Proteus8.9仿真STM32F103 ADC源程序 -

/*******************************************************************************
*
* 软件功能: GPIO闪灯实验（软件延时方式）
*
*******************************************************************************/
#include "stm32f10x.h"
#include <stdio.h>
#include <string.h> // 加入此头文件后,可使用strstr库函数
#include <stdlib.h>
#include <stdint.h>
#include "led.h"
#include "key.h"
#include "usart.h"
#include "timer.h"
#include "adc.h"
u8 adcflag;
void RCC_Configuration(void)
{
// ErrorStatus HSEStartUpStatus; //定义外部高速晶体启动状态枚举变量
RCC_DeInit(); //复位RCC外部设备寄存器到默认值
//RCC_HSEConfig(RCC_HSE_ON); //打开外部高速晶振
//HSEStartUpStatus = RCC_WaitForHSEStartUp(); //等待外部高速时钟准备好
// if(HSEStartUpStatus == SUCCESS) //外部高速时钟已经准别好
// {
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //开启FLASH预读缓冲功能，加速FLASH的读取。所有程序中必须的用法.位置：RCC初始化子函数里面，时钟起振之后
FLASH_SetLatency(FLASH_Latency_2); //flash操作的延时
RCC_HCLKConfig(RCC_SYSCLK_Div1); //配置AHB(HCLK)时钟等于==SYSCLK
RCC_PCLK2Config(RCC_HCLK_Div1); //配置APB2(PCLK2)钟==AHB时钟
RCC_PCLK1Config(RCC_HCLK_Div2); //配置APB1(PCLK1)钟==AHB1/2时钟
RCC_PLLConfig(RCC_PLLSource_HSI_Div2 , RCC_PLLMul_2); //配置PLL时钟 == 外部高速晶体时钟 * 9 = 72MHz
RCC_PLLCmd(ENABLE); //使能PLL时钟
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) //等待PLL时钟就绪
{
}
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //配置系统时钟 = PLL时钟
while(RCC_GetSYSCLKSource() != 0x08) //检查PLL时钟是否作为系统时钟
{
}
// }
}
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
NVIC_InitStructure.NVIC_IRQChannel=EXTI4_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority= 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority= 1;
NVIC_InitStructure.NVIC_IRQChannelCmd= ENABLE;
NVIC_Init(&NVIC_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel=USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority= 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority= 1;
NVIC_InitStructure.NVIC_IRQChannelCmd= ENABLE;
NVIC_Init(&NVIC_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel=TIM2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority= 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority= 1;
NVIC_InitStructure.NVIC_IRQChannelCmd= ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void EXTI_Configuration(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);
EXTI_InitStructure.EXTI_Line= EXTI_Line4;
EXTI_InitStructure.EXTI_LineCmd=ENABLE;
EXTI_InitStructure.EXTI_Mode= EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger=EXTI_Trigger_Falling;
EXTI_Init(&EXTI_InitStructure);
EXTI_ClearITPendingBit(EXTI_Line4);
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB,GPIO_PinSource4);
}
void EXTI4_IRQHandler(void)
{
if(EXTI_GetFlagStatus(EXTI_Line4)!=RESET)
{
if(GPIO_ReadOutputDataBit(GPIOC,GPIO_Pin_15)==0)
{
GPIO_SetBits(GPIOC,GPIO_Pin_15);
}
else
{
GPIO_ResetBits(GPIOC,GPIO_Pin_15);
}
}
// EXTI_ClearFlag(EXTI_Line4);
EXTI_ClearITPendingBit(EXTI_Line4);
}
/*************************************************
函数: void GPIO_Configuration(void）
功能: GPIO配置
参数: 无
返回: 无
**************************************************/
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure; //定义GPIO初始化结构体
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_GPIOA,ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15 ;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 ;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
void delay(u32 tim)
{
for(;tim>0;tim--);
}
void delay_ms(u32 tim)
{
u16 i;
for(;tim>0;tim--)
{
for(i=2500;i>0;i--);
}
}
/*************************************************
函数: int main(void)
功能: main主函数
参数: 无
返回: 无
**************************************************/
int main(void)
{
u16 keytemp;
char buf[32];
char readbuf[32];
uint16_t advalue,temp;
float voltage;
//RCC_Configuration();
RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);
GPIO_Configuration();
NVIC_Configuration();
EXTI_Configuration();
USART1_Configuration();
TIMER2_Configuration();
ADC_Configuration();
ledinit();
keyinit();
USART_SendData(USART1,'A');
delay_ms(10);
while(1)
{
keytemp =keyscan();
switch(keytemp)
{
case 1:
led(1,ON);
led(2,OFF);
break;
case 2:
led(2,ON);
led(1,OFF);
break;
case 3:
led(1,ON);
led(2,ON);
break;
default:
led1off();
led2off();
break;
}
if(adcflag)
{
adcflag =0;
memset(buf, 0, 32);
memset(readbuf, 0, 32);
ADC_SoftwareStartConvCmd(ADC1, ENABLE); //软件启动ADC转换
//while(ADC_GetITStatus(ADC1,ADC_IT_EOC) == RESET);
delay(100000);
GPIO_ResetBits(GPIOC,GPIO_Pin_13);
advalue = ADC_GetConversionValue(ADC1);
advalue &=0x0FFF;
GPIO_ResetBits(GPIOC,GPIO_Pin_14);
voltage =(float)advalue*(5000/4096.0);
advalue = (uint16_t)voltage;
temp = advalue/1000;
printf("ADC Result:%d",temp);
temp= advalue%1000;
printf(".%d V\r\n",temp);
}
}
}

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