diff --git a/Core/Inc/main.h b/Core/Inc/main.h
index d784fff..ca5352e 100644
--- a/Core/Inc/main.h
+++ b/Core/Inc/main.h
@@ -176,6 +176,7 @@ void ISP_Judge();
 #define SYS_SWO_GPIO_Port GPIOB
 #define SOM_SYS_RESET_Pin GPIO_PIN_4
 #define SOM_SYS_RESET_GPIO_Port GPIOB
+#define SOM_SYS_RESET_EXTI_IRQn EXTI4_IRQn
 #define SOM_MOD_SLEEP_Pin GPIO_PIN_5
 #define SOM_MOD_SLEEP_GPIO_Port GPIOB
 #define IIC1_SCL_Pin GPIO_PIN_8
diff --git a/Core/Src/gpio.c b/Core/Src/gpio.c
index 424b57c..a3f8f32 100644
--- a/Core/Src/gpio.c
+++ b/Core/Src/gpio.c
@@ -6,7 +6,7 @@
   ******************************************************************************
   * @attention
   *
-  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
+  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
   * All rights reserved.</center></h2>
   *
   * This software component is licensed by ST under Ultimate Liberty license
@@ -79,9 +79,6 @@ void MX_GPIO_Init(void)
   /*Configure GPIO pin Output Level */
   HAL_GPIO_WritePin(GPIOD, SOM_SLEEP_WAKE_Pin|SOM_FORCE_RECOVERY_Pin, GPIO_PIN_SET);
 
-  /*Configure GPIO pin Output Level */
-  HAL_GPIO_WritePin(SOM_SYS_RESET_GPIO_Port, SOM_SYS_RESET_Pin, GPIO_PIN_SET);
-
   /*Configure GPIO pins : PEPin PEPin PEPin PEPin
                            PEPin */
   GPIO_InitStruct.Pin = SYS_POWER_LED_CTL_Pin|PMB_PS_ON_Pin|SYS_FAN_CTL_1_Pin|SYS_FAN_CTL_2_Pin
@@ -131,9 +128,9 @@ void MX_GPIO_Init(void)
   HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
 
   /*Configure GPIO pins : PBPin PBPin PBPin PBPin
-                           PBPin PBPin PBPin */
+                           PBPin PBPin */
   GPIO_InitStruct.Pin = IIC2_SCL_Pin|IIC2_SDA_Pin|USB2_VBUS_CTL_1_Pin|USB2_VBUS_CTL_2_Pin
-                          |USB2_VBUS_CTL_3_Pin|USB2_VBUS_CTL_4_Pin|SOM_SYS_RESET_Pin;
+                          |USB2_VBUS_CTL_3_Pin|USB2_VBUS_CTL_4_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
@@ -171,22 +168,18 @@ void MX_GPIO_Init(void)
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(SOM_SHUTDOWN_REQ_GPIO_Port, &GPIO_InitStruct);
 
+  /*Configure GPIO pin : PtPin */
+  GPIO_InitStruct.Pin = SOM_SYS_RESET_Pin;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
+  GPIO_InitStruct.Pull = GPIO_PULLUP;
+  HAL_GPIO_Init(SOM_SYS_RESET_GPIO_Port, &GPIO_InitStruct);
+
   /*Configure GPIO pin : PtPin */
   GPIO_InitStruct.Pin = SOM_MOD_SLEEP_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(SOM_MOD_SLEEP_GPIO_Port, &GPIO_InitStruct);
 
-  /* EXTI interrupt init*/
-  HAL_NVIC_SetPriority(EXTI0_IRQn, 5, 0);
-  HAL_NVIC_EnableIRQ(EXTI0_IRQn);
-
-  HAL_NVIC_SetPriority(EXTI3_IRQn, 5, 0);
-  HAL_NVIC_EnableIRQ(EXTI3_IRQn);
-
-  HAL_NVIC_SetPriority(EXTI9_5_IRQn, 5, 0);
-  HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);
-
 }
 
 /* USER CODE BEGIN 2 */