Is there a way to generate 'par.tcl' without running synthesis? about hammer HOT 5 CLOSED

Or you could try changing SRAM coordinates in the json file that carries the information of synthesis to par (maybe output of synthesis and input of par), instead of the yaml file which is the input to the whole syn+par process...

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I'm no expert, but you could try checking the ingredients and target of the "syn" recipe(s) in the hammer.d file in the build directory, then use "touch" to make target of syn newer than the yaml file after editing yaml file. The targets MIGHT be the json files...

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I'm trying to manually place the SRAMs of Small BOOM chip. I don't want to re-run synthesis every time I change the SRAM placement in YAML configs. That's why I'm asking this question.

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@m-usama-z has the correct suggestions. Alternatively, in Chipyard, you can also do the following:

make redo-par HAMMER_EXTRA_ARGS='-p <your edited yml file>'

This breaks the dependency chain and also appends the argument to the underlying Hammer command with your updated constraints. These redo targets are also present in the generated hammer.d Make fragment.

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It works! I think I just forgot to add the "HAMMER_EXTRA_ARGS" arguments.
The "par-inpu.json" remains the same but I do see differences in "floorplan.tcl" after re-placing the SRAMs.
Thank you for your answer.

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