[i=s]This post was last edited by paulhyde on 2014-9-15 09:35[/i]The component list for the 2011 National College Student Electronic Design Competition is finally out. Please express your opinions bas...
The following code does not work. I would like to ask the experts for help. BOOL CGGDlg::PreTranslateMessage(MSG* pMsg) { long pos[1]; unsigned short LmtSts; switch (pMsg->message) { case WM_KEYDOWN: ...
I created 5 tasks in a uc/OS project, and they all ran normally at first. After testing, one of the tasks was inexplicably hung after 5 or 6 hours, while the other tasks ran normally. I don't know wha...
In UNIX, an inode (index node) is a structure that contains unique meta-information about a file. A file may occupy multiple physical blocks, but there is only one inode for each file, which contains ...
The platform is Samsung 2440, and the DAC is CS4344. The basic parameters are as follows: sampling rate 44.1KHZ, mono, master clock 384fs. Serial bit clock of 32fs. The sclk, cdclk, and lrclk clocks m...
Hello everyone: When I was programming a CAN card driver, I wanted to clear the interrupt bit, so I wrote this statement: recv_flag = peekb(address, 3); It worked fine and the interrupt bit was succes...
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]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[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]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[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]
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
All electronic design engineers and scientists have performed electrical signal analysis, or signal analysis for short. Through this basic measurement, they can gain insight into signal details and...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[Details]
1. Introduction
At present, most lighting equipment still uses traditional energy for lighting. Making full use of solar energy as the energy supply for lighting equipment is of great si...[Details]
Overview:
This paper introduces a method of connecting a CAN-bus network with Ethernet to form a medium-sized remote monitoring/data transmission network.
CAN (Controller Area Network) is ...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
Many battery-powered systems require a visual indicator to show when the battery needs to be replaced. LEDs are commonly used for this purpose, but they consume at least 10mA of current. This con...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
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