[i=s] This post was last edited by dontium on 2015-1-23 13:23 [/i] This has been bothering me for a long time. I use 2407A.My implementation method is to use EVA to control the motor's PWM and capture...
[size=4]1. MCU selection[/size] [size=4] [/size] [size=4]When selecting an MCU, you need to consider the functions that the MCU can perform, the price of the MCU, power consumption, power supply volta...
My question is this: I use the Ulong 2440 development board, remove the camera, and then use the camera port to connect the chip TW9910 on my other board. When I use i2c to drive the chip on the other...
What is the use of SysTickIntHandler, the system tick timer interrupt? I saw that "lwIPTimer(SYSTICKMS);" was called in its interrupt service routine. In lwIPTimer(SYSTICKMS);, " SYSTICKMS " was simpl...
Master Zhaojun, I bought a copy of your book the day before yesterday. I took a quick look at it and found some errors in the printing . For example, CPU is written as cup. The interrupt response time...
I just came to this forum not long ago, but I have a special feeling! ~ I think the forum members in our forum are all very good and well-educated! ~ But what I don’t understand is why there are so fe...
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]
China's new energy vehicles are in a transition period from research and development to real industrial development. In 2012, with the intensive launch of new energy vehicle policy planning, the de...[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]
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]
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]
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]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
Investment in
the
medical device
industry has been on the rise in recent years. In the past two years, venture capital for medical devices has almost doubled, reaching $4 billion in 2007. Fr...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]
Recently, news came from the certification department that the photovoltaic grid-connected inverter of Samil New Energy Co., Ltd. (hereinafter referred to as "Samil New Energy") has once again obta...[Details]
LED lighting: Basic circuit design can be completed in as little as one day
Semiconductor manufacturers are also getting involved in the LED lighting business. The power circuit of LED req...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
Analogue and Mixed Signal
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