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getByteOffset method in Frame class #786

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dg-deus opened this issue Aug 17, 2023 · 3 comments
Open

getByteOffset method in Frame class #786

dg-deus opened this issue Aug 17, 2023 · 3 comments

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@dg-deus
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dg-deus commented Aug 17, 2023

I see "getByteOffset" method in rapidwright/javadoc, but I cannot find it when using RapidWright with python.

Is this not implemented yet, or is there something wrong with my environments?

Thank you in advance.

@clavin-xlnx
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Sorry, the getByteOffset entry in the Javadoc is an error, we currently don't have a API for that. Are you able to share more about what you are trying to do? Perhaps there is another way we can help.

@dg-deus
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dg-deus commented Sep 12, 2023

In some cases, I want to know where some LUTs reside in bitstream.
I thought "getByteOffset" might help me to find the solution.

@clavin-xlnx
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clavin-xlnx commented Oct 27, 2023

Sorry for the delayed response. The getByteOffset entry has been removed from the javadoc.

As for locating the LUTs in the bitstream, we can only provide information about where SRL and LUTRAM type primitives exist in the bitstream as that is documented in the Logic Location file (.ll) provided from Vivado. The current documentation on how to update those state bits related to LUTRAMs is here https://www.rapidwright.io/docs/Bitstream_Manipulation.html . However, explicit locations can be found in a design by using the Logic Location file.

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