>
Similar to what Richard said, I use a USB-to-RS232 dongle with my
notebook PC, and the oopic IDE cannot find the serial port
automatically. However, after I set the comport manually, downloads
work ok.
> > 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
> >
>
> First, it is ALWAYS better to tell the IDE where the serial cable is
> located than to have it try to find a cable.
>
> Just because the IDE is trying to talk to the OOPic doesn't mean the
> OOPic is listening. It should listen but if it is executing an
errant
> program, it won't.
>
> So, try the famous 'cosmic wedgie' fix: Power down the OOPic and
> remove the EEPROM. Power up and try to download a known good
program;
> certainly not the one that's in the OOPic now. I have a little
> blinking LED program that I keep in the OOPic when I'm not using it
> for just this reason.
>
> With luck, when you try to download with no EEPROM, the IDE will
pop a
> dialog telling you to reinstall the EEPROM. Do so with the power on
> (don't get it backwards!) and acknowledge the dialog. Everything
> should proceed - with luck...
>
> Now, ALWAYS put OOPic.Delay = 500 as the first executable statement
in
> your programs. This will allow the IDE to get the OOPic's attention
> during the 5 second delay following reset.
>
> You can verify your cable by using Hyperterminal (9600,n,8,1 no flow
> control) and shorting pins 2 & 3 at the end of the cable.
Characters
> typed at the keyboard should echo.
>
> There are USB<->Serial cables that don't like the voltage levels of
> the R-board. The voltage levels do not comply with RS232 signal
> levels but they will work with a PC serial port.
>
> You can test the USB<->OOpic connection in Hyperterminal (set as
> above) by typing \0V (backslash, zero, upper case V). You should
get
> a response of 'v' (lower case v). You can also do this from the
> terminal window of the IDE. Since you are jammed up, I suspect you
> will have to do this test with the EEPROM removed.
>
> Richard
>
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