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fc-rfcal-txcheck: check and report ramp tolerance
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 20 Dec 2021 04:22:19 +0000
parents 8e26cb57c7f8
children
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1 The Test System Interface Daemon (TSID) will provide a connection-oriented
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2 (SOCK_STREAM) UNIX domain local socket at /tmp/fc_rftest_socket, and will speak
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3 an ASCII line-based command-response protocol on this socket. All command and
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4 response lines will end with \n only (no \r), and each TSID response including
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5 the initial greeting on connection establishment will begin with a '+' or '-'
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6 character to indicate OK or error, respectively, like in POP3.
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7
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8 The following commands are currently defined:
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9
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10 vcxo-cal-setup band arfcn
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11
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12 This command is sent to the TSID to prepare the RF test system for the VCXO
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13 calibration procedure. The first argument after the command keyword is the
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14 band to be used (850, 900, 1800 or 1900) and the second argument is the ARFCN
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15 in that band on which the DUT will be transmitting.
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17 freq-meas hint
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19 This command directs the RF test system to take a frequency offset measurement
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20 (vcxo-cal-setup must have been performed previously) and report it back to the
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21 client in the response line. The hint argument after the freq-meas keyword will
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22 be sent by the VCXO calibration program (fc-rfcal-vcxo) to tell the RF test
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23 system what kind of frequency offset measurement is being made, i.e., which step
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24 in the VCXO calibration sequence is being performed; see the fc-rfcal-vcxo
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25 source for the hint keywords.
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27 txpwr-cal-setup band arfcn
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29 This command is sent to the TSID to prepare the RF test system for the Tx power
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30 level calibration procedure. The first argument after the command keyword is
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31 the band to be used (850, 900, 1800 or 1900) and the second argument is the
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32 ARFCN in that band on which the DUT will be transmitting.
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33
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34 txpwr-cal-channel arfcn
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36 This command is used during Tx power level calibration procedures to tell the
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37 RF test system to switch to a different channel.
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38
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39 txpwr-cal-pcl pcl
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41 This command is used during Tx power level calibration procedures to tell the
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42 RF test system which PCL is being tested - it allows the RF test system to
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43 prepare for the expected power level and select the right template for ramp
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44 tolerance checking.
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46 power-meas
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48 This command directs the RF test system to take a power level measurement
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49 (txpwr-cal-setup must have been performed previously) and report it back to the
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50 client in the response line.
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52 power-meas ramp
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54 This command is the same as more basic power-meas, but it tells the TSID that
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55 the client is interested not only in the power level measurement, but also needs
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56 the RF test system to evaluate the ramp put out by the DUT, according to the PCL
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57 template selected earlier with txpwr-cal-pcl. The response consists of the dBm
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58 power measurement and a ramp status keyword, separated by white space.
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60 A given TSID implementation may ignore the ramp keyword after power-meas and
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61 always return both values, if the actual RF test instrument always returns both
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62 on the same query.
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63
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64 signal-gen-setup band
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65
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66 This command is sent to the TSID to prepare the RF test system for tests in
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67 which the latter acts as a signal generator. The argument after the command
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68 keyword is the band number (850, 900, 1800 or 1900), and it selects the
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69 downlink frequency band in which the signal generator will need to operate.
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70
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71 signal-gen-sine arfcn offset level
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72
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73 This command directs the RF test system to turn on its signal generator and put
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74 out a pure sine wave at the frequency corresponding to the specified ARFCN (in
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75 the downlink band previously selected with signal-gen-setup) plus the specified
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76 offset in kHz (-67 or +67 with TI's Rx path calibration procedures), and at the
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77 specified Tx power level in dBm.
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79 signal-gen-off
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81 Turn off the signal generator.