Re: [tracker2] OTUSB Can't Connect Via Serial
- Ok, glad you got that fixed.
Yesterday I tested a new 'safe mode' on the OT3m. By jumpering two pins
you can force it to use the default config, and RESET DEFAULT will
overwrite your config.
If I have time today, I'm going to try to do something similar on the
OTUSB. There's a good chance the OTUSB won't have enough space for
another copy of the config, but I can at least force it to ignore some
features when safe mode is enabled - maybe stop profile switching, force
port A to AUTO, and disable KISS and scripting.
On 12/28/2012 8:03 AM, Chris Meyer wrote:
> I was getting an "orange" blink when power was connected (red and green
> leds) no matter whether I had the cable connected or not. I then tested
> my "null modem" cable and this time compared the crossed pins to an
> online reference to find out that it was wired as a null modem for some
> custom device [it's a molded, labeled cable, it's not labelled anymore
> :-) ]. I was then able to connect to it on the first try and now have
> it "recovered'. I've got more questions but I'll start another thread.
> Thanks again,
> On Wed, Dec 26, 2012 at 9:28 PM, Scott Miller <scott@...
> <mailto:scott@...>> wrote:
> Hi Chris,
> So when you're powering it with 12v it gives you a red blink, unless
> you've got the null modem cable connected?
> On 12/26/2012 1:19 PM, waterppk wrote:
> > I was playing around with the OTUSB over USB power and was able to
> > configure it and get it transmitting through my radio, so it was
> > fine. I then decided to reset the tracker to the stock
> configuration by
> > checking "Erase device and load firmware" and attempting to connect
> > through the "otwincfg.exe". I left it plugged in for a while but got
> > "unable to access serial port" immediately. Every subsequent
> attempt to
> > connect via USB has now been unsuccessful, but whenever I click
> > the lights cycle green for a second, then red, then off and the
> > to access serial port comes back up. It then won't cycle lights on a
> > connection attempt until it's unplugged and plugged back in
> again. When
> > powering it with the 12V plug I get a red light momentarily then
> > Powering it via the radio plug and connecting a null modem cable
> to the
> > Data side doesn't get any response at all (no lights, etc). I've
> > attempted checking "disable turbo" as instructed in the manual but it
> > doesn't seem to make a difference with USB or null modem serial
> > connection. I've tried monitoring the serial port for any
> characters on
> > boot and I don't see anything at the handful of baud rates that I've
> > tried but I haven't extensively checked.
> > Any ideas on additional testing or debugging to help solve this? I'd
> > like to get the device reset and working again! I have full
> > tools available including a high speed USB analyzer, 8 channel logic
> > analyzer, oscilloscope, etc if they'd be of any help figuring it out.
> > Thanks,
> > Chris
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