diff --git a/Src/command.c b/Src/command.c
index a859227..95af534 100644
--- a/Src/command.c
+++ b/Src/command.c
@@ -285,18 +285,11 @@ void handle_command(const uint8_t *frame, uint8_t len) {
             //     return;
 
             case 999u: //M999: 输出固件版本号（vMCU_CODE.FW_VERSION_MAJOR.FW_VERSION_MINOR.FW_VERSION_PATCH）
-                {
-                    char version_str[16];
-                    int n = snprintf(version_str, sizeof(version_str), "v%u.%u.%u.%u", 
-                                     MCU_CODE, FW_VERSION_MAJOR, FW_VERSION_MINOR, FW_VERSION_PATCH);
-                    if (n > 0 && n < sizeof(version_str)) {
-                        send_response(RESP_TYPE_OK, (uint8_t *)version_str, (uint8_t)n);
-                    } else {
-                        send_response(RESP_TYPE_DATA_ERR, s_report_status_err, sizeof(s_report_status_err));
-                    }
-                    // send_response(RESP_TYPE_OK, (uint8_t *)"v23.0.0.3", 9);
-                }
-
+                char version_str[16];
+                int n = snprintf(version_str, sizeof(version_str), "v%u.%u.%u.%u", MCU_CODE, FW_VERSION_MAJOR, FW_VERSION_MINOR, FW_VERSION_PATCH);
+                send_response(RESP_TYPE_OK, (uint8_t *)version_str, (uint8_t)n);
+                // send_response(RESP_TYPE_OK, (uint8_t *)"v23.0.0.3", 9);
+                return;
 
             default:
                 // 其它无参数命令在此扩展（示例：M100）处理逻辑该如何待定
diff --git a/Src/main.c b/Src/main.c
index a02b191..24a11ab 100644
--- a/Src/main.c
+++ b/Src/main.c
@@ -51,6 +51,8 @@ OF SUCH DAMAGE.
 */
 int main(void)
 {
+    nvic_vector_table_set(NVIC_VECTTAB_FLASH, 0x2000); // 设置向量表偏移地址为0x2000
+
     led_init();
     mcu_detect_and_config();