🐛 fix(xsct): TCL file instead of -eval, add ps7_init, remove broken Vivado ELF path
Fixes found during real hardware test: bitstream_programmer.py: - _program_with_xsct: use TCL file instead of xsct -eval (quit→exit fix) - _run_elf_with_xsct: add reconnect + source ps7_init.tcl after PL config, use target ID 2 instead of name filter, TCL file instead of -eval - _find_ps7_init_tcl: auto-detect ps7_init.tcl from BIT file directory - run_elf: remove Vivado fallback (program_hw_cpu is xsct, not Vivado) - Remove dead _run_elf_with_vivado (Vivado HM can't program PS CPU) flash_programmer.py: - wipe_flash: -erase_only without -erase_all (s25fl256s1 compat fix)
This commit is contained in:
Jeremy Shen
+101
-88
@@ -67,6 +67,38 @@ def _get_vivado_path(vitis_path: str) -> str | None:
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return None
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def _find_ps7_init_tcl(config: Config) -> str:
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"""Find the ps7_init.tcl file for PS initialization.
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Checks:
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1. Same directory as bootloader BIT file (hw_platform)
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2. ps7_init_tcl_path in config (if added later)
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Args:
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config: Application configuration.
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Returns:
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Path to ps7_init.tcl, or empty string if not found.
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"""
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# 1. Check config attribute (if added)
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if hasattr(config, 'ps7_init_tcl_path') and config.ps7_init_tcl_path:
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p = Path(config.ps7_init_tcl_path)
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if p.exists():
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return str(p)
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# 2. Same directory as BIT file (typical hw_platform layout)
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if config.bootloader_bit_path:
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bit_dir = Path(config.bootloader_bit_path).parent
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candidates = [
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bit_dir / "ps7_init.tcl",
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]
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for c in candidates:
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if c.exists():
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return str(c)
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return ""
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def _run_command(
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cmd: list[str],
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timeout: int = 120,
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@@ -172,21 +204,35 @@ def _program_with_xsct(
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if callback:
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callback("progress", "Using xsct to download bitstream...")
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# xsct TCL script: connect to hw_server, target FPGA, download bitstream
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# xsct TCL: connect to hw_server, target FPGA, download bitstream
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tcl_script = f"""
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connect
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targets
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fpga -file "{bit_path}"
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quit
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exit
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"""
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import tempfile, os
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with tempfile.NamedTemporaryFile(mode='w', suffix='.tcl', delete=False) as f:
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f.write(tcl_script)
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tcl_file = f.name
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try:
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result = _run_command(
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[xsct_path, "-eval", tcl_script],
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result = subprocess.run(
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[xsct_path, tcl_file],
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capture_output=True,
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text=True,
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timeout=120,
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callback=callback,
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)
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os.unlink(tcl_file)
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success = result.returncode == 0
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output = (result.stdout + result.stderr).strip()
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if callback:
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callback(
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"complete" if success else "error",
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"Bitstream " + ("loaded" if success else "failed"),
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)
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return BitstreamResult(
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step="bitstream",
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success=success,
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@@ -194,6 +240,7 @@ quit
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output=output[:4000],
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)
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except subprocess.TimeoutExpired:
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os.unlink(tcl_file)
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return BitstreamResult(
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step="bitstream",
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success=False,
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@@ -282,37 +329,38 @@ def run_elf(
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if callback:
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callback("start", f"Running ELF: {elf_path.name}...")
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# Try xsct first (preferred)
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# Use xsct for CPU operations (Vivado HM cannot program PS CPU)
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xsct = get_xsct_path(config.vitis_path)
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if xsct:
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return _run_elf_with_xsct(xsct, elf_path, callback)
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if not xsct:
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return BitstreamResult(
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step="elf",
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success=False,
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message="xsct not found in PATH (required for CPU operations)",
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)
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# Fallback to Vivado
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vivado = _get_vivado_path(config.vitis_path)
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if vivado:
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return _run_elf_with_vivado(vivado, elf_path, config, callback)
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return BitstreamResult(
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step="elf",
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success=False,
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message="Neither xsct nor vivado found in PATH",
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)
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# Auto-detect ps7_init.tcl from config or BIT file directory
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ps7_tcl = _find_ps7_init_tcl(config)
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return _run_elf_with_xsct(xsct, elf_path, callback, ps7_tcl)
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def _run_elf_with_xsct(
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xsct_path: str,
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elf_path: Path,
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callback: ProgressCallback = None,
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ps7_init_tcl: str = "",
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) -> BitstreamResult:
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"""Download and run ELF using xsct's dow command.
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xsct connects to hw_server, targets the first ARM Cortex-A9 core,
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downloads the ELF, and starts execution.
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After PL configuration (via fpga), the DAP may be disrupted.
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This function reconnects, sources ps7_init.tcl to initialize
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the PS, then downloads the ELF to Cortex-A9 #0.
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Args:
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xsct_path: Path to xsct executable.
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elf_path: Path to .elf file.
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callback: Optional progress callback.
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ps7_init_tcl: Path to ps7_init.tcl for PS initialization.
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Auto-detected from BIT file directory if empty.
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Returns:
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BitstreamResult with status.
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@@ -320,27 +368,45 @@ def _run_elf_with_xsct(
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if callback:
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callback("progress", "Using xsct to download ELF...")
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# xsct TCL: connect, target ARM core #0, download ELF
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tcl_script = f"""
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connect
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targets -set -filter {{name =~ "Cortex-A9 MPCore #0" || name =~ "ARM*#0"}}
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dow "{elf_path}"
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con
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quit
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"""
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# Build TCL: reconnect (DAP may be broken after PL config),
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# source ps7_init for PS init, then dow + con
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lines = ["connect"]
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if ps7_init_tcl and Path(ps7_init_tcl).exists():
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lines.append(f'source "{ps7_init_tcl}"')
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lines.append("ps7_init")
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lines.append("targets 2")
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lines.append(f'dow "{elf_path}"')
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lines.append("con")
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lines.append("exit")
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tcl_script = "\n".join(lines)
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import tempfile, os
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with tempfile.NamedTemporaryFile(mode='w', suffix='.tcl', delete=False) as f:
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f.write(tcl_script)
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tcl_file = f.name
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try:
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result = _run_command(
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[xsct_path, "-eval", tcl_script],
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timeout=60,
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callback=callback,
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result = subprocess.run(
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[xsct_path, tcl_file],
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capture_output=True,
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text=True,
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timeout=120,
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)
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os.unlink(tcl_file)
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success = result.returncode == 0
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output = (result.stdout + result.stderr).strip()
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# xsct may return non-zero even if download succeeded (common quirk)
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if "Target disconnected" in output and "Success" not in output:
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# xsct may return non-zero even if download succeeded
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if any(phrase in output for phrase in ("Download successful", "Done", "done")):
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success = True
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if callback:
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callback(
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"complete" if success else "error",
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"ELF " + ("executed" if success else "failed"),
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)
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return BitstreamResult(
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step="elf",
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success=success,
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@@ -348,6 +414,7 @@ quit
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output=output[:4000],
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)
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except subprocess.TimeoutExpired:
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os.unlink(tcl_file)
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return BitstreamResult(
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step="elf",
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success=False,
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@@ -355,60 +422,6 @@ quit
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)
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def _run_elf_with_vivado(
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vivado_path: str,
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elf_path: Path,
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config: Config,
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callback: ProgressCallback = None,
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) -> BitstreamResult:
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"""Download and run ELF using Vivado Hardware Manager.
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Args:
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vivado_path: Path to vivado executable.
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elf_path: Path to .elf file.
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config: Application configuration (for reboot_timeout).
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callback: Optional progress callback.
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Returns:
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BitstreamResult with status.
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"""
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if callback:
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callback("progress", "Using Vivado Hardware Manager for ELF...")
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run_timeout = config.reboot_timeout * 1000 if config.reboot_timeout else 30000
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tcl_content = f"""
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open_hw_manager
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connect_hw_server
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open_hw_target
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current_hw_device [lindex [get_hw_devices] 0]
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refresh_hw_device
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program_hw_cpu -data_file "{elf_path}"
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run_hw_cpu {run_timeout}
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quit
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"""
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tcl_path = elf_path.parent / "temp_run.tcl"
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try:
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with open(tcl_path, "w") as f:
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f.write(tcl_content)
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result = _run_command(
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[vivado_path, "-mode", "batch", "-source", str(tcl_path)],
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timeout=120,
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callback=callback,
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)
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success = result.returncode == 0
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output = (result.stdout + result.stderr).strip()
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return BitstreamResult(
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step="elf",
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success=success,
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message="ELF executed successfully" if success else "ELF execution failed",
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output=output[:4000],
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)
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finally:
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tcl_path.unlink(missing_ok=True)
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# ── Full Workflow ───────────────────────────────────────────────────
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