Is there a problem with selecting DEC for the mpc8280 system clock? The DEC interrupt priority is very low, not as high as the external interrupt. Can it be set?...
[i=s]This post was last edited by johnrey on 2015-7-15 21:56[/i] [color=#000][font=Tahoma,]Preconditions: 1. Systick is part of arm0+ core 2. In sleep mode, arm0+ core is down 3. __WFI will enter at l...
Showing my ugly electronic load:) 1. Front view2. Back view: The heat sink has no insulation, so I cut it with an ABS machine, and the four corners are just right: lol3. Top view. This old case is ver...
The code in the picture below is to make P1.2 and P1.6 output PWM waveforms, but I don't understand the words in the red circle in the picture. Does it mean that P1.2 and P1.6 both output PWM with a d...
This machine is used for static elimination on plastic printing machines. It is made in Taiwan. The control board and thyristor are broken. The IC, thyristor and diode have all been polished. I have n...
Why does the desired pulse wave not appear when differentiating a square wave? Is it possible to use a differential circuit to measure the rising edge time of a square wave?...
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]
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]
AD8205 is
a single-supply high-performance differential
amplifier
launched by
Analog
Devices of the United States
. The typical single-supply voltage is 5V, and its common-mode volta...[Details]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
Traditional
virtual instruments
consist of a data acquisition
board
based on PCI bus and
corresponding software. However, with
the rapid development of
computer
network techno...[Details]
With the rapid development of the national economy, lifting and hoisting operations are used more and more frequently and widely in various fields of economic construction. China has continuously expl...[Details]
Against the backdrop of global warming, energy conservation and emission reduction have become a global hotspot and focus, which has also sounded the clarion call for the take-off of the LED lighti...[Details]
1 Development of LED Film and Television Lighting
1.1 The significance of developing film and television lighting
Lighting power consumption accounts for a large proportion of the total p...[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]
Mobile phones, MP3s, tablet computers, laptops, digital cameras, handheld game consoles, navigation devices, etc., all these mobile devices are powered by mobile batteries, and the battery life is ...[Details]
Don’t just look at the power when choosing a power supply
We know that a power supply with a low rated power can hardly meet the power supply needs of the system, which may cause frequent free...[Details]
In recent years, with the increasing maturity of LED technology, LED light sources have been increasingly widely used due to their advantages of using low-voltage power supply, low energy consumpti...[Details]