82 lines
2.6 KiB
Python
82 lines
2.6 KiB
Python
# -*- coding: utf-8 -*-
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"""High level wrapper for pxi resources.
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This file is part of PyVISA.
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:copyright: 2014-2022 by PyVISA Authors, see AUTHORS for more details.
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:license: MIT, see LICENSE for more details.
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"""
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from .. import attributes, constants
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from ..attributes import Attribute
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from .registerbased import RegisterBasedResource
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from .resource import Resource
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@Resource.register(constants.InterfaceType.pxi, "BACKPLANE")
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class PXIBackplane(RegisterBasedResource):
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"""Communicates with to devices of type PXI[interface]::BACKPLANE
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Do not instantiate directly, use
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:meth:`pyvisa.highlevel.ResourceManager.open_resource`.
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"""
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#: Manufacturer name.
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manufacturer_name: Attribute[str] = attributes.AttrVI_ATTR_MANF_NAME()
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#: Model name of the device.
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model_name: Attribute[str] = attributes.AttrVI_ATTR_MODEL_NAME()
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class PXICommon(RegisterBasedResource):
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"""Common parent class for PXI INSTR and MEMACC resources."""
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#: Number of elements by which to increment the source offset after a transfer.
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source_increment: Attribute[int] = attributes.AttrVI_ATTR_SRC_INCREMENT()
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#: Number of elements by which to increment the destination offset after a transfer.
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destination_increment: Attribute[int] = attributes.AttrVI_ATTR_DEST_INCREMENT()
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#: Should I/O accesses use DMA (True) or Programmed I/O (False).
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allow_dma: Attribute[bool] = attributes.AttrVI_ATTR_DMA_ALLOW_EN()
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@Resource.register(constants.InterfaceType.pxi, "INSTR")
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class PXIInstrument(PXICommon):
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"""Communicates with to devices of type PXI::<device>[::INSTR]
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More complex resource names can be specified with the following grammar:
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PXI[bus]::device[::function][::INSTR]
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or:
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PXI[interface]::bus-device[.function][::INSTR]
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or:
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PXI[interface]::CHASSISchassis number::SLOTslot number[::FUNCfunction][::INSTR]
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Do not instantiate directly, use
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:meth:`pyvisa.highlevel.ResourceManager.open_resource`.
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"""
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#: Manufacturer name.
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manufacturer_name: Attribute[str] = attributes.AttrVI_ATTR_MANF_NAME()
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#: Manufacturer identification number of the device.
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manufacturer_id: Attribute[int] = attributes.AttrVI_ATTR_MANF_ID()
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#: Model name of the device.
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model_name: Attribute[str] = attributes.AttrVI_ATTR_MODEL_NAME()
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#: Model code for the device.
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model_code: Attribute[int] = attributes.AttrVI_ATTR_MODEL_CODE()
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@Resource.register(constants.InterfaceType.pxi, "MEMACC")
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class PXIMemory(PXICommon):
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"""Communicates with to devices of type PXI[interface]::MEMACC
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Do not instantiate directly, use
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:meth:`pyvisa.highlevel.ResourceManager.open_resource`.
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"""
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