Hi,
After the first developments based on the Milkymist One
(https://twitter.com/Milkymist_Labs/status/333568451216031745) it is
time to make better prototypes of the "Mixxeo" digital video mixer. Here
is the chance for you to get one, and make each board more
cost-efficient thanks to the usual volume savings in electronics production.
They are not for everyone - first PCBs often contain a few errors
(though this one is based on the Milkymist One which already has been
validated), and the software + gateware (FPGA design) is not finished
yet. So you'd better not be afraid of board reworking, soldering,
programming and getting your hands dirty.
But if you want to support the open source video mixer effort (your
tests, bugfixes and improvements are welcome), or are looking for a FPGA
board well-supported by the Migen-based milkymist-ng SoC, it can be a
good option for you.
Specs:
* XC6SLX45 in less slow -3 speed grade
* 2 HDMI input ports, maybe 3 if routing allows. The theoretical maximum
resolution is 720p (limited by the Slowtan6 SERDES), getting there will
need some more FPGA design work. Perhaps 1080p30 would work too, but not
1080p60. [*]
* DVI output (analog + digital) from the M1r4 design. The digital part
will need new gateware design.
* Ethernet (same as M1)
* Built-in FT2232H JTAG/UART adapter
* Same flash and DDR SDRAM as the M1
* Power via micro-USB connector. Power supply is not included.
* Larger IO connector from the M1r4 design
* No other M1 peripherals (USB, MIDI, DMX, analog video in, memory card,
etc. are gone)
* Knobs and user interface elements not included (use IO connector)
Here are the nasty details:
* Price depends on how many boards are made and rapidly decreases with
quantity. If too few people order, it can be up to 700 EUR/board
(including VAT).
* Payment in advance.
* The board is sold "as is", with all faults - you'll get the board
straight from the assembly line with minimal testing. Of course, they
should work, but if it were easy it would not be called hardware and you
may end up having to fix some things yourself. Basically, you'd be
sharing some of the risk with me.
* You will get to review the final design files for at least one week
before they go into production.
Please send me an email before May 23 if you are interested!
Sebastien
[*] http://hamsterworks.co.nz/mediawiki/index.php/Spartan_6_1080p is a
remarkable hack for the output, but I don't think it could easily work
for the inputs. Memory bandwidth would become a problem too.
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