GD32F103写个获取ADC0前16个通道电压值的代码

好的，这是示例代码，供参考：

#include "gd32f10x.h"
#include <stdio.h>

void ADC_GPIO_Configuration(void)
{
    rcu_periph_clock_enable(RCU_GPIOA);
    gpio_init(GPIOA, GPIO_MODE_AIN, GPIO_OSPEED_50MHZ, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|
              GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11|
              GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15);
}

void ADC_Configuration(void)
{
    rcu_periph_clock_enable(RCU_ADC0);
    adc_clock_config(ADC0,ADC_CLOCK_MODE_SYNCLK_DIV2);
    adc_mode_config(ADC_MODE_FREE);
    adc_special_function_config(ADC0, ADC_SCAN_MODE, ENABLE);
    adc_special_function_config(ADC0, ADC_CONTINUOUS_MODE, DISABLE);
    adc_external_trigger_source_config(ADC0, ADC_EXTTRIG_REGULAR_NONE);
    adc_data_alignment_config(ADC0, ADC_DATAALIGN_RIGHT);
    adc_channel_length_config(ADC0, ADC_INSERTED_CHANNEL, 16);
    adc_regular_channel_config(ADC0, 0, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 1, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 2, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 3, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 4, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 5, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 6, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 7, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 8, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 9, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 10, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 11, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 12, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 13, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 14, ADC_SAMPLETIME_55POINT5);
    adc_regular_channel_config(ADC0, 15, ADC_SAMPLETIME_55POINT5);
    adc_enable(ADC0);
    delay_1ms(1); 
}

uint16_t ADC_GetValue(uint8_t rank)
{
    uint16_t value;
    adc_inserted_channel_enable(ADC0, rank);
    delay_1ms(1);
    adc_software_trigger_enable(ADC0, ADC_INSERTED_CHANNEL);
    while(!adc_flag_get(ADC0,ADC_FLAG_EOC));
    adc_flag_clear(ADC0, ADC_FLAG_EOC);
    value = ADC_RDATA0(ADC0);
    adc_inserted_channel_disable(ADC0, rank);
    return value;
}

int main(void)
{
    uint8_t i;
    uint16_t adc_value;
    ADC_GPIO_Configuration();
    ADC_Configuration();

    while(1)
    {
        printf("\r\n-----------------");
        for(i=0;i<16;i++)
        {
            adc_value = ADC_GetValue(i);
            printf("\r\nADC%d Value:%d",i,adc_value);
        }
        delay_1ms(1000);
    }
}

此代码使用了 GD32F103 的 ADC 功能，并且获得了 16 个通道的电压值。你需要根据具体的需求进行适当的修改。