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NX1000 not working properly with my new PC — Parallax Forums

NX1000 not working properly with my new PC

basicstampedebasicstampede Posts: 214
edited 2006-12-07 20:57 in BASIC Stamp
Hello.· Recently I got a new PC.
One strange thing I've noticed is that while the RS232 is connected to the development board (either NX1000 or BS2p20/40 demo board), the downloaded program does not run.· If I unplug the RS232 cable, and press Reset, then everything works.

The only problem is that I cannot use DEBUG.

Has anyone else experienced similar problems?· What is the fix?

Thanks.

Comments

  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2006-12-07 18:15
    Hello,
    ·
    ·· Are you able to confirm that the ATN or RES line is not toggling?· This would indicate the BASIC Stamp is being reset.

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    Chris Savage
    Parallax Tech Support
  • basicstampedebasicstampede Posts: 214
    edited 2006-12-07 18:20
    I'm not sure how to do that.
    However, the problem only occurs when I'm connected via docking station.· When laptop is directly connected to RS232 cable, then all is fine.

    I think something must be wrong with the docking station.
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2006-12-07 18:34
    A logic probe, logic analyzer or Scope could be used to verify activity on these lines.· Optionally you can try to measure the voltage at the RES pin.

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    Chris Savage
    Parallax Tech Support
  • basicstampedebasicstampede Posts: 214
    edited 2006-12-07 20:39
    Chris,

    I do own a Parallax USB Scope.· But how do I access the ATN line on my NX1000 board?· Where can I easily & safely insert a wire to access ATN pin?

    Thanks.
  • basicstampedebasicstampede Posts: 214
    edited 2006-12-07 20:49
    Chris, now you won't believe this, but just now, EVERYTHING works OK.·

    Not sure what I did...but it is OK...for now.
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2006-12-07 20:57
    Strange…In the future you can simply connect the black lead to ground and then touch the Blue probe to the ATN pin on the Stamp Module.· Same applies for the /RES pin.

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    Chris Savage
    Parallax Tech Support
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