终于把433通讯整出来了，不过程序空间快不够了要好好优化一下

Core/Src/stm32f0xx_it.c

@@ -56,7 +56,7 @@
 /* USER CODE END 0 */
 
 /* External variables --------------------------------------------------------*/
-
+extern TIM_HandleTypeDef htim14;
 /* USER CODE BEGIN EV */
 
 /* USER CODE END EV */
@@ -141,6 +141,34 @@ void SysTick_Handler(void)
 /* please refer to the startup file (startup_stm32f0xx.s).                    */
 /******************************************************************************/
 
+/**
+  * @brief This function handles EXTI line 2 and 3 interrupts.
+  */
+void EXTI2_3_IRQHandler(void)
+{
+  /* USER CODE BEGIN EXTI2_3_IRQn 0 */
+
+  /* USER CODE END EXTI2_3_IRQn 0 */
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_3);
+  /* USER CODE BEGIN EXTI2_3_IRQn 1 */
+
+  /* USER CODE END EXTI2_3_IRQn 1 */
+}
+
+/**
+  * @brief This function handles TIM14 global interrupt.
+  */
+void TIM14_IRQHandler(void)
+{
+  /* USER CODE BEGIN TIM14_IRQn 0 */
+
+  /* USER CODE END TIM14_IRQn 0 */
+  HAL_TIM_IRQHandler(&htim14);
+  /* USER CODE BEGIN TIM14_IRQn 1 */
+
+  /* USER CODE END TIM14_IRQn 1 */
+}
+
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */