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RE: [tracker2] Re: Is ther suppose to be a different config program for tracker 2?

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  • scott@opentrac.org
    Well, if you re in a cable building mood, try this - add a resistor between pins 3 and 4 on the tracker side, and make sure JP4 is set to the 5-volt position.
    Message 1 of 6 , Apr 3, 2006
      Well, if you're in a cable building mood, try this - add a resistor between
      pins 3 and 4 on the tracker side, and make sure JP4 is set to the 5-volt
      position. One of the spare 10k resistors might work, or a lower value.

      Scott

      > -----Original Message-----
      > From: tracker2@yahoogroups.com
      > [mailto:tracker2@yahoogroups.com] On Behalf Of kc9gqr
      > Sent: Monday, April 03, 2006 6:20 PM
      > To: tracker2@yahoogroups.com
      > Subject: [tracker2] Re: Is ther suppose to be a different
      > config program for tracker 2?
      >
      > --- I just made a new ccable approx 12" long and still does the same
      > thing...
      >
      > Bradley
      >
      >
      > In tracker2@yahoogroups.com, <scott@...> wrote:
      > >
      > > Ok, something just occurred to me. Can someone with this problem
      > try
      > > replacing R2 with a lower value, like 3k? The only difference in
      > the serial
      > > section of the circuit between the OT1x and T2 is the TXD line.
      > For
      > > whatever reason, it's open drain on the AP64 chip, so it requires
      > a pull-up
      > > to 5 volts. If the cable is too long, that might not be enough of
      > a signal.
      > > I put in 10k there because that's what I used on the SMT
      > prototype, probably
      > > because I've got a bazillion of them on hand and when I forgot it
      > on the
      > > original layout, I soldered in whatever was handy. I didn't look
      > at that
      > > closely when I came up with the new board layout, and 10k does
      > sound too
      > > high. A perfect example of why this is still a 'beta' project!
      > >
      > > Scott
      > >
      > > > -----Original Message-----
      > > > From: tracker2@yahoogroups.com
      > > > [mailto:tracker2@yahoogroups.com] On Behalf Of kc9gqr
      > > > Sent: Monday, April 03, 2006 5:39 PM
      > > > To: tracker2@yahoogroups.com
      > > > Subject: [tracker2] Is ther suppose to be a different config
      > > > program for tracker 2?
      > > >
      > > > i didn't know if that could be my problem.. I have all the
      > updated
      > > > stuff from the web, atleast i think i do
      > > >
      > > >
      > > >
      > > >
      > > >
      > > >
      > > > Yahoo! Groups Links
      > > >
      > > >
      > > >
      > > >
      > > >
      > > >
      > > >
      > > >
      > > >
      > >
      >
      >
      >
      >
      >
      >
      >
      >
      > Yahoo! Groups Links
      >
      >
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      >
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      >
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      >
    • kc9gqr
      you are the man... its working now..... woohoo ... resistor between ... 5-volt ... value. ... same ... problem ... in ... line. ... requires ... enough of ...
      Message 2 of 6 , Apr 3, 2006
        you are the man... its working now..... woohoo
        ---

        In tracker2@yahoogroups.com, <scott@...> wrote:
        >
        > Well, if you're in a cable building mood, try this - add a
        resistor between
        > pins 3 and 4 on the tracker side, and make sure JP4 is set to the
        5-volt
        > position. One of the spare 10k resistors might work, or a lower
        value.
        >
        > Scott
        >
        > > -----Original Message-----
        > > From: tracker2@yahoogroups.com
        > > [mailto:tracker2@yahoogroups.com] On Behalf Of kc9gqr
        > > Sent: Monday, April 03, 2006 6:20 PM
        > > To: tracker2@yahoogroups.com
        > > Subject: [tracker2] Re: Is ther suppose to be a different
        > > config program for tracker 2?
        > >
        > > --- I just made a new ccable approx 12" long and still does the
        same
        > > thing...
        > >
        > > Bradley
        > >
        > >
        > > In tracker2@yahoogroups.com, <scott@> wrote:
        > > >
        > > > Ok, something just occurred to me. Can someone with this
        problem
        > > try
        > > > replacing R2 with a lower value, like 3k? The only difference
        in
        > > the serial
        > > > section of the circuit between the OT1x and T2 is the TXD
        line.
        > > For
        > > > whatever reason, it's open drain on the AP64 chip, so it
        requires
        > > a pull-up
        > > > to 5 volts. If the cable is too long, that might not be
        enough of
        > > a signal.
        > > > I put in 10k there because that's what I used on the SMT
        > > prototype, probably
        > > > because I've got a bazillion of them on hand and when I forgot
        it
        > > on the
        > > > original layout, I soldered in whatever was handy. I didn't
        look
        > > at that
        > > > closely when I came up with the new board layout, and 10k does
        > > sound too
        > > > high. A perfect example of why this is still a 'beta' project!
        > > >
        > > > Scott
        > > >
        > > > > -----Original Message-----
        > > > > From: tracker2@yahoogroups.com
        > > > > [mailto:tracker2@yahoogroups.com] On Behalf Of kc9gqr
        > > > > Sent: Monday, April 03, 2006 5:39 PM
        > > > > To: tracker2@yahoogroups.com
        > > > > Subject: [tracker2] Is ther suppose to be a different config
        > > > > program for tracker 2?
        > > > >
        > > > > i didn't know if that could be my problem.. I have all the
        > > updated
        > > > > stuff from the web, atleast i think i do
        > > > >
        > > > >
        > > > >
        > > > >
        > > > >
        > > > >
        > > > > Yahoo! Groups Links
        > > > >
        > > > >
        > > > >
        > > > >
        > > > >
        > > > >
        > > > >
        > > > >
        > > > >
        > > >
        > >
        > >
        > >
        > >
        > >
        > >
        > >
        > >
        > > Yahoo! Groups Links
        > >
        > >
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        > >
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        >
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