[PD] Comport can't read serial devices when soundcard is plugged in

Martin Peach martin.peach at sympatico.ca
Sun Jul 10 19:45:40 CEST 2011


I don't think it got through....

Martin

On 2011-07-10 12:28, Pierre Massat wrote:
> On pd-list this morning...?
>
> Pierre
>
> 2011/7/10 Martin Peach <martin.peach at sympatico.ca
> <mailto:martin.peach at sympatico.ca>>
>
>     Well I'm interested, where did you post it to?
>
>     Martin
>
>
>     On 2011-07-10 04:17, Pierre Massat wrote:
>
>         FIXED!!!
>
>         Please read my new post "Got Arduino UNO to work in Linux
>         (Ubuntu)" if
>         you need the fix.
>
>         Pierre
>
>         2011/7/9 Pierre Massat <pimassat at gmail.com
>         <mailto:pimassat at gmail.com> <mailto:pimassat at gmail.com
>         <mailto:pimassat at gmail.com>>>
>
>
>         http://arduino.cc/blog/2011/__02/15/fix-to-uno-and-mega-__2560-linux-serial-problems/
>         <http://arduino.cc/blog/2011/02/15/fix-to-uno-and-mega-2560-linux-serial-problems/>
>
>             I'll try this tomorrow, and i'll let you know if it works.
>
>             Pierre
>
>
>             2011/7/9 Pierre Massat <pimassat at gmail.com
>         <mailto:pimassat at gmail.com> <mailto:pimassat at gmail.com
>         <mailto:pimassat at gmail.com>>>
>
>
>                 I m pretty sure it's not related to the hardware, as it
>         works
>                 perfectly fine in windows. I believe it has to do with the
>                 firmware.
>
>
>                 2011/7/9 Martin Peach <martin.peach at sympatico.ca
>         <mailto:martin.peach at sympatico.ca>
>         <mailto:martin.peach at __sympatico.ca
>         <mailto:martin.peach at sympatico.ca>>>
>
>
>                     If you are plugging and unplugging the arduino it's
>         possible
>                     the OS doesn't detect it properly. I know there were
>         issues
>                     with the FTDI driver not reporting when the device
>         had been
>                     removed, that caused Pd to hang.
>                     As long as your resistors are more than about 1 kOhm it
>                     should be OK.
>                     If you write ones to the input pins they will have
>         internal
>                     pullup resistors enabled, so a switch that connects
>         the pin
>                     to ground when it's on will work.
>                     And the pots should be wired like this:
>
>                     5V
>                     \
>                     /
>                     \<----Pin
>                     /
>                     \
>                     GND
>
>                     Anyway you say it works once it connects, so it's
>         probably
>                     not the hardware, except possibly the cable/connectors.
>
>                     Martin
>
>
>                     On 2011-07-09 12:00, Pierre Massat wrote:
>
>                         It's a laptop.
>                         I don't get random dropouts once it's connected
>         (I used
>                         it for 2 ours in
>                         Pd and it worked fine all the time), but it just
>         doesn't
>                         appear (either
>                         in the Serial port menu of the IDE, or in the device
>                         list that comport
>                         outputs) randomly. Do you think that this could
>         still be
>                         caused by
>                         something sucking up too much current? There's
>         nothing
>                         special connected
>                         to the board : 2 pots, and 8 buttons (wired so that
>                         their rest position
>                         is High).
>
>                         Pierre
>
>
>
>
>
>
>
>
>
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