Re: [Milkymist-devel] HDMI/DVI mixer extension for M1 - draft schematics

2012-10-11 Thread toby at tobyz
On 11 Oct 2012, at 08:17, Sébastien Bourdeauducq wrote: > Hmm, is there anything that would *require* HDCP? No, my point is rather that it exists in all sorts of devices that are out there and by-design exists to play havoc. Any experience gained up front of something like the M^3 is good exp

Re: [Milkymist-devel] HDMI/DVI mixer extension for M1 - draft schematics

2012-10-11 Thread Sébastien Bourdeauducq
On 10/11/2012 12:51 AM, toby at tobyz wrote: two HDMI ports There's a licensing fee involved for HDMI. Not for prototyping, and after this stage there will be no "HDMI ports". That said, I think anything that gets first hand experience implementing these kind of ports can only be a good th

Re: [Milkymist-devel] HDMI/DVI mixer extension for M1 - draft schematics

2012-10-10 Thread toby at tobyz
On 10 Oct 2012, at 21:02, Sébastien Bourdeauducq wrote: Great to see. > two HDMI ports There's a licensing fee involved for HDMI. There isn't for DVI, and its the DVI part of HDMI that you'll be implementing anyway? https://en.wikipedia.org/wiki/HDMI#Cost That said, I think anything that get

Re: [Milkymist-devel] HDMI/DVI mixer extension for M1 - draft schematics

2012-10-10 Thread Sébastien Bourdeauducq
On 10/10/2012 10:22 PM, Werner Almesberger wrote: Since it's for the M1 and a rough prototype anyway, why not use MIDI instead of creating your own pot+ADC solution ? Two reasons: it's more compact, and I can also test this "ADC" (the circuit should be simple enough that it will work the first

Re: [Milkymist-devel] HDMI/DVI mixer extension for M1 - draft schematics

2012-10-10 Thread Werner Almesberger
S?bastien Bourdeauducq wrote: > Potentiometers Since it's for the M1 and a rough prototype anyway, why not use MIDI instead of creating your own pot+ADC solution ? - Werner ___ http://lists.milkymist.org/listinfo.cgi/devel-milkymist.org IRC: #milkymist@

[Milkymist-devel] HDMI/DVI mixer extension for M1 - draft schematics

2012-10-10 Thread Sébastien Bourdeauducq
Hi, I've been working on a M1 daughterboard that can turn it into a simple video mixer. It has two HDMI ports, one "crossfade" linear potentiometer, and one "fade to black" knob. Draft schematics are here: http://milkymist.org/vmixext-20121010.pdf Connection with the M1 =