1. Basic operating system Modern real-time operating systems mainly add the concepts of multitasking and inter-task communication. Multitasking environment means allowing a group of independent tasks ...
The program ran for several hours, but suddenly died, and I couldn't even enter the interrupt.I sent the same command through the network, saved the command in the receiving interrupt, and then querie...
Why is the anti-interference ability of field effect tube stronger than that of transistor? Is it because of the large input resistance or some other structural characteristics?...
[i=s]This post was last edited by lb8820265 on 2020-9-13 20:07[/i]Raspberry Pi 4 supports camera, the interface is called SCI (Camera Serial Interface). Raspberry Pi has camera accessories, using Sony...
I defined ZTOOL_P1 and ZAPP_P2 in the compilation options. By default, serial port 0 uses DMA mode and serial port 1 uses interrupt mode. But I found that two functions were not implemented at all. I ...
I participated in the forum's grabbing event a while ago, [url=https://bbs.eeworld.com.cn/thread-440397-1-1.html]ZRtech Embedded and EEWORLD are giving out benefits! [/url] I was lucky enough to grab ...
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]
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[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]
Remote keyless entry (RKE) systems have become popular with users, with more than 80% of new cars in North America and more than 70% in Europe equipped with RKE systems. In addition to the obvious ...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[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]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[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]
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[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]
Real-time operating system RTOS
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