Commit Graph

10 Commits

Author SHA1 Message Date
3579c5efb0 fpga: load registry from yaml at runtime, not compile-time
- registry moves from the array in fpga.c to fpga_registry.yaml at the
  repo root, parsed via libyaml (pkg-config yaml-0.1); adding a part is
  now a YAML edit, no rebuild
- looked up CWD-relative (like bsdl_files/), overridable with
  $BS_FPGA_REGISTRY, loaded lazily once; public API unchanged
- fpga_list shows the source file (fpga_registry_source())
- add microsemi_igloo2/smartfusion2 and lattice_machxo2/3 families,
  ready for the non-Xilinx targets
- docs updated: CLAUDE.md, README, tutorial "add a target" walkthrough

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-24 10:19:53 +02:00
d6b5fb572f doc: how to build a not-pre-built proxy (KU15P) in the tutorial
quartiq ships no UltraScale+ proxy, so the KU15P .bit must be built from
xilinx_bscan_spi.py (Migen + Vivado) after adding the part to the
generator's device table. Put the operational steps in the tutorial's
Phase 2.5 (where users look for a bitstream); CLAUDE.md just points to
it.
2026-05-24 01:04:44 +02:00
f4ff305cd1 doc: flesh out "add an FPGA target", explain caveats
Rework tutorial section 6 with a worked XCKU040 example: how to pull IR
opcodes/IDCODE from the BSDL (with a grep), a field-by-field table, the
verbatim registry entry, and a dedicated section on what `caveats` are
(bit-flags for hardware gotchas, not free text) and how to add one.
Also fixes the broken in-page anchor links to the section.
2026-05-24 00:57:45 +02:00
71b74fa03d fpga: rename "quirk" to "caveat"
"quirk" was unclear jargon; "caveat" matches the wording already used in
the README/CLAUDE.md ("Xilinx caveats"). Renames the struct field, the
FPGA_QUIRK_* macro, the fpga_info output and the docs. No behaviour
change.
2026-05-24 00:31:47 +02:00
4f46bc6d3c doc: proxy SPI path validated on KCU105 (JEDEC 0x20 BB 19)
bscan_load_bitstream + bscan_jedec confirmed end to end on a KCU105:
reads the Micron MT25QU256 config flash (0x20 BB 19) through the
quartiq XCKU040 proxy. Replace the illustrative JEDEC output with the
real one.
2026-05-24 00:04:31 +02:00
1814c4cf0c doc: explain what a JEDEC ID is
The bscan_jedec command and tutorial referenced the JEDEC ID without
defining it. Describe the 0x9F RDID command and the manufacturer +
device byte layout, in the tutorial and the command help.
2026-05-23 17:18:09 +02:00
f1c8a8aac7 doc: document SPI flashing through the BSCAN proxy
Rewrite the Phase 2.5 tutorial section for the now-working path: fetch
the proxy bitstream, bscan_load_bitstream, bscan_jedec, and the
bscan_spi_xfer primitive. Note the JPROGRAM reconfiguration caveat. The
shown JEDEC output is illustrative — not yet hardware-confirmed.
2026-05-23 17:16:36 +02:00
952c010c63 script: shorten jtag_* command names
Drop the get_/set_/_pin/_list noise from the JTAG commands (e.g.
jtag_get_probes_list -> jtag_probes, jtag_set_spi_cs_pin -> jtag_spi_cs,
jtag_spi_rd_wr -> jtag_spi_xfer). jtag_open_probe -> jtag_open (not
jtag_probe, which would clash with jtag_probes under tab-completion).

Hard rename, no aliases. Updates the state-dump emitter, help text,
example script and docs accordingly.
2026-05-23 16:33:23 +02:00
cacbb9d00e doc: document Digilent backend and probe-open by index
CLAUDE.md/README/tutorial: optional BS_ENABLE_DIGILENT backend, why
SMT2 modules need libdjtg, and the new jtag_open_probe index. Mark
phases 2 and 2.5 done.
2026-05-23 12:07:26 +02:00
1febae7377 doc: add end-to-end tutorial
doc/tutorial.md walks from probe detection to JEDEC ID over EXTEST and
forward-references the BSCAN proxy path. Includes:
- prerequisites and build/launch
- chain scan, FPGA identification, registry lookup
- IR/DR primitive sanity check via the IDCODE register
- SPI JEDEC ID over EXTEST (with the speed caveat)
- recipe to add a new FPGA target
- troubleshooting cheat sheet

README and CLAUDE.md updated to point at it.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-20 23:11:15 +02:00