STM8 symbol _assert_failed not defined (Debugstm8s_adc1.o )

symbol _assert_failed not defined (Debugstm8s_adc1.o )

在调试STM8的时候出现了这个问题，即函数assert_failed 未定义。查找问题，在stm8s_conf.h中对void assert_failed(u8* file, u32 line) 进行了申明，确没有文件中对该函数体进行编写，因此编译时找不到该函数而出错。因为之前没有使用库文件，全部自己调用寄存器编制的程序就没有碰到这种问题。

在头文件stm8s_conf.h中对函数有引用：

#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)0 : assert_failed((uint8_t )FILE, LINE))

/ Exported functions ------------------------------------------------------- /

void assert_failed(uint8_t file, uint32_t line);

#else

#define assert_param(expr) ((void)0)

#endif / USE_FULL_ASSERT */

新建一个stm8s_assert_fail.c文件，在开始时包含stm8s_conf.h，添加函数体文件如下：

#include “stm8s_conf.h”

#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(u8 file, u32 line)

{

/* User can add his own implementation to report the file name and line number,

ex: printf(“Wrong parameters value: file %s on line %drn”, file, line) */

/* Infinite loop */

while (1)

{

}

}

#endif

编译即可通过。