CHxF位是指哪一个寄存器
在配置GD32F470时候发现库文件有下列描述：/*!
\brief initialize TIMER counter
\paramtimer_periph: TIMERx(x=0..13)
\paraminitpara: init parameter struct
prescaler: prescaler value of the counter clock,0~65535
alignedmode: TIMER_COUNTER_EDGE,TIMER_COUNTER_CENTER_DOWN,TIMER_COUNTER_CENTER_UP,TIMER_COUNTER_CENTER_BOTH
counterdirection: TIMER_COUNTER_UP,TIMER_COUNTER_DOWN
period: counter auto reload value,(TIMER1,TIMER4,32 bit)
clockdivision: TIMER_CKDIV_DIV1,TIMER_CKDIV_DIV2,TIMER_CKDIV_DIV4
repetitioncounter: counter repetition value,0~255
\param none
\retval none
*/
其中对alignedmode这一位置不是很理解，查询手册发现提到alignedmode与CHxF位置有关，但是没有发现手册指明该位置属于哪个寄存器，有大佬知道吗？请教一下alignedmode位TIMER_COUNTER_EDGE,TIMER_COUNTER_CENTER_DOWN,TIMER_COUNTER_CENTER_UP,TIMER_COUNTER_CENTER_BOTH分别代表什么含义？
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