HP3562A/state_decoder.py

Fri, 11 Jan 2008 18:49:00 +0100

author
David Douard <david.douard@logilab.fr>
date
Fri, 11 Jan 2008 18:49:00 +0100
changeset 20
de60b63b2275
parent 14
07e2cbf140df
permissions
-rw-r--r--

improved hpgl parser : plot strings

14
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1 # -*- coding: utf-8 -*-
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2 """
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3 state_decoder
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4 =============
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5
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6 Module for decoding the internal state of the HP3562A DSA, using the
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7 GPIB command "DSBN" (Dump State BiNary).
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8
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9 This file can be exectued as a python script. Use '-h' for more informations.
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10 """
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11 from HP3562A import format_header, decode_float, decode_string, decode_header
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12
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13 from HP3562A.enum_types import *
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14
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15 HEADER = [("Measurement mode", EMEAS, 'h', 2),
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16 ("Measurement 1", EMTYP, 'h', 2),
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17 ("Measurement 2", EMTYP, 'h', 2),
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18 ("Window type", EWINTYP, 'h', 2),
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19 ("Force/Expon window 1", EFEXPW, 'h', 2),
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20 ("Force/Expon window 2", EFEXPW, 'h', 2),
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21 ("Average type", EAVGTYP, 'h', 2),
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22 ("Overlap percentage", int, 'h', 2),
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23 ("Number of averages", int, 'h', 2),
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24 ("Sweep # of averages", int, 'h', 2),
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25 ("Trigger type", ETRGTYP, 'h', 2),
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26 ("Trigger slope", ETRGSLP, 'h', 2),
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27 ("Preview type", EPRVTYP, 'h', 2),
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28 ("Sample type", ESMPTYP, 'h', 2),
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29 ("Range units chan 1", ERNGUNT, 'h', 2),
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30 ("Range units chan 2", ERNGUNT, 'h', 2),
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31 ("Range type 1", ERNGTYP, 'h', 2),
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32 ("Range type 2", ERNGTYP, 'h', 2),
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33 ("Input coupling 1", EINCPL, 'h', 2),
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34 ("Input coupling 2", EINCPL, 'h', 2),
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35 ("Source type", ESRCTYP, 'h', 2),
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36 ("Chirp percent", int, 'h', 2),
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37 ("Burst percent", int, 'h', 2),
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38 ("Sweep direction", ESWPDIR, 'h', 2),
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39 ("Sweep mode", ESWPMOD, 'h', 2),
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40 ("Ext sample freq untis", EXAXIS, 'h', 2),
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41 ("Bandwidth units", EXAXIS, 'h', 2),
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42 ("Log span index", int, 'h', 2),
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43 ("Log start index", int, 'h', 2),
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44 ("Sweep rate units", EXAXIS, 'h', 2),
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45 ("Auto gain ref chan", EDEMODCH, 'h', 2),
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46 ("Demod channels", EDEMODCH, 'h', 2),
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47 ("Demod type chan 1", EDEMOD, 'h', 2),
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48 ("Demod type chan 2", EDEMOD, 'h', 2),
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49 ("Source level units", EXAXIS, 'h', 2),
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50 ("Source offset units", EXAXIS, 'h', 2),
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51 ("Trigger level units", EXAXIS, 'h', 2),
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52 ("Capt/thru length units", EXAXIS, 'h', 2),
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53 ("EU label 1", str, 's', 6),
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54 ("EU label 2", str, 's', 6),
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55 ("Auto carrier on/off", bool, 'h', 2),
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56 ("Time average on/off", bool, 'h', 2),
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57 ("Auto/fixed resolution", bool, 'h', 2),
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58 ("Auto gain on/off", bool, 'h', 2),
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59 ("Auto/fixed integrate",bool, 'h', 2),
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60 ("Fast average on/off", bool, 'h', 2),
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61 ("Overload reject on/off", bool, 'h', 2),
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62 ("Chan 1 float/ground", bool, 'h', 2),
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63 ("Chan 2 float/ground", bool, 'h', 2),
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64 ("Time throughput on/off", bool, 'h', 2),
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65 ("Demodulation on/off", bool, 'h', 2),
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66 ("EU/volts chan 1", bool, 'h', 2),
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67 ("EU/volts chan 2", bool, 'h', 2),
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68 ("Manual/auto arm", bool, 'h', 2),
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69 ("Demod preview on/off", bool, 'h', 2),
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70 ("Delete freq on/off", bool, 'h', 2),
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71 ("Lin res Fstart pegged", bool, 'h', 2),
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72 ("Swept Fstart pegged", bool, 'h', 2),
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73 ("Force length chan 1", decode_float, None, 4),
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74 ("Force length chan 2", decode_float, None, 4),
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75 ("Expon time constant 1", decode_float, None, 4),
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76 ("Expon time constant 2", decode_float, None, 4),
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77 ("Sweep time", decode_float, None, 4),
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78 ("Sweep rate", decode_float, None, 4),
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79 ("Sweep resolution", decode_float, None, 4),
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80 ("Sweep integrate time", decode_float, None, 4),
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81 ("Auto gain level", decode_float, None, 4),
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82 ("Auto gain limit", decode_float, None, 4),
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83 ("Source level", decode_float, None, 4),
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84 ("EU value chan 1", decode_float, None, 4),
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85 ("EU value chan 2", decode_float, None, 4),
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86 ("Trigger delay chan 1", decode_float, None, 4),
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87 ("Trigger delay chan 2", decode_float, None, 4),
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88 ("Integrate var thresh", decode_float, None, 4),
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89 ("Capt/thru length", decode_float, None, 4),
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90 ("Frequency span", decode_float, None, 4),
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91 ("Time record length", decode_float, None, 4),
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92 ("Frequency resolution", decode_float, None, 4),
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93 ("Time resolution", decode_float, None, 4),
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94 ("External sample rate", decode_float, None, 4),
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95 ("Sample rate (actual)", decode_float, None, 4),
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96 ("Range channel 1", decode_float, None, 4),
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97 ("Range channel 2", decode_float, None, 4),
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98 ("Preview time", decode_float, None, 4),
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99 ("Trigger level", decode_float, None, 4),
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100 ("Source dc offset", decode_float, None, 4),
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101 ("Fixed sine frequency", decode_float, None, 8),
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102 ("Start frequency", decode_float, None, 8),
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103 ("Center frequency", decode_float, None, 8),
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104 ("Sweep start", decode_float, None, 8),
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105 ("Sweep end", decode_float, None, 8),
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106 ("Carrier frequency", decode_float, None, 8),
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107 ]
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108
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109 def decode_state(data):
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110 """
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111 Decode the data (as generated by the HP3562A DSA in response to a
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112 "DSBN" command), and returns a dict (header)
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113
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114 header is the dictionnary of the header of the dumped data block,
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115 """
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116 header, idx = decode_header(data, HEADER)
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117 return header
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118
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119
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120 def main():
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121 import sys
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122 import optparse
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123 opt = optparse.OptionParser("A simple tool for tracing a dumped trace")
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124 opt.add_option('-f', '--filename', default=None,
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125 dest='filename',
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126 help='Output filename. If not set, read from stdin')
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127 opt.add_option('-m', '--mode', default='binary',
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128 dest='mode',
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129 help='Dumping mode (may be "binary" [default], "ascii" or "ansi")',
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130 )
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131
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132 options, argv = opt.parse_args(sys.argv)
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133
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134
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135 if options.filename is None:
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136 print "Can't deal stdin for now..."
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137 sys.exit(1)
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138 #try:
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139 if 1:
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140 header = decode_state(open(options.filename, 'rb').read())
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141 else:
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142 #except Exception, e:
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143 print "ERROR: can't read %s an interpret it as a HP3562 trace"%options.filename
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144 print e
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145 sys.exit(1)
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146
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147 print format_header(header, HEADER, 100)
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148
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149 if __name__ == "__main__":
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150 main()
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151

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