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