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view doc/RF-cal/Test-system-interface @ 196:47d56330609d
fc-cmu200d: skeleton complete, ready to start adding meat
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 24 Apr 2017 02:17:04 +0000 |
parents | bab88077deba |
children |
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The Test System Interface Daemon (TSID) will provide a connection-oriented (SOCK_STREAM) UNIX domain local socket at /tmp/fc_rftest_socket, and will speak an ASCII line-based command-response protocol on this socket. All command and response lines will end with \n only (no \r), and each TSID response including the initial greeting on connection establishment will begin with a '+' or '-' character to indicate OK or error, respectively, like in POP3. The following commands are currently defined: vcxo-cal-setup band arfcn This command is sent to the TSID to prepare the RF test system for the VCXO calibration procedure. The first argument after the command keyword is the band to be used (850, 900, 1800 or 1900) and the second argument is the ARFCN in that band on which the DUT will be transmitting. freq-meas hint This command directs the RF test system to take a frequency offset measurement (vcxo-cal-setup must have been performed previously) and report it back to the client in the response line. The hint argument after the freq-meas keyword will be sent by the VCXO calibration program (fc-rfcal-vcxo) to tell the RF test system what kind of frequency offset measurement is being made, i.e., which step in the VCXO calibration sequence is being performed; the hint keywords remain to be defined. signal-gen-setup band This command is sent to the TSID to prepare the RF test system for tests in which the latter acts as a signal generator. The argument after the command keyword is the band number (850, 900, 1800 or 1900), and it selects the downlink frequency band in which the signal generator will need to operate. signal-gen-sine arfcn offset level This command directs the RF test system to turn on its signal generator and put out a pure sine wave at the frequency corresponding to the specified ARFCN (in the downlink band previously selected with signal-get-setup) plus the specified offset in kHz (-67 or +67 with TI's Rx path calibration procedures), and at the specified Tx power level in dBm. signal-gen-off Turn off the signal generator. The commands for Tx power level calibration remain to be defined.