最近读STM32手册定时器部分,
The auto-reload register is preloaded. Writing to or reading from the auto-reload register accesses the preload register. The content of the preload register are transferred into the shadow register permanently or at each update event (UEV), depending on the auto-reload preload enable bit (ARPE) in TIMx_CR1 register.
在这其中提到三个寄存器不知是何关系?
auto-reload register
preload register
shadow register |