用GD32f450vet6芯片控制电机驱动程序

控制电机需要使用芯片的PWM功能，下面是基于GD32F450芯片的电机驱动程序的代码示例：

1. 配置PWM定时器

/* 配置PWM定时器 */
void PWM_Timer_Configuration(void)
{
    timer_oc_parameter_struct timer_ocintpara;
    timer_parameter_struct timer_initpara;

    rcu_periph_clock_enable(RCU_TIMER0);
    rcu_timer_clock_prescaler_config(RCU_TIMER_PSC_MUL4);
    timer_deinit(TIMER0);
    /* TIMER0 configuration */
    timer_initpara.prescaler         = 3;             // 计数器时钟分频系数
    timer_initpara.alignedmode       = TIMER_COUNTER_EDGE;  // 边沿对齐计数模式
    timer_initpara.counterdirection  = TIMER_COUNTER_UP;    // 向上计数
    timer_initpara.period            = 1000;          // PWM周期
    timer_initpara.clockdivision     = TIMER_CKDIV_DIV1;   // 时钟分割
    timer_initpara.repetitioncounter = 0;             // 重复计数器值
    timer_init(TIMER0, &timer_initpara);

    /* Timer0 PWM channel configuration */
    timer_ocintpara.ocpolarity   = TIMER_OC_POLARITY_HIGH;
    timer_ocintpara.ocnpolarity  = TIMER_OCN_POLARITY_HIGH;
    timer_ocintpara.outputstate  = TIMER_CCX_ENABLE;
    timer_ocintpara.outputnstate = TIMER_CCXN_DISABLE;
    timer_ocintpara.ocidlestate  = TIMER_OC_IDLE_STATE_LOW;
    timer_ocintpara.ocnidlestate = TIMER_OCN_IDLE_STATE_HIGH;

    timer_channel_output_config(TIMER0, TIMER_CH_0, &timer_ocintpara);
    timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_0, 0);
    timer_channel_output_mode_config(TIMER0, TIMER_CH_0, TIMER_OC_MODE_PWM0);
    timer_channel_output_shadow_config(TIMER0, TIMER_CH_0, TIMER_OC_SHADOW_DISABLE);

    timer_primary_output_config(TIMER0, ENABLE);
    /* auto-reload preload enable */
    timer_auto_reload_shadow_enable(TIMER0);
    /* enable timer */
    timer_enable(TIMER0);
}

2. 配置PWM输出引脚

/* 配置PWM输出引脚 */
void PWM_GPIO_Configuration(void)
{
    rcu_periph_clock_enable(RCU_GPIOB);
    gpio_init(GPIOB, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_0);
}

3. 控制电机旋转

/* 控制电机旋转 */
void Motor_Control(uint16_t pwm_value)
{
    timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_0, pwm_value);
}

以上是基本的电机驱动程序，你可以根据具体的电机参数和需求进行调整。