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From: | mleech |
Subject: | Re: [Discuss-gnuradio] Problems of GPSDO with GPS antenna |
Date: | Mon, 02 Apr 2012 10:04:44 -0400 |
User-agent: | Roundcube Webmail/0.5.1 |
Update to the latest version of UHD and corresponding firmware.
On Mon, 2 Apr 2012 22:37:40 +1000, 魏俊明 wrote:
Hi,
I want to use GPSDO in my application. Since there is no GPS antenna with GPSDO-kit, I bought a 'SMA male straight GPS antenna'. Everything went well before I connect the GPS antenna to the GPSDO. For example, I can receive GPS time using usrp->get_mboard_sensor("gps_time"). Other uhd applications also work well.To lock to the satellite and update the GPS time, I connected the GPS antenna to GPSDO. However, I got some weird errors. I even got the same errors when I run 'uhd_usrp_probe'.~$ uhd_usrp_probelinux; GNU C++ version 4.4.5; Boost_104200; UHD_003.003.000-d5d448e-- Opening a USRP2/N-Series device...-- Current recv frame size: 1472 bytes-- Current send frame size: 1472 bytes-- Found a Jackson Labs GPS..UHD Warning:get_time: bad lexical cast: source type value could not be interpreted as targetUHD Warning:get_time: bad lexical cast: source type value could not be interpreted as targetUHD Warning:get_time: bad lexical cast: source type value could not be interpreted as targetError: ValueError: Timeout after no valid message foundDoes anyone know how to fix it? I am using GPSDO+USRPN210+WBX on Ubuntu 10.04.Thanks in advance.Regards,Jamie
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