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| sf-slack2 | <butta> We are currently looking into making a blackbox model for DSPs so we can get some designs through routing (but obviously not bitstream generation). Does anyone have advice on how to do this? We are a bit confused about whether all the .pb_type.xml are generated from a .sim.v or if some are handwritten because we can't find .sim.v for the brams. | 18:29 |
|---|---|---|
| sf-slack2 | <kgugala> @butta only a few pb_type.xmls are generated from sim.v files | 18:34 |
| sf-slack2 | <kgugala> v2x (the tool used for generating xmls) does not support all the features we need to fully switch to generated xmls | 18:35 |
| sf-slack2 | <kgugala> you're right - BRAMs are written by hand | 18:35 |
| sf-slack2 | <butta> Oh okay that's helpful | 18:36 |
| sf-slack2 | <butta> So to get a blackbox model for DSPs do we just need to write the .model.xml and the .pb_type.xml or is there other stuff we are missing? | 18:37 |
| sf-slack2 | <kgugala> you need to include them somwhere in the upper level xml | 18:37 |
| sf-slack2 | <kgugala> the add_file_target CMAKE function scans for all the included xmls and adds them to a dependency list | 18:38 |
| sf-slack2 | <kgugala> and you need to have your pb_type and model included somewhere in the arch.xml | 18:39 |
| sf-slack2 | <kgugala> architectures are defined e.g. here https://github.com/SymbiFlow/symbiflow-arch-defs/blob/master/xc7/archs/artix7/devices/xc7a50t-arty-roi-virt/CMakeLists.txt | 18:49 |
| tpb | Title: symbiflow-arch-defs/CMakeLists.txt at master · SymbiFlow/symbiflow-arch-defs · GitHub (at github.com) | 18:49 |
| sf-slack2 | <kgugala> (similar for other supported devices) | 18:49 |
| sf-slack2 | <kgugala> you'd need to add a tile definition and include it in the architecture definition | 18:50 |
| sf-slack2 | <kgugala> I mean DSP tile definition | 18:50 |
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