obd_iso15765/BleCanBoxCode/STM32F103RCT6/HARDWARE/ADC/hal_adc.c

#include "hal_adc.h"

#include "sys_log.h"
#include "sys_timer.h"

#include "delay.h"

#include "board.h"

#define GET_ADC_CNT  3

ADC_HandleTypeDef ADC1_Handler;


void HAL_AdcInit(void)
{
    RCC_PeriphCLKInitTypeDef ADC_CLKInit;
    ADC_CLKInit.PeriphClockSelection = RCC_PERIPHCLK_ADC;
    ADC_CLKInit.AdcClockSelection = RCC_ADCPCLK2_DIV6;
    HAL_RCCEx_PeriphCLKConfig(&ADC_CLKInit);
    ADC1_Handler.Instance = ADC1;
    ADC1_Handler.Init.DataAlign = ADC_DATAALIGN_RIGHT;
    ADC1_Handler.Init.ScanConvMode = DISABLE;                 
    ADC1_Handler.Init.ContinuousConvMode = DISABLE;              
    ADC1_Handler.Init.NbrOfConversion = 1;                       
    ADC1_Handler.Init.DiscontinuousConvMode = DISABLE;        
    ADC1_Handler.Init.NbrOfDiscConversion = 0;                  
    ADC1_Handler.Init.ExternalTrigConv = ADC_SOFTWARE_START;    
    HAL_ADC_Init(&ADC1_Handler);                               
    HAL_ADCEx_Calibration_Start(&ADC1_Handler);              
}

void HAL_ADC_MspInit(ADC_HandleTypeDef *hadc)
{
    GPIO_InitTypeDef GPIO_Initure;
    __HAL_RCC_ADC1_CLK_ENABLE();          
    __HAL_RCC_GPIOA_CLK_ENABLE();       
    GPIO_Initure.Pin = ADC_PIN;       
    GPIO_Initure.Mode = GPIO_MODE_ANALOG;  
    GPIO_Initure.Pull = GPIO_NOPULL;       
    HAL_GPIO_Init(ADC_GPIO, &GPIO_Initure);
}

static uint16_t Get_Adc(uint32_t ch)
{
    ADC_ChannelConfTypeDef ADC1_ChanConf;
    ADC1_ChanConf.Channel = ch;                        
    ADC1_ChanConf.Rank = 1;                                  
    ADC1_ChanConf.SamplingTime = ADC_SAMPLETIME_239CYCLES_5;   
    HAL_ADC_ConfigChannel(&ADC1_Handler, &ADC1_ChanConf);   
    HAL_ADC_Start(&ADC1_Handler);                             
    HAL_ADC_PollForConversion(&ADC1_Handler, 10);            
    return (uint16_t)HAL_ADC_GetValue(&ADC1_Handler);            
}


uint16_t HAL_AdcGetVal(void)
{
    u32 temp_val = 0;
    u8 t;

    for (t = 0; t < GET_ADC_CNT; t++)
    {
        temp_val += Get_Adc(ADC_CHANNEL_1);
        delay_ms(3);
    }
    return temp_val / GET_ADC_CNT;
}

void get_adv_val_timer_callback(void)
{
    int mv;
    uint16_t val = HAL_AdcGetVal();

    mv = val*(3.3/4096)*1000;

    DLOG_I("adv_val:%d,mv:%d",val,mv);
}


void HAL_AdcGetValTimerInit(void)
{
    HAL_TimerRegister(get_adv_val_timer_callback, 1000);
}