protect read flash only for release

user/main.c

@@ -46,6 +46,7 @@ int main()
 	FLASH_ClearFlag(FLASH_FLAG_PGPERR);
 	FLASH_ClearFlag(FLASH_FLAG_PGSERR);
 
+#ifndef DEBUG
 	if (FLASH_OB_GetRDP() != SET) {
 		FLASH_Unlock();                           // this line is critical!
 		FLASH_OB_Unlock();
@@ -54,6 +55,7 @@ int main()
 		FLASH_OB_Lock();
 		FLASH_Lock();
 	}
+#endif
 
 	gpio_init();