lora_bl/Core/Src/Battery.c

//
// Created by admin on 2025/10/1.
//
#include "Battery.h"
/*
 ****************************************************************************************************
2025/10/1 计划采用ADC来实现电量检测
*/

ADC_HandleTypeDef g_adc_handle;

void adc_init(void)
{
    g_adc_handle.Instance = ADC_ADCX;
    g_adc_handle.Init.DataAlign = ADC_DATAALIGN_RIGHT;
    g_adc_handle.Init.ScanConvMode = ADC_SCAN_DISABLE;
    g_adc_handle.Init.ContinuousConvMode = DISABLE;
    g_adc_handle.Init.NbrOfConversion = 1;
    g_adc_handle.Init.DiscontinuousConvMode = DISABLE;
    g_adc_handle.Init.NbrOfDiscConversion = 0;
    g_adc_handle.Init.ExternalTrigConv = ADC_SOFTWARE_START;
    HAL_ADC_Init(&g_adc_handle);

    HAL_ADCEx_Calibration_Start(&g_adc_handle);
}


void HAL_ADC_MspInit(ADC_HandleTypeDef *hadc)
{
    if(hadc->Instance == ADC_ADCX)
    {
        GPIO_InitTypeDef gpio_init_struct;
        RCC_PeriphCLKInitTypeDef adc_clk_init = {0};

        ADC_ADCX_CHY_CLK_ENABLE();
        ADC_ADCX_CHY_GPIO_CLK_ENABLE();

        adc_clk_init.PeriphClockSelection = RCC_PERIPHCLK_ADC;
        adc_clk_init.AdcClockSelection = RCC_ADCPCLK2_DIV6;
        HAL_RCCEx_PeriphCLKConfig(&adc_clk_init);


        gpio_init_struct.Pin = ADC_ADCX_CHY_GPIO_PIN;
        gpio_init_struct.Mode = GPIO_MODE_ANALOG;
        HAL_GPIO_Init(ADC_ADCX_CHY_GPIO_PORT, &gpio_init_struct);
    }
}


void adc_channel_set(ADC_HandleTypeDef *adc_handle, uint32_t ch, uint32_t rank, uint32_t stime)
{
    ADC_ChannelConfTypeDef adc_ch_conf;

    adc_ch_conf.Channel = ch;
    adc_ch_conf.Rank = rank;
    adc_ch_conf.SamplingTime = stime;
    HAL_ADC_ConfigChannel(adc_handle, &adc_ch_conf);
}


uint32_t adc_get_result(uint32_t ch)
{
    adc_channel_set(&g_adc_handle , ch, ADC_REGULAR_RANK_1, ADC_SAMPLETIME_239CYCLES_5);

    HAL_ADC_Start(&g_adc_handle);
    HAL_ADC_PollForConversion(&g_adc_handle, 10);
    return (uint16_t)HAL_ADC_GetValue(&g_adc_handle);
}


uint32_t adc_get_result_average(uint32_t ch, uint8_t times)
{
    uint32_t temp_val = 0;
    uint8_t t;

    for (t = 0; t < times; t++)
    {
        temp_val += adc_get_result(ch);
        HAL_Delay(5);
    }

    return temp_val / times;
}