Myfro9andClaude Opus 4.8
88f96fa5fa
The Vivado install root differs per machine (C:\Xilinx here, D:\Xilinx on the box these skills were written on), so every hardcoded path was already wrong on this machine. - new fpga_flash/scripts/vivado_env.py: resolves --vivado-dir > env var > VIVADO_ROOT (falling back to VIVADO_PATH) from ~/skills_env.md - gen_mcs / program_flash / check_flash_csv: --vivado-dir now optional - fpga_update/gen_update_mcs.py: same precedence for --vivado - fpga_flash / smod_atsc_dev / vivado-prj-create SKILL.md: document the lookup instead of naming a drive letter - skills_env template: VIVADO_ROOT/VIVADO_PATH are now blanks to fill in, so a new machine can't inherit a wrong default Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
90 lines
2.5 KiB
Python
90 lines
2.5 KiB
Python
#!/usr/bin/env python3
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"""
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Step 3: Generate .mcs configuration memory file using Vivado batch mode.
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Calls Vivado with step3_write_mcs.tcl (located in the same scripts/ directory)
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via -tclargs so no temporary script files are created.
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Usage:
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python gen_mcs.py \
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--bit-file "E:/project/RU_golden/RU_golden.runs/impl_1/RU_golden_top.bit" \
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--mcs-file "E:/project/RU_golden/RU_golden.runs/impl_1/RU_golden_smod.mcs"
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Exit codes:
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0 = success ("write_cfgmem completed successfully" in output)
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1 = failure
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"""
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import argparse
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import os
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import subprocess
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import sys
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from vivado_env import resolve_vivado_dir
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def norm(path: str) -> str:
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"""Normalize path to forward slashes (Vivado on Windows accepts both)."""
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return path.replace("\\", "/")
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def main():
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parser = argparse.ArgumentParser(
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description="Generate .mcs from .bit via Vivado write_cfgmem"
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)
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parser.add_argument(
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"--vivado-dir",
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default=None,
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help="Vivado install root; defaults to VIVADO_ROOT from ~/skills_env.md",
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)
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parser.add_argument(
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"--bit-file",
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required=True,
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help="Full path to the .bit file",
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)
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parser.add_argument(
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"--mcs-file",
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required=True,
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help="Full path for the output .mcs file",
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)
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args = parser.parse_args()
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vivado_dir = norm(resolve_vivado_dir(args.vivado_dir))
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bit_file = norm(args.bit_file)
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mcs_file = norm(args.mcs_file)
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# Locate the TCL template alongside this script
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scripts_dir = os.path.dirname(os.path.abspath(__file__))
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tcl_template = os.path.join(scripts_dir, "step3_write_mcs.tcl").replace("\\", "/")
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# Validate inputs
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vivado_exe = os.path.join(vivado_dir, "bin", "vivado.bat")
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if not os.path.isfile(vivado_exe):
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print(f"ERROR: Vivado not found: {vivado_exe}", file=sys.stderr)
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sys.exit(1)
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if not os.path.isfile(bit_file):
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print(f"ERROR: .bit file not found: {bit_file}", file=sys.stderr)
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sys.exit(1)
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if not os.path.isfile(tcl_template):
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print(f"ERROR: TCL template not found: {tcl_template}", file=sys.stderr)
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sys.exit(1)
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cmd = [
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vivado_exe,
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"-mode", "batch",
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"-source", tcl_template,
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"-tclargs", bit_file, mcs_file,
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]
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print(f"[gen_mcs] Vivado: {vivado_exe}")
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print(f"[gen_mcs] bit : {bit_file}")
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print(f"[gen_mcs] mcs : {mcs_file}")
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print()
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result = subprocess.run(cmd)
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sys.exit(result.returncode)
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if __name__ == "__main__":
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main()
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