From c44eeaaf31e55b4a9ce3ce8f85030f42d7d6e44d Mon Sep 17 00:00:00 2001 From: RobertWalstab Date: Mon, 7 Sep 2020 10:13:57 +0200 Subject: doc: add section about network mode on E3xx devices --- host/docs/usrp_e3xx.dox | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/host/docs/usrp_e3xx.dox b/host/docs/usrp_e3xx.dox index feff96c7e..421452fc4 100644 --- a/host/docs/usrp_e3xx.dox +++ b/host/docs/usrp_e3xx.dox @@ -468,6 +468,22 @@ that systemd-networkd might accidentally pick up. Note: Temporarily setting the IP addresses via ifconfig etc will only change the value until the next reboot or reload of the FPGA image. +\subsection e3xx_getting_started_network_mode Network Mode +With UHD 4.0 the RJ-45 port can also be used for streaming samples from the USRP device to the host or other +remote operations such as `uhd_image_loader`. Please note: As the SDR application runs on an embedded CPU +with limited processing capability, users should leverage the FPGA using tools such as RFNoC to offload compute +intensive algorithms that process high bandwidth samples. The maximum sample rates that can be achieved are 4.4 MS/s on +the E31x and 6.4 MS/s on the E320 when streaming through the RJ-45 port. As the E320 has an additional +highspeed SFP Port, the RJ-45 port should only be used for streaming data from the E320 if necessary. + +The streaming sample rates can be tested and verified using the UHD example benchmark_rate: + + /path/to/benchmark_rate --args addr=,master_clock_rate= --rx_rate= + +To verify maximum streaming rates, the following configuration should be used: +- E310: `master_clock_rate=13.2e6`, `rx_rate=4.4e6` +- E320: `master_clock_rate=19.6e6`, `rx_rate=6.4e6` + \subsection e3xx_getting_started_security Security-related settings The E320 ships without a root password set. It is possible to ssh into the -- cgit v1.2.3