[mw_shl_code=c,true]保证tim1的寄存器处于复位状态，想使用PB0PB1作为编码器的输入；目前现象是编码器有实际输入，可是计数器CNT没有变化， gpio上电默认是浮空输入[/mw_shl_code] [mw_shl_code=c,true]TIM1_TimeBaseInit(0,TIM1_COUNTERMODE_UP ,999,0); TIM1_EncoderInterfaceConfig(TIM1_ENCODERMODE_TI1, TIM1_ICPOLARITY_RISING, TIM1_ICPOLARITY_RISING); TIM1_ARRPreloadConfig(ENABLE); TIM1_Cmd(ENABLE);[/mw_shl_code]