STM32F446RE Debugger Termination (Exit Value 0) and .elf File Permission Denied
- February 15, 2026
- 3 replies
- 424 views
1. Environment Details
Board: NUCLEO-F446RE (Cortex-M4)
IDE: STM32CubeIDE Version 2.0.0
Debugger: Integrated ST-LINK/V2-1
Firmware Version: V2J46M33
OS: Windows (Process path: C:\Users\salai\...)
2. Problem Description
I am encountering a persistent debugger crash where the session terminates immediately after launch. Additionally, I am unable to rebuild the project due to a file lock on the .elf binary.
Symptom A: Debugger Disconnection Upon clicking the "Debug" button, the console shows the GDB server starting, but it immediately terminates with: arm-none-eabi-gdb <terminated, exit value: 0> ST-LINK (ST-LINK GDB server) <terminated, exit value: 0>
Symptom B: Build Error When attempting a "Clean" or "Build," the console reports: rm: can't remove '1_SYSTICK_TIMER.elf': Permission denied make: [makefile:79: clean] Error 1 (ignored)
Symptom C: No Source Available After a full chip erase, the debugger points to 0xfffffffe with the message: No source available for "<signal handler called>() at 0xfffffffe"
3. Steps Taken to Resolve
Updated ST-LINK firmware to the latest version.
Attempted "Connect Under Reset" in the Debug Configuration settings.
Performed a "Full Chip Erase" using STM32CubeProgrammer.
Disabled "Parallel Build" to avoid race conditions during the make process.
Verified hardware jumpers are in the default positions.
Current Issues:
Debugger: Terminates instantly upon launch.
Build: Receiving Permission denied errors for the .elf file during Clean/Build.
Recovery: After a full chip erase, the debugger points to 0xfffffffe.
What I need help with:
How can I reset all my Debug/Run configurations to the default state?
Why is my GDB server shutting down immediately after a successful verify?
How do I break the "Permission Denied" lock on my build files?
