fix：函数startup关闭中断

MSTLibraries/SelfTestLib/src/STLstartup.c

@@ -140,7 +140,7 @@ void FailSafePOR(void)
  void STL_StartUp(void)
 {
 #if CHIP_FAULT_DETECTION == 1
-
+    __disable_irq();
     /*----------------------------------------------------------------------*/
     /*---------------------------- CPU registers ---------------------------*/
     /*----------------------------------------------------------------------*/