Mercurial > pygpibtoolkit / file comparison
comparison: gpib_plotter.py
gpib_plotter.py
- changeset 8
- aa3d55f78563
- parent 1
- 0670b1f5c155
- child 12
- a04bea92c509
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| 7:2e2742648546 | 8:aa3d55f78563 |
|---|---|
| 1 import sys, os | 1 import sys, os |
| 2 import time | 2 import time |
| 3 import gpib | 3 import gpib |
| 4 | 4 |
| 5 class GPIBplotter(gpib.GPIB): | 5 class GPIBplotter(gpib.GPIB): |
| 6 replies={ | 6 _replies={ |
| 7 "OE": "0", | 7 "OE": "0", |
| 8 "OH": "0,0,10000,7500", | 8 "OH": "0,0,10000,7500", |
| 9 "OI": "7470A", | 9 "OI": "7470A", |
| 10 "OP": "0,0,10000,7500", | 10 "OP": "0,0,10000,7500", |
| 11 "OO": "0,1,0,0,0,0,0,0", | 11 "OO": "0,1,0,0,0,0,0,0", |
| 26 command.) | 26 command.) |
| 27 """ | 27 """ |
| 28 res = "" | 28 res = "" |
| 29 i=0 | 29 i=0 |
| 30 replies = self._replies.copy() | 30 replies = self._replies.copy() |
| 31 if wait_timeout is not None or not isinstance(wait_timeout, int): | 31 if wait_timeout is not None and not isinstance(wait_timeout, (float, int)): |
| 32 raise TypeError | 32 raise TypeError, "wait_timeout (%s:%s) has wrong type"%(repr(wait_timeout), type(wait_timeout)) |
| 33 if wait_timeout<0: | 33 if wait_timeout<0: |
| 34 raise ValueError | 34 raise ValueError |
| 35 | 35 |
| 36 self._cnx.timeout = wait_timeout | 36 self._cnx.timeout = wait_timeout |
| 37 firstloop = True | 37 firstloop = True |
| 40 if firstloop: | 40 if firstloop: |
| 41 self._cnx.timeout = self._timeout | 41 self._cnx.timeout = self._timeout |
| 42 firstloop = False | 42 firstloop = False |
| 43 if l == "": | 43 if l == "": |
| 44 i += 1 | 44 i += 1 |
| 45 for k, v in replies.items(): | 45 if i == (self._retries-1): |
| 46 if res.endswith(k) or res.endswith(k+';'): | 46 for k, v in replies.items(): |
| 47 self._cnx.write("%s"%v) | 47 eres = res.strip() |
| 48 if k == "OS": | 48 if eres.endswith(k) or eres.endswith(k+';') or eres.endswith(k+';OE'): |
| 49 replies[k] = "16" | 49 self._cnx.write("%s"%v) |
| 50 break | 50 if k == "OS": |
| 51 self._cnx.write('\r') | 51 replies[k] = "16" |
| 52 break | |
| 53 self._cnx.write('\r') | |
| 52 if i > self._retries/2: | 54 if i > self._retries/2: |
| 53 time.sleep(self._timeout) | 55 time.sleep(self._timeout) |
| 54 continue | 56 else: |
| 55 res += l + "\n" | 57 res += l + "\n" |
| 56 i = 0 | 58 i = 0 |
| 57 return res | 59 return res |
| 58 | 60 |
| 59 if __name__ == '__main__': | 61 if __name__ == '__main__': |
| 60 import optparse | 62 import optparse |
| 61 opt = optparse.OptionParser('A simple HP7470A GPIB plotter emulator for USB-GPIB bundle (ProLogix)') | 63 opt = optparse.OptionParser('A simple HP7470A GPIB plotter emulator for USB-GPIB bundle (ProLogix)') |
| 89 else: | 91 else: |
| 90 outf = sys.stdout | 92 outf = sys.stdout |
| 91 | 93 |
| 92 | 94 |
| 93 try: | 95 try: |
| 94 plotter = GPIBplotter(device=options.device, address=options.address) | 96 plotter = GPIBplotter(device=options.device, address=int(options.address), |
| 97 timeout=0.06) | |
| 95 except (gpib.SerialException, gpib.ConnectionError), e: | 98 except (gpib.SerialException, gpib.ConnectionError), e: |
| 96 sys.stderr.write('Connection error:\n\t' + '\n\t'.join([str(x) for x in e.args]) + '\n') | 99 sys.stderr.write('Connection error:\n\t' + '\n\t'.join([str(x) for x in e.args]) + '\n') |
| 97 sys.stderr.write('Check your parameters\n') | 100 sys.stderr.write('Check your parameters\n') |
| 98 sys.exit(1) | 101 sys.exit(1) |
| 99 if options.verbose: | 102 if options.verbose: |
