François
37efccaf50
The module outgrew its "SPI bridge" name — it's mostly generic single-device JTAG TAP primitives now. Rename modules/bscan_spi -> modules/bscan (dir, files, library target, includes, doc paths); bscan_* function names and bscan_spi_xfer() kept. Add the two primitives the SVF player needs beyond shift_dr: - bscan_shift_ir: general IR scan with TDO capture (bscan_set_ir is opcode-only, no readback) - bscan_tap_reset: force Test-Logic-Reset, land in Run-Test/Idle Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
19 lines
775 B
Markdown
19 lines
775 B
Markdown
# BSCAN proxy bitstreams
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Pre-built "BSCAN proxy" bitstreams that bridge the JTAG `USER1`
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instruction to an FPGA's SPI flash pins (via a `BSCANE2` primitive),
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enabling fast SPI flashing — see `doc/tutorial.md`, Phase 2.5.
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These `.bit` files are **not** built here. They come from
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[quartiq/bscan_spi_bitstreams](https://github.com/quartiq/bscan_spi_bitstreams),
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© QUARTIQ GmbH, MIT-licensed — see `LICENSE.quartiq`. The host-side
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framing in `modules/bscan/` matches OpenOCD's `jtagspi` so the same
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bitstreams work.
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| File | Part | Used by |
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|------|------|---------|
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| `bscan_spi_xcku040.bit` | Xilinx Kintex UltraScale XCKU040 | KCU105 |
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To add another part, drop the matching `bscan_spi_<part>.bit` here and
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point the registry entry's `proxy_bitstream` field at it.
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