stm32编码器模式及中断配置,可以利用stm32读取正交编码器。CNT寄存器没10000代表一圈，每一圈产生一个中断，可以实时读取每一圈CNT值，以及总圈数(Stm32 encoder mode and interrupt configuration, you can use stm32 to read the quadrature encoder. CNT register no 10000 on behalf of a circle, each lap to produce an interrupt, you can read in real time to read the CNT value, and the total number of turns)