I changed the endpoint of the Keil\ARM\Examples\ST\STM32F10xUSBLib\Demos\Custom_HID example to endpoint 2, and an error occurred. What's going on?0x82, /*bEndpointAddress: Endpoint Address (IN)*/0x03,...
A few years ago, Heathrow International Airport in London, the capital of the United Kingdom, quietly installed a perspective detector that can "see through" all the clothes of passengers. Of course, ...
It's been a while since I got the board, and I've only had time to play with it these days... The first thing to do is to connect the board to the computer with a data cable, and then install the driv...
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
Currently, high-frequency and high-efficiency DCDC converters are increasingly used in automotive electronic systems.
High switching frequency can use smaller power inductors and output filter...[Details]
1 Introduction
With the development of computer technology and information technology in the world, the global information age has arrived. All countries are formulating their own development p...[Details]
Some people think: as long as the program runs well, it doesn't matter how the original program is written. But this is absolutely not the case. Software is not completed in one go, and it is neces...[Details]
UDN2916LB is a two-phase stepper motor bipolar driver integrated circuit launched by SANKEN. It can drive dual-winding bipolar stepper motors and is particularly suitable for controlling dual-step ...[Details]
According to a survey by the International Energy Agency, Asia and Australia used 1.65 trillion liters of oil for energy in 2004. The survey also showed that since 1990, the demand for oil has been...[Details]
UPS is an uninterruptible power supply (UPS). This device can ensure that after a power outage in the computer system, users can continue to work for a period of time and save files urgently, witho...[Details]
In the field of video surveillance, video compression encoding formats have evolved from M-JPEG, H.263, MPEG4 to H.264. Currently, H.264 is the mainstream compression algorithm. Its biggest advantage ...[Details]
In recent years, information technology based on microelectronics and computer technology has developed rapidly, and ultrasonic non-destructive testing instruments have also gained unpreceden...[Details]
1. Architecture and operation of electronic toll collection system
The basic principle of the electronic toll collection system is to enable a special device (on-board unit) installed on t...[Details]
As the trend towards miniaturization continues, new packaging methods and methods of interconnecting integrated circuits have been developed. Today, "system on chip" refers to a packaging method th...[Details]
Communication protocol: The first byte, MSB is 1, which is the first byte mark, the second byte, MSB is 0, which is the non-first byte mark, and so on... The last byte is the XOR checksum of the la...[Details]
The treatment capacity of a sewage treatment plant in Shanghai is 10,000 m³/day, and the number of monitoring points is not large. The selection of S7-300 PLC plus Beijing Dingshi DS300B distributed I...[Details]
Comparison of electrostatic testing between automotive electronics and ordinary electronic products
Electrostatic discharge is a natural phenomenon. When two materials with different di...[Details]
Introduction: At present, the main grounding form of the low-voltage power distribution system in our city is only one TN-C grounding method. Nowadays, there are more and more types of electrical e...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
