gnupic: Thread: Re: [gnupic] Interfacing with linux over rs-232

On 7/25/06, Iain Duncan ####@####.#### wrote:
> Wondering if anyone can point me to any decent tutorials or examples,
> especially with 18fs. Specifically I'm not sure what to do on the PC end
> for debugging as all the examples I'm finding use windows apps or
> hyperterminal.
>
> Thanks
> iain
>

I usually use PySerial (pyserial.sourceforge.net) for serial
interfacing software.  It's really easy to write a program to talk to
the serial port.  I'll post an example if you'd like.

For simple debugging you can find a terminal emulator or just read and
write the serial port device file:  Open two xterms.  In one xterm,
run "cat < /dev/ttyS0" and in the other run "cat > /dev/ttyS0".  The
first terminal will show serial output, and the second one will take
input from the keyboard and send it to the serial port.  Default speed
is 9600 baud on the computers I've worked with.

Regards,
Mark
markrages@gmail
-- 
You think that it is a secret, but it never has been one.
  - fortune cookie

> I usually use PySerial (pyserial.sourceforge.net) for serial
> interfacing software.  It's really easy to write a program to talk to
> the serial port.  I'll post an example if you'd like.
> 
> For simple debugging you can find a terminal emulator or just read and
> write the serial port device file:  Open two xterms.  In one xterm,
> run "cat < /dev/ttyS0" and in the other run "cat > /dev/ttyS0".  The
> first terminal will show serial output, and the second one will take
> input from the keyboard and send it to the serial port.  Default speed
> is 9600 baud on the computers I've worked with.

Thanks Mark, I'd love to see an example.

Iain

This sounds more convoluted than need be. The typical Linux comes
with minicom. It is less than glamorous but rock solid. For X windows
you can get the source code for seyon and build locally. Both programs
support terminal configuration and various data transfer functions.

George

On Tue, 2006-07-25 at 22:47 -0700, Iain Duncan wrote:

> > I usually use PySerial (pyserial.sourceforge.net) for serial
> > interfacing software.  It's really easy to write a program to talk to
> > the serial port.  I'll post an example if you'd like.
> > 
> > For simple debugging you can find a terminal emulator or just read and
> > write the serial port device file:  Open two xterms.  In one xterm,
> > run "cat < /dev/ttyS0" and in the other run "cat > /dev/ttyS0".  The
> > first terminal will show serial output, and the second one will take
> > input from the keyboard and send it to the serial port.  Default speed
> > is 9600 baud on the computers I've worked with.
> 
> Thanks Mark, I'd love to see an example.
> 
> Iain
> 
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According to "George M. Gallant, Jr." ####@####.####
> 
> This sounds more convoluted than need be. The typical Linux comes
> with minicom. It is less than glamorous but rock solid. For X windows
> you can get the source code for seyon and build locally. Both programs
> support terminal configuration and various data transfer functions.

What about kermit?

   http://www.kermit-project.org

Regards,

web...

--
William Bulley                     Email: ####@####.####

George M. Gallant, Jr. wrote:
> This sounds more convoluted than need be. The typical Linux comes
> with minicom. It is less than glamorous but rock solid. For X windows
> you can get the source code for seyon and build locally. Both programs
> support terminal configuration and various data transfer functions.
> 
> George

How should this be configured for experimenting with serial pic
communication?

Thanks
Iain

Hi,

I also use a simple terminal to debug the USB parts of the PUF
bootloader (currently dedicated to 18F4550 family).
You can set up your serial link using stty as in the following example :

stty 115200 -cstopb cs8 < /dev/ttyS0
cat /dev/ttyS0


But for application purposes, I prefer to use a USB link. It is more
reliable, faster, and does not use extra pins.
I still did not release this USB console code, but it is useable, and
available in the CVS database. You can have a look at
http://vasco.gforge.enseeiht.fr.

Pierre

Iain Duncan a écrit :
> Wondering if anyone can point me to any decent tutorials or examples,
> especially with 18fs. Specifically I'm not sure what to do on the PC end
> for debugging as all the examples I'm finding use windows apps or
> hyperterminal.
>
> Thanks
> iain
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: ####@####.####
> For additional commands, e-mail: ####@####.####
>
>
>
>   

Hi,

I am having trouble of accessing your site. Can you check the URL, please?

Thanks
Tamas



On 26/07/06, Pierre GAUFILLET ####@####.#### wrote:
>
> Hi,
>
> I also use a simple terminal to debug the USB parts of the PUF
> bootloader (currently dedicated to 18F4550 family).
> You can set up your serial link using stty as in the following example :
>
> stty 115200 -cstopb cs8 < /dev/ttyS0
> cat /dev/ttyS0
>
>
> But for application purposes, I prefer to use a USB link. It is more
> reliable, faster, and does not use extra pins.
> I still did not release this USB console code, but it is useable, and
> available in the CVS database. You can have a look at
> http://vasco.gforge.enseeiht.fr.
>
> Pierre
>
> Iain Duncan a écrit :
> > Wondering if anyone can point me to any decent tutorials or examples,
> > especially with 18fs. Specifically I'm not sure what to do on the PC end
> > for debugging as all the examples I'm finding use windows apps or
> > hyperterminal.
> >
> > Thanks
> > iain
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: ####@####.####
> > For additional commands, e-mail: ####@####.####
> >
> >
> >
> >
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: ####@####.####
> For additional commands, e-mail: ####@####.####
>
>

Iain,

Seyon creates a directory ~/.seyon which contains your configuration
files. You can accept
the defaults and change them at run time or adjust them for your
particular setup I typically
just set the baud rate to 38400 and leave everything else alone. Minicom
has similiar
options but requires you to be root to save the default configuration.

George


On Wed, 2006-07-26 at 02:21 -0700, Iain Duncan wrote:

> 
> George M. Gallant, Jr. wrote:
> > This sounds more convoluted than need be. The typical Linux comes
> > with minicom. It is less than glamorous but rock solid. For X windows
> > you can get the source code for seyon and build locally. Both programs
> > support terminal configuration and various data transfer functions.
> > 
> > George
> 
> How should this be configured for experimenting with serial pic
> communication?
> 
> Thanks
> Iain
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: ####@####.####
> For additional commands, e-mail: ####@####.####
> 

On 7/25/06, George M. Gallant, Jr. ####@####.#### wrote:
> This sounds more convoluted than need be. The typical Linux comes
> with minicom. It is less than glamorous but rock solid. For X windows
> you can get the source code for seyon and build locally. Both programs
> support terminal configuration and various data transfer functions.
>

I think it is helpful to understand how to read/write the device
files.  It makes it trivial to arrange a series of shell scripts to
control the hardware if need be.

Here's a Python program that reads from the serial port and prints to stdout:
import serial,sys
s=serial.serial(baudrate=9600) # defaults to first serial port

while 1:
   c=s.read(1)
   sys.stdout.write(c)
   sys.stdout.flush()

Regards,
Mark
markrages@gmail
-- 
You think that it is a secret, but it never has been one.
  - fortune cookie

The URL is ok, but the ENSEEIHT boxes have been shut down for the whole
day.  :-(
You will have to try again tomorrow...

Tamas Rudnai a écrit :
> Hi,
>
> I am having trouble of accessing your site. Can you check the URL,
> please?
>
> Thanks
> Tamas
>
>
>
> On 26/07/06, Pierre GAUFILLET ####@####.#### wrote:
>>
>> Hi,
>>
>> I also use a simple terminal to debug the USB parts of the PUF
>> bootloader (currently dedicated to 18F4550 family).
>> You can set up your serial link using stty as in the following example :
>>
>> stty 115200 -cstopb cs8 < /dev/ttyS0
>> cat /dev/ttyS0
>>
>>
>> But for application purposes, I prefer to use a USB link. It is more
>> reliable, faster, and does not use extra pins.
>> I still did not release this USB console code, but it is useable, and
>> available in the CVS database. You can have a look at
>> http://vasco.gforge.enseeiht.fr.
>>
>> Pierre
>>
>> Iain Duncan a écrit :
>> > Wondering if anyone can point me to any decent tutorials or examples,
>> > especially with 18fs. Specifically I'm not sure what to do on the
>> PC end
>> > for debugging as all the examples I'm finding use windows apps or
>> > hyperterminal.
>> >
>> > Thanks
>> > iain
>> >