Re: [oopic] Trouble with PC communicating with OOPIC-R

Larry M. Leitch wrote:
>
> ooPIC Tech Support wrote:
> >
> > What ooPIC are you using? If it is an ooPIC R or ooPIC C board then you
> > can use straight through DB9 cables. If you are using an ooPIC S board
> > then you will need the RS232 level converter in there to communicate
> > with the serial port to the PC.
> >
> > DLC
> >
> > Larry M. Leitch wrote:
> > > Hi Folks,
> > >
> > > I keep getting the "Cable Not Found" message when I try to connect to
> > > the OOPIC to program it.
> > >
> > > Do I need a Null-Modem? I think the answer is NO.
> > >
> > > Do I need an RS-232 to TTL Converter? I think the answer is YES and I
> > > use one (a UTEK)
> > >
> > > The firmware is C.1.1+. As far as I can tell, the cables are good;
> they
> > > are from Radio Shack and not home made.
> > >
> > > Thanks
> > >
> > > Larry
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> >
> > --
> > ------------------------------------------------------
> > Dennis Clark ooPIC Tech Support
> > www.oopic.com
> > ------------------------------------------------------
> >
> >
>
> The OOPIC is an OOPIC-R and it now works because I removed the
> serial-TTL converter. This setup (with the level converter) used to
> work, although intermittently (I was blaming the OOPIC).
>
> Recently, I had the firmware updated to C.1.1+ AND switched to a new
> USB-Serial converter - changed two things at once and that was a no-no.
>
> The next step would have been to take the OOPIC to work where my PC has
> a regular Comm port. I would have still used the level converter if I
> had not heard from the group.
>
> Thank you very much.
>
> Larry
>
>

Hi All,

Two weeks ago, I was able to communicate with the OOPIC-R via the serial
port and now I can not. I am back to getting the "Cable Not Found"
dialog. I have made no *INTENTIONAL* changes that I know of that would
cause the serial link between the PC and the OOPIC to stop working.

My setup: OOPIC-R and Windows XP running on Toshiba laptop.
I have no printer port and no serial port, only USB.

No serial to TTL level converter.

*NO* null modem cable.

When I do Tools...Cable Configuration...Find Serial Cable, I get the
"Can not find a serial cable connected to an OOPIC" dialog.

disabled LPT1 and COM1, USB shows up as COM3.
device manager shows: USB Serial Port (COM3)
same result.

uninstalled LPT1 and COM1
device manager shows: USB Serial Port (COM3)
same result.

reboot, COM1 and LPT1 reappear. uninstall COM1 and LPT1 drivers again.
Find Serial cable => Found no installed serial ports to check.

rename COM3 to COM1 => same
"Can not find a serial cable connected to an OOPIC" dialog.

Went to a PC with a real serial port (only one) and checked that is was set
to 9600 baud, no parity, and one stop bit. No better luck. One time, I got the message
"sent y and received fhsa(*(*^%$$#$" or something like that. Sometimes received:
"Can not find a serial cable connected to an OOPIC" dialog.

Thank you for all help that you can offer.

Larry Leitch

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