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doc update for packable XML syntax in VPR

This commit is contained in:
Xifan Tang 2020-04-06 18:37:05 -06:00
parent 13cd48c119
commit 7a4137fdcf
1 changed files with 10 additions and 2 deletions
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docs/source/arch_lang/addon_vpr_syntax.rst
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@ -10,10 +10,18 @@ Models, Complex blocks and Physical Tiles
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.
``<model>`` should include the models that describe the primitive ``<pb_type>`` in physical mode.
.. note:: ``<model>`` should include the models that describe the primitive ``<pb_type>`` in physical mode.
.. note:: Currently, OpenFPGA only supports 1 ``<equivalent_sites>`` to be defined under each ``<tile>``
.. option:: <mode packable="<bool">/>
OpenFPGA allows users to define it a mode is packable for VPR.
By default, the packable is set to ``true``.
This is mainly used for the mode that describes the physical implementation, which is typically not packable. Disable it in the packing and signficantly accelerate the packing runtime.
.. note:: Once a mode is set to unpackable, its child modes will be unpackable as well.
Layout
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