Connection Problem; worked yesterday, dead today.
Olof Jakobsson
Posts: 3
Hi
We are having problems programming our stamp module. It all worked fine yesterday, but this morning the IDE could not find the module and the module itself did not perform the program we programmed it with yesterday (controlling a servo using a potentiometer). The errors we are getting are:
During "Identify": Loopback: Yes all others No
During "Test connection": "Found connected Stamp; Resetting; Possible java module did not respond"
We are using a Desktop with a onboard serial port (we've tried both COM1 and COM2), We've tried three different powersupplies: 12V/14Ah Battery, 5V/1A adaptor and now a 19V/3.42A laptop adaptor.
Worked yesterday with the battery, doesn't work at all today with any powersource. We've tried resetting manually but it does not make a difference.
It's possible one of us switched the poles of the battery once, could this destroy the module?
Best Regards; Olof Jakobsson
We are having problems programming our stamp module. It all worked fine yesterday, but this morning the IDE could not find the module and the module itself did not perform the program we programmed it with yesterday (controlling a servo using a potentiometer). The errors we are getting are:
During "Identify": Loopback: Yes all others No
During "Test connection": "Found connected Stamp; Resetting; Possible java module did not respond"
We are using a Desktop with a onboard serial port (we've tried both COM1 and COM2), We've tried three different powersupplies: 12V/14Ah Battery, 5V/1A adaptor and now a 19V/3.42A laptop adaptor.
Worked yesterday with the battery, doesn't work at all today with any powersource. We've tried resetting manually but it does not make a difference.
It's possible one of us switched the poles of the battery once, could this destroy the module?
Best Regards; Olof Jakobsson
Comments
regards peter
We are running the IDE v2.03 on an AMD 1700 with win2K SP4 installed; If you need any more info please ask.
Best Regards;
Olof Jakobsson
Notice that the javelin pin 24 (Vin) connects directly to the power connector.
If you power the board, does the onboard LED turn on? If·so, the onboard
regulator is probably ok.
Measure Vdd on pin X3.13 (5V from onboard regulator)
Measure Vdd(J) on pin X1.19 (5V from javelin module)
If you don't get 5V at pin X1.19 then the·regulator on the javelin module is defect.
In that case there is one other thing you can try if the onboard regulator still works.
Disconnect the javelin pin 24 from socket U1 and power the javelin with 5V from
the onboard regulator. You can do that by connecting a wire from X3.13 to X1.19
With 5V applied to its pin 21 and nothing connected to its pin 24, the javelin
might work. Try Test connection again. If it fails, other components on the javelin module
are defect as well.
regards peter
merci beaucoup / tack s