FreeCalypso > hg > fc-rfcal-tools

annotate autocal/gmagicstand.c @ 124:9f09a7c3607a

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fc-rfcal-txband: level error tolerance tightened to 0.75 dB
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 12 Jan 2019 20:15:17 +0000
parents c9bd1f75029f
children
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1 /*
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2 * fc-rfcal-gmagic is a debug utility implementing just one part
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3 * of the fc-rfcal-rxband process in a standalone manner;
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4 * this module contains the main() function for this standalone utlity.
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5 */
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6
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include <rvinterf/l1tm.h>
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12 #include <rvinterf/exitcodes.h>
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13 #include "rxcaldefs.h"
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14 #include "stdband.h"
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15
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16 static struct band {
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17 char *name;
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18 unsigned rfpw_std_band;
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19 unsigned default_arfcn;
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20 } bands[] = {
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21 {"850", RFPW_STD_BAND_850, 189},
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22 {"900", RFPW_STD_BAND_900, 37},
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23 {"1800", RFPW_STD_BAND_1800, 698},
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24 {"1900", RFPW_STD_BAND_1900, 661},
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25 {0, 0, 0}
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26 };
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27 static struct band *selected_band;
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28 static unsigned arfcn;
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29
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30 finish_cmdline(argc, argv)
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31 char **argv;
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32 {
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33 extern int optind;
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34 struct band *band;
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35
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36 if (argc - optind < 1 || argc - optind > 2) {
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37 fprintf(stderr, "usage: %s band [arfcn]\n", argv[0]);
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38 exit(ERROR_USAGE);
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39 }
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40 for (band = bands; band->name; band++)
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41 if (!strcmp(band->name, argv[optind]))
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42 break;
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43 if (!band->name) {
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44 fprintf(stderr, "error: \"%s\" is not a known band\n",
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45 argv[optind]);
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46 exit(ERROR_USAGE);
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47 }
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48 selected_band = band;
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49 if (argv[optind+1])
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50 arfcn = atoi(argv[optind+1]);
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51 else
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52 arfcn = band->default_arfcn;
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53 return(0);
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54 }
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55
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56 prepare_rf_test_system()
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57 {
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58 char cmd[80];
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59
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60 printf("Preparing RF test system for %s MHz Rx calibration\n",
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61 selected_band->name);
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62 sprintf(cmd, "signal-gen-setup %s\n", selected_band->name);
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63 tsid_command(cmd);
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64 return(0);
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65 }
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66
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67 main(argc, argv)
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68 char **argv;
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69 {
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70 int pm, Gmagic;
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71 char Gmagic_db[64];
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72
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73 socket_pathname_options(argc, argv);
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74 finish_cmdline(argc, argv);
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75 connect_rvinterf_socket();
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76 connect_tsid_socket();
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77 setlinebuf(stdout); /* to allow logging with tee */
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78 prepare_rf_test_system();
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79
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80 printf("Putting the DUT into Test Mode\n");
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81 do_tms(1);
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82 do_rfpw(STD_BAND_FLAG, selected_band->rfpw_std_band);
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83 l1tm_setup_for_rxcal();
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84 pm = rx_measure(arfcn);
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85 Gmagic = pm - RXCAL_SIGGEN_LEVEL - RXCAL_AGC_DB * 2;
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86 halfdb_to_string(Gmagic, Gmagic_db);
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87 printf("GMagic=%d (%s dB)\n", Gmagic, Gmagic_db);
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88 exit(0);
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89 }