It is like this. I now define a typedef union _unfloat { unsigned char bydata[4]; float fdata; }unfloat; outside main() and then void main() { unfloat qq; while(1); } Why does the compiler say that I ...
A little sister of mine will have surgery in a few days. She is less than 5 years old but has to suffer this pain. As her brother who is thousands of miles away, I can't do anything. I am here to pray...
/* Set the timer to 1 second to control the flow speed of the water lamp*/ #include
typedef unsigned char u8; typedef unsigned int u16; void tim0init()//Timer 0 initialization{ TMOD=0X01; //t0 mode 1 ...
1. After the Spring Festival, express delivery was temporarily stopped, so the new devices did not arrive. Mainly compared the interface selection of I2C and UART.
2. The SGP40 chip provides an I2C in...
First of all, please prepare 7G of free space on your hard disk, otherwise the installation may not be successful.
1. Go to the Silicon Labs website to download the SS5 installation package and instal...
[size=5]Set some goals for myself in 2018 1. In the 7th year of work, I will make some technical breakthroughs and find the understanding that suits me. 2. Continue my marathon journey and exceed 2500...
1 Introduction
As an emerging microfabrication technology, micro-electromechanical system (MEMS) technology has begun to be applied in various fields. It can integrate functions such as inform...[Details]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
Smart lighting control systems provide high controllability for various buildings and further enhance the level of green energy. They are the core products of energy conservation and digital techn...[Details]
With the continuous consumption of earth's energy and the scarcity of resources, the harm of greenhouse effect to human beings, and the serious pollution of the atmosphere to the earth, the intern...[Details]
Flooded Batteries
This battery developed in Germany can be used to power flashlights, strobe lights and toys as long as it is filled with water. This battery can be stored for 50 years and can...[Details]
The traditional display screen using 51 single-chip microcomputer to control LED dot matrix has relatively simple functions. If it is to achieve diversified functions, it often takes a lot of time ...[Details]
Introduction
Liquid crystal, as a display device, is widely used in low-power products such as instruments, meters, and electronic equipment with its unique advantages. In the past, the displ...[Details]
Capacitance Measurement
Used to verify that capacitors meet the manufacturer's specifications. For quality control, a group of capacitors may be placed in an environmental chamber and the cap...[Details]
FPGAs are used in 81% of electronic systems, including many commercial and defense products, and most FPGAs use BGA packaging. The BGA packaging is characterized by small solder balls and small sol...[Details]
In today's body control module (BCM) designs, savvy engineers are moving away from electromechanical relays whenever possible. Their next step is to eliminate fuses. But is eliminating fuses a nece...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]
Introduction
Automakers are working to reduce vehicle weight to reduce CO2 emissions and improve fuel efficiency. Designers are therefore seeking new technologies and design techniques that can...[Details]
Embedded System
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