1. Introduction
In preparation for the subsequent demo, we transplanted RTThread. Why not transplant FreeRTOS? Because domestic chips should use domestic systems! So let's get started!
2. Transplantat...
I use a QQ2440V3 board with a 800*480 7-inch screen. I successfully changed the display to portrait mode by adjusting the display driver parameters. I observed that the pen touch calibration procedure...
I want to write a small program for disk operation under evc, which needs to use functions such as OpenStore and OpenPartition. The definitions of these functions can be seen in the header file of the...
I am a beginner in protel and want to convert a PCB diagram into a schematic diagram. Is there any software to do this? There are a lot of copper wires on the PCB diagram, which looks very complicated...
[align=left][b]Plug-in assembly line definition: [/b] [/align] [align=left]Plug-in assembly line uses steel frame and special aluminum alloy track as main parts. The assembly line can be divided into ...
I use Guo Tianxiang's TX-1C development board and use STC-ISP to download via USB to serial port. It was working fine before, but after I downloaded a program for a matrix keyboard, it suddenly stoppe...
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
1 Introduction
A wide variety of communication cables and control cables are widely used in various instruments and control equipment. Whether the cable is well-conducted and
whether
th...[Details]
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
In this article, the high-performance DSP developed by TI can be used as an effective confidentiality method if it is applied to PC encryption cards.
As an effective network security solution,...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[Details]
Contact resistance
is the resistance to current flow through a closed pair of contacts. This type of measurement is performed on devices such as connectors,
relays
, and switches. The...[Details]
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[Details]
1 Introduction to HART Protocol
HART (Highway Addressable Remote Transducer), an open communication protocol for addressable remote sensor high-speed channels, was launched by Rosemen in the U...[Details]
MediaTek (2454) announced the acquisition of F-MStar (3697) and attracted the attention of IC design industry. This morning, Gartner Semiconductor Industry Research Director Hong Cenwei analyzed ...[Details]
With the widespread application of new services and technologies in the communications industry, the scale and capacity of operators' network construction are getting larger and larger, and the ris...[Details]
Introduction
X1226 has the functions of clock and calendar. The clock relies on hour, minute and second registers to track, and the calendar relies on date, week, month and year registers to tr...[Details]
Our flight had just begun to descend when a gentleman sitting next to me turned to talk to me about engineering—he had seen me reading an engineering journal. The gentleman next to me said that he ...[Details]
In order to develop lighting LED technology, developed countries attach great importance to the research of LED testing methods and standards. For example, the National Institute of Standards and T...[Details]
Leakage current is generated by parasitic resistance paths between the measurement circuit and a nearby voltage source. This current can significantly reduce the accuracy of low current measurement...[Details]
1. The composition and structure of mobile phone lithium battery
Mobile phone lithium batteries are mainly composed of plastic shell upper and lower covers, lithium battery cells, protection c...[Details]