C51 single chip microcomputer, an entry-level tutorial for lighting up small lights

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• 51 First experience of single chip microcomputer

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• Keil uvision5 C51 edition ：

link ：https://pan.baidu.com/s/1LI7ucKVBFwpx2VMOoHFmMg

Extraction code ：d8u6

There is an activation step in the installation step , I didn't turn off the firewall , No success , But it does not affect the use .

• Proteus 8.6 SP2 Professional：

link ：https://pan.baidu.com/s/1RbKt1XuDLZITgbVDcsmwWQ

Extraction code ：ynt7

Two 、keli Use

1、 Create a project

open Keil Software , Click on the top of the toolbar project, choice new μVision Project...

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2、 New file , Remember to save , For writing code

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You can use the shortcut key Ctrl+S Preservation

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Note the file suffix here .c Used for compiling C The program

3、 To configure 、 Add the document

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Here we are , Completed the environment configuration , It can be programmed ！

3、 ... and 、proteus Use

1、 Create project

open proteus Software , Click on the top left File, Click again New Project, This page appears

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You may not choose 80C51, Come according to your own needs

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Complete project creation ！

2、 Build a virtual circuit

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Four 、 Programming , Run the program

1、 Code writing

#include <reg52.h>
sbit led = P1^0;  // Here is the port p1^0, Give a name 
void main(){
	while(1){     //while The death of the loop , Will always carry out while Contents of Li 
		led = 0;  // Give port p1^0 Assign a low level , So that the small lamp forms a circuit ,1 For high level ,0 For low level 
	}
}

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This completes the writing of the code ！

2、 The program runs

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Click the run button in the lower left corner to complete the operation

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If the code runs successfully , Failed to run , You can refer to here ： Solution portal

3、 Running results

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The figure is visible , When I click the run button , The little light is on , But I hit the end button , The small light goes out

（ harm , Blue light , It's not easy to observe ）

5、 ... and 、 A little more advanced ： Running water lamp

1、 Virtual circuit

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2、 Code

#include <reg51.h>
#define uint unsigned int 
#define uchar unsigned char
	
uchar table[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};// Each one corresponds to a small lamp 
uchar p;
int x;

void main()
{
	x=50000;  // Prepare a variable in advance , Used for delay action , Otherwise, the small lamp changes too fast  
	while(1)
		{
		  for(p=0;p<8;p++)  // loop , Turn the small lights on 
		  {
		  	P1=table[p];
				while(x--);
		  }
		}
}

3、 Running results

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6、 ... and 、 Article reference ：

51 Introduction to single chip microcomputer （1）

51 Single chip microcomputer LED Lighten up 、 Flashing and running water lamp are realized

author ： Stars in the distance CSDN：https://blog.csdn.net/qq_44921056

Tencent cloud ：https://cloud.tencent.com/developer/column/91164

This article is only for communication learning , Without the permission of the author , Prohibited reproduced , Let alone for other purposes , Offenders will investigate .