Re: [jornada] [newbie] 560 series

Hello,

I will have some free time in two weeks and will then try to get the sound
going.
In fact, the uda1344 is already working and playback is just fine, but the L3
serial bus, which controls the volume etc... is not yet working so we don't
here much out of the speaker.
If someone wants to help out you're very welcome.

kind regards,
Alex

On Thursday 13 July 2006 14:30, Michael Kaye wrote:
> > What kind of processor does the 560 have? If it is anything like the 710
> > that I have, then the advice on
> > http://www.lowlevel.cz/log/pivot/entry.php?id=41 might be useful. It
> > recommends using madplay as it doesn't use the FPU, which keeps processor
> > usage down. Even then, there isn't much you can do while listening to
> > music.
>
> The 560 has the same processor as the 720. In fact, the spec is very
> similar. The display controller is different, and runs at a different
> resolution. But the rest is very similar, apart from the fact that the
> sound uses the uda1341, rather than the uda1344.
>
> Alex Lange mentions that the "1341 != 1344" somewhere else on this
> forum I think, which is the reason sound isn't ready on the 560
> series. I'm not sure just how different they are. The 720 uses an
> SA-1111 "companion chip" to interface with the uda1344; I have found
> it difficult to confirm whether the 560 series has such a chip. If it
> doesn't, that may be another reason that sound support is more
> difficult.
>
> The H3600 IPAQ also seems to have remarkably similar hardware, down to
> the uda1341. And, in fact, the H3600 doesn't have the companion chip.
>
> Anyway, that link you sent seems to have some good advice, and will
> probably come in useful. :-)
>
> > Oggs tend to require a bit more processor (and therefor battery) power.
> > This is certainly noticeable with my Samsung Yepp.
>
> I guess I'll just have to see how it goes. I'd really rather stick to
> Oggs, both for patent reasons, and audio quality reasons. Maybe I'll
> end up optimizing the Ogg decoder. ;-)
>
> > Good luck with getting sound to work.
>
> Thanks, I might need it. ;-)
>
> Michael.
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Received on Thu Jul 13 2006 - 10:49:01 EDT