/*TIM2初始化为编码器接口*/ void Encoder_Init_TIM2(void) { TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; TIM_ICInitTypeDef TIM_ICInitStructure; GPIO_InitTypeDef GPIO_InitStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);//使能定时器4的时钟 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);//使能PA端口时钟 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1; //端口配置 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //浮空输入 GPIO_Init(GPIOA, &GPIO_InitStructure); //根据设定参数初始化GPIOA TIM_TimeBaseStructInit(&TIM_TimeBaseStructure); TIM_TimeBaseStructure.TIM_Prescaler = 0x0; // 预分频器 TIM_TimeBaseStructure.TIM_Period = ENCODER_TIM_PERIOD; //设定计数器自动重装值 TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//选择时钟分频：不分频 TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;TIM向上计数 TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); TIM_EncoderInterfaceConfig(TIM2, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);//使用编码器模式3 TIM_ICStructInit(&TIM_ICInitStructure); TIM_ICInitStructure.TIM_ICFilter = 10; TIM_ICInit(TIM2, &TIM_ICInitStructure); TIM_ClearFlag(TIM2, TIM_FLAG_Update);//清除TIM的更新标志位 TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE); //Reset counter TIM_SetCounter(TIM2,0); TIM_Cmd(TIM2, ENABLE); } 将这个翻译为寄存器版本

以下是将代码翻译为寄存器版本的结果：

void Encoder_Init_TIM2(void) {
    // 使能定时器4和GPIOA的时钟
    RCC->APB1ENR |= RCC_APB1ENR_TIM2EN;
    RCC->APB2ENR |= RCC_APB2ENR_IOPAEN;

    // 配置PA0和PA1为浮空输入模式
    GPIOA->CRL &= ~(GPIO_CRL_MODE0 | GPIO_CRL_CNF0 | GPIO_CRL_MODE1 | GPIO_CRL_CNF1);
    GPIOA->CRL |= GPIO_CRL_CNF0_0 | GPIO_CRL_CNF1_0;

    // 初始化定时器
    TIM2->CR1 &= ~(TIM_CR1_DIR | TIM_CR1_CMS); // 向上计数，边沿对齐模式
    TIM2->CR1 &= ~TIM_CR1_CKD; // 不分频
    TIM2->ARR = ENCODER_TIM_PERIOD; // 设定计数器自动重装值
    TIM2->CCMR1 = TIM_CCMR1_CC1S_0 | TIM_CCMR1_CC2S_0; // 将CC1和CC2映射到TI1和TI2上
    TIM2->CCER = TIM_CCER_CC1P | TIM_CCER_CC2P; // TI1和TI2上升沿触发
    TIM2->SMCR = TIM_SMCR_SMS_0 | TIM_SMCR_SMS_1; // 编码器模式3
    TIM2->CR2 &= ~TIM_CR2_MMS; // 不使用主模式输出
    TIM2->CNT = 0; // 计数器清零
    TIM2->SR &= ~TIM_SR_UIF; // 清除更新标志位
    TIM2->DIER |= TIM_DIER_UIE; // 使能更新中断
    TIM2->CR1 |= TIM_CR1_CEN; // 使能定时器
}