Hi Terry,
One last idea. It used to be you'd build an MP3 player from an MCU and
a $7 MP3-decoder chip. The Pi Zero could replace the former and should
be up to flinging SPI data to more than one of them.
http://www.vlsi.fi/en/products/vs1011.html
http://fun4diy.com/CCS_MP3.htm
On Thursday, 5 January 2017 12:17:05 GMT Ralph Corderoy wrote:
> > I ran lsusb on the hub Terry tried and it does show up as single-TT,
> > although it does show up as 4 hubs.
>
> I filtered out some of its more interesting lines to try and lessen the
> noise, giving http://pastebin.com/GSu1Cb8A
Hi Terry,
> I'm leaning towards the multi-core effect as being the reason that the
> bigger Pis work.
Quite possibly. Andrew's good idea of two Pis with their UARTs
connected so you've a serial console might actually give useful
information when it freezes rather than all this guesswork.
>
On Thursday, 5 January 2017 12:17:05 GMT Ralph Corderoy wrote:
> > I ran lsusb on the hub Terry tried and it does show up as single-TT,
> > although it does show up as 4 hubs.
>
> I filtered out some of its more interesting lines to try and lessen the
> noise, giving http://pastebin.com/GSu1Cb8A
Hi David,
> I ran lsusb on the hub Terry tried and it does show up as single-TT,
> although it does show up as 4 hubs.
I filtered out some of its more interesting lines to try and lessen the
noise, giving http://pastebin.com/GSu1Cb8A
That says "bDeviceProtocol 2 TT per port" a couple of times so
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