Under Windows XP, I have a GPRS modem connected via a serial port. At the same time, there is a phone modem on the PC. Every time I set "connect using a dial-up modem", the phone modem is always autom...
The ADC gets the voltage value of a certain point, the range is only 0~1.65v, isn't the internal reference voltage of M4 3.3v? I used ADCReferenceSet (ADC0_BASE,ADC_REF_INT); but the result is useless...
I just returned to school a few days ago, and the courier kept urging me to deliver the board. If I came back a few days later, this cute little board would have to say goodbye to me. I couldn't wait ...
As shown below, QFN-10 package, center thermal pad. The heterogeneous pad cannot be drawn. In PCB, use wire to draw the shape, and then convert it to region. When copied to the package editing interfa...
I am using the ordinary I/O of the microcontroller to simulate IIC, writing one byte to the E2PROM, and then reading it out for verification. It works, but there is an error. I don't know if it is a r...
One is that the Olympic Games will be held in Beijing, which will effectively enhance TOM's brand and performance; another is that 3G will be liberalized, and more wireless value-added applications wi...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
In this article, the high-performance DSP developed by TI can be used as an effective confidentiality method if it is applied to PC encryption cards.
As an effective network security solution,...[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[Details]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[Details]
Contact resistance
is the resistance to current flow through a closed pair of contacts. This type of measurement is performed on devices such as connectors,
relays
, and switches. The...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
1 Introduction to HART Protocol
HART (Highway Addressable Remote Transducer), an open communication protocol for addressable remote sensor high-speed channels, was launched by Rosemen in the U...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[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]
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]
Embedded System
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