26 Oct
2011
26 Oct
'11
5:38 p.m.
On Wed, Oct 26, 2011 at 7:56 AM, Christoph Kuhr <christoph.kuhr(a)web.de> wrote:
That seems pretty interesting, but it could be more streamlined. RISC
is (I think) overkill, but it wouldn't hurt to study it :)
http://opencores.org/project,i2c
Gigabit ethernet has become ubiquitous on new hardware at about the
same time that firewire has become rare... I think mostly we could use
just one interface at a time---but reuse a lot of the code and
hardware.
...
Hi!
great idea!!!!!!!!
im desperatly looking for AVB (IEEE 802.1BA) adc/dac s. this could be THE
solution...
Hi Christoph
I'm unfamiliar with AV bridging--what do you use it for?
1. Modules for dac and adc with on-board
identifiers (mixed-signal
design)
2. A FPGA-based programmable system board with connectors for
respective modules (high-frequency circuit design)
3. FPGA code for buffers, clocks, and device discovery (VHDL/Verilog
programming)
Did you have a look at opencores.org for IPs?
I2C and I2S cores are available at opencores.org 4. Data transport modules (FPGA code plus
hardware design), could be
USB, FW, ETH, PCI, wireless, etc...
Perhapes two transport modules?
like FW and ETH -> AudioVideoBridging? (they share the same codec
implementation: iec61883-x)
if you like to use it with a laptop, use FW. if you have a little
projectstudio with seperated recording/control room situation it would
integrate in an AVB environment.
The DAW would need to have an AVB ready NIC, means PTP HW timestamping
between PHY and MAC.
At the moment im working on a linux implementaion for AVB, perhaps this is
what i could contribute?
my implementation will be jack a application
There is an AVB properitarien IP for FPGA, apparently 25000€.
=> there would be the need for opensource implementation.
so i would like to contribute my AVB stuff if/when i got it working ->
estimated deadline july 2012...
after that i would like to have a look at an open AVB IP for FPGA.
Isn't it crazy how expensive some of the FPGA boards and software IP
becomes? It's like it's own little anti-competitive niche market
*cough* DoD *cough*
While the FPGA's themselves aren't prohibitively expensive, the rapid
development boards+software are.