ifdef USE_FULL_ASSERT /** * @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retval None */ void assert_failed(uint8_t *file, uint32_t line) { /* USER CODE BEGIN 6 */ /* User can add his own implementation to report the file name and line number, ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ /* USER CODE END 6 */ } #endif /* USE_FULL_ASSERT */

这段代码是用于检查参数合法性的宏定义。在代码中如果使用了assert_param()函数，当参数不合法时，会触发assert_failed()函数。该函数会输出错误的源文件名和行号，以便于开发者进行调试和修复代码。如果使用了USE_FULL_ASSERT宏定义，表示开启了完整的断言检查，否则只开启了基本的断言检查。

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int main(void) { /*HW semaphore Clock enable*/ __HAL_RCC_HSEM_CLK_ENABLE(); /* Activate HSEM notification for Cortex-M4*/ HAL_HSEM_ActivateNotification(__HAL_HSEM_SEMID_TO_MASK(HSEM_ID_0)); /* Domain D2 goes to STOP mode (Cortex-M4 in deep-sleep) waiting for Cortex-M7 to perform system initialization (system clock config, external memory configuration.. ) */ HAL_PWREx_ClearPendingEvent(); HAL_PWREx_EnterSTOPMode(PWR_MAINREGULATOR_ON, PWR_STOPENTRY_WFE, PWR_D2_DOMAIN); /* Clear HSEM flag */ __HAL_HSEM_CLEAR_FLAG(__HAL_HSEM_SEMID_TO_MASK(HSEM_ID_0)); /* STM32H7xx HAL library initialization: - Systick timer is configured by default as source of time base, but user can eventually implement his proper time base source (a general purpose timer for example or other time source), keeping in mind that Time base duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and handled in milliseconds basis. - Set NVIC Group Priority to 4 - Low Level Initialization */ HAL_Init(); /* Infinite loop */ while (1) { } } #ifdef USE_FULL_ASSERT /** * @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retval None */ void assert_failed(uint8_t *file, uint32_t line) { /* User can add his own implementation to report the file name and line number, ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ /* Infinite loop */ while (1) { } } #endif /** * @} */ /** * @} */

这段代码是关于断言的一段代码。断言是一种调试技术，可以在程序中加入一些检查，用来检测程序运行时的错误。当程序执行到断言语句时，如果断言条件为假，则程序会停止运行并报告错误。在这段代码中，使用了宏定义USE_FULL_ASSERT来启用断言功能。当程序中出现参数错误时，assert_failed函数会被调用，报告发生错误的文件名和行号。如果不启用断言功能，则这段代码不会被编译进程序中。

void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) { if(huart->Instance == huart1.Instance)//´®¿Ú1´¥·¢ÖÐ¶Ï { HAL_UART_Receive_IT(&huart1, &uart1_value, 1); uart1_buf[uart1_num++] = uart1_value; uart1_time = 0; } if(huart->Instance == Huart_wifi.Instance)//´®¿Ú´¥·¢ÖÐ¶Ï { if(huart->Instance == Huart_wifi.Instance)//´®¿Ú´¥·¢ { HAL_UART_Receive_IT(&Huart_wifi, &uartwifi_value, 1); if(ESP8266_cnt >= sizeof(ESP8266_buf)) ESP8266_cnt = 0; //·ÀÖ¹´®¿Ú±»Ë¢±¬ ESP8266_buf[ESP8266_cnt++] = uartwifi_value; } } } /* USER CODE END 4 */ /** * @brief This function is executed in case of error occurrence. * @retval None */ void Error_Handler(void) { /* USER CODE BEGIN Error_Handler_Debug */ /* User can add his own implementation to report the HAL error return state */ __disable_irq(); while (1) { } /* USER CODE END Error_Handler_Debug */ } #ifdef USE_FULL_ASSERT /** * @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retval None */ void assert_failed(uint8_t *file, uint32_t line) { /* USER CODE BEGIN 6 */ /* User can add his own implementation to report the file name and line number, ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ /* USER CODE END 6 */ } #endif /* USE_FULL_ASSERT */

这是一个使用HAL库编写的STM32串口接收回调函数。当接收到数据时，该函数会检测是哪个串口接收到了数据，并将数据存储到对应的缓冲区中。其中，第一个if语句用于处理串口1接收到的数据，第二个if语句用于处理另一个名为Huart_wifi的串口接收到的数据。如果发生错误，会调用Error_Handler函数进行处理。此外，该代码还包含了一个断言函数，用于在参数错误时进行报错。