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#!/usr/bin/env python
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#-*- coding: utf-8 -*-
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"""Simple python library to communicate with Prologix USB GPIB module.
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"""
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import time
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import sys
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import os
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import matplotlib.pyplot as plt
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import numpy as np
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import serial
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__author__ = "Alexis Jeandet"
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__copyright__ = "Copyright 2015, Laboratory of Plasma Physics"
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__credits__ = []
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__license__ = "GPLv2"
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__version__ = "1.0.0"
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__maintainer__ = "Alexis Jeandet"
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__email__ = "alexis.jeandet@member.fsf.org"
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__status__ = "Development"
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class UsbGpib(object):
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modedic = {0:"DEVICE" ,
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1:"CONTROLLER" ,}
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revmodedic = {"DEVICE":"0" ,
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"CONTROLLER":"1" ,}
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def __init__(self,port,address=0,baudrate=9600):
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self._port=serial.Serial(port,timeout=0.1,baudrate=baudrate)
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self._address=address
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self.write("++auto 1")
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self._auto=1
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self.mode=1
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self.write("++ver")
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self.version=self.read()
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def set_as_device(self):
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self.write("++mode 0")
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def set_as_controller(self):
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self.write("++mode 1")
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@property
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def mode(self):
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self.write("++mode")
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self._mode= self.modedic[int(self.read())]
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return self._mode
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@mode.setter
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def mode(self,new_mode):
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if type(new_mode) == type("str"):
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self._mode=self.revmodedic[new_mode]
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elif type(new_mode) == type(1):
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self._mode=new_mode
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self.write("++mode %d" % self._mode)
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@property
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def address(self):
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self._address=int(self.read("++addr"))
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return self._address
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@address.setter
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def address(self,value):
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self._address=int(value)
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self.write("++addr %d" % self._address)
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def write(self,command):
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self._port.write(("%s\n\r" % command).encode())
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self._port.flush()
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def read(self,command=""):
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if not command=="":
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self.write(command)
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if command[0:2]!="++" and self._auto==0:
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self.write("++read")
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return self._port.readall()
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def idn(self):
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return self.read("*IDN?")
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@property
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def auto_read_after_write(self):
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self._auto=int(self.read("++auto"))
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return self._auto
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@auto_read_after_write.setter
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def auto_read_after_write(self,enabled):
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self._auto=enabled
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self.write("++auto %d" % self._auto)
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