这是STM32的滴答滴答定时器，其是COMTEX M3内核里的一个定时器，一般用作精准延时和给系统提供时钟，如UCOS。欢迎下载研究讨论-This is the STM32 ticking timer, and it is the the COMTEX M3 core of a timer, normally used for accurate delay and the system clock, such as UCOS. Download research and discussion