39 lines
1.0 KiB
Python
39 lines
1.0 KiB
Python
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#!/usr/bin/env python3
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"""
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Flash a LambdaConcept Squirrel/Screamer (Artix-7 75T) with usbloader.
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Usage:
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sudo python3 flash_fpga.py output/firmware.bin
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Needs:
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• usbloader binary in $PATH (https://docs.lambdaconcept.com/screamer/programming.html)
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• Board in JTAG/flash-mode (default power-on state)
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"""
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import argparse
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import pathlib
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import shutil
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import subprocess
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import sys
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def run(cmd):
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print(f"[flash] {cmd}")
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subprocess.run(cmd, shell=True, check=True)
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if __name__ == "__main__":
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p = argparse.ArgumentParser()
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p.add_argument("bitfile", help=".bin produced by build.py")
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args = p.parse_args()
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if shutil.which("usbloader") is None:
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sys.exit("usbloader not found in PATH. Install it and retry.")
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bit = pathlib.Path(args.bitfile).resolve()
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if not bit.exists():
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sys.exit(f"File not found: {bit}")
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# Screamer/Squirrel default VID:PID = 1d50:6130
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run(f"usbloader --vidpid 1d50:6130 -f {bit}")
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print("[✓] Flash complete – power-cycle or warm-reset the card.")
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