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Key points
- OpenPCIE is an open-source project hosted on GitHub; this item points to its code repository rather than an article, so the focus is the engineering itself.
- The project covers an FPGA root complex, i.e. implementing the PCIe host-side role on FPGA rather than the usual endpoint device.
- It also spans OpenBackplane backplane work and EduBOS5 RISC-V material, forming a combined hardware and software open stack.
- Co-simulation is listed as part of the project, pointing to a joint verification flow for hardware logic and software environments.
- For FPGA developers, the value lies in a reusable host-side PCIe reference implementation and an open collaboration model.
Background
PCIe on FPGA has long centered on endpoint devices, while the root complex side is usually handled by dedicated processors or commercial IP, leaving open implementations relatively scarce. As RISC-V soft cores and open backplane specifications mature on FPGA, advancing host side, backplane and firmware within one open project can lower the barrier to building a complete link and make co-simulation and verification flows easier to share.
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