bstanwell/ch32v20x-examples
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qiyongshuang
2026-01-07 10:43:29 +08:00
parent 6209b6e7f9
commit d161f84c90
551 changed files with 23169 additions and 1518 deletions
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EVT/EXAM/ADC/TIM_Trigger/User/main.c
+16 -54
View File
@@ -1,8 +1,8 @@
/********************************** (C) COPYRIGHT *******************************
* File Name : main.c
* Author : WCH
* Version : V1.0.0
* Date : 2021/06/06
* Version : V1.0.1
* Date : 2025/09/22
* Description : Main program body.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
@@ -13,8 +13,8 @@
/*
*@Note
*TIM trigger ADC conversion routine:
*ADC channel 1 (PA1) - injection group channel, TIM2 CH1 pin (PA0) TIM trigger,
*In this mode, an ADC conversion is triggered by an event on TIM2 CH1 TIM trigger, and a JEOC interrupt is generated after
*ADC channel 4 (PA1) - injection group channel, TIM1 CH4 pin TIM trigger,
*In this mode, an ADC conversion is triggered by an event on TIM1 CH4 TIM trigger, and a JEOC interrupt is generated after
*the conversion is completed.
*
*/
@@ -23,7 +23,7 @@
#include "debug.h"
/* Global Variable */
s16 Calibrattion_Val = 0;
vs16 Calibrattion_Val = 0;
/*********************************************************************
* @fn ADC_Function_Init
@@ -50,12 +50,13 @@ void ADC_Function_Init(void)
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigInjecConv_T1_CC4|ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 1;
ADC_Init(ADC1, &ADC_InitStructure);
ADC_InjectedSequencerLengthConfig(ADC1, 1);
ADC_ExternalTrigInjectedConvConfig(ADC1, ADC_ExternalTrigInjecConv_T1_CC4);
ADC_InjectedChannelConfig(ADC1, ADC_Channel_4, 1, ADC_SampleTime_7Cycles5);
ADC_ExternalTrigInjectedConvCmd(ADC1, ENABLE);
@@ -75,37 +76,8 @@ void ADC_Function_Init(void)
while(ADC_GetCalibrationStatus(ADC1));
Calibrattion_Val = Get_CalibrationValue(ADC1);
// ADC_BufferCmd(ADC1, ENABLE); //enable buffer
}
u16 Get_ADC_Val(u8 ch)
{
u16 val;
ADC_RegularChannelConfig(ADC1, ch, 1, ADC_SampleTime_7Cycles5);
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC));
val = ADC_GetConversionValue(ADC1);
return val;
}
void GPIO_Toggle_INIT(void)
{
GPIO_InitTypeDef GPIO_InitStructure = {0};
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
/*********************************************************************
* @fn TIM1_PWM_In
*
@@ -116,17 +88,10 @@ void GPIO_Toggle_INIT(void)
void TIM1_PWM_In(u16 arr, u16 psc, u16 ccp)
{
GPIO_InitTypeDef GPIO_InitStructure = {0};
TIM_OCInitTypeDef TIM_OCInitStructure = {0};
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure = {0};
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA| RCC_APB2Periph_TIM1, ENABLE);
// RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
RCC_APB2PeriphClockCmd( RCC_APB2Periph_TIM1, ENABLE);
TIM_TimeBaseInitStructure.TIM_Period = arr;
TIM_TimeBaseInitStructure.TIM_Prescaler = psc;
@@ -141,13 +106,11 @@ void TIM1_PWM_In(u16 arr, u16 psc, u16 ccp)
TIM_OC4Init(TIM1, &TIM_OCInitStructure);
TIM_CtrlPWMOutputs(TIM1, ENABLE);
TIM_OC4PreloadConfig(TIM1, TIM_OCPreload_Disable);
TIM_ARRPreloadConfig(TIM1, ENABLE);
TIM_SelectOutputTrigger(TIM1, TIM_TRGOSource_Update);
TIM_Cmd(TIM1, ENABLE);
}
/*********************************************************************
* @fn Get_ConversionVal1
* @fn Get_ConversionVal
*
* @brief Get Conversion Value.
*
@@ -157,7 +120,7 @@ void TIM1_PWM_In(u16 arr, u16 psc, u16 ccp)
*/
u16 Get_ConversionVal(s16 val)
{
if((val + Calibrattion_Val) < 0)
if((val + Calibrattion_Val) < 0 || val==0)
return 0;
if((Calibrattion_Val + val) > 4095 || val==4095)
return 4095;
@@ -176,10 +139,10 @@ int main(void)
SystemCoreClockUpdate();
USART_Printf_Init(115200);
printf("SystemClk:%d\r\n", SystemCoreClock);
GPIO_Toggle_INIT();
ADC_Function_Init();
printf("CalibrattionValue:%d\n", Calibrattion_Val);
TIM1_PWM_In(7200,100-1,3600);
TIM1_PWM_In(7200-1,1000-1,3600);
while(1);
}
@@ -195,14 +158,13 @@ void ADC1_2_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
*/
void ADC1_2_IRQHandler()
{
u16 ADC_val,ADC;
u16 ADC_val;
if(ADC_GetITStatus(ADC1, ADC_IT_JEOC))
{
// printf("ADC Extline trigger conversion...\r\n");
printf("ADC Extline trigger conversion...\r\n");
ADC_val = ADC_GetInjectedConversionValue(ADC1, ADC_InjectedChannel_1);
ADC= Get_ADC_Val(ADC_Channel_5);
printf("%04d %04d\r\n",ADC_val ,ADC);
printf("JADC:%04d\r\n",Get_ConversionVal(ADC_val));
}
ADC_ClearITPendingBit(ADC1, ADC_IT_JEOC);