gpib.py

changeset 35
3b7a38af5c42
parent 34
022e881b758e
child 36
cb4124e3e75b
--- a/gpib.py	Sat Jan 26 11:39:30 2008 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,64 +0,0 @@
-"""
-gpib: create serial connection to GPIB-USB device (ProLogix is the
-only supported device for now).
-"""
-import serial
-from serial.serialutil import SerialException
-import time
-
-class ConnectionError(Exception):
-    pass
-
-class Constants(object):
-    def __init__(self):
-        self.constants = {}
-        self.descriptions = {}
-        self.rev_constants = {}
-        for v, k, m in self._constants:
-            self.k = v
-            self.constants[v] = k
-            self.rev_constants[k] = v
-            self.descriptions[v] = m
-            
-    def __getitem__(self, k):
-        if isinstance(k, basestring):
-            return self.rev_constants[k]
-        else:
-            return self.constants[k]
-
-    def get_description(self, k):
-        if isinstance(k, basestring):
-            k = self.rev_constants[k]
-        return self.descriptions[k]
-    
-
-class MODE(Constants):    
-    _constants = [(1, "CONTROLLER", "Set device as Controller in Charge"),
-                  (0, "DEVICE", "Set device as simple listener"),
-                  ]
-# TODO
-# class STATUS_BYTE(Constants):
-#     # IEEE 488.2 Status Byte constants
-#     MAV = 0x10 # Message AVailable: bit 4 of the Status Byte
-#     ESB = 0x20 # Event Status Bit: bit 5 of the Status Byte
-#     MSS = 0x40 # Master Summary Status bit: bit 6 of the Status Byte (NOT
-#                # sent in response to a serial poll)
-#     RQS = 0x40 # Request Service: bit 6 of the Status Byte (when sent in
-#                # response to a serial poll)
-# class SESR(Constants):
-#     # SESR constants (Standard Event Status Register)
-#     PON = 0x80 # Power On: Power has been turned On since last register
-#                # read access
-#     URQ = 0x40 # User Request: the user has activated some device control
-#                # (whatever the Remote Local state is)
-#     CME = 0x20 # Command Error
-#     EXE = 0x10 # Execution Error
-#     DDE = 0x08 # Device Dependant Error
-#     QYE = 0x04 # QuerY Error (attempt to read data while Output Queue is
-#                # empty, or data in the OQ was lost)
-#     RQC = 0x02 # Request Control: tell the CiC that the device wants to
-#                # become the CiC
-#     OPC = 0x01 # Operation Complete: device has completed any pending
-#                # operation (ready to accept new commands). This bit is
-#                # generated in response to a OPC command.
-    

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