At 3:50 PM -0800 2/25/06, John Pettitt wrote: >I had several goals in mind when I asked the initial question: > >1) a low cost high stability ntp stratum 1 clock board - something that >when added to a sub $100 gps would yield a really stable time source for >ntp. To do this it really needs to let the main cpu read the counters >in a predictable, consistent time which is why I wanted PCI (3v because >I have soekris boxes). > >2) it would also be nic to be able to add a low cost frequency synth to >the design. > > >John
John, Having had some experience in this arena, I'd suggest a PLX PCI interface chip and an older type of Xilinx FPGA such as the Spartan IIE. Both are available in quad flat packages, so you can solder them with a regular iron. They work on 3.3V too. -- --David Forbes, Tucson, AZ http://www.cathodecorner.com/ _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
