On Wed, Oct 26, 2011 at 7:56 AM, Christoph Kuhr <christoph.kuhr@xxxxxx> wrote: > 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 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 > >> 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 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. ... > > 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. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
