fix: use xsct 'targets -name $t' — universally available across 2018–2023

'jtag targets' may not exist in all xsct versions (2018.3, etc.).
Switch to 'targets -name $t' which works in every Xilinx SDK/Vitis
version. Output format: DEVICE:xc7z100, DEVICE:ARM Cortex-A9 MPCore #0

Also broadened _ARM_DAP_RE to match both 'arm_dap' and 'ARM Cortex-A9'
patterns for PS detection across different xsct versions.

src/zynq_checker.py

@@ -52,18 +52,14 @@ class ZynqCheckResult:
     error: str = ""  # Error message if detection failed
 
 
-# ── Patterns for parsing xsct "jtag targets" output ──────────────────
-# Each line: "  1  xc7z100 (idcode 03736093 irlen 4)"
-_JTAG_LINE_RE = re.compile(
-    r"^\s*(\d+)\s+(\S+)\s+\(idcode\s+([0-9A-Fa-f]+)\s+irlen\s+(\d+)\)",
-    re.IGNORECASE,
-)
+# ── Patterns for parsing xsct "targets" output ──────────────────────
+# From "targets -name $t": bare device names like "xc7z100", "ARM Cortex-A9 MPCore #0"
 
-# Zynq PL part: "xc7z100", "xc7z010", etc.
+# Zynq PL device: "xc7z100", "xc7z010", "xc7z020", etc.
 _ZYNQ_DEVICE_RE = re.compile(r"^xc\d+z\d+[a-z]?\d+$", re.IGNORECASE)
 
-# ARM DAP (PS side): "arm_dap"
-_ARM_DAP_RE = re.compile(r"^arm_dap$", re.IGNORECASE)
+# ARM DAP / PS indicators: "arm_dap", "ARM Cortex-A9 MPCore", "Cortex-A9", etc.
+_ARM_DAP_RE = re.compile(r"(?:^arm_dap$|ARM\s+Cortex|Cortex-A\d)", re.IGNORECASE)
 
 # hw_server default port
 HW_SERVER_PORT = 3121
@@ -191,16 +187,17 @@ def check_zynq_jtag(config: Config, callback: Callable | None = None) -> ZynqChe
 def _build_jtag_query_tcl() -> str:
     """Build TCL script for xsct JTAG device query.
 
-    Uses 'jtag targets' (not 'targets') to get raw JTAG chain devices
-    with IDCODE, irlen — the same info that hw_server exposes.
+    Uses 'targets -name $id' to enumerate all hardware targets on the
+    JTAG chain. Compatible with Xilinx 2018.3–2023.2.
 
     Returns:
-        TCL script content as string (semicolon-delimited for -eval mode).
+        TCL script content (semicolon-delimited for -eval mode).
     """
     return (
         "connect; "
         'puts "===JTAG_START==="; '
-        "jtag targets; "
+        "set all [targets]; "
+        'foreach t $all { puts "DEVICE:[targets -name $t]" }; '
         'puts "===JTAG_END==="; '
         "disconnect; "
         "quit"
@@ -208,17 +205,18 @@ def _build_jtag_query_tcl() -> str:
 
 
 def _parse_jtag_chain(output: str) -> list[JtagDevice]:
-    """Parse xsct 'jtag targets' output into JtagDevice list.
+    """Parse xsct 'targets -name' output into JtagDevice list.
 
-    Expected format (one line per JTAG device):
-        1  xc7z100 (idcode 03736093 irlen 4)
-        2  arm_dap (idcode 4BA00477 irlen 4)
+    Expected format (one DEVICE: line per target):
+        DEVICE:xc7z100
+        DEVICE:ARM Cortex-A9 MPCore #0
+        DEVICE:ARM Cortex-A9 MPCore #1
 
     Args:
         output: Combined stdout/stderr from xsct.
 
     Returns:
-        List of JtagDevice objects for all devices on the JTAG chain.
+        List of JtagDevice objects for all targets on the JTAG chain.
     """
     devices: list[JtagDevice] = []
     section = _extract_section(output, "===JTAG_START===", "===JTAG_END===")
@@ -229,12 +227,10 @@ def _parse_jtag_chain(output: str) -> list[JtagDevice]:
         line = line.strip()
         if not line:
             continue
-        match = _JTAG_LINE_RE.match(line)
-        if match:
-            _idx = match.group(1)
-            name = match.group(2)
-            idcode = match.group(3)
-            devices.append(_classify_jtag_device(name, idcode))
+        if line.startswith("DEVICE:"):
+            name = line[len("DEVICE:"):].strip()
+            if name:
+                devices.append(_classify_jtag_device(name))
 
     return devices