I am making a USB sound card, which is a USB Composite Device. The Firmware is written, and now I want to make an app for the PC host. I need to write data to the HID endpoint4. When I open the device...
I use a QQ2440 board and a FriendlyARM 8.4'' LCD. After I downloaded the nk.bin of wince4.2 that came with the CD, the LCD screen displayed normally, but when I changed to the nk.bin of wince5.0, the ...
The topic is as follows: Design an embedded system for a specific application. Requirements: 1. Have a complete system design plan 2. Have a complete description of the system plan 3. Have a correspon...
The chip samples given at the TI seminar were sent by FedEx at an incredibly fast speed from Shanghai to Beijing. Except for the 430 chip, the rest were BGA packages and could not be used. They could ...
How to remove EEPROM data in .hex file? Thanks in advance. Note: Use PIC 150K to write PIC16F628A. The programmer cannot pre-write EEPROM. Remove EEPROM data in Hex file....
Hello? Under WIN2000, Ethernet network, dual network card hot backup, that is, if one network card is broken, the other redundant network card will hot switch, and the two network cards have the same ...
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
With the rapid development of science and technology, especially the widespread application of digital technology and various ultra-large-scale integrated circuits, electronic equipment, especially...[Details]
Sailing is gaining more and more attention. How to use modern technology to assist training and improve competition results is particularly important. Considering the real-time data collection in t...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
I. Introduction
In the field of power conversion, isolated converters (forward, flyback, and double-ended) with low output DC voltage all use MOSFET as the rectifier device. Since these devi...[Details]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[Details]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect t...[Details]
Since the No. 4 blast furnace of Handan Iron and Steel was put into operation in 1993, its external equipment has been seriously aged, and the original PLC control system TDC3000 of the hot blast furn...[Details]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
Smart lighting control systems provide high controllability for various buildings and further enhance the level of green energy. They are the core products of energy conservation and digital techn...[Details]
With the continuous consumption of earth's energy and the scarcity of resources, the harm of greenhouse effect to human beings, and the serious pollution of the atmosphere to the earth, the intern...[Details]
Embedded System
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