > computer which has a serial port that is not working.
> >
> >     With a volt meter I find some pins have a constant -10.7 volts on
> > them which is the standard RS-232 for a no-data signal. In this static
> > measure the voltmeter sees no positive volts near +12 volts.
> >
> >     Wanting a way to test the serial port I recalled minicom and after
> > getting it set up on /dev/ttyS0 it seems happy with Com 1. The old
> > /dev/modem is gone on F7. But now what is a way to drive the serial port
> > pins to a constant plus voltage with minicom?
> >
> >     I have a scope that I can use if there are no way to make a constant
> > positive voltage. My fear is that the serial port is broken and can't
> > make a positive voltage.
> >
> >
> >
> > --
> >
> >         Karl F. Larsen, AKA K5DI
> >         Linux User
> >         #450462   http://counter.li.org.
> >
> > --
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> > fedora-list redhat com
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> >
>
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