refactor: replace all config.vitis_path with config.xilinx_path across codebase

Affected files:
- flash_programmer.py (2 call sites) — get_program_flash_path
- bitstream_programmer.py (3 get_xsct_path + 1 get_vivado_path call sites)
  Also: removed duplicate _get_vivado_path() (now uses shared one from vitis_checker)
  Also: removed unused shutil import
- reboot_manager.py (1 call site) — get_xsct_path

All now use getattr(config, 'xilinx_path', '') consistently.
The only remaining 'config.vitis_path' reference is in vitis_checker.py's
check_vitis() itself (safe legacy fallback for old configs).

src/bitstream_programmer.py

@@ -11,14 +11,13 @@ Compatible with Xilinx 2018.3 — 2023.2.
 from __future__ import annotations
 
 import os
-import shutil
 import subprocess
 from dataclasses import dataclass
 from pathlib import Path
 from typing import Callable
 
 from config_manager import Config
-from vitis_checker import get_xsct_path
+from vitis_checker import get_xsct_path, get_vivado_path
 
 # ── Types ───────────────────────────────────────────────────────────
 
@@ -38,35 +37,6 @@ ProgressCallback = Callable[[str, str], None] | None
 # ── Helpers ─────────────────────────────────────────────────────────
 
 
-def _get_vivado_path(vitis_path: str) -> str | None:
-    """Find the Vivado executable.
-
-    Uses shutil.which() for PATH resolution, then common install paths.
-
-    Args:
-        vitis_path: Optional Vitis installation directory.
-
-    Returns:
-        Path to vivado executable, or None.
-    """
-    found = shutil.which("vivado")
-    if found:
-        return found
-    if vitis_path:
-        candidate = Path(vitis_path) / "bin" / "vivado"
-        if candidate.is_file():
-            return str(candidate)
-    common = [
-        "/data/xilinx/Vivado/2023.2/bin/vivado",
-        "/opt/xilinx/bin/vivado",
-        os.path.expanduser("~/Xilinx/Vivado/2023.2/bin/vivado"),
-    ]
-    for p in common:
-        if os.path.isfile(p):
-            return p
-    return None
-
-
 def _find_ps7_init_tcl(config: Config) -> str:
     """Find the ps7_init.tcl file for PS initialization.
 
@@ -167,16 +137,15 @@ def program_bitstream(
 
     # Try xsct first (preferred)
     xsct = get_xsct_path(
-        vitis_path=config.vitis_path if hasattr(config, 'vitis_path') else "",
+        xilinx_root=getattr(config, "xilinx_path", ""),
-        xilinx_root=config.xilinx_path if hasattr(config, 'xilinx_path') else "",
     )
     if xsct:
         timeout = config.step_timeouts.get("bitstream", 60)
         return _program_with_xsct(xsct, bit_path, callback, ps7_tcl, timeout)
 
     # Fallback to Vivado
-    vivado = _get_vivado_path(
+    vivado = get_vivado_path(
-        config.vitis_path if hasattr(config, 'vitis_path') else ""
+        xilinx_root=getattr(config, "xilinx_path", ""),
     )
     if vivado:
         return _program_with_vivado(vivado, bit_path, callback)
@@ -364,8 +333,7 @@ def run_elf(
         callback("start", f"Running ELF: {elf_path.name}...")
 
     xsct = get_xsct_path(
-        vitis_path=config.vitis_path if hasattr(config, 'vitis_path') else "",
+        xilinx_root=getattr(config, "xilinx_path", ""),
-        xilinx_root=config.xilinx_path if hasattr(config, 'xilinx_path') else "",
     )
     if not xsct:
         return BitstreamResult(
@@ -579,8 +547,7 @@ def full_bitstream_program(
                 message=f"FSBL not found: {fsbl_path or '(not configured)'}")]
 
     xsct = get_xsct_path(
-        vitis_path=config.vitis_path if hasattr(config, 'vitis_path') else "",
+        xilinx_root=getattr(config, "xilinx_path", ""),
-        xilinx_root=config.xilinx_path if hasattr(config, 'xilinx_path') else "",
     )
     if not xsct:
         return [BitstreamResult(step="bitstream", success=False,

src/flash_programmer.py

@@ -113,8 +113,7 @@ def wipe_flash(
         FlashResult with status.
     """
     flash_tool = get_program_flash_path(
-        vitis_path=config.vitis_path if hasattr(config, 'vitis_path') else "",
+        xilinx_root=getattr(config, "xilinx_path", ""),
-        xilinx_root=config.xilinx_path if hasattr(config, 'xilinx_path') else "",
     )
     if not flash_tool:
         return FlashResult(
@@ -229,8 +228,7 @@ def program_flash_bin(
         )
 
     flash_tool = get_program_flash_path(
-        vitis_path=config.vitis_path if hasattr(config, 'vitis_path') else "",
+        xilinx_root=getattr(config, "xilinx_path", ""),
-        xilinx_root=config.xilinx_path if hasattr(config, 'xilinx_path') else "",
     )
     if not flash_tool:
         return FlashResult(

src/gui/main_window.py

@@ -1144,15 +1144,23 @@ class MainWindow(ctk.CTk):
 
         # Wait for board to boot — UART if available, else config delay
         boot_delay = self._config.boot_wait_delay
-        uart_alive = (self._uart_monitor is not None
+        # Check both main monitor and UART window monitor
-                      and self._uart_monitor.is_running())
+        uart_alive = False
+        _uart_src = None  # source of latest_info
+        if self._uart_monitor and self._uart_monitor.is_running():
+            uart_alive = True
+            _uart_src = self._uart_monitor
+        elif (self._uart_window and self._uart_window.winfo_exists()
+              and self._uart_window.is_monitoring):
+            uart_alive = True
+            _uart_src = self._uart_window
         discovered_ip: str = ""
-        if uart_alive:
+        if uart_alive and _uart_src:
             self._log_message(f"  ⏳ Waiting for UART boot signal (max {boot_delay}s)...")
             elapsed = 0.0
             while elapsed < boot_delay:
-                info = self._uart_monitor.latest_info
+                info = _uart_src.latest_info if hasattr(_uart_src, 'latest_info') else _uart_src.get_latest_info()
-                if info.ip_address or info.version:
+                if info and (info.ip_address or info.version):
                     self._log_message(
                         f"  ✓ Boot detected after {elapsed:.1f}s"
                         f" (IP={info.ip_address}, Ver={info.version})"

src/gui/widgets.py

@@ -1190,6 +1190,12 @@ class UartMonitorWindow(ctk.CTkToplevel):
         """True if the UART monitor thread is currently running."""
         return self._monitor is not None and self._monitor.is_running()
 
+    def get_latest_info(self):
+        """Return latest parsed BootInfo from the UART monitor, or None."""
+        if self._monitor:
+            return self._monitor.latest_info
+        return None
+
     def _on_close(self) -> None:
         """Cleanup UartMonitor and destroy window."""
         if self._monitor:

src/reboot_manager.py

@@ -186,8 +186,7 @@ def reboot_via_jtag(
     from vitis_checker import get_xsct_path
 
     xsct = get_xsct_path(
-        vitis_path=config.vitis_path if hasattr(config, 'vitis_path') else "",
+        xilinx_root=getattr(config, "xilinx_path", ""),
-        xilinx_root=config.xilinx_path if hasattr(config, 'xilinx_path') else "",
     )
     if not xsct:
         return RebootResult(

src/vitis_checker.py

@@ -317,6 +317,19 @@ def get_bootgen_path(vitis_path: str = "", xilinx_root: str = "") -> str | None:
     return _find_executable("bootgen", vitis_path, platform.system().lower(), xilinx_root)
 
 
+def get_vivado_path(vitis_path: str = "", xilinx_root: str = "") -> str | None:
+    """Find the Vivado executable (JTAG operations via hw_server).
+
+    Args:
+        vitis_path: Legacy Vitis installation directory.
+        xilinx_root: Xilinx root directory.
+
+    Returns:
+        Path to vivado executable, or None.
+    """
+    return _find_executable("vivado", vitis_path, platform.system().lower(), xilinx_root)
+
+
 # ── Tool version detection ───────────────────────────────────────────
 
 

src/zynq_checker.py

@@ -10,13 +10,13 @@ from __future__ import annotations
 
 import os
 import re
-import shutil
 import subprocess
 from dataclasses import dataclass, field
 from pathlib import Path
 from typing import Callable
 
 from config_manager import Config
+from vitis_checker import get_vivado_path, build_tool_command
 
 
 @dataclass
@@ -86,9 +86,10 @@ def check_zynq_jtag(config: Config, callback: Callable | None = None) -> ZynqChe
     if callback:
         callback("start", "Connecting to hw_server...")
 
-    # Find vivado executable
+    # Find vivado executable via Xilinx root scan
-    vivado_path = _get_vivado_path(
+    vivado_path = get_vivado_path(
-        config.vitis_path if hasattr(config, 'vitis_path') else ""
+        vitis_path=getattr(config, "vitis_path", ""),
+        xilinx_root=getattr(config, "xilinx_path", ""),
     )
     if not vivado_path:
         return ZynqCheckResult(
@@ -110,8 +111,8 @@ def check_zynq_jtag(config: Config, callback: Callable | None = None) -> ZynqChe
         if callback:
             callback("progress", "Scanning JTAG chain...")
 
-        # Run Vivado in batch mode
+        # Run Vivado in batch mode (with environment setup)
-        cmd = [vivado_path, "-mode", "batch", "-source", str(tcl_path)]
+        cmd = build_tool_command(vivado_path, "-mode", "batch", "-source", str(tcl_path))
         result = subprocess.run(
             cmd,
             capture_output=True,
@@ -322,35 +323,6 @@ def _parse_zynq_device(device_name: str) -> ZynqDevice | None:
     )
 
 
-def _get_vivado_path(vitis_path: str) -> str | None:
-    """Find the Vivado executable path.
-
-    Args:
-        vitis_path: Vitis installation path.
-
-    Returns:
-        Path to Vivado executable, or None if not found.
-    """
-    path = shutil.which("vivado")
-    if path:
-        return path
-    if vitis_path:
-        candidate = Path(vitis_path) / "bin" / "vivado"
-        if candidate.exists():
-            return str(candidate)
-        candidate = Path(vitis_path) / "bin" / "vivado.exe"
-        if candidate.exists():
-            return str(candidate)
-    common_paths = [
-        "/opt/xilinx/bin/vivado",
-        os.path.expanduser("~/Xilinx/Vivado/bin/vivado"),
-    ]
-    for p in common_paths:
-        if os.path.isfile(p):
-            return p
-    return None
-
-
 def get_zynq_status_dict(result: ZynqCheckResult) -> dict:
     """Convert a ZynqCheckResult to a serializable dictionary.