【iCore1S 双核心板_ARM】例程八：ADC实验——电源监控

实验原理：

　　STM32内部集成三个12位ADC，iCore1S的所有电源经过

电阻分压或者直接接入STM32的ADC的输出通道内，输入电流

经过高端电流检测芯片ZXCT1009F输入到ADC的输入通道内，

从而实现电源监控功能。　　　

实验现象：

　　iCore1S双核心板红色LED常亮，串口向终端输出电源监

控的数据。

核心代码：

int main(void)
{
 
  /* USER CODE BEGIN 1 */
    int i;
  /* USER CODE END 1 */
 
  /* MCU Configuration----------------------------------------------------------*/
 
  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();//ÍâÉè³õʼ»¯
 
  /* USER CODE BEGIN Init */
 
  /* USER CODE END Init */
 
  /* Configure the system clock */
  SystemClock_Config();
 
  /* USER CODE BEGIN SysInit */
 
  /* USER CODE END SysInit */
 
  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_ADC3_Init();
  MX_USART1_UART_Init();
 
  /* USER CODE BEGIN 2 */
    LED_RED_ON;                                              
 
    usart1.printf("\x0c");                                   
 
    usart1.printf("\033[1;32;40m");                         
 
    usart1.printf("\r\n\r\nhello! I am iCore1S!\r\n\r\n\r\n");
 
  /* USER CODE END 2 */
 
  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while ()
  {
  /* USER CODE END WHILE */
        for(i = ;i < ;i++);
 
        //ADC采集
        for(i = ;i < ;i++){
            adc.read(i);
        }
 
        usart1.printf(" [V] %4.2fV, ",adc.value[] * );
        usart1.printf("[I] %3.0fmA , ",adc.value[] / * .);
        usart1.printf("[1.2V] %4.2fV, ",adc.value[]);
        usart1.printf("[3.3V] %4.2fV, ",adc.value[] * );
        usart1.printf("[2.5V] %4.2fV\r",adc.value[] * );        
 
  /* USER CODE BEGIN 3 */
 
  }
  /* USER CODE END 3 */
 
}

static int read_adc(int channel)
{
    int i,k;
    unsigned long int temp[] = {};
    unsigned long int value;
    unsigned short int data[];
    ADC_ChannelConfTypeDef channel_config;
    unsigned char channel_remap[] = {ADC_CHANNEL_4,ADC_CHANNEL_5,ADC_CHANNEL_6,ADC_CHANNEL_7,ADC_CHANNEL_8};
 
    channel_config.Channel = channel_remap[channel];
    channel_config.Rank = ;
    channel_config.SamplingTime = ADC_SAMPLETIME_239CYCLES_5;
 
    for(k = ;k < ;k++){
        for(i = ;i < ;i++){
 
            HAL_ADC_ConfigChannel(&hadc3,&channel_config);
            HAL_ADC_Start(&hadc3);
 
            while(!__HAL_ADC_GET_FLAG(&hadc3,ADC_FLAG_EOC));
            data[i] = HAL_ADC_GetValue(&hadc3);
        }
 
        sort(data,);
 
        for(i = ;i < ;i++){
            temp[k] += data[i];
        }
 
        temp[k] = temp[k] / ;
    }
 
    value = ;
    for(k = ;k < ;k++){
        value += temp[k];
    }
    value /= ;
 
    adc.value[channel] = value * ADC_REF / ; 
 
    return value;
}

源代码下载链接：

链接：http://pan.baidu.com/s/1eRScqK6 密码：0tmn