pablo alvarez wrote: > Hi, > > Perhaps the most apropiate solution for the time-nuts world is to use > an standard development kit and add a custom mezzanine with the extra > required logic. > > Unfortunately the one I have in my lab is based on a Virtex5 fpga > which is rather expensive, but one can find excelent solutions for > 200$ > For example: > http://www.xilinx.com/products/devkits/HW-SPAR3AN-SK-UNI-G.htm > > The mezaninne card would contain SMA connectors, an array of ECL > registers and the PLL that should generate the reference frequency. > > In the FPGA we will just do the PLL control, counting and external > world interface (probably the simplest is to go for the good old > rs232). > In principle I will do all the code in VHDL so you will not have any > problem in porting it to any device. > > Cheers > > pablo > > Pablo
At least a couple of us have the Spartan 3E board. Digilent also have some inexpensive boards that should suffice. Bruce _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
