On Fri, Oct 16, 2009 at 01:57:32AM +0000, 임충권 wrote: > Hello > > I want to make a device that communicates with davinci through VLYNQ > but I don't really know how VLYNQ works, specially how the link is > stablished. > > SPRUE36.pdf seems to have an incomplete VLYNQ protocol specification.
In sprue36a.pdf §2.6 they say Since VLYNQ devices can be controlled solely over the serial interface (that is, no local CPU exists), an automatic reliable initialization sequence (without user configuration) establishes a connection between two VLYNQ devices, just after a VLYNQ module is enabled and auto-negotiation occurs. Thus once you set up the vlynq registers, it will automatically set up the link with the other device. As far as I know, the low-level details of vlynq are not available. If you plan to develop a custom device then you have either to use a device from TI with a vlynq port or to buy an ip core from Xilinx to add the vlynq port to an fpga. Ottavio _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
