#include "drv_adc.h"
#include "stdlib.h"
#include "string.h"
#include "gd32f4xx.h"
#include "rtthread.h"


#define ADC_BASIC 3300

void ADC_Init()
{
    //配置引脚时钟
    rcu_periph_clock_enable(RCU_GPIOC);
    //引脚复用，PC2——电压ADC1-CH12，PC3——电流ADC1-CH13
    gpio_mode_set(GPIOC,GPIO_MODE_ANALOG,GPIO_PUPD_NONE,GPIO_PIN_2);
    gpio_mode_set(GPIOC,GPIO_MODE_ANALOG,GPIO_PUPD_NONE,GPIO_PIN_3);
    
    rcu_periph_clock_enable(RCU_ADC1);
    //总线时钟20分频=6MHZ
    adc_clock_config(ADC_ADCCK_PCLK2_DIV4);
    /***********************************************/


    //对齐方式      ADC_INSERTED_CHANNEL
    adc_data_alignment_config(ADC1,ADC_DATAALIGN_RIGHT);
    //扫描模式
    adc_special_function_config(ADC1,ADC_SCAN_MODE,ENABLE);
    //外部触发关闭
    adc_external_trigger_config(ADC1,ADC_INSERTED_CHANNEL,DISABLE);
    //采集通道数
    adc_channel_length_config(ADC1,ADC_INSERTED_CHANNEL,2);
    
    //通道注入顺序
    adc_inserted_channel_config(ADC1,0,ADC_CHANNEL_13,ADC_SAMPLETIME_480);//电流
    adc_inserted_channel_config(ADC1,1,ADC_CHANNEL_12,ADC_SAMPLETIME_480);//电压
    
   
    adc_enable(ADC1);
    
    adc_calibration_enable(ADC1);
}

 //电压采集
float ptz_Voltage_collect_adc1_task()
{
  static float adc1_v[5];
  static unsigned char adc1_num;
  int j,k;
  float tem;
  float curadc1;
  uint16_t value_V;
  //软件触发使能
  adc_software_trigger_enable(ADC1,ADC_INSERTED_CHANNEL);
  value_V = ADC_IDATA1(ADC1);

  adc1_v[adc1_num] = (float)value_V / 4096.0 * 11 *3.3;//(float)value_V;//
  adc1_num++;
  if(adc1_num >= 5)
  {
    adc1_num = 0;
    for(j = 0; j < 5-1; j++)//采样值由小到大排列
    {
      for(k = 0; k < 5-j-1; k++)
      {
        if(adc1_v[k] > adc1_v[k+1])
        {
          tem         = adc1_v[k];
          adc1_v[k]   = adc1_v[k+1];
          adc1_v[k+1] = tem;
        }
      }
    }
    for(uint8_t i = 1; i < 5 - 1; i++)
    {
      curadc1 = curadc1 + adc1_v[i];
    }
    curadc1 = curadc1 /((float)(5 - 2));//去掉一个最大值和一个最小值求平均值
    // g_ptz.Voltage =  curadc1;
    memset(adc1_v,0,sizeof(adc1_v));
    return curadc1;
    // rt_kprintf("ADC Channel value: %f\n", curadc1);
    //    pdebug(DEBUG_LEVEL_INFO,"get ptz Voltage: %.3fV",g_ptz.Voltage);
  }
}

void init_data_collect_module(void)
{
  ADC_Init();//AD采集引脚初始化
  // temp75_gpio_init();//温度传感器初始化
  // creat_task_data_collect();
}