diff --git a/assets/User_code/.DS_Store b/assets/User_code/.DS_Store
index 0b7a85f..aa72674 100644
Binary files a/assets/User_code/.DS_Store and b/assets/User_code/.DS_Store differ
diff --git a/assets/User_code/bsp/pwm.c b/assets/User_code/bsp/pwm.c
index 3183e4c..6838d74 100644
--- a/assets/User_code/bsp/pwm.c
+++ b/assets/User_code/bsp/pwm.c
@@ -1,9 +1,8 @@
 /* Includes ----------------------------------------------------------------- */
+#include "tim.h"
 #include "bsp/pwm.h"
 #include "bsp.h"
 
-#include <tim.h>
-
 /* Private define ----------------------------------------------------------- */
 /* Private macro ------------------------------------------------------------ */
 /* Private typedef ---------------------------------------------------------- */
diff --git a/assets/User_code/bsp/pwm.h b/assets/User_code/bsp/pwm.h
index 35f55d7..a1fa3c9 100644
--- a/assets/User_code/bsp/pwm.h
+++ b/assets/User_code/bsp/pwm.h
@@ -6,15 +6,13 @@ extern "C" {
 
 /* Includes ----------------------------------------------------------------- */
 #include <stdint.h>
-
+#include "tim.h"
 #include "bsp.h"
 
+
 /* Exported constants ------------------------------------------------------- */
 /* Exported macro ----------------------------------------------------------- */
 /* Exported types ----------------------------------------------------------- */
-/* Forward declarations */
-typedef struct __TIM_HandleTypeDef TIM_HandleTypeDef;
-
 /* PWM通道 */
 typedef enum {
 /* AUTO GENERATED BSP_PWM_ENUM */
diff --git a/assets/User_code/device/buzzer.h b/assets/User_code/device/buzzer.h
index 7553070..3939e23 100644
--- a/assets/User_code/device/buzzer.h
+++ b/assets/User_code/device/buzzer.h
@@ -19,7 +19,6 @@ typedef struct {
 
 /* Exported functions prototypes -------------------------------------------- */
 
-
 int8_t BUZZER_Init(BUZZER_t *buzzer, BSP_PWM_Channel_t channel);