编写一个stm32的tim0控制舵机的函数

以下是一个基本的STM32的TIM0控制舵机的函数：

#include "stm32f10x.h"

#define SERVO_MIN_PULSE_WIDTH 500  // 最小脉宽
#define SERVO_MAX_PULSE_WIDTH 2500 // 最大脉宽
#define SERVO_PERIOD 20000         // 周期

void TIM0_Servo_Init(void)
{
    // 初始化GPIO引脚
    GPIO_InitTypeDef GPIO_InitStructure;
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    // 初始化TIM0
    TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
    TIM_TimeBaseStructure.TIM_Period = SERVO_PERIOD - 1;
    TIM_TimeBaseStructure.TIM_Prescaler = 72 - 1;
    TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
    TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
    TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);

    // 初始化TIM0的通道1
    TIM_OCInitTypeDef TIM_OCInitStructure;
    TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
    TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
    TIM_OCInitStructure.TIM_Pulse = SERVO_MIN_PULSE_WIDTH;
    TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
    TIM_OC1Init(TIM2, &TIM_OCInitStructure);
    TIM_OC1PreloadConfig(TIM2, TIM_OCPreload_Enable);

    TIM_Cmd(TIM2, ENABLE);
}

void TIM0_Servo_SetAngle(uint8_t angle)
{
    uint16_t pulse_width = SERVO_MIN_PULSE_WIDTH + (SERVO_MAX_PULSE_WIDTH - SERVO_MIN_PULSE_WIDTH) * angle / 180;
    TIM_SetCompare1(TIM2, pulse_width);
}

在这个函数中，我们首先通过`GPIO_InitTypeDef`和`TIM_TimeBaseInitTypeDef`初始化了GPIO和TIM0，然后通过`TIM_OCInitTypeDef`初始化了TIM0的通道1。在`TIM0_Servo_SetAngle`函数中，我们可以设置舵机的角度，通过计算出对应脉宽，使用`TIM_SetCompare1`函数来更新TIM0通道1的脉宽。