38 lines
1.4 KiB
ReStructuredText
38 lines
1.4 KiB
ReStructuredText
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.. _addon_vpr_syntax:
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Additional Syntax to Original VPR XML
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-------------------------------------
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.. warning:: Note this is only applicable to VPR8!
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Each ``<pb_type>`` should contain a ``<mode>`` that describe the physical implementation of the ``<pb_type>``. Note that this is fully compatible to the VPR architecture XML syntax.
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``<model>`` should include the models that describe the primitive ``<pb_type>`` in physical mode.
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``<layout>`` may include additioinal syntax to enable tileable routing resource graph generation
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.. option:: tileable="<bool>"
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Turn on/off tileable routing resource graph generator
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``<switch_block>`` may include addition syntax to enable different connectivity for pass tracks
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.. option:: sub_type="<string>"
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Connecting type for pass tracks in each switch block
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If not specified, the pass tracks will the same connecting patterns as start/end tracks, which are defined in ``type``
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.. option:: sub_Fs="<int>"
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Connectivity parameter for pass tracks in each switch block. Must be a multiple of 3.
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If not specified, the pass tracks will the same connectivity as start/end tracks, which are defined in ``fs``
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.. note:: Currently, OpenFPGA only supports uni-directional routing architectures
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.. note:: Currently, OpenFPGA only supports 1 ``<equivalent_sites>`` to be defined under each ``<tile>``
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.. note:: OpenFPGA require explicit names to be defined for each routing segement in ``<segmentlist>``
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