给出stm32f103c8t6控制光敏传感器5516和LED灯的代码要求当外界光照强度下降到低于设定标准自动开启LED灯源；当光照强度在设定正常范围之内关闭LED灯源并且上述过程仅启动一次之后可以自动执行并且要使用ADC模拟看门狗阈值范围为1300到2300

以下是基于STM32 HAL库的代码，使用PA0口连接光敏传感器，PA1口连接LED灯：

#include "stm32f1xx_hal.h"

ADC_HandleTypeDef hadc1;

void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_ADC1_Init(void);

int main(void)
{
  HAL_Init();
  SystemClock_Config();
  MX_GPIO_Init();
  MX_ADC1_Init();
  
  uint32_t adc_value = 0;
  uint32_t adc_threshold_low = 1300;
  uint32_t adc_threshold_high = 2300;
  uint8_t led_on = 0;
  
  while (1)
  {
    HAL_ADC_Start(&hadc1);
    if (HAL_ADC_PollForConversion(&hadc1, 100) == HAL_OK) {
      adc_value = HAL_ADC_GetValue(&hadc1);
      if (adc_value < adc_threshold_low && !led_on) {
        HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_SET); // turn on LED
        led_on = 1;
      } else if (adc_value > adc_threshold_high && led_on) {
        HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_RESET); // turn off LED
        led_on = 0;
      }
    }
    HAL_ADC_Stop(&hadc1);
    
    HAL_Delay(1000); // delay for 1 second
  }
}

void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
  {
    Error_Handler();
  }
}

static void MX_ADC1_Init(void)
{
  ADC_ChannelConfTypeDef sConfig = {0};

  __HAL_RCC_ADC1_CLK_ENABLE();
  
  hadc1.Instance = ADC1;
  hadc1.Init.ScanConvMode = DISABLE;
  hadc1.Init.ContinuousConvMode = DISABLE;
  hadc1.Init.DiscontinuousConvMode = DISABLE;
  hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc1.Init.NbrOfConversion = 1;
  if (HAL_ADC_Init(&hadc1) != HAL_OK)
  {
    Error_Handler();
  }
  
  sConfig.Channel = ADC_CHANNEL_0;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
}

static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};

  __HAL_RCC_GPIOA_CLK_ENABLE();
  
  GPIO_InitStruct.Pin = GPIO_PIN_0;
  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  
  GPIO_InitStruct.Pin = GPIO_PIN_1;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}

其中，ADC模块初始化使用了单次转换模式，每次轮询获取传感器的光敏值，并与设定的阈值进行比较，当光敏值低于阈值且LED灯未开启时，将LED灯开启；当光敏值高于阈值且LED灯已开启时，将LED灯关闭。延时1秒后再次轮询传感器光敏值。

需要注意的是，如果使用了ADC模拟看门狗，需要在while循环中添加触发看门狗的代码，例如：

HAL_ADC_Start(&hadc1);
HAL_Delay(1); // delay for 1 millisecond
if (HAL_ADC_PollForConversion(&hadc1, 100) == HAL_OK) {
  // ...
}
HAL_ADC_Stop(&hadc1);

HAL_IWDG_Refresh(&hiwdg); // refresh the watchdog timer

其中，hiwdg为IWDG_HandleTypeDef类型的看门狗句柄。每次ADC采样前延时1毫秒，然后判断采样是否成功，如果成功则执行光敏传感器的逻辑。每次轮询结束后，需要调用HAL_IWDG_Refresh函数刷新看门狗计数器