I am making a lower-level filter driver for a USB bus. I use the method of constructing srb to read the physical sectors of a USB disk. The physical sectors of the USB disk are not read in the SCSI di...
I made two CAB packages, *.armv4i.CAB and *.armv4.CAB, and an EXE package. When I installed it on Windows Mobile 5.0, it can be used normally after restart. But when I installed it on Pocket PC 2003, ...
[i=s]This post was last edited by eric_bestmyself on 2018-2-7 19:45[/i] I have the following products to sell: 1. A brand new LPCXpresso54114 development kit, the specific price is negotiable. 2. 2 se...
I just came into contact with stm32 recently, and I don't know much about the eight IO port modes of 32. Can anyone teach me under what circumstances the eight IO port modes are used? Thank you very m...
I'm new to cc2430 and don't know much about it. I want to make a cc2430 node module for fun, but after checking online, I found that I need to use an emulator to download the program. I want to make a...
I just learned how to write header files. Functions are in .c and declarations are in .h. The macro definition used in the .c file should be defined in the .C or .h file? I defined it in the .c file b...
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. 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]
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]
Due to the significant increase in electronic devices in automotive and industrial applications, the automotive and industrial markets continue to play an important role in China's electronics in...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
The data collector of the automatic weather station is generally designed based on a single-chip microcomputer or a PC/104 bus controller. It has the characteristics of good compatibility with PC, low...[Details]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
LED light sources have many environmental advantages, but early products still have certain technical bottlenecks in heat dissipation and high brightness design that cannot be broken through....[Details]
The above is to use MB1404 as a stereo composite signal transmitter. You can use the internal high-frequency amplifier and oscillator or not! According to my experience, I still recommend beginners...[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]
Embedded System
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