stml9110风扇模块驱动代码

STML9110 风扇模块驱动代码需要根据具体的硬件设计进行编写。以下是一些常见的风扇模块驱动代码示例，供参考：

1. 使用PWM模块控制风扇转速

#include "stm32l1xx_hal.h"

/* 定义PWM输出引脚 */
#define FAN_PWM_PIN GPIO_PIN_1
#define FAN_PWM_PORT GPIOA

/* 定义PWM模块 */
TIM_HandleTypeDef htim3;

/* 风扇初始化函数 */
void fan_init(void)
{
  /* 使能PWM时钟 */
  __HAL_RCC_TIM3_CLK_ENABLE();
  
  /* 配置PWM引脚 */
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  GPIO_InitStruct.Pin = FAN_PWM_PIN;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  GPIO_InitStruct.Alternate = GPIO_AF2_TIM3;
  HAL_GPIO_Init(FAN_PWM_PORT, &GPIO_InitStruct);
  
  /* 配置PWM模块 */
  htim3.Instance = TIM3;
  htim3.Init.Prescaler = 0;
  htim3.Init.CounterMode = TIM_COUNTERMODE_UP;
  htim3.Init.Period = 999;
  htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
  HAL_TIM_PWM_Init(&htim3);
  
  /* 启动PWM模块 */
  HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_4);
}

/* 设置风扇转速 */
void fan_set_speed(uint8_t speed)
{
  /* 计算占空比 */
  uint32_t duty_cycle = speed * 10;
  
  /* 设置PWM占空比 */
  TIM_OC_InitTypeDef sConfigOC = {0};
  sConfigOC.OCMode = TIM_OCMODE_PWM1;
  sConfigOC.Pulse = duty_cycle;
  sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
  sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
  HAL_TIM_PWM_ConfigChannel(&htim3, &sConfigOC, TIM_CHANNEL_4);
  HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_4);
}

2. 使用GPIO模块控制风扇开关

#include "stm32l1xx_hal.h"

/* 定义GPIO输出引脚 */
#define FAN_GPIO_PIN GPIO_PIN_1
#define FAN_GPIO_PORT GPIOA

/* 风扇初始化函数 */
void fan_init(void)
{
  /* 使能GPIO时钟 */
  __HAL_RCC_GPIOA_CLK_ENABLE();
  
  /* 配置GPIO引脚 */
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  GPIO_InitStruct.Pin = FAN_GPIO_PIN;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(FAN_GPIO_PORT, &GPIO_InitStruct);
}

/* 打开风扇 */
void fan_turn_on(void)
{
  HAL_GPIO_WritePin(FAN_GPIO_PORT, FAN_GPIO_PIN, GPIO_PIN_SET);
}

/* 关闭风扇 */
void fan_turn_off(void)
{
  HAL_GPIO_WritePin(FAN_GPIO_PORT, FAN_GPIO_PIN, GPIO_PIN_RESET);
}

需要根据具体的硬件设计，选择适合的代码进行修改。