An update on SymbiFlow - a multiplatform FPGA project
summary
SymbiFlow positions itself as the gcc of FPGAs: an end-to-end, open-source flow from Verilog to bitstream. It uses Yosys for synthesis, Project IceStorm/Trellis/X-Ray for bitstream docs, and two PNR engines: nextpnr (modern C++, iCE40 support, experimental ECP5) and VPR (long history, initial Series‑7 logic). iCE40 is fully usable, ECP5 has broad documentation but needs DSP/advanced IO work, and Series‑7 (xc7a50t region) has logic and a conservative timing model while routing and advanced tiles are still being decoded. bitstream documentation and test harnesses are the focus.
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chapters (8)
- 0:00Start
- 3:07What is SymbiFlow?
- 3:53GCC for FPGAs!
- 5:01What are the parts?
- 8:27How did we get here?
- 11:59Current status? Bitstream Docs
- 20:53Current status? Synthesis & Mapping & PnR
- 23:59You can help!
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