基于STM32F103RCT6的串口数据采集(4路ADC+4路数字量)源程序 -

#include "led.h"
#include "delay.h"
#include "sys.h"
#include "usart.h"
#include "lcd.h"
#include "adc.h"
#include "dma.h"
#define Channel_Number 4 // 通道数的宏定义
#define KEY0 GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_0)
#define KEY1 GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_1)
#define KEY2 GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_2)
#define KEY3 GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_3)
#define KEY0_PRES 1
#define KEY1_PRES 2
#define KEY2_PRES 3
#define KEY3_PRES 4
u16 AD_Digital_Value[Channel_Number]; //AD采样值
float AD_Analog_Value[Channel_Number]; //AD模拟电压值
void KEY_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOE,ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOE, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
u8 KEY_Scan1(u8 mode)
{
static u8 key_up=1;
if(mode)key_up=1;
if(key_up&&(KEY0==0))
{
delay_ms(10);
key_up=0;
if(KEY0==0)return KEY0_PRES;
// else if(KEY1==0)return KEY1_PRES;
// else if(KEY2==0)return KEY2_PRES;
// else if(KEY3==0)return KEY3_PRES;
}else if(KEY0==1)key_up=1;
return 0;
}
u8 KEY_Scan2(u8 mode)
{
static u8 key_up=1;
if(mode)key_up=1;
if(key_up&&(KEY1==0))
{
delay_ms(10);
key_up=0;
if(KEY1==0)return KEY1_PRES;
// else if(KEY1==0)return KEY1_PRES;
// else if(KEY2==0)return KEY2_PRES;
// else if(KEY3==0)return KEY3_PRES;
}else if(KEY1==1)key_up=1;
return 0;
}
u8 KEY_Scan3(u8 mode)
{
static u8 key_up=1;
if(mode)key_up=1;
if(key_up&&(KEY2==0))
{
delay_ms(10);
key_up=0;
if(KEY2==0)return KEY2_PRES;
}else if(KEY2==1)key_up=1;
return 0;
}
u8 KEY_Scan4(u8 mode)
{
static u8 key_up=1;
if(mode)key_up=1;
if(key_up&&(KEY3==0))
{
delay_ms(10);
key_up=0;
if(KEY3==0)return KEY3_PRES;
// else if(KEY1==0)return KEY1_PRES;
// else if(KEY2==0)return KEY2_PRES;
// else if(KEY3==0)return KEY3_PRES;
}else if(KEY3==1)key_up=1;
return 0;
}
int main(void)
{
u8 i;//定义一个变量
char a1 = 0;
char a2 = 0;
char a3 = 0;
char a4 = 0;
KEY_Init();
SystemInit();//延时初始化
delay_init(72); //延时初始化
NVIC_Configuration();//中断初始化
uart_init(9600);//串口初始化
LED_Init();//led灯初始化
LCD_Init();//lcd液晶显示屏初始化
POINT_COLOR=RED;//设置字体为红色
POINT_COLOR=BLUE;//设置字体为蓝色
ADC1_Configuration(); //ADC初始化
delay_ms(10);//延时
DMA_Configuration(DMA1_Channel1,(u32)&ADC1->DR,(u32)AD_Digital_Value,Channel_Number );//DMA1通道1；外设为ADC1；
DMA_Cmd(DMA1_Channel1, ENABLE);//启动DMA通道
ADC_SoftwareStartConvCmd(ADC1, ENABLE);//软件启动AD转换
while (1)
{
a1 = KEY_Scan1(1);
a2 = KEY_Scan2(1);
a3 = KEY_Scan3(1);
a4 = KEY_Scan4(1);
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC ));//等待转换结束
while(DMA_GetFlagStatus(DMA1_FLAG_TC1)==RESET);//等待传输完成否则第一位数据容易丢失
DMA_ClearFlag(DMA1_FLAG_TC1); //清除通道 1 传输完成标志
for( i=0;i<Channel_Number;i++)
{
AD_Analog_Value[i]=(float)AD_Digital_Value[i]*(3.3/4096); //将读取到的值存入数组里面
}
printf("\r\n 模拟信号1:%d 模拟电压1:%f \r\n",AD_Digital_Value[0],AD_Analog_Value[0]); //串口打印出来通道1的电压值以及测得的ad转化的值
printf("\r\n 模拟信号2:%d 模拟电压2:%f \r\n",AD_Digital_Value[1],AD_Analog_Value[1]); //串口打印出来通道2的电压值以及测得的ad转化的值
printf("\r\n 模拟信号3:%d 模拟电压3:%f \r\n",AD_Digital_Value[2],AD_Analog_Value[2]); //串口打印出来通道3的电压值以及测得的ad转化的值
printf("\r\n 模拟信号4:%d 模拟电压4:%f \r\n",AD_Digital_Value[3],AD_Analog_Value[3]); //串口打印出来通道4的电压值以及测得的ad转化的值
if(a1 == 1)
{
printf("\r\n 数字信号通道1为1\r\n");
}
if(a1 == 0)
{
printf("\r\n 数字信号通道1为0\r\n");
}
if(a2 == 1)
{
printf("\r\n 数字信号通道2为1\r\n");
}
if(a2 == 0)
{
printf("\r\n 数字信号通道2为0\r\n");
}
if(a3 == 1)
{
printf("\r\n 数字信号通道3为1\r\n");
}
if(a3 == 0)
{
printf("\r\n 数字信号通道3为0\r\n");
}
if(a4 == 1)
{
printf("\r\n 数字信号通道4为1\r\n");
}
if(a4 == 0)
{
printf("\r\n 数字信号通道4为0\r\n");
}
// LED0=!LED0;
delay_ms(100);
}
}

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