The circuit board is mainly composed of differential op amp + 1 dual-channel AD, 6 DA (AD9707) + differential op amp and sp6-FPGA. The DA module test method is: generate sine waves of different freque...
The nested interrupt system NVIC and RCC of STM32 are organized in detail using the latest 3.5 library of stm32f103. I. Overview: 1. The concept of priority in STM32 (Cortex-M3) There are two concepts...
In a sub-function, an array Time is defined, and then a value is assigned to Time as shown in the figure. However, when the program is compiled, a warning as shown in the figure appears. I don't under...
The function that uses pointer as parameter is as follows: void write_data(uint16 addr,uint8 *s,uint8 n) { uint8 temp,addrH,addrL; temp=addr; writebyte(0xA0); addrH=temp/256; writebyte(addrH); addrL=t...
For most students, the college entrance examination is an important turning point in their lives, and choosing the right major is the key to determining their future career.
If the candidate is intere...
Dr. Dot Micro Quadcopter: How to interpret the gyroscope MPU6050 data PU6050 data is a 16-bit number. It belongs to the int16 type, that is, the data range is -32768 to 32767. The positive number rang...
High efficiency and low standby power consumption are two major challenges in today's switching power supply design. Resonant topology or LLC topology is becoming increasingly popular because it ca...[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]
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]
This paper establishes a fuel cell engine test platform based on the NI integrated hardware and software environment. This platform can realize the test and control of fuel cell engines and their a...[Details]
With the development and widespread application of computer technology, especially in the field of industrial control, computer communication is particularly important. Although serial communication g...[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 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]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
LED guardrail lights use fluorescent tubes or LEDs as light sources and continuous guardrails as carriers to form an approximately linear guardrail light strip. This article mainly introduces...[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]
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]
The power supply is the core component of a computer. Although it is not of high value, all computer components rely on the switching power adapter to provide energy, so the stability of a power su...[Details]
As we all know, the manufacturing of modern automobiles is divided into four major processes: stamping, welding, painting and assembly, and the powertrain constitutes five inseparable production pr...[Details]
As a type of iron battery, lithium iron phosphate battery (hereinafter referred to as lithium iron battery) has always been widely concerned by industry friends (some people say that lithium iron b...[Details]