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MDK报错:Undefined symbol assert_failed报错解决策略
- 🎯🪕在全网搜索相关MDK编译报错:
Error: L6218E: Undefined symbol assert_param (referred from xxx.o).
✨有些问题看似很简单,可能产生的问题是由于不经意的细节原因导致。引起报错的问题有很多种可能,没有放之四海皆准的解决方案。
- 🌿提供的解决问题的可能方案一:添加宏定义
USE_STDPERIPH_DRIVER
- 🌿提供的解决问题的可能方案二:没有将相对应的驱动头文件(.h)路径包含进来或者是源文件(.c)添加到工程中。
- 🔖这里针对的是具体的驱动文件或驱动头文件。
- 🌿提供的解决问题的可能方案三:在
main.c
文件中,补充下面的void assert_failed()
断言报错函数:
#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,tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) *//* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
✨很多外部导入的工程源码,添加完标准库文件后,编译报此错误,往往可能是忽略标准库驱动文件中定义了此断言
assert_failed
函数,却没有写实现的地方,才会出现有调用assert_param
宏的驱动文件中报错。
/* Exported macro ------------------------------------------------------------*/
#define USE_FULL_ASSERT#ifdef USE_FULL_ASSERT/*** @brief The assert_param macro is used for function's parameters check.* @param expr If expr is false, it calls assert_failed function* which reports the name of the source file and the source* line number of the call that failed.* If expr is true, it returns no value.* @retval None*/#define assert_param(expr) ((expr) ? (void)0U : assert_failed((uint8_t *)__FILE__, __LINE__))/* Exported functions ------------------------------------------------------- */void assert_failed(uint8_t *file, uint32_t line);
#else#define assert_param(expr) ((void)0U)
#endif /* USE_FULL_ASSERT */