I downloaded a PCB with an antenna from the Internet. After I deleted the connection between the main control chip and the antenna, I wanted to reconnect it, but found that I couldn’t connect it back....
I downloaded someone else's routine from the Internet and modified it. Now it can run completely./****************************************************************** Main function**********************...
An e-book with a very touching story. . . [:'(] ------ "If I can, I would rather grow old faster, so that I can be with my brother, together."If a girl is willing to exchange her youth for the opportu...
I spent a lot of time researching the ProtocolReceivePacket function. Some materials mentioned that this function can receive multiple packets, but I think it can only receive complete packets. The re...
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]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
Analysis of the three core aspects of digital TV transmission standards
According to the differences in regionality, transmission method and modulation method, the transmission method needs to...[Details]
introduction
At present, the research on micron and nanotechnology is very active, which has led to the rapid development of microtechnology and micro-mechanical electronic system (MEMS) t...[Details]
1. Introduction
Modern modular machine tools are equipped with a large number of electronic devices to meet the requirements of processing accuracy, processing speed, etc. If the conventional ...[Details]
Automotive electronics are in a noisy environment
,
so automotive electronics must have excellent electromagnetic compatibility (EMC) performance. The most important part of automotive elec...[Details]
1. Sensor
According to the national standard GB7665-87, a sensor is defined as a device that can sense the specified measured quantity and convert it into a usable output signal according to a...[Details]
0 Introduction
In microwave, radar, radio and television, and communication systems, the problem of coupling RF power is often encountered. A directional coupler is a directional power divide...[Details]
When programming in C and assembly, there are interface issues between variables and functions in C and assembly.
Variables defined in a C program are put into the .bss area after being compile...[Details]
Motor vehicle garage management control system
1. Usage Requirements
1. There are 70 parking spaces in the garage. Each parking space has a door at the entrance. There should be a control...[Details]
At present, in the electrified section, the train power supply system is a passenger car power supply device installed in the locomotive (trailer) that steps down and rectifies the 25 kV single-phase ...[Details]
Introduction
With the development of economic level, people's demand for cars is increasing. While cars bring great convenience to our travel, they also pose challenges to the health of d...[Details]
PCB Design
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