The program for the 7*6 matrix keyboard has been compiled. Each key value is stored in an array such as key[7][6]. Now there is a 7*5 matrix keyboard LED indicator. How to make the corresponding indic...
I deleted more than 100 posts at night. I have two suggestions: 1. New users cannot post topics temporarily, they can only update posts first, for example, limit them for 3-5 days first, 2. Limit the ...
CRYSTAL CS495313 32bit audio DSP, CS8416 low time base error 192KHz digital receiver, CS42448A 96KHz/24bit ADC and DAC are the chipset combination of the highest performance AV receiver amplifier deco...
I would like to ask, can this function RegistryNotifyCallback be used in the driver? 6410_WAVEDEV_IIS.DLL' 65189 PID:8e23665a TID:8e236636 RaiseException: Thread=8e2363f4 Proc=807cd600 'device.exe' 65...
A program does not have an operating system, but it contains many functions, and the functions also contain local variables. Why is the Maximum Stack Usage message prompted as 0 bytes after compilatio...
I recently developed a board with 8 5*7 dot matrix digital tubes, 5 74HC595 to control the columns, APM4953 to control the 7 rows, and I plan to use 430 as the microcontroller. Which chip is more suit...
High efficiency and low standby power consumption are two major challenges in today's switching power supply design. Resonant topology or LLC topology is becoming increasingly popular because it ca...[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]
When choosing a laptop battery, you should consider several factors, such as power, appearance, and quality.
Regarding power, we often see that a manufacturer uses values such as the number ...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[Details]
With the development and widespread application of computer technology, especially in the field of industrial control, computer communication is particularly important. Although serial communication g...[Details]
A multi-point temperature control heating control system was designed using the SST89E564RC single-chip microcomputer and a new temperature measuring device. The heating system can be controlled in...[Details]
1. With the development of modern industry and the continuous improvement of automation, some medium and large control systems have been greatly facilitated, which not only makes control easier, bu...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
my country is a big country in agriculture, grain production and consumption. Grains are a necessary condition for our nation to survive and develop. The flour processing industry will exist forever w...[Details]
The potentiometer is an adjustable electronic component. The main functions of the potentiometer in the circuit are as follows:
1. Used as a voltage divider
A potentiometer is a continuou...[Details]
Nippon Electric Works and Volvo Technology Japan have developed a wireless power supply system for electric vehicles (EVs). Using this system, the two companies have successfully conducted an exper...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
MCU
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