[img]http://fmn006.xnimg.cn/fmn006/pic001/20080906/19/35/large_zXYS_4880k132089.jpg[/img] [img]http://fmn009.xnimg.cn/fmn009/pic001/20080906/19/45/large_w4lF_5123a132089.jpg[/img] This is the first PC...
I am a database developer and have been assigned a task on modbus driver. I am looking up the information quickly. I have come across a problem that I cannot understand. I hope you can explain it to m...
I got the GD32E230C board many days ago. I unpacked it and tested it before the New Year. I tried to open the DEMO program, but the compilation failed. I put it aside and didn't have time to deal with...
There is U-BOOT burned on the board. Turning on the power prints the following information: Texas Instruments X-Loader 1.44 (Jun 24 2010 - 15:48:14)Starting OS Bootloader...U-Boot 2009.11 ( Sep 29 201...
See the attached picture. From the datasheet of STM32F030F4, I know that this MCU has a temperature sensor. Due to poor e-text, I am confused and don't know how to use it. So I post this for help. I h...
1. Introduction
Since the 1980s, with the continuous development of automotive electronic technology, there are more and more electronic control units in automobiles, such as electronic fuel i...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
Introduction
Nowadays, people pay more and more attention to the security alarm system, and people have higher and higher requirements for the functions and performance of the alarm. This paper prop...[Details]
introduction
At present, measuring instruments are developing towards networking, and each individual embedded instrument will become a node on the Internet. This system realizes the network...[Details]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
0 Introduction
There are many types of sensors, and the working principles, measurement targets and measurement environments of different types of sensors vary greatly. The corresponding detection s...[Details]
The demand for improved healthcare environments is endless, so medical imaging equipment with higher resolution is needed to better observe the human body. High resolution brings problems with sign...[Details]
Battery clamps, commonly known as battery connectors, come in two sizes depending on the thickness of the battery terminals. One is the battery clamp used on thick terminals, with a positive termin...[Details]
Electrostatic coupling and interference occur when a charged object is close to the input of the circuit being measured. At low impedance, the effects of interference are not noticeable because th...[Details]
The power supply is the core component of a computer. Although it is not of high value, all computer components rely on the switching power adapter to provide energy, so the stability of a power su...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]