Mercurial > pygpibtoolkit / file comparison
comparison: dump_trace.py
dump_trace.py
- changeset 1
- 0670b1f5c155
- parent 0
- 9af1509775b6
- child 4
- 269aacbb2bf2
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| 0:9af1509775b6 | 1:0670b1f5c155 |
|---|---|
| 1 import sys | |
| 2 import time | |
| 3 | |
| 4 MODE = {'binary': 'DDBN', | |
| 5 'ascii': 'DDAS', | |
| 6 'ansi': 'DDAN', | |
| 7 } | |
| 8 | |
| 9 def read_trace(cnx, mode="binary"): | |
| 10 mode = mode.lower() | |
| 11 assert mode in MODE | |
| 12 mode = MODE[mode] | |
| 13 res = "" | |
| 14 cnx.write('%s\r'%mode) | |
| 15 i = 0 | |
| 16 while i<5: | |
| 17 l = cnx.readline() | |
| 18 if l.strip() == "": | |
| 19 i += 1 | |
| 20 time.sleep(0.1) | |
| 21 continue | |
| 22 #print "got a new line (%s chars) [i=%s]"%(len(l), i) | |
| 23 res += l | |
| 24 i = 0 | |
| 25 return res | |
| 26 | |
| 27 | |
| 28 | |
| 29 import optparse | |
| 30 opt = optparse.OptionParser() | |
| 31 opt.add_option('-f', '--filename', default=None, | |
| 32 dest='filename', | |
| 33 help='Output filename. If not set, write to stdout') | |
| 34 opt.add_option('-d', '--device', default='/dev/ttyUSB0', | |
| 35 dest='device', | |
| 36 help='Device of the RS232 connection (default: /dev/ttyUSB0)', | |
| 37 ) | |
| 38 opt.add_option('-m', '--mode', default='binary', | |
| 39 dest='mode', | |
| 40 help='Dumping mode (may be "binary" [default], "ascii" or "ansi")', | |
| 41 ) | |
| 42 opt.add_option('-a', '--address', default=0, | |
| 43 dest='address', | |
| 44 help='GPIB address of the device', | |
| 45 ) | |
| 46 options, argv = opt.parse_args(sys.argv) | |
| 47 | |
| 48 cnx = open_connection(device=options.device, | |
| 49 address=int(options.address), mode=1) | |
| 50 res = read_trace(cnx, mode=options.mode) | |
| 51 | |
| 52 if options.filename: | |
| 53 open(options.filename, 'w').write(res) | |
| 54 else: | |
| 55 print res | |
| 56 |
