[i=s]This post was last edited by xujinxi on 2021-4-18 07:21[/i]When compiling the official example, the debug download failed, and the prompt is as follows. Has anyone encountered the same problem?In...
xujinxionsemi and Avnet IoT Innovation Design Competition
DOM is a standard interface for processing XML documents proposed by W3C. Qt implements the DOM Level 2 method of reading and writing XML documents without validation. , Helvetica, SimSun, sans-serif]...
LED Street Light Driving Circuit TechnologyYan Chongguang, a part-time researcher at the Shanghai Institute of Microelectronics of Peking University, wrote an article on "LED Street Light Driving Circ...
Updated Date
Job Title
Unit Name
Work Area
Education requirements
gender2011-03-14
Regional Manager
Guangzhou Kemi Technology Development Co., Ltd.
Guangdong-Guangzhou-Luogang DistrictUnlimited2011-03...
Its delay function uses a timer delay, but this function cannot find SysTick_Config(168000);while(ntime);while, and there is no stm32f4xx.it.c in its library file, but the compilation does not report ...
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
Traditional
virtual instruments
consist of a data acquisition
board
based on PCI bus and
corresponding software. However, with
the rapid development of
computer
network techno...[Details]
introduction
Belt drive is a common transmission device used in industrial production. Its commonly used speed detection device is a photoelectric encoder installed at the rotating end of th...[Details]
New Automobile
Hydraulic Clutch
The hydraulic control system uses almost 100% advanced engineering plastics, which overcomes the shortcomings of the main and branch cylinders of metal clutc...[Details]
An intelligent vehicle is a robot that can automatically drive in an environment according to a pre-set mode, or it can autonomously perform specific operations according to the on-site situation. ...[Details]
1 Introduction
With the rapid development of my country's economy, the country has introduced a series of policies such as preferential policies, subsidy policies, and old-for-new policies, wh...[Details]
In the microwave field, frequency synthesizers are the core components of measuring instruments. High-performance measuring instruments need to have large bandwidth, high resolution and low phase nois...[Details]
1. Preparation of electrodes
(1) Raw material pretreatment
Before the experiment, the positive electrode material LiFePO4, acetylene black and adhesive were vacuum dried at 120°C for 12 h...[Details]
Transformer burnout is usually caused by excessive temperature rise or insulation damage. The low temperature before burning does not mean that the local temperature is not high. Transformer overlo...[Details]
1 Introduction
CRC (Cyclic Redundancy Code) verification technology is widely used in the field of measurement, control and communication. In many cases, CRC calculation is implemented by dedi...[Details]
The voltage comparator is used to shape the demodulated signal and convert it into a standard rectangular wave. The high-speed, high-precision voltage comparator LM319 produced by Philips is selected....[Details]
1.
AC LED
is not a fundamental change in the device.
In other words, there actually does not exist an LED chip that works with an alternating electric field mechanism. The AC LED that is now a...[Details]
0 Introduction
Generally speaking, in-system programming (ISP) refers to programming the program memory integrated in the processor directly by means of some external tools (except for the conv...[Details]
Characteristics of
high-power LED
packaging
High-power LED packaging has been a research hotspot in recent years
due to its complex structure and process, and directly affects
the per...[Details]