The electric actuator, I gave a signal of 20%. Or more. But the feedback sometimes does not move. After I went to the site to manually debug, the feedback can move again. Is it a problem with the posi...
前提是我拿别人的交叉编译工具.
root@localhost u-boot-1.1.6]# export PATH=/ning/2.95.3/bin:$PATH[root@localhost u-boot-1.1.6]# make B2_configConfiguring for B2 board...[root@localhost u-boot-1.1.6]# makefor dir in to...
An experience, a lesson. Let's take a look. I have been debugging AVR microcontroller circuit boards these days and found a strange phenomenon: the matrix keyboards on more than half of the boards can...
I use pwm to read the sine wave table, but the output is just the duty cycle changing, not the sine wave. Is there something missing? Can an expert give me some advice? Thanks!...
[align=left][color=rgb(0, 0, 0)][backcolor=rgb(255, 255, 255)][font=微软雅黑][size=14px][size=4]As the title says, cortex-A8 platform, kernel version: linux 2.6.37[/size][/size][/font][/backcolor][/color]...
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[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]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[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. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[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]
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]
0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[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]
Embedded System
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