I am developing on ARM7 and using UART0 for serial communication. I want to know the principle of data transmission, that is, how to send data and how to trigger interrupts. I just graduated and don't...
Environment: Linux 2.4.20 gcc compiler is used to compile a driver for powerpc. I found that there are two compile options -mmultiple -mstring in the source code makefile. If you don't remove them, th...
"The maturity period of 3G technology is too long. We will fully prepare for 4G." At the first media meeting after taking office, Wu Zhensheng, president of Nortel Greater China, revealed the major st...
Use TI 74HC4052 4-channel analog switch (voltage support 2~6V) to switch the serial port channels;
Both the MCU and 74HC4052 are powered by 3.3V power supply. One of the eight 74HC4052 chips is not wo...
Blood pressure is one of the important physiological parameters of the human body. Accurate measurement of it is conducive to early detection and identification of hypertension types, and to the pro...[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]
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]
1. Introduction
"Security prevention" is a special term for the public security system, which refers to measures such as anti-intrusion, anti-theft, anti-destruction, fire prevention, anti...[Details]
1 Introduction
DC regulated power supplies have been widely used in many industrial fields. In industrial production (such as electric welding, electroplating or DC motor speed regulation,...[Details]
As a new generation of video coding and decoding technology, H.264 has excellent compression performance compared with traditional MPEG-2, enabling it to achieve higher-quality video transmission u...[Details]
0 Introduction
The bandwidth of the Internet is getting larger and larger, and the transmission of information based on the Internet, especially real-time data of sound and images, has bec...[Details]
I recently looked up information online and found that some friends often hesitated for a long time between JMP and Minitab when choosing Six Sigma software. It happened that my company had just ch...[Details]
From the perspective of operators, video surveillance has developed into an important value-added service of China Telecom, laying a solid foundation for China Telecom's transformation into a compr...[Details]
1 Introduction
The automatic test system ATS (Automatic Test System) integrates all the stimulus and measurement equipment required for testing. The computer efficiently completes the acqu...[Details]
With the rapid development of the electronics industry, the demand for small DC motors is increasing. This type of DC motor often needs to be tested for its current and speed before leaving the fac...[Details]
1 Introduction
Complementary Metal Oxide Semiconductor (CMOS) image
sensors
have the characteristics of low power consumption, high integration and easy control. Their signal-to-no...[Details]
Design of high-order COSTAS phase-locked loop based on DSP
The COSTAS loop is a closed-loop adaptive system for extracting coherent carriers. This paper mainly introduces a high-order COST...[Details]
With the advent of the Internet era and the continuous improvement of information technology requirements, especially the increasing popularity of the Internet and the increasing number of Intranets i...[Details]
Abstract: The "Freescale" Cup National College Student Smart Car Competition requires the car model to drive "stable", "accurate" and "fast". By optimizing the installation of the servo in the smar...[Details]
Embedded System
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