帮我写一段代码，stm32基于3144霍尔传感器控制舵机，当有磁场变化时舵机转动180度

以下是基于STM32F103C8T6的代码，使用TIM3控制舵机，当检测到3144霍尔传感器有磁场变化时，舵机转动180度：

#include "stm32f10x.h"

#define HALL_SENSOR_PIN GPIO_Pin_0
#define HALL_SENSOR_PORT GPIOA

#define SERVO_PIN GPIO_Pin_6
#define SERVO_PORT GPIOA

void GPIO_Configuration(void);
void TIM_Configuration(void);
void Delay(__IO uint32_t nTime);

int main(void)
{
  GPIO_Configuration();
  TIM_Configuration();
  while (1)
  {
    if (GPIO_ReadInputDataBit(HALL_SENSOR_PORT, HALL_SENSOR_PIN) == RESET)
    {
      TIM_SetCompare1(TIM3, 2000); // 舵机转动180度
      Delay(500); // 延时0.5秒
      TIM_SetCompare1(TIM3, 1000); // 舵机回到初始位置
      Delay(500); // 延时0.5秒
    }
  }
}

void GPIO_Configuration(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;

  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);

  GPIO_InitStructure.GPIO_Pin = HALL_SENSOR_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(HALL_SENSOR_PORT, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = SERVO_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(SERVO_PORT, &GPIO_InitStructure);
}

void TIM_Configuration(void)
{
  TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
  TIM_OCInitTypeDef TIM_OCInitStructure;

  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);

  TIM_TimeBaseStructure.TIM_Period = 19999; // PWM频率为50Hz
  TIM_TimeBaseStructure.TIM_Prescaler = 71; // 分频系数为72
  TIM_TimeBaseStructure.TIM_ClockDivision = 0;
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
  TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);

  TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
  TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
  TIM_OCInitStructure.TIM_Pulse = 1000; // 初始位置为0度
  TIM_OC1Init(TIM3, &TIM_OCInitStructure);
  TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable);

  TIM_Cmd(TIM3, ENABLE);
}

void Delay(__IO uint32_t nTime)
{
  for (; nTime != 0; nTime--);
}

需要注意的是，舵机的具体控制方式和初始位置可能会有所不同，需要根据具体型号进行调整。此外，霍尔传感器的连接方式也需要根据具体情况进行调整。