如题,为什么有这样的要求,没看出来这个到底与放在之前调用有差别,还是手册哪里写了,但事实却是不同,只用放在之后调用才会生效,求大侠指点
You can change the SysTick Clock source to be HCLK_Div8 by calling the SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK_Div8) just after the SysTick_Config() function call. The SysTick_CLKSourceConfig() is defined inside the stm32f0xx_misc.c file.
|