1. Use assembly language by using the preprocessing directives #asm and #endasm. The assembly language written by the user can be followed by #asm and ended before #endasm. As shown below: #asm /*Asse...
I saw KDY master took up the banner on the forum, so I had nothing to say. I signed up, passed the review, and the board was finally sent to me! [[i] This post was last edited by ydcman on 2013-6-20 2...
I need to design a signal generating circuit with a frequency of 20M, a low level of 4V, and a high level that can be adjusted between 20V and 50V. I hope all the experts can give me some advice....
[align=left][color=#000][font=Arial, Verdana, sans-serif][size=13.3333px][font=宋体][size=4] Technology News Beijing time on the morning of August 4th, Apple's stock price rose slightly on Friday, but i...
[size=4] Most MCUs have very limited on-chip SRAM resources, only tens of KB, and 256KB is already very luxurious. SRAM is much faster than NAND or NOR flash memory, and there is no limit on the read ...
[size=4][color=#252525]This example illustrates how to convert a C program from floating point to fixed point. This is a C language program that performs a low-pass filter on a speech signal (0.3~3.4k...
All electronic design engineers and scientists have performed electrical signal analysis, or signal analysis for short. Through this basic measurement, they can gain insight into signal details and...[Details]
Abstract: In order to generate a stable excitation signal, the design of a digital frequency synthesizer is implemented on FPGA using Verilog hardware language. The design includes accumulator, wav...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[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]
1. Introduction
At present, most lighting equipment still uses traditional energy for lighting. Making full use of solar energy as the energy supply for lighting equipment is of great si...[Details]
Overview:
This paper introduces a method of connecting a CAN-bus network with Ethernet to form a medium-sized remote monitoring/data transmission network.
CAN (Controller Area Network) is ...[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]
Many battery-powered systems require a visual indicator to show when the battery needs to be replaced. LEDs are commonly used for this purpose, but they consume at least 10mA of current. This con...[Details]
This controller uses PIC16C54 single-chip microcomputer as the controller, and it is very easy to use: just connect a telephone line to the loudspeaker through the controller, and you can rem...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
It is well known to automotive suppliers that automakers are demanding more from their supply base. For connector suppliers, this means stricter requirements for product performance, stability and ...[Details]
The era of mobile access to the Internet has arrived, and it will rapidly change the business and infrastructure needs of mobile operators under a whole new trend of requirements. We need 4G LTE to...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
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