https://hackfiber.com/#updates Bring-up notes from an open FPGA PON platform: 10G-EPON, GPON and 1G-EPON in one bitstream. en Mon, 17 Aug 2026 00:00:00 GMT https://hackfiber.com/#updates hackfiber-2026-08-17-10g-epon-downstream-live Mon, 17 Aug 2026 00:00:00 GMT Milestone Live-timestamp GATE emission on real fiber against a commercial ISP ONU. Optical RX confirmed at -5.9 dBm across hours of continuous transmit. MPCP registration handshake still in bring-up. https://hackfiber.com/#updates hackfiber-2026-08-02-gpon-in-bring-up Sun, 02 Aug 2026 00:00:00 GMT In progress G.984 downstream framer wired into the shared multi-MAC datapath. Scrambler and BIP-8 pass self-check; upstream burst timing next. https://hackfiber.com/#updates hackfiber-2026-07-21-multi-mac-mux-landed Tue, 21 Jul 2026 00:00:00 GMT Architecture All MACs now synthesize into one bitstream with PCS-layer muxes per SFP+ cage. Protocol becomes a CSR write - microseconds, no reflash, independently per port. https://hackfiber.com/#updates hackfiber-2026-07-04-cl76-fec-bit-exact Sat, 04 Jul 2026 00:00:00 GMT Verification RS(255,223) encoder matches IEEE 802.3-2018 Annex 76A official vectors across 1,204 codewords, plus a W=8-vs-W=1 co-simulation. https://hackfiber.com/#updates hackfiber-2026-06-18-v2-board-spun Thu, 18 Jun 2026 00:00:00 GMT Hardware 138K-LUT FPGA, 8 SerDes lanes at 12.5 Gbps, two BiDi SFP+ cages.