Add a callout block under the four-repo branch table noting that the
Virtex-7 work was developed and validated against Vivado 2020.1, that
other 2018+ releases may work, and that the upstream-recommended 2017.2
is too old for this device (predates xc7vx485tffg1761-2 HP-bank IOB18
support, several HCLK_IOI/CMT properties the fuzzers query, and the
write_pip_txtdata bulk paths the utils.tcl patch exercises).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
- Add the four-repo upstream branch map (prjxray / nextpnr-xilinx-meta /
nextpnr-xilinx / demo-projects), pointing at the openXC7 mirrors.
- Replace the smoke-test-passes Achievements with the current end-to-end
state: rst_to_led / counter / counter_bufr / telegraph at 0/0 vs Vivado
with zero .frm patches, and the PicoSoC UART demo running on real VC707
silicon at 125 MHz.
- List the 7 codified HP-bank glue segbits (LIOB18 IBUF/OBUF Y0+Y1, RIOB18
IBUFDS, INT_L IOB_COL_OBUF_CASCADE_Y1 / IOB_COL_BANK_ACTIVE /
GFAN_TIE_ROOT_GLUE, HCLK_L BUFRCLK3_ACTIVE) plus the 14 IOB18 silicon
defaults.
- New 'Virtex-7 architecture discoveries' section describing the things
that turned out to differ from Kintex-7 and weren't inherited by
transplant: HP vs HR silicon, HCLK_IOI vs HCLK_IOI3, L/R-side mirror,
the bank-glue category itself (tile-in-use markers / Y0+Y1 OBUF
cascade / PUDC_B / IBUFDS pair root), the .DRIVE. vs .SLEW. classifier
gotcha, HCLK_L BUFRCLK3 leaf, GFAN T-tie INT_L+10 row glue, fasm2bels
NOCLKINV block, nextpnr-xilinx OBUF T-tie convergence + Y137/Y138 wire
mapping, and the PicoSoC RAM128/256X1S packing requirement.
- Goals now reflect what's still open: the 228-bit PicoSoC CLB-glue
family, the 236 missing IOI features, fasm2bels past NOCLKINV, and the
Y137/Y138 nextpnr-xilinx wire mapping.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Port prjxray to the Virtex-7 family, modelled on Kintex-7, targeting
xc7vx485tffg1761-2 (vc707). Non-breaking for the existing families.
Family registration:
- settings/virtex7.sh, settings/virtex7/devices.yaml
- Makefile: virtex7 in DATABASES/XRAY_PARTS + db-extras-virtex7 targets
- utils/update_parts.py, update_resources.py: virtex7 choice
- CI matrix (Pipeline.yml), Vivado edition (xilinx.sh), README
Architecture adaptations for the HP-bank-only VX part (verified non-breaking):
- update_resources.tcl: fall back to HP banks when no HR banks exist
- XRAY_IOSTANDARD env (default LVCMOS33; LVCMOS18 for virtex7), parameterised
across the fuzzer generate.tcl files
- fuzzers: enable HP-bank (iob18/ioi18) + IOI/HCLK handling for virtex7;
GTX skipped (ffg1761 bonds only ~7 of 14 GTX quads)
- 005-tilegrid: HP/HR bank tile handling; iob18_int INT offset 3->2;
ioi18 AUTO_FRAME; cfg PDRC-2 DRC disable; add_tdb skips unsolved edge tiles;
per-specimen retry for transient FlexLM SIGSEGV under concurrency
- per-family Vivado version gate (virtex7 -> v2020.1.1)
- XRAY_ROI and XRAY_ROI_GRID tuned to a compact CLBLL+CLBLM region
General fixes:
- tools/bitread.cc: fix use-after-free of the mmap'd bitstream (exposed by the
larger Virtex-7 bitstream)
- utils/environment.python.sh: add repo root to PYTHONPATH (PEP 660 editable
install doesn't expose the repo-root utils/ package)
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Changing "fasm" to "pyfasm" was incorrect; it is unrelated to this project.
Updated this line in ''requirements.txt'' to install "fasm" from the submodule
''third_party/fasm''. Also, removed aliasing of "python" in README.
Signed-off-by: Jake Mercer <jmercer04@qub.ac.uk>
Updated the Quickstart Guide section of the README as some deviations were
required when following this with a fresh Ubuntu 16.04 install. Fixes to
''requirements.txt'' were required to remove the "futures" dependency which is
in the python3 standard library and is only intended for use with python2;
"fasm" now goes by "pyfasm".
Signed-off-by: Jake Mercer <jmercer04@qub.ac.uk>
Rearrange steps to make sure the user always downloads a stable
pre-generated database or builds everything, before working on
fuzzers.
Signed-off-by: Oguz Meteer <info@guztech.nl>
This fixes the problem that when sourcing the vivado settings file the
library search path is modified resulting in non-vivado binaries not working
due to being dynamically linked against the vivado libraries instead of the
system ones.
Signed-off-by: Felix Held <felix-github@felixheld.de>
CMake 3.5.0 or later is required. For Ubuntu 14.04, that has a
different package name.
Signed-off-by: Rick Altherr <kc8apf@kc8apf.net>
Signed-off-by: Tim 'mithro' Ansell <mithro@mithis.com>
Dr Jonathan Richard Robert Kimmitt
Unai Martinez-Corral
Bastian Löher
Alessandro Comodi
Daniel Schultz
Tomasz Michalak
Tim Callahan
Tim 'mithro' Ansell
Dominik Wernberger
Dustin DeWeese
Jake Mercer
Felix Held
Oguz Meteer
John McMaster
rapha
Sarah Maddox
Davide
Rick Altherr
Clifford Wolf
Tim 'mithro' Ansell