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#!/usr/bin/env python3
"""Example/test script for use the with Prologix USB GPIB interface"""
import atexit
import os
import sys
from scpi import SCPIDevice
from scpi.transports.gpib import prologix
from scpi.wrapper import AIOWrapper
from scpi.devices.hp6632b import HP6632B
from scpi.devices.generic import MultiMeter
if __name__ == "__main__":
if len(sys.argv) < 2:
print(f"run with python -i {__file__} /dev/ttyUSB0")
sys.exit(1)
# Then put to interactive mode
os.environ["PYTHONINSPECT"] = "1"
# Get the low-level GPIB transport
aiogpib = prologix.get(sys.argv[1])
# And the mapper that handlers asyncio transparently
gpib = AIOWrapper(aiogpib)
atexit.register(gpib.quit)
print("*** Scanning bus for devices ***")
devlist = gpib.scan_devices()
devdict = {}
for addr, idstr in devlist:
man, model, _, _ = idstr.split(",")
# Get device specific transport instance
dtransport = aiogpib.get_device_transport(addr)
# Get the device class with the transport
aiodev = SCPIDevice(dtransport)
if man == "HEWLETT-PACKARD":
if model == "6632B":
aiodev = HP6632B(dtransport)
if model == "34401A":
aiodev = MultiMeter(dtransport)
# And get the mapper that handles asyncio transparently
devdict[addr] = AIOWrapper(aiodev)
print("Added {:s} as devdict[{:d}]".format(idstr, addr))
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