Dear experts, I soldered a minimum FPGA system board by myself. The FPGA can download the program, but what is the situation except that all the pins output high level? Confirm that there is no cold s...
[i=s]This post was last edited by damiaa on 2014-11-23 17:05[/i] I received the X-NUCLEO-IDB04A1 board today. So I downloaded some information from the ST website. X-NUCLEO-IDB04A1 board informationBl...
I added a C file to the sample project of vscode, and then used the previous IDE method to reference the functions in it. When compiling, it always prompted undefined reference to `corresponding funct...
Abstract: Aiming at the problem of real-time estimation of Doppler center of airborne SAR, this paper proposes an implementation scheme based on correlation function algorithm, and analyzes the factor...
[i=s]This post was last edited by dcexpert on 2019-8-18 17:08[/i]A few days ago, I introduced the open source USB Puyuan device control software RglComm to you . I happened to have a Puyuan oscillosco...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[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]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[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]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[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]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
LED light sources have many environmental advantages, but early products still have certain technical bottlenecks in heat dissipation and high brightness design that cannot be broken through....[Details]
Introduction
my country's rapid economic growth is mainly due to the development of manufacturing and the acceleration of urbanization. However, urbanization cannot be achieved at the expense ...[Details]
1 Introduction
Lijia'an Yellow River Diversion Culvert is a large gravity diversion gate in the lower reaches of the Yellow River. The Yellow River Diversion Culvert is located in Lijia'an Vi...[Details]
The circuit has overcharge protection, over-discharge protection, over-current protection and short-circuit protection functions. Its working principle is analyzed as follows:
1 Normal state
...[Details]
1. Basic principles of organic/polymer solar cells
The basic principle of organic/polymer solar cells is to use the photovoltaic effect generated by light incident on the heterojunction of sem...[Details]
As a type of iron battery, lithium iron phosphate battery (hereinafter referred to as lithium iron battery) has always been widely concerned by industry friends (some people say that lithium iron b...[Details]
Inverter supplier Santerno has been awarded a contract to supply 155MW of sliding inverters to a solar farm in California’s Imperial Valley. The company did not disclose further details about the p...[Details]