sys_exception
---

This example is a demo project to trigger exception event with software

+ It will register the exception handlers (ecall) from App layer

+ Trigger exception event with instructions (ecall)

    ```c
    // at main.c
    __ECALL();
    ```

## Log

Use serial port with baudrate 115200, 8bit, no parity check.

+ `ecall`

    ```
    Jul 17 2025 10:05:43
    Software triggers exception event
      => enter ecall handler (cause= 11)

    ```