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dj-park's avatar
dj-park
Icon for Occasional Contributor rankOccasional Contributor
3 years ago
Solved

Generate only partial bitstream not the full bitstream

In Partial Reconfiguration flow, I've noticed that when I compile a Persona Implementation, it generates both the full bitstream(.sof) and partial bitstreams for all PR partitions(.pmsf and .rbf...
  • sstrell's avatar
    sstrell
    3 years ago

    The .sof files for each implementation revision allow you to test your design with that persona in place without having to perform a PR first. If you don't use them, just ignore or trash them.

    Once you have a .pmsf file for a partition, use Convert Programming Files to create a .rbf for it. Your workaround is saying that partition_2 is a SUPR (static update PR) region. Normally a .rbf file is created for a SUPR region even though you can't use that .rbf to PR a SUPR region during runtime (why it's call static). I guess I'm not sure what your goal is with (2).

dj-park's avatar
dj-park
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

Thanks for the prompt reply.

The objective of (1) and (2) are both to reduce the bit generation time.

What I am trying to do with (1) is that

if I can generate only .rbf file for partition_1, for instance,

then the bit generation time is shorter than when I generate both .sof file and .rbf file for partition_1.

I wonder if there exists any option for this.

Regarding my workaround...

below is the Design Partitions Window, and I set the "RBF Generation" as "No" for leaf_2~leaf_9 so that I don't generate

.rbf files for them. They are NOT set as SUPR. I checked the SUPR tutorial in here(https://github.com/intel/fpga-partial-reconfig/tree/master/tutorials/agilex_pcie_devkit_blinking_led_supr), and

if they are set as SUPR partition, they are not colored yellow I guess.