Drawing too much power might have had something to do with a motor I was running. But I had no problem with the motor using my own arduino code.
The situation with mis-wiring the pot was independent of the comport object freezing my kbd and mouse, though. The kbd and mouse froze when everything was wired up fine (which worked w/ my own arduino code, just not with comport).
It's now mysteriously worked, the last time I tried it, but the wiring was all the same as before. So I have no idea, now that it's not really reproducible...
D
On 16/10/06, nick weldin nick@padarts.idps.co.uk wrote:
If drawing to much power from the usb socket is the problem then you need to provide power for the arduino either by going through a powered hub, or if you are drawing to much power on the arduino to run it off usb switch the power jumper over on the board and provide power for the electronics on it seperately, rather than drawing it from the usb bus.
HTH
Nick
Hi HC,
I've had the problem of the USB bus being killed because to much power was drawn, but it was because I plugged a pot into the wrong ports.
...snip... PD-list@iem.at
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The arduino draws very little power, probably less than 100mA, any
USB bus should power it fine. A short circuit will shutdown any USB
bus. It could shutdown a poorly implemented USB bus forever.
The problem you describe sounds a lot like an intermittent short
circuit to me. It could also be the motor drawing too much current
under certain conditions. If running a motor, I'd run an external
power supply.
.hc
On Oct 16, 2006, at 10:59 PM, David NG McCallum wrote:
Drawing too much power might have had something to do with a motor I was running. But I had no problem with the motor using my own arduino code.
The situation with mis-wiring the pot was independent of the comport object freezing my kbd and mouse, though. The kbd and mouse froze when everything was wired up fine (which worked w/ my own arduino code, just not with comport).
It's now mysteriously worked, the last time I tried it, but the wiring was all the same as before. So I have no idea, now that it's not really reproducible...
D
On 16/10/06, nick weldin nick@padarts.idps.co.uk wrote:
If drawing to much power from the usb socket is the problem then you need to provide power for the arduino either by going through a powered hub, or if you are drawing to much power on the arduino to run it off usb switch the power jumper over on the board and provide power for the electronics on it seperately, rather than drawing it from the usb bus.
HTH
Nick
Hi HC,
I've had the problem of the USB bus being killed because to much
power
was drawn, but it was because I plugged a pot into the wrong ports.
...snip... PD-list@iem.at
PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/ listinfo/pd-list
-- __ _ _ _ __ _ http://sintheta.org
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Man has survived hitherto because he was too ignorant to know how to
realize his wishes. Now that he can realize them, he must either
change them, or perish. -William Carlos Williams
I think I made the mistake of mentioning several setups in the same e-mail.
What I should say is that when *nothing* is plugged into the arduino, I still get the lockup.
Curiously enough, it freezes when I select the "cu.usbserial-XXX" devicename (the one that the arduino software itself uses), but not when I select "tty.usbserial-XXX".
I assume this has something to do with the problem...
Thanks for the suggestions!
D
On 18/10/06, Hans-Christoph Steiner hans@eds.org wrote:
The arduino draws very little power, probably less than 100mA, any USB bus should power it fine. A short circuit will shutdown any USB bus. It could shutdown a poorly implemented USB bus forever.
The problem you describe sounds a lot like an intermittent short circuit to me. It could also be the motor drawing too much current under certain conditions. If running a motor, I'd run an external power supply.
.hc
On Oct 16, 2006, at 10:59 PM, David NG McCallum wrote:
Drawing too much power might have had something to do with a motor I was running. But I had no problem with the motor using my own arduino code.
The situation with mis-wiring the pot was independent of the comport object freezing my kbd and mouse, though. The kbd and mouse froze when everything was wired up fine (which worked w/ my own arduino code, just not with comport).
It's now mysteriously worked, the last time I tried it, but the wiring was all the same as before. So I have no idea, now that it's not really reproducible...
D
On 16/10/06, nick weldin nick@padarts.idps.co.uk wrote:
If drawing to much power from the usb socket is the problem then you need to provide power for the arduino either by going through a powered hub, or if you are drawing to much power on the arduino to run it off usb switch the power jumper over on the board and provide power for the electronics on it seperately, rather than drawing it from the usb bus.
HTH
Nick
Hi HC,
I've had the problem of the USB bus being killed because to much
power
was drawn, but it was because I plugged a pot into the wrong ports.
...snip... PD-list@iem.at
PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/ listinfo/pd-list
-- __ _ _ _ __ _ http://sintheta.org
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Man has survived hitherto because he was too ignorant to know how to realize his wishes. Now that he can realize them, he must either change them, or perish. -William Carlos Williams
That sounds more like a driver bug then. Try updating the driver:
A short circuit in the board itself is possible, so it'd been worth
inspecting the board. But if it only happens with the /dev/cu.*
devices, its most likely a driver bug. The "cu" interface is old and
deprecated anyway.
.hc
On Oct 18, 2006, at 11:14 AM, David NG McCallum wrote:
I think I made the mistake of mentioning several setups in the same
e-mail.What I should say is that when *nothing* is plugged into the arduino, I still get the lockup.
Curiously enough, it freezes when I select the "cu.usbserial-XXX" devicename (the one that the arduino software itself uses), but not when I select "tty.usbserial-XXX".
I assume this has something to do with the problem...
Thanks for the suggestions!
D
On 18/10/06, Hans-Christoph Steiner hans@eds.org wrote:
The arduino draws very little power, probably less than 100mA, any USB bus should power it fine. A short circuit will shutdown any USB bus. It could shutdown a poorly implemented USB bus forever.
The problem you describe sounds a lot like an intermittent short circuit to me. It could also be the motor drawing too much current under certain conditions. If running a motor, I'd run an external power supply.
.hc
On Oct 16, 2006, at 10:59 PM, David NG McCallum wrote:
Drawing too much power might have had something to do with a
motor I
was running. But I had no problem with the motor using my own
arduino
code.
The situation with mis-wiring the pot was independent of the
comport
object freezing my kbd and mouse, though. The kbd and mouse
froze when
everything was wired up fine (which worked w/ my own arduino code, just not with comport).
It's now mysteriously worked, the last time I tried it, but the
wiring
was all the same as before. So I have no idea, now that it's not really reproducible...
D
On 16/10/06, nick weldin nick@padarts.idps.co.uk wrote:
If drawing to much power from the usb socket is the problem
then you
need to provide power for the arduino either by going through a powered hub, or if you are drawing to much power on the arduino to run it off usb switch the power jumper over on the board and
provide
power for the electronics on it seperately, rather than drawing it from the usb bus.
HTH
Nick
Hi HC,
I've had the problem of the USB bus being killed because to much
power
was drawn, but it was because I plugged a pot into the wrong
ports.
...snip... PD-list@iem.at
PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/ listinfo/pd-list
-- __ _ _ _ __ _ http://sintheta.org
PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/ listinfo/pd-list
Man has survived hitherto because he was too ignorant to know how to realize his wishes. Now that he can realize them, he must either change them, or perish. -William Carlos Williams
-- __ _ _ _ __ _ http://sintheta.org
¡El pueblo unido jamás será vencido!
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David NG McCallum -
Hans-Christoph Steiner