Define float a=1.1, b=2.2, c; that is, define three single-precision floating points c=a*b; This instruction uses 5 system clocks c=a*b; c=a*b; Calculating it twice together uses 9 system clocks c=a*b...
Hello everyone, I changed a ucos-iii task on stm32f103rb today, I don't know why? When I changed the startup file to startup_stm32f10x_hd.s, the system can run normally on the development board, but i...
[b][size=18px]Technical Description[/size][/b] [color=#000][font=Arial][/font][/color] [color=#000][font=Arial][size=18px]Therefore, when we design the circuit, we only need to connect these two pins ...
We all know that MSP430 has an ultra-low power working state. According to the user manual, Active Mode: 220 μA at 1 MHz, 2.2 V; Standby Mode: 0.5 μA; Off Mode (RAM Retention): 0.1 μA
But this only gi...
8086 program, why is there no response on the board when I execute the code? The port and other things are correct. Can someone help me look at it? The code is as follows data segment ioport equ 0d400...
Hello everyone, I am a PCB beginner and am learning Allegro software. I would like to ask how to make the corresponding PCB package according to the appearance specifications in the chip manual, inclu...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[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]
0 Introduction
With the development of my country's economy, the number of motor vehicles continues to increase. The growth of existing roads and other hardware facilities can no longer meet t...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[Details]
I. Introduction
In the field of power conversion, isolated converters (forward, flyback, and double-ended) with low output DC voltage all use MOSFET as the rectifier device. Since these devi...[Details]
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]
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect t...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[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]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[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]
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]
Microcontroller MCU
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