Honored Contributor
Honored ContributorHi all,
after 2 months i again returned to solving problem how to very quickly transfer data from fpga design to pc and again consider gigabit ethernet. I made some experiments and measurements of 10/100Mb ethernet chip, so i found that when i use LAN91C111 with NIOS2 i achieved about 60Mbps speed, but when i use MAC inside FPGA Igor Mac and have NIOS2 on 60MHz with PHY DP83848 and uClinux i achieved only 7Mbps. My collegue use NIOS2 on 100MHz and use only C "driver" without uClinux driver achived 14Mbps. But it is still slowly. Do you know if exist some design, which use NIOS2 only for configurating the external PHY and some fast hw., which can use the speed of PHY ... 100Mbps or 1000Mbps ? Or do you think that is better to use something like this kit http://www.terasic.com.tw/cgi-bin/page/archive.pl?language=english&categoryno=167&no=816 and use ARM processor inside FPGA ? Thank you very much for your answer.
