修复编译速度慢的问题

bsp/bsp_led.c

@@ -2,7 +2,7 @@
 #include "main.h"
 
 extern TIM_HandleTypeDef htim5;
-static tmp_output_level = 0;
+static uint8_t tmp_output_level = 0;
 
 void LED_init()
 {

bsp/struct_typedef.h

@@ -1,6 +1,11 @@
 #ifndef STRUCT_TYPEDEF_H
 #define STRUCT_TYPEDEF_H
 
+
+#ifndef __PACKED
+#define __packed __attribute__((pakced))
+#endif // !__PACKED
+
 typedef signed char int8_t;
 typedef signed short int int16_t;