35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
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# -*- coding: utf-8 -*-
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"""Pack the built bootloader into project/src/AT32F403ARCT7_BOOT.c."""
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import os
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ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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BIN = os.path.join(
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ROOT,
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"AT32F403ARCT7_BOOT",
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"project",
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"IAR_V7.4",
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"AT32F403ARCT7_BOOT",
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"Exe",
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"AT32F403ARCT7_BOOT.bin",
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)
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OUT = os.path.join(ROOT, "project", "src", "AT32F403ARCT7_BOOT.c")
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data = open(BIN, "rb").read()
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if len(data) > 0x8000:
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raise SystemExit("boot image %d exceeds 32KB" % len(data))
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print("binsize", len(data), data[:16].hex())
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print("nvm addr hits", data.find(bytes([0x00, 0xFC, 0x03, 0x08])))
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pad = data + bytes([0xFF]) * (0x8000 - len(data))
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lines = [
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"#ifdef BOOT",
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'#pragma location=".boot"',
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"__root const unsigned char FW_BOOT[0x8000] = {",
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]
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for i in range(0, 0x8000, 16):
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chunk = ", ".join("0x%02X" % b for b in pad[i : i + 16])
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lines.append("\t\t" + chunk + ",")
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text = "\n".join(lines)
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text = text[:-1] + "\n};\n\n\n#endif\n"
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open(OUT, "w", encoding="latin1", newline="\n").write(text)
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print("wrote", OUT, "chars", len(text))
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