From ddfcc114bfd6d37c182a3279368852f4b96f9ffd Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Thu, 9 Sep 2010 12:35:37 -0700 Subject: usrp2: added some pps docs using the test example app --- host/docs/usrp2.rst | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'host/docs') diff --git a/host/docs/usrp2.rst b/host/docs/usrp2.rst index 0d48209be..745361b77 100644 --- a/host/docs/usrp2.rst +++ b/host/docs/usrp2.rst @@ -213,10 +213,19 @@ Hardware setup notes ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Ref Clock - 10MHz ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -Using an external 10MHz reference clock requires a signal level between +5dBm and +20dBm at 10MHz applied to the Ref Clock SMA port on the front panel. +Using an external 10MHz reference clock requires a signal level between ++5dBm and +20dBm at 10MHz applied to the Ref Clock SMA port on the front panel. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ PPS - Pulse Per Second ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Using a PPS signal for timestamp synchronization requires a 5Vpp square wave signal + +Test the PPS input of the USRP2 with the following app: +:: + + cd /share/uhd/examples + ./test_pps_input --args= + +* are device address arguments (optional if only one USRP is on your machine) -- cgit v1.2.3