163 lines
4.8 KiB
C
163 lines
4.8 KiB
C
/********************************** (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.
|
|
* Attention: This software (modified or not) and binary are used for
|
|
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
|
|
*******************************************************************************/
|
|
|
|
/*
|
|
*@Note
|
|
*Dual ADC injection simultaneous sampling routine:
|
|
*ADC1 channel 1 (PA1), ADC2 channel 2 (PA3).
|
|
*
|
|
*Note:only applied to CH32V20x_D6
|
|
*/
|
|
|
|
#include "debug.h"
|
|
|
|
/* Global Variable */
|
|
vu16 ADC_val1, ADC_val2;
|
|
vs16 Calibrattion_Val1 = 0;
|
|
vs16 Calibrattion_Val2 = 0;
|
|
|
|
/*********************************************************************
|
|
* @fn ADC_Function_Init
|
|
*
|
|
* @brief Initializes ADC collection.
|
|
*
|
|
* @return none
|
|
*/
|
|
void ADC_Function_Init(void)
|
|
{
|
|
ADC_InitTypeDef ADC_InitStructure = {0};
|
|
GPIO_InitTypeDef GPIO_InitStructure = {0};
|
|
|
|
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
|
|
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
|
|
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC2, ENABLE);
|
|
RCC_ADCCLKConfig(RCC_PCLK2_Div8);
|
|
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_3;
|
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
|
|
GPIO_Init(GPIOA, &GPIO_InitStructure);
|
|
|
|
ADC_DeInit(ADC1);
|
|
ADC_DeInit(ADC2);
|
|
|
|
ADC_InitStructure.ADC_Mode = ADC_Mode_InjecSimult;
|
|
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
|
|
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
|
|
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigInjecConv_None;
|
|
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
|
|
ADC_InitStructure.ADC_NbrOfChannel = 1;
|
|
ADC_InitStructure.ADC_OutputBuffer = ADC_OutputBuffer_Disable;
|
|
ADC_InitStructure.ADC_Pga = ADC_Pga_1;
|
|
|
|
ADC_Init(ADC1, &ADC_InitStructure);
|
|
|
|
ADC_InjectedSequencerLengthConfig(ADC1, 1);
|
|
ADC_InjectedChannelConfig(ADC1, ADC_Channel_1, 1, ADC_SampleTime_239Cycles5);
|
|
|
|
ADC_DMACmd(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_Val1 = Get_CalibrationValue(ADC1);
|
|
|
|
|
|
ADC_Init(ADC2, &ADC_InitStructure);
|
|
ADC_InjectedSequencerLengthConfig(ADC2, 1);
|
|
ADC_InjectedChannelConfig(ADC2, ADC_Channel_3, 1, ADC_SampleTime_239Cycles5);
|
|
|
|
ADC_SoftwareStartInjectedConvCmd(ADC2, ENABLE);
|
|
ADC_Cmd(ADC2, ENABLE);
|
|
|
|
ADC_BufferCmd(ADC2, DISABLE); //disable buffer
|
|
ADC_ResetCalibration(ADC2);
|
|
while(ADC_GetResetCalibrationStatus(ADC2));
|
|
ADC_StartCalibration(ADC2);
|
|
while(ADC_GetCalibrationStatus(ADC2));
|
|
Calibrattion_Val2 = Get_CalibrationValue(ADC2);
|
|
|
|
}
|
|
|
|
/*********************************************************************
|
|
* @fn Get_ConversionVal1
|
|
*
|
|
* @brief Get Conversion Value.
|
|
*
|
|
* @param val - Sampling value
|
|
*
|
|
* @return val+Calibrattion_Val - Conversion Value.
|
|
*/
|
|
u16 Get_ConversionVal1(s16 val)
|
|
{
|
|
if((val + Calibrattion_Val1) < 0|| val==0)
|
|
return 0;
|
|
if((Calibrattion_Val1 + val) > 4095|| val==4095)
|
|
return 4095;
|
|
return (val + Calibrattion_Val1);
|
|
}
|
|
|
|
/*********************************************************************
|
|
* @fn Get_ConversionVal2
|
|
*
|
|
* @brief Get Conversion Value.
|
|
*
|
|
* @param val - Sampling value
|
|
*
|
|
* @return val+Calibrattion_Val - Conversion Value.
|
|
*/
|
|
u16 Get_ConversionVal2(s16 val)
|
|
{
|
|
if((val + Calibrattion_Val2) < 0)
|
|
return 0;
|
|
if((Calibrattion_Val2 + val) > 4095)
|
|
return 4095;
|
|
return (val + Calibrattion_Val2);
|
|
}
|
|
|
|
/*********************************************************************
|
|
* @fn main
|
|
*
|
|
* @brief Main program.
|
|
*
|
|
* @return none
|
|
*/
|
|
int main(void)
|
|
{
|
|
USART_Printf_Init(115200);
|
|
SystemCoreClockUpdate();
|
|
Delay_Init();
|
|
printf("SystemClk:%d\r\n", SystemCoreClock);
|
|
printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() );
|
|
ADC_Function_Init();
|
|
printf("CalibrattionValue1:%d\n", Calibrattion_Val1);
|
|
printf("CalibrattionValue2:%d\n", Calibrattion_Val2);
|
|
|
|
while(1)
|
|
{
|
|
ADC_SoftwareStartInjectedConvCmd(ADC1, ENABLE);
|
|
Delay_Ms(100);
|
|
|
|
ADC_SoftwareStartInjectedConvCmd(ADC1, DISABLE);
|
|
Delay_Ms(100);
|
|
|
|
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_JEOC));
|
|
ADC_val1 = ADC_GetInjectedConversionValue(ADC1, ADC_InjectedChannel_1);
|
|
ADC_val2 = ADC_GetInjectedConversionValue(ADC2, ADC_InjectedChannel_1);
|
|
|
|
printf("JADC1 ch2=%04d\r\n", Get_ConversionVal1(ADC_val1));
|
|
printf("JADC2 ch3=%04d\r\n", Get_ConversionVal2(ADC_val2));
|
|
}
|
|
}
|