Yeah, unfortunately PureJavaComm is a bit inconsistent when it comes to
handling these corner cases. One opening sequence that works on Linux
wouldn't necessarily work on Windows or OSX etc. Glad you found a solution.
On Jul 22, 2016 23:02, "oliver.hadasch via ioio-users" <
ioio-users@googlegroups.com> wrote:
> After some more testing I found a solution (or more a work around)
> When I open and close the com port with this code before calling the go
> method
>
> CommPortIdentifier identifier =
> CommPortIdentifier.getPortIdentifier("/dev/IOIO0");
> CommPort commPort = identifier.open(*"*IOIO*"*, 2000);
>
> commPort.close();
>
> it works immediately after boot. But only with firmware 0500.
>
> With firmware 0506 it works only after disconnect / reconnect USB
>
> It looks like if it is the same problem that "Al Linke" described her:
> https://groups.google.com/forum/#!topic/ioio-users/owX8Zqb2Nj0
> He also mentioned that it works only after the second start of the
> application.
>
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