Re: [Discuss-gnuradio] USRP digital output hack

[Steven Clark]

Redirecting to list. Has anyone ever sent a gnuradio stream out to a serial port, as Chris suggests? I suspect it is not so easy as he describes...

(incidentally, I'm using cygwin under windows XP. /dev/tty* doesn't exist)

Is there a way to continuously print a gnuradio byte stream to the console?

On 5/8/07, Chris Albertson < address@hidden> wrote:

A serial port "looks" like a file to Python or any other program.
If you can print to the console you can write to a serial port.
I assume you are running on some UNIX-like OS.  Open /dev/ttyS0 and
write bytes to it.  You need to set permissions so the open will work

Echo "Hello World" > /dev/ttyS0
should send a byte stream out to the first serial port on the machine.
You can use "stty" to set the port speed and other parameters.  Se "man
stty" or just "stty --help"



--- Steven Clark <address@hidden> wrote:

> Do you know of any simple way to send a gnuradio stream to a serial
> port? AFAIK, no such "serial port sink" block exists. Serial port
> support isn't even built in to python, you have to go to modules like
> pyserial. Streaming the bits out real time while the demodulator is
> running is key for me.
>
> -Steven
>
> On 5/8/07, Chris Albertson <address@hidden> wrote:
> >
> > Why not simply send the data to a serial port on the PC?
> >
> > --- Steven Clark <address@hidden> wrote:
> >
> > > Hi all-
> > >
> > > I've been desparate lately for a way to stream data from GNURadio
> > > back out
> > > to the hardware world without turning the data into an analog
> signal
> > > via the
> > > USRP's DAC. For example, if I have a software demodulator
> outputting
> > > bits (1
> > > bit per byte,
> > <SNIP>
> >
> > Chris Albertson
> >   Home:   310-376-1029   address@hidden
> >   Office: 310-336-5189  address@hidden
> >
> >
> >
> >
>
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Chris Albertson
  Home:   310-376-1029  address@hidden
  Office: 310-336-5189  address@hidden



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