使用ADC/Auto_Injection Demo，做了些修改， 发现无法让4 ADC都正确工作，只有前面第一个是正确的，后面的都不正确，可以帮忙看看是哪里配置错了吗？
只修改了main.c 修改后的代码如下：
/********************************** (C) COPYRIGHT *******************************
* File Name : main.c
* Author : WCH
* Version : V1.0.0
* Date : 2021/06/06
* Description : Main program body.
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* SPDX-License-Identifier: Apache-2.0
*******************************************************************************/
/*
*@Note
自动注入模式例程：
ADC通道1(PA1)-规则组通道，通道3(PA3)-注入组通道
*/
#include "debug.h"
s16 Calibrattion_Val = 0;
/*********************************************************************
* @fn ADC_Function_Init
*
* @brief Initializes ADC collection.
*
* @return none
*/
#define GPIOGROUP GPIOC
#define EXTRA2 1
void ADC_Function_Init(void)
{
ADC_InitTypeDef ADC_InitStructure = {0};
GPIO_InitTypeDef GPIO_InitStructure = {0};
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
RCC_ADCCLKConfig(RCC_PCLK2_Div8);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOGROUP, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOGROUP, &GPIO_InitStructure);
#ifdef EXTRA2
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOGROUP, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOGROUP, &GPIO_InitStructure);
#endif
ADC_DeInit(ADC1);
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
//ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 1;
#ifdef EXTRA2
ADC_InitStructure.ADC_NbrOfChannel = 1;
#endif
ADC_Init(ADC1, &ADC_InitStructure);
ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 1, ADC_SampleTime_28Cycles5);
ADC_InjectedChannelConfig(ADC1, ADC_Channel_11, 1, ADC_SampleTime_28Cycles5);
//ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 1, ADC_SampleTime_239Cycles5);
//ADC_InjectedChannelConfig(ADC1, ADC_Channel_11, 1, ADC_SampleTime_239Cycles5);
#ifdef EXTRA2
ADC_InjectedChannelConfig(ADC1, ADC_Channel_12, 2, ADC_SampleTime_239Cycles5);
ADC_InjectedChannelConfig(ADC1, ADC_Channel_13, 3, ADC_SampleTime_239Cycles5);
#endif
ADC_AutoInjectedConvCmd(ADC1, ENABLE);
ADC_Cmd(ADC1, ENABLE);
ADC_BufferCmd(ADC1, DISABLE); //disable buffer
ADC_ResetCalibration(ADC1);
while(ADC_GetResetCalibrationStatus(ADC1));
ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1));
Calibrattion_Val = Get_CalibrationValue(ADC1);
ADC_BufferCmd(ADC1, ENABLE); //enable buffer
}
/*********************************************************************
* @fn Get_ADC_Val
*
* @brief Returns ADCx conversion result data.
*
* @param ch - ADC channel.
* ADC_Channel_0 - ADC Channel0 selected.
* ADC_Channel_1 - ADC Channel1 selected.
* ADC_Channel_2 - ADC Channel2 selected.
* ADC_Channel_3 - ADC Channel3 selected.
* ADC_Channel_4 - ADC Channel4 selected.
* ADC_Channel_5 - ADC Channel5 selected.
* ADC_Channel_6 - ADC Channel6 selected.
* ADC_Channel_7 - ADC Channel7 selected.
* ADC_Channel_8 - ADC Channel8 selected.
* ADC_Channel_9 - ADC Channel9 selected.
* ADC_Channel_10 - ADC Channel10 selected.
* ADC_Channel_11 - ADC Channel11 selected.
* ADC_Channel_12 - ADC Channel12 selected.
* ADC_Channel_13 - ADC Channel13 selected.
* ADC_Channel_14 - ADC Channel14 selected.
* ADC_Channel_15 - ADC Channel15 selected.
* ADC_Channel_16 - ADC Channel16 selected.
* ADC_Channel_17 - ADC Channel17 selected.
*
* @return none
*/
u16 Get_ADC_Val(u8 ch)
{
u16 val;
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC));
val = ADC_GetConversionValue(ADC1);
return val;
}
/*********************************************************************
* @fn Get_ConversionVal
*
* @brief Get Conversion Value.
*
* @param val - Sampling value
*
* @return val+Calibrattion_Val - Conversion Value.
*/
u16 Get_ConversionVal(s16 val)
{
if((val + Calibrattion_Val) < 0)
return 0;
if((Calibrattion_Val + val) > 4095||val==4095)
return 4095;
return (val + Calibrattion_Val);
}
/*********************************************************************
* @fn main
*
* @brief Main program.
*
* @return none
*/
int main(void)
{
u16 adc_val;
u16 adc_jval;
u16 adc_val_pc2;
u16 adc_val_pc3;
Delay_Init();
USART_Printf_Init(115200);
printf("SystemClk:%d\r\n", SystemCoreClock);
ADC_Function_Init();
printf("CalibrattionValue:%d\n", Calibrattion_Val);
u16 t = 0;
while(1)
{
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC));
adc_val = ADC_GetConversionValue(ADC1);
adc_jval = ADC_GetInjectedConversionValue(ADC1, ADC_InjectedChannel_1);
#ifdef EXTRA2
adc_val_pc2 = ADC_GetInjectedConversionValue(ADC1, ADC_InjectedChannel_2);
adc_val_pc3 = ADC_GetInjectedConversionValue(ADC1, ADC_InjectedChannel_3);
#endif
Delay_Ms(500);
t = Get_ConversionVal(adc_val);
printf("PC0:%04d\r\n", t);
printf("PC1:%04d\r\n", Get_ConversionVal(adc_jval));
#ifdef EXTRA2
printf("PC2:%04d\r\n", Get_ConversionVal(adc_val_pc2));
printf("PC3:%04d\r\n", Get_ConversionVal(adc_val_pc3));
#endif
Delay_Ms(2);
}
}
