What is wrong with keil4? The target is always not established. How to correct it?
Note: A new project has been created, a new file has been created (the file is named .c), and the source group has be...
I am working on a project, the input signal is ±4V, the display range is 0---99999, and the minimum change of the last bit of the displayed data is one word when the input signal changes. That is, 000...
The appearance of Audi does inherit the family style of Audi in the past, with the front face design characteristic of Audi S series, the streamlined body like a coupe, the wide wheels and the strong ...
Pervasive and deep network connectivity forces engineers to confront and solve a variety of technical security and reliability issues. As more and more embedded devices work in an open network environ...
I first generated the Makefile using ./configure -target=arm-linux and then executed make. The following prompt appeared: // I checked and found that char *malloc() was defined in regex.c; in stdlib.h...
TD-SCDMA (Time Division Synchronous Code Division Multiple Access) is one of the three major standards for the third generation of mobile communications. It is a communication standard with indepen...[Details]
The circuit shown in the figure is a three-digit tachometer used to measure low frequency signals with a repetitive time interval of 0.235 to 15 seconds. The tachometer has a speed range of 4 to 255 r...[Details]
Digital signal processors have efficient numerical computing capabilities and can provide a good development environment, while programmable logic devices have highly flexible configurability. This...[Details]
Sensors have made inroads into automotive, medical, industrial and aerospace applications. But you may not see anything changing yet. Growing demands for safety, convenience, entertainment and efficie...[Details]
Overview
Bioelectric signals are very weak, and there is strong interference when detecting them. Therefore, there are many technical difficulties in designing high-quality bioelectric ampli...[Details]
With the development of automatic control technology, the application of precision air pressure generation and control technology is becoming more and more extensive. However, the traditional valve...[Details]
In some warehousing management, manufacturing, meteorological observation, scientific research and daily life, the requirements for temperature and humidity are common. For example, the "Interim Pr...[Details]
TD-SCDMA terminal conformance test includes three types of tests: RF index test (reference standard: 3GPPTS34.122), protocol signaling test (reference standard: 3GPPTS34.123) and other tests (refer...[Details]
Third generation (3G) mobile phones offer a variety of features with more functionality. As consumers enjoy the latest and better features of these communication devices, they continue to demand lo...[Details]
introduction
The most common flight state of a fixed-wing aircraft is horizontal flight. If it is allowed to fly at a large angle, the action cannot be maintained all the time. If it is al...[Details]
0Introduction
As a service robot in the field of medical care, the application of smart wheelchairs makes extensive use of mobile robot technology. The key technologies involved in the researc...[Details]
Power semiconductors and reactive components (capacitors and inductors) are ubiquitous in today's electrical equipment. In normal operation, they can cause two undesirable side effects on the AC line ...[Details]
Industrial control
often requires multi-channel fault detection and multi-channel command control (this multi-task setting is very common). A single CPU chip is difficult to directly complete ...[Details]
Abstract This paper
introduces a wireless radio frequency transmission chip nRF9E5 based on 8051 core. The remote control system of flapping-wing micro-aircraft is made by using this chip. Th...[Details]
Test equipment manufacturers are constantly challenged to develop new test solutions that meet the latest product testing needs of their customers, and they often design specialized hardware t...[Details]
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