translator board I get both leds lit when I plug in, I know for sure
it worked in the past and I haven't changed anything since then. I
don't have any other programs using the serial prot that I know of.
Since I posted last I've also tried unistalling the IDE and rebooted
a few times for good measure but still nothing.
--- In oopic@yahoogroups.com, ooPIC Tech Support <dennis.clark@...>
wrote:
>
> Now we're getting somewhere. Make sure that your serial connection
is
> correct and that no other serial program has control of the port.
>
> DLC
>
> bb261998 wrote:
> > I had already replaced the regulator with the bigger one prior to
> > this issue after frying the original. I've checked voltage at the
> > regulator, on the 40 pin connection and at the point of the
serial
> > connection and everything looked good at 5v. Even with the EEPROM
> > taken out the IDE still doesn't connect to the board, I get the
same
> > error message. I just tried doing the connection right when I
power
> > it on to attempt to get in during the delay, same story.
> >
> >
> > --- In oopic@yahoogroups.com, "rtstofer" <rstofer@> wrote:
> >
> >> --- In oopic@yahoogroups.com, "bb261998" <bb261998@> wrote:
> >>
> >>> the strange thing is I had everything working the night before;
> >>>
> > went
> >
> >>> to bed; when I got up the next day the problem began. No
changes
> >>>
> > to
> >
> >>> the computer, software or program, or wiring. I changed battery
> >>>
> > also
> >
> >>> before posting the first time. I didn't realize you need to
> >>>
> > connect
> >
> >>> within the delay period though. My fear is I may have
carelessly
> >>> screwed up one of the I/O's that the serial uses while playing
> >>> around late at night.
> >>>
> >>> One other symptom I forgot to mention, when I plug in my
testing
> >>> LEDS and reset the oopic, I/O 1 goes high and all the others
I/O
> >>> stay low. the last program I loaded before all this started did
a
> >>> sort of Knight Rider pattern across the first 8 I/O's so I
> >>>
> > expected
> >
> >>> even if I screwed up the serial I/O (19,23..) that program
would
> >>> still be loaded and running normally which it does not.
> >>>
> >> Check the 5V levels on the board. That tiny little regulator
won't
> >> take much abuse and 8 LEDs at 20 mA each might just be enough to
> >>
> > take
> >
> >> it out. It is only rated for 100 mA! See
> >> http://www.fairchildsemi.com/ds/LM/LM78L05A.pdf
> >>
> >> Dennis recommends replacing it with a regular 7805 in a TO-220
> >> package. I haven't fried mine yet but I will probably stay with
the
> >> TO-92 package,
> >>
> >> It's pretty hard to trash the uC. You can take out a pin without
> >> frying the whole thing.
> >>
> >> Once you verify (and repair) the 5V, remove the EEPROM and try to
> >> download a program. You will get a dialog box telling you to
> >>
> > install
> >
> >> the EEPROM. Do so with the system powered up. Don't get it
> >>
> > backwards!
> >
> >> Acknowledge the dialog and you should be good to go.
> >>
> >> THAT is the reason for always including OOPic.Delay = 500 as the
> >>
> > first
> >
> >> executable statement. It allows the IDE to communicate with the
CPU
> >> during the 5 second delay (following a reset) before the uC goes
off
> >> to never-never-land.
> >>
> >> Richard
> >>
> >>
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
> --
> ------------------------------------------------------
> Dennis Clark ooPIC Tech Support
> www.oopic.com
> ------------------------------------------------------
>
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/oopic/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/oopic/join
(Yahoo! ID required)
<*> To change settings via email:
mailto:oopic-digest@yahoogroups.com
mailto:oopic-fullfeatured@yahoogroups.com
<*> To unsubscribe from this group, send an email to:
oopic-unsubscribe@yahoogroups.com
<*> Your use of Yahoo! Groups is subject to:
No comments:
Post a Comment