stm32f4 chip

0 Introduction There are many types and styles for the design and development of digital voltage meters. Traditional Digital Voltage meters have their own characteristics and are suitable for manual measurement at the site, however, to complete remote measurement and further process the measurement data, the traditional digital voltmeter cannot be used. Therefore, a digital voltmeter Based on PC communication is designed in this paper. This table can transfer measurement data and process measure

Simple Intelligent Robot Based on AT89C51 Single-Chip Microcomputer Author: Zhang Hong, Wang dehe time: Source: Electronic EngineerBrowse comments Introduction With the continuous development of microelectronics technology, the integration of microprocessor chips is getting higher and higher, the single-chip microcomputer can integrate multiple circuits, including CPU, memory, Timer

This article is original by purplesword (jzj1993). For more information, see. Original web site http://blog.csdn.net/jzj1993 We have introduced several solutions for preparing the experiment board. Here we will first introduce solution 1. I will build a simple single-chip microcomputer lab Board together with you to enjoy hands-on practice. We have two ways to build our own lab board. One is to use a bread board, and the other is to use a universal we

Single-chip microcomputer minimum system, or the smallest application system, refers to the system which is composed of the least component and the microcontroller can work. for the 51 series microcontroller, the minimum system should generally include: single-chip microcomputer, crystal oscillator circuit, reset circuit. a minimum system circuit diagram for a 51 microcontroller is given below. Descripti

Hardware platform: stm32f407 Library files: stm32f4xx_dsp_stdperiph_lib_v1.6.1 Serial: USART6 TX RX STM32F4 has two DMA controllers, mounted on the AHB bus, each DMA controller has eight stream, each stream has eight channel. A channel can use more than one stream at a time, and a stream cannot use multiple channel at the same time. Send data: 1. When the DMA sends the energy, and the data buffer has the data, sends the data 2.DMA send complete afte

After the chip sample stream comes back, all people are most concerned about whether the new functions are normal and whether the problems found in the old version are solved, this requires replacing the old chip in the verification system and re-running the system for verification. In the sample phase, various strange problems may occur due to the poor encapsulation and low yield rate. The

The 40 pins of a microcontroller can be divided into 4 categories: power , clock , control , and I/O pins .1. Power supply:⑴VCC-Chip power supply, connect to the + +;⑵vss-ground end;2. Clock:XTAL1, XTAL2-crystal oscillator circuit inverting input and output terminals. 3. Control lines: control lines Total 4, ⑴ale/prog: Address latch allow/on-chip EPROM programming pulse ①ale function: Used

Source: Https://www.synopsys.com/dw/dwtb.php?a=hsic_usb2_deviceWhat is HSIC?HSIC (high-speed inter-chip) is an industry standard for USB Chip-to-chip interconnect with a 2-signal (strobe, data) sour Ce synchronous serial interface using a MHz DDR signaling to provide only high-speed (480 Mbps data rate). No external cables or connectors and hot plug-n-play is sup

Advantages and disadvantages of embedding an operating system in a Single Chip Microcomputer As early as 1960s, some people began to study and develop embedded operating systems. However, it has not been mentioned more recently in China. The increasing importance of it in areas requiring real-time processing, such as communication, electronics, and automation attracts more and more attention. However, people often talk about some famous commercial

this thing IDE, Kaka, that can be particularly spectacular. The installation is very simple (thanks to the Debian Ubuntu Strong warehouse):$ sudo apt-get install as31 emu8051 dis51 Cycfx2progOh, remember that Mr. Mao once taught us to "drink water do not forget to dig well people", we look at the developers of these tools:A. Compiler As31:paul Stoffrege Master design, click here to view;B. Simulator emu8051: An American University professor wrote, click here to view;C. Anti-compilation DIS51: A

Environment:Windows7 64B,JDK64B,MYECLIPSE8.5,RXTX Development Package, Stc,keil, Geshe Beacon, 51 single-chip microcomputer, RS232USB to serial line.Lower machine C code # include #include #define Inbuf_len 7//Data lengthunsigned char Inbuf1[inbuf_len];unsigned char checksum,count3,count=0;Bit read_flag=0;unsigned char com[]= "hello\n";void Init_serialcomm (void){tmod=0x20;//setting timer 1 for Mode 2th1=0xfd;//set initial value setting baud rateTL1=0

There are many books which say that variables are best to assign initial values. But why should the initial value be? What kind of accident might happen if we don't assign an initial value? The following is my analysis of the implementation of the 51 single-chip microcomputer for the compiler to see the Mcu,keil.It is well known that variables are stored in RAM, lost after power-down, and are all 0 by default after power-up. Then the value of the vari

u disk mainly has two kinds of packaging structure: 1. Traditional for PCBA package structure. 2. Black Colloid package structure. The interior is mainly composed of a PCB board + main CONTROL + crystal oscillator + capacitive capacitor +usb head +led head +flash (Flash memory), the following figure: PCBA Package Black Colloid Pack (PS: Constant Add letter U disk specified chip packaging structure) Features: simple process and low cos