56 lines
1.6 KiB
Python
Executable File
56 lines
1.6 KiB
Python
Executable File
#!/usr/bin/python2
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# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Interact with a SCPI device, checking for errors each time."""
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import cellular_system_error
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import logging
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import prologix_scpi_driver
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import scpi
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import sys
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try:
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[target] = sys.argv[1:]
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except ValueError:
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print 'usage: %s gpib_host_name' % sys.argv[0]
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# Default to the PXT.
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target = '172.22.50.244'
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logging.basicConfig(level=logging.INFO)
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driver = prologix_scpi_driver.PrologixScpiDriver(hostname=target,
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port=1234,
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read_timeout_seconds=1)
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s = scpi.Scpi(driver)
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s.opc_on_stanza = False
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while True:
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try:
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line = raw_input('scpi> ').rstrip()
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except EOFError:
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print
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exit(0)
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try:
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if line[-1:] == '?':
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try:
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s.Query(line)
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# Catch everything, we always want to try to recover.
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except Exception:
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print "**************"
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print "Query did not result in any data before the timeout"
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print "**************"
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else:
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try:
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s.SendStanza([line])
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# Catch everything, we always want to try to recover.
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except Exception as e:
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print "**************"
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print "Command failed"
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print "**************"
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except cellular_system_error:
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continue
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