This example shows how to configure the SysTick to generate a time base equal to 1 ms. The system clock is set to 168 MHz, the SysTick is clocked by the AHB clock (HCLK).

stm32 sys—tick驱动程序，简单易懂，驱动led-stm32 the sys-the tick-driver, simple and easy to understand, led drive

SysTick 寄存器配置 SysTick 配置项 SysTick 中断配置流程 SysTick 中断处理流程(SysTick register configuration SysTick configuration item SysTick interrupt configuration process SysTick interrupt processing flow)