import: pb5700_sdk-FPGA package

Examples/system/sys_exception/readme.md

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+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)
+
+    ```