51 MCU pin function definition, internal block diagram-EEWORLD

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Reference address：51 MCU pin function definition, internal block diagram

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Summary of MCS-51 MCU instruction system

The MCS-51 single-chip microcomputer instruction system has a total of 111 instructions, which are divided into five categories according to their functions: (1) Data transmission class 28 (2) Arithmetic operations 24 (3) Logical operations 25 (4) Control transfer category 17 (5) Bit operation class 17 (1) Data tran

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Design of a logic non-circulating reversible speed regulation system based on 51 single chip microcomputer

Here is a design of a logic non-circulating reversible speed control system based on a single-chip microcomputer. The system design adopts a fully digital circuit to realize functions such as digital pulse triggering, digital speed setting detection and digital PI algorithm. The speed and current regulation, logical

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Design of a logic non-circulating reversible speed regulation system based on 51 single chip microcomputer

51 Microcontroller Basics: Digital Tube (1)

principle: The digital tube has 8 LED lights, namely abcdefgh, with common cathode and common anode. If you set high and low levels, the corresponding LED will light up and then display the number you want to display. Code: #include reg52.h #define SMG P0 //Macro definition digital tube void main(void) {

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51 MCU matrix keyboard PROTEUS simulation demonstration

Original address: 51 single chip matrix keyboard PROTEUS simulation demonstration (picture, program) Author: awesome haha The procedure is as follows: #include AT89x52.h #define uchar unsigned char; uchar key_val=0; //define key value, the initial default is 0 uchar code TAB ={0xc0,0xf9,0xa4,0xb0,0x99,

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Counter of single chip microcomputer C51

The hardware circuit of this part is shown in the figure. Some pins of U1's P0 port and P2 port constitute a 6-bit LED digital tube drive circuit. The digital tube adopts a common anode type and uses a PNP transistor as the driver of the chip select terminal. The emitters of all transistors are connected together and

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Counter of single chip microcomputer C51

Application of 51 MCU and nRF401 chip in RFID system

1. RFID System Overview RFID is a contactless identification system. It is an automatic identification technology that has emerged since the 1990s. It uses wireless radio frequency to perform contactless two-way communication to achieve identification purposes and exchange data. The data is stored in an ele

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Application of 51 MCU and nRF401 chip in RFID system

51 MCU Proteus simulation of basketball game timer

Schematic diagram of 51 single-chip microcomputer simulation timer: Preview of some source code: #include "main.h" #include "delay.h" #include "keypad.h" #include "display.h" void main() { INT0_Initial(); Time0_Initial(); delay_ms(10); LED = 0; while(1) {

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51 MCU Proteus simulation of basketball game timer

BASCOM-8051 development environment single chip microcomputer programming system based on BASIC language

The BASCOM-8051 development environment is a single-chip microcomputer programming system based on the BASIC language. It is easy to learn and use, has powerful functions, and has a short development cycle. 　　1. Command Classification Examples 　　1. Pseudo-instructions 　　Pseudo-instructions are some i

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