MoBoStamp pe motherboard troubles

Interact

I have been using my MoBo as a development system for a month or so but today·I am unable to connect to it.
Tried all the usual things like restart, different USB port etc. light comes on.
When I ask the editor to identify, it comes up with:
·
which shows something attached to com 4.
When I plug a penguin into the same cable same USB port it shows up on com 3 (and works).
·
Any ideas?

Post Edited (Interact) : 12/30/2007 7:05:59 PM GMT

Phil Pilgrim (PhiPi)

The "port" that's in used is attached to the serial number of the FTDI chip on the MoBo or on the Penquin, not to the USB connector that it's plugged into. So it could well be that COM4 is in use, even though you're able to connect the same cable successfully to another device. Possible causes include:

1. You have a DEBUG screen open that you forgot to close. This may not even be visible on your desktop, so you will have to use the PBASIC IDE (Run -> Debug) to discover the fact.

2. You used LoadAVR to upload to one of the coprocessors and forgot to close the message window (which is actually just another DEBUG screen).

3. You unplugged the MoBo while COM4 was open. This can usually be cleared up by exiting the program (e.g. PBASIC IDE) that opened the port and restarting.

In the worst case, a reboot will fix the problem, but that should not be necessary.

-Phil

Interact

No I have powered down the computer and mobo off and on many times still no connection.

Interact

I also can't tell if the stamp is working because the last program I loaded only used the debug terminal.

Franklin

you can load a terminal program like hyperterminal and connect to the port the stamp is using. after you disconnect the stamp and restart the computer check to see if any ports are in use.

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- Stephen

Phil Pilgrim (PhiPi)

There is another possibility. If you have a program running on the MoBo that's spewing data to the serial port, Windows will often mistake it for a mouse and set it up as such, which will monopolize the port. Try this:

1. With the MoBo plugged into the USB port, go to the control panel and look to see if there's a mouse installed on COM4.

2. If there is, you can disable it — the mouse, that is, not the COM4 port.

The following may also work and would be a better solution if it does:

1. Reboot your computer without the MoBo plugged in.

2. Go to the control panel and delete any mouse that's connected to COM4, if there is one.

3. Remove the 3.3V/5V jumper from your MoBo and plug it into the USB port.

4. In the control panel's Device Manager, bring up the Advanced options for COM4 and uncheck the box that says "Serial Enumerator". Click "Okay".

5. Unplug the MoBo and reinstall the voltage select jumper.

6. Plug the MoBo back into the USB port and see if it's now visible to the Stamp IDE.

-Phil

Interact

I think that is it.
thanks Phil.
I remember when I powered up the work computer in the morning a window came up for a moment that said it was installing a serial mouse. Thought that was weird, but windows is just a means to an end for me and I don't like digging in too deep.. I'm driving right now and won't be back at work until morning. thanks again.

Post Edited (Interact) : 12/31/2007 8:04:33 PM GMT

Interact

Yes this did fix my problem. Thanks again Phil.