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。