Honored Contributor
Honored ContributorHi Cris,
As you said, the packets I sent were 1400 bytes, leading to the data rate of arround 15Mbps. So do you have any suggestion to dump these data from NIOS to FPGA logic cell? I used to use PIO but seems not very promising. Thanks --- Quote Start --- What's your current data rate? You should now have a figure far above 1Mbyte/s without any particular optimization. For performance, remind that every sendto call will send a separate UDP packet which includes some header overhead (42 bytes), so you optimize the speed by increasing the data payload. Ideally the best situation would be calling sendto with such a data length that the full packet lenght is used. For an Ethernet link, the maximum packet size is 1536 bytes, so you can transmit up to 1536-42 bytes of payload at once. If you exceed this quota by a single byte, then a new UDP packet has to be generated, thus adding more 42 bytes. --- Quote End ---
