如何快速学会单片机编程并应用？

  #include<reg51.h>       //寄存器定义
  #include<stdio.h>       //一般I/O口定义
  /***以下是全局变量定义*********/
  sbit LED=P1^0;      //LED灯连接在P1.0上
  int data i;         //定义一个整型全局变量
  /*********主程序开始***************/
  void  main(void)
  {  while(1)
     {  LED=0;     //LED灯点亮
        for(i=0;i<1000;i++);   //延时
        LED=1;           //LED灯熄灭
        for(i=0;i<1000;i++);   //延时
      }
  }


  #include<reg51.h>       //寄存器定义
  #include<stdio.h>       //一般I/O口定义
  /***以下是全局变量定义*********/
  sbit LED=P1^0;      //LED灯连接在P1.0上
  int data i;         //定义一个整型全局变量
  LED_demo()       //LED函数
  {     LED=0;     //LED灯点亮
        for(i=0;i<1000;i++);   //延时
        LED=1;           //LED灯熄灭
        for(i=0;i<1000;i++);   //延时  
  }
  /*********主程序开始***************/
  void  main(void)
  {  while(1)
     {  
     	 LED_demo();
      }
  }
  
/*
  Blink
  Turns on an LED on for one second, then off for one second, repeatedly.

  Most Arduinos have an on-board LED you can control. On the UNO, MEGA and ZERO 
  it is attached to digital pin 13, on MKR1000 on pin 6. LED_BUILTIN is set to
  the correct LED pin independent of which board is used.
  If you want to know what pin the on-board LED is connected to on your Arduino model, check
  the Technical Specs of your board  at https://www.arduino.cc/en/Main/Products
  
  This example code is in the public domain.

  modified 8 May 2014
  by Scott Fitzgerald
  
  modified 2 Sep 2016
  by Arturo Guadalupi
  
  modified 8 Sep 2016
  by Colby Newman
*/


// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);                       // wait for a second
  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);                       // wait for a second
}

示例2 51+arduino

#include<reg52.h>					//预处理命令，reg52.h是一个头文件
#include<stdio.h>
void Function1(void);				//自定义函数Function1声明
unsigned int ch;//全局变量声明

void main(void)					//主函数
{


	SCON=0x50;               		//SCON:模式1,8bit异步串口通信
	TMOD=0x20;               		//TMOD:定时器1为模式2,8bit自动装载方式
	TH1=221;                 		//TH1:1200bit/s的装载值,16MHz
	TR1=1;                   		//TR1:timer1运行
	TI=1;                    		//TI:设置为1,以发送第一个字节

	while(ch<=5)
	{ 
		Function1( );//调用自定义函数
		printf("char=%d
",ch);//程序语句
	}
	while(1);
}
void Function1(void)				//自定义函数Function1
{	
	unsigned char ps;				//自定义函数内部变量声明
	ps=1;
	ch=ch+ps;
}


#include<reg52.h>					//预处理命令，reg52.h是一个头文件
#include<stdio.h>
void Function1(void);				//自定义函数Function1声明
void Init1(void);
unsigned int ch;//全局变量声明

void main(void)					//主函数
{
	Init1();
	while(ch<=5)
	{ 
		Function1( );//调用自定义函数
		printf("char=%d
",ch);//程序语句
	}
	while(1);
}
void Function1(void)				//自定义函数Function1
{	
	unsigned char ps;				//自定义函数内部变量声明
	ps=1;
	ch=ch+ps;
}
void Init1(void)
{


	SCON=0x50;               		//SCON:模式1,8bit异步串口通信
	TMOD=0x20;               		//TMOD:定时器1为模式2,8bit自动装载方式
	TH1=221;                 		//TH1:1200bit/s的装载值,16MHz
	TR1=1;                   		//TR1:timer1运行
	TI=1;                    		//TI:设置为1,以发送第一个字节
}


/*
  Serial Call and Response in ASCII
 Language: Wiring/Arduino

 This program sends an ASCII A (byte of value 65) on startup
 and repeats that until it gets some data in.
 Then it waits for a byte in the serial port, and
 sends three ASCII-encoded, comma-separated sensor values,
 truncated by a linefeed and carriage return,
 whenever it gets a byte in.

 Thanks to Greg Shakar and Scott Fitzgerald for the improvements

  The circuit:
 * potentiometers attached to analog inputs 0 and 1
 * pushbutton attached to digital I/O 2



 Created 26 Sept. 2005
 by Tom Igoe
 modified 24 Apr 2012
 by Tom Igoe and Scott Fitzgerald

 This example code is in the public domain.

 http://www.arduino.cc/en/Tutorial/SerialCallResponseASCII

 */

int firstSensor = 0;    // first analog sensor
int secondSensor = 0;   // second analog sensor
int thirdSensor = 0;    // digital sensor
int inByte = 0;         // incoming serial byte

void setup() {
  // start serial port at 9600 bps and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }


  pinMode(2, INPUT);   // digital sensor is on digital pin 2
  establishContact();  // send a byte to establish contact until receiver responds
}

void loop() {
  // if we get a valid byte, read analog ins:
  if (Serial.available() > 0) {
    // get incoming byte:
    inByte = Serial.read();
    // read first analog input:
    firstSensor = analogRead(A0);
    // read second analog input:
    secondSensor = analogRead(A1);
    // read  switch, map it to 0 or 255L
    thirdSensor = map(digitalRead(2), 0, 1, 0, 255);
    // send sensor values:
    Serial.print(firstSensor);
    Serial.print(",");
    Serial.print(secondSensor);
    Serial.print(",");
    Serial.println(thirdSensor);
  }
}

void establishContact() {
  while (Serial.available() <= 0) {
    Serial.println("0,0,0");   // send an initial string
    delay(300);
  }
}

未完待续

如何快速学会单片机编程并应用？

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