The program I wrote was fine, but after I installed .net on my PC, a problem occurred when I ran it: cannot open file 'mfcs42d.lib' This problem occurred in the simulator environment, but it was compi...
In the production process, we always encounter the phenomenon that one, one string, or several strings of lamp beads cannot light up when testing after mounting on the board. Here is a summary of this...
[i=s] This post was last edited by qwqwqw2088 on 2014-5-12 11:02 [/i] [color=#000000] [size=2] [/size][size=3][font=宋体] [/font][font=Times New Roman] 1. Channel selection. The first step in choosing t...
void LED_Config(void){// The first step is to turn on the GPIO peripheral clock power. Only when it is turned on can the related GPIO registers be operated .Chip_GPIO_Init(LPC_GPIO); //Peripheral cloc...
Frequency converter: The output waveform is a simulated sine wave, which is mainly used for speed regulation of three-phase asynchronous motors, also called variable frequency speed regulator. Variabl...
[font=新宋体][size=4] I received the legendary [UFUN] today, a very mysterious board, the PCIE interface alone is different [/size][/font][font=新宋体][size=4]:pleased: Let me post the photo above!! I opene...
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]
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
introduction
In the discharge process of tokamak plasma physics, the study of rupture and sawtooth is of great significance. Rupture and sawtooth exist in most tokamaks. Rupture is a notew...[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]
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]
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]
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]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]
hint:
The number of speakers and their spacing limit the sound field of a portable stereo system.
Spatial audio attempts to artificially recreate the experience of listening to sounds i...[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]
Embedded System
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