Matt McGrath;170712 Wrote: 
> What do you mean by "reprogramming Xilinx", please?

[looks around the room] Me?  I thought you knew.  ;-)

I assume it's the CPLD which is sometimes mentioned.  See here:
http://www.slimdevices.com/photos/inside_squeezebox2/, last photo.  I
believe it contains the SlimDSP - all the codecs.  At any rate, it
appears to be the chip after the CPU but before the DAC, which does a
good portion of the audio decoding and processing.

CPLD stands for "complex programmable logic device" - I would assume it
contains the SlimDSP which can be rewritten by changing the firmware. 
Which is why the SB2/SBv3/Transporter is so flexible, there's no
hard-wired codec chip, it can be reprogrammed.  Unlike the SB1 and
SliMP3.

> I googled it and it seems to be a chip manufacturer - is it the chip
> which sits in the squeezebox and does the digital signal processing?

Yeah, let's go with that.  ;-)

> And so this is something separate from the reset achieved by repluging
> in the power whilst holding down the + button which is mentioned in the
> user handbook?

I would assume the Xilinx gets reprogrammed with a reset as well, but
the advantage of reprogramming the Xilinx only is that it clears any
audio aberrations while preserving your networking settings - it's a
pain to re-enter that 63-character WPA passphrase!

If you try it you will literally see "Reprogramming Xilinx" on bootup.


-- 
Mark Lanctot
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