make sure io has 2 rt cores also

Author: zschafft-intel

src/hde2e.py

@@ -83,7 +83,10 @@ def _realtime_core_io(self, instance_num: str) -> Optional[str]:
         # Example mapping: IO_PLC_01 → cores 8-11, IO_PLC_02 → cores 12-15
         t_cpus = self.config.demo.io_system.get("t_cpus")
         t_cpus = t_cpus.split(",")
-        return str(t_cpus[instance_num - 1])
+        if len(t_cpus) < 2:
+            print("[WARN] Not enough t_cpus specified for io_system. Expected at least 2.")
+            return None
+        return str(t_cpus[int(instance_num) - 1])
     #  Low-level helpers
     @staticmethod
     def _run_command(cmd: List[str], capture: bool = False) -> subprocess.CompletedProcess: