0e224393f7
First per-board binary. rust/pm-kit/ is a minimal rp235x-hal firmware that blinks GP25 on the Pico 2 — proves the toolchain, RP2350 boot block (ImageDef), memory layout, and flash before we add any drivers. - src/main.rs + memory.x + build.rs + .cargo/config.toml: rp235x-hal blink, builds for thumbv8m.main-none-eabihf. - build.sh + uf2.py: one command builds the ELF in the container, objcopies to a raw image, and packs pm-kit.uf2 (rp2350-arm-s family). Drag onto the Pico 2 in BOOTSEL. Verified: builds clean; produces a valid 6-block UF2. Runtime (does it blink?) is the on-device check. Next: drivers (display first) + link pm-core. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
27 lines
929 B
Python
27 lines
929 B
Python
#!/usr/bin/env python3
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"""Pack a raw RP2350 flash image (objcopy -O binary output) into a UF2.
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Family rp2350-arm-s (0xe48bff59), flash base 0x10000000. Usage:
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python3 uf2.py pm-kit.bin pm-kit.uf2
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"""
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import struct
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import sys
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BASE = 0x10000000
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FAMILY = 0xE48BFF59 # rp2350-arm-s
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src = sys.argv[1] if len(sys.argv) > 1 else "pm-kit.bin"
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out = sys.argv[2] if len(sys.argv) > 2 else "pm-kit.uf2"
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data = open(src, "rb").read()
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chunks = [data[i:i + 256] for i in range(0, len(data), 256)] or [b""]
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n = len(chunks)
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with open(out, "wb") as f:
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for i, c in enumerate(chunks):
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c = c.ljust(256, b"\x00")
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blk = struct.pack("<IIIIIIII", 0x0A324655, 0x9E5D5157, 0x00002000,
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BASE + i * 256, 256, i, n, FAMILY)
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blk += c + b"\x00" * (476 - 256) + struct.pack("<I", 0x0AB16F30)
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assert len(blk) == 512
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f.write(blk)
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print(f"{out}: {n} blocks, {len(data)} bytes payload")
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