使用STM32CubeMX工程生成的CMSIS及STM32H7xx_HAL_Driver,编译ucosiii时出现如下错误提示,请问是什么原因?
../Software/uCOS-III/Source/os_core.c(522): warning: implicit declaration of function 'ISB' is invalid in C99 [-Wimplicit-function-declaration]
../Software/uCOS-III/Ports\os_cpu.h(109): note: expanded from macro 'OS_TASK_SW_SYNC'
#define OS_TASK_SW_SYNC() ISB()
linking...
.\output\output.axf: Error: L6218E: Undefined symbol ISB (referred from os_core.o).
Not enough information to list image symbols.
Not enough information to list load addresses in the image map.
Finished: 2 information, 0 warning and 1 error messages.
".\output\output.axf" - 1 Error(s), 1 Warning(s).