I'm a newbie and have only done a few projects with the STM32F103 series. Now I want to learn Linux or Android, Android first. I've seen a lot of Cortex-A8 and A9 development boards on Taobao, such as...
The latest ARM development board, CORTEX-M4 core, also comes with an official learning CD.
Freescale TWRK60N512 learning kit.
The dealer sells it for 1500, and it needs to be shipped from the United S...
First of all, my bootloader uses Ulong's BOIS. I have now changed the 128M sdram and it boots normally. Now I load wince5.0 but it cannot boot. The light is OK in the light test BringUpWinCE ----- add...
[i=s] This post was last edited by mcu200689 on 2018-6-19 21:31 [/i] [color=#5e7384][b] Previously, because I was not sure whether the names of the variables to be monitored were correct, I wrote an a...
[size=4]Working principle: Let's use the following figure to illustrate the principle of voltage regulation of linear regulated power supply. [/size] [size=4] [/size] [size=4]As shown in the figure be...
Excuse me, does connect_timeout=60 in /etc/ppp/pppeo.conf mean that if the connection fails within 60 seconds, it will not be connected. But why is my device still sending messages, and many zombie pr...
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]
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]
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]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
With the rapid development of cities and the improvement of citizens' living standards, the number of various vehicles in cities is growing, and the demand for parking spaces in major commercial an...[Details]
1 Introduction to LED
With the development of science and technology, people have higher and higher requirements on automobile light sources. LED (Light Emitting Diode) has gradually attracted...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
introduction
At present, the research on micron and nanotechnology is very active, which has led to the rapid development of microtechnology and micro-mechanical electronic system (MEMS) t...[Details]
Electric bicycles have long been a means of transportation for lower-income groups due to their affordability. The largest concentrated expense in the use of electric vehicles is the cost of replac...[Details]
HL201A is a special thick film driver integrated circuit with a capacity of less than 75AGTR developed by Xi'an Power Electronics Technology Research Institute. The article explains the pin arrange...[Details]
1. Introduction
With the rapid development of computer technology, communication technology, and integrated circuit technology, the large-scale application of field control instruments and equ...[Details]
Traditionally, when using PLC to control stepper motors, a dedicated stepper motor control intelligent module is usually added to the PLC, and then connected to the drive power supply to realize th...[Details]
Linux and Android
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