【沁恒WCH CH32V307V-R1开发板读取板载温度实验】
- 1. 前言
- 2. 软件配置
- 2.1 安装MounRiver Studio
- 3. ADC项目测试
- 3.1 打开ADC工程
- 3.2 编译项目
- 4. 下载验证
- 4.1 接线
- 4.2 演示效果
- 5. 小结
1. 前言
- ADC 模块包含 2 个 12 位的逐次逼近型的模拟数字转换器,最高 14MHz 的输入时钟。支持 16 个
外部通道和 2 个内部信号源采样源。可完成通道的单次转换、连续转换,通道间自动扫描模式、间
断模式、外部触发模式、双重采样等功能。可以通过模拟看门狗功能监测通道电压是否在阈值范围
内,本次实验采用一路ADC间隔均值采样,然后打印输出采样值和温度值,熟悉STM32开发用易上手配置。✨✨✨- 比赛详情官网:https://www.wch.cn/RISC-V-MCU-competition/#/?indexFromSubmit=0
这是使用MounRiver Studio开发的项目,支持在RISC-V核心基础硬件CH32V307评估板上使用带有msh Shell的RTOS快速原型。
MCU:CH32V307VCT6,主频 144MHz,FLASH和RAM可配置
l 12 位分辨率
l 支持 16 个外部通道和 2 个内部信号源采样
l 多通道的多种采样转换方式:单次、连续、扫描、触发、间断等
l 数据对齐模式:左对齐、右对齐
l 采样时间可按通道分别编程
l 规则转换和注入转换均支持外部触发
l 模拟看门狗监测通道电压,自校准功能
l 双重模式
l ADC 通道输入范围:0≤VIN≤VDDA
l 输入增益可调,可实现小信号放大采样
首先,应安装 CH32V307 评估板的驱动程序,打开设备管理器查看USB 端口和外部接口已准备就绪。
2. 软件配置
2.1 安装MounRiver Studio
环境搭建教程:https://blog.csdn.net/VOR234/article/details/128932474
3. ADC项目测试
3.1 打开ADC工程
评估板说明及参考例程:https://www.wch.cn/downloads/CH32V307EVT_ZIP.html
进入EXAM目录,就有对应的外设教程
进入DInternal_Temperature
文件下,双击Internal_Temperature.wvproj
,
打开项目工程如下,main.c
在user
文件夹下
main.c
,参考电压是3.3V
/********************************** (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
Internal temperature sensor routine:
Through the ADC channel 16(PA2), the output voltage value and temperature value of the internal
temperature sensor are collected.
*/
#include "debug.h"
/* Global Variable */
s16 Calibrattion_Val = 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_ADCCLKConfig(RCC_PCLK2_Div8);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
ADC_DeInit(ADC1);
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
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_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
ADC_TempSensorVrefintCmd(ENABLE);
}
/*********************************************************************
* @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_RegularChannelConfig(ADC1, ch, 1, ADC_SampleTime_239Cycles5 );
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC ));
val = ADC_GetConversionValue(ADC1);
return val;
}
/*********************************************************************
* @fn Get_ADC_Average
*
* @brief Returns ADCx conversion result average 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 val - The Data conversion value.
*/
u16 Get_ADC_Average(u8 ch,u8 times)
{
u32 temp_val=0;
u8 t;
u16 val;
for(t=0;t<times;t++)
{
temp_val+=Get_ADC_Val(ch);
Delay_Ms(5);
}
val = temp_val/times;
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;
s32 val_mv;
SystemCoreClockUpdate();
Delay_Init();
USART_Printf_Init(115200);
printf("SystemClk:%d\r\n",SystemCoreClock);
printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() );
ADC_Function_Init();
printf("CalibrattionValue:%d\n", Calibrattion_Val);
while(1)
{
ADC_val = Get_ADC_Average( ADC_Channel_TempSensor, 10 );
Delay_Ms(500);
ADC_val = Get_ConversionVal(ADC_val);
printf( "ADC-Val:%04d\r\n", ADC_val);
val_mv = (ADC_val*3300/4096);
printf("mv-T-%d,%0d\n",val_mv ,TempSensor_Volt_To_Temper(val_mv));
Delay_Ms(2);
}
}
3.2 编译项目
开发板数据线连接电脑就可以开始连接调试🛹🛹🛹,首先开始编译,编译成功如下
然后下载,下载成功如下
4. 下载验证
4.1 接线
根据程序设计调试,可以用手指触摸芯片,即可输出相关温度变化
4.2 演示效果
代码下载后验证,点击串口调试器,设置串口参数确认。
复位运行成功如下打印温度变化,从12度到15度
SystemClk:96000000
ChipID:30700518
CalibrattionValue:9
ADC-Val:1786
mv-T-1438,12
ADC-Val:1781
mv-T-1434,13
ADC-Val:1777
mv-T-1431,13
ADC-Val:1775
mv-T-1430,13
ADC-Val:1773
mv-T-1428,14
ADC-Val:1772
mv-T-1427,14
ADC-Val:1771
mv-T-1426,14
ADC-Val:1770
mv-T-1426,14
ADC-Val:1768
mv-T-1424,15
ADC-Val:1768
mv-T-1424,15
ADC-Val:1769
mv-T-1425,15
ADC-Val:1768
mv-T-1424,15
ADC-Val:1767
mv-T-1423,15
ADC-Val:1767
mv-T-1423,15
ADC-Val:1767
5. 小结
🥳🥳🥳通过对这篇文章我们掌握了沁恒WCH CH32V307V-R1开发板读取板载温度实验,这样就可以设置适当工作环境防寒暑,确保设备正常接下来会有许多有趣的实验,尝试与Arduino通讯做更加好玩的实验,进而丰富我们的生活。🛹🛹🛹从而实现对外部世界进行感知,充分认识这个有机与无机的环境,🥳🥳🥳科学地合理地进行创作和发挥效益,然后为人类社会发展贡献一点微薄之力。🤣🤣🤣
参考文献:
- CH32V307数据手册:https://www.wch.cn/downloads/CH32V20x_30xDS0_PDF.html
- CH32V307参考手册:https://www.wch.cn/downloads/CH32FV2x_V3xRM_PDF.html
- 评估板说明及参考例程:https://www.wch.cn/downloads/CH32V307EVT_ZIP.html
- CH343SER.ZIP串口地址:https://www.wch.cn/downloads/CH343SER_ZIP.html
- MRS最新V1.51版本安装包:www.mounriver.com
- 环境搭建教程:https://blog.csdn.net/VOR234/article/details/128932474
- 【沁恒WCH CH32V307V-R1开发板两路ADC读取实验】:https://blog.csdn.net/VOR234/article/details/128941074