[color=#000][font=Arial, Helvetica, sans-serif, 宋体][size=12px]RS232 and RS485 are two difficult things to understand, although they are very different. [/size][/font][/color] [b]1. What is the RS-232-...
There is a binary stationary Markov chain. Given P(0/0)=0.8, P(1/1)=0.7, find its symbol entropy. Perform run-length coding. If the cutoff value of the "0" run length is 16 and the cutoff value of the...
Abstract: Digital temperature sensors can directly output temperature in the form of digital pulse signals, and have many advantages such as high measurement accuracy, strong anti-interference ability...
I was recently debugging a 2440 board that I made. The JTAG connection was established and the core was identified as ARM920T. However, the instructions were not executed. Since it was hardware debugg...
PC-type hard disk video recorder crashes in full contact 9. Improper selection of parts causes crashes. A few people use low-quality motherboards and memory when assembling hard disk video recorders f...
Make the following settings for spi to correctly send the waveforms of uclk and simo #include msp430x14x.h
//unsigned char Data[6];
unsigned char flag = 0;
void Init_spi(void);
void main(void)
{ unsig...
In some warehousing management, manufacturing, meteorological observation, scientific research and daily life, the requirements for temperature and humidity are common. For example, the "Interim Pr...[Details]
JTAG Technology Introduction
One disadvantage of shrinking technology is that the complexity of testing small devices increases dramatically. When the board area is large, the board is tested...[Details]
As the whole equipment is becoming increasingly miniaturized and power-saving, low-dropout linear regulators (LDOs) with low power consumption are becoming the mainstream in the market for linear regu...[Details]
In electronic measurement technology, frequency measurement is one of the most basic measurements. The commonly used frequency measurement method and period measurement method have great limitation...[Details]
introduction
Taking care of babies is very tiring because they wake up and sleep frequently, and activities such as feeding and changing clothes will take up a lot of adults' time and energy. ...[Details]
summary
Theoretically explains how to set up a PFC boost regulator using a current sensing transformer with the UCC3817 control IC.
1. Schematic
The schematic diagram is show...[Details]
A well-designed electronic load is not designed just for use in the lab; it should be carefully designed and built to test actual power systems. This is true for military portable systems, such as ...[Details]
1. Introduction
The UCC28051 reference design is a 100W offline AC/DC voltage converter with power factor correction (PFC). This power module design is intended to illustrate how to proper...[Details]
In a Class D audio power amplifier, the preamplifier is a relatively important module. It is located at the front of the entire topology and completes the processing of the input signal source,...[Details]
1. Introduction
The intelligent detector discussed in this paper is an integrated semiconductor photodetector. Compared with traditional semiconductor photosensitive devices, its most ...[Details]
With the continuous emergence of new technologies and the increasing complexity of DSP real-time systems, there are more and more different types of external devices. Writing drivers for these exte...[Details]
Power Integrations (PI) has introduced three charger/adapter reference designs using its new LinkSwitch-II series of AC-DC switching power conversion ICs. The new LinkSwitch-II devices use high-pre...[Details]
1. What is fading?
In terms of scope, fading can be roughly divided into three types: large area fading, small area fading and indoor fading. As shown in Figure 1, large area fading refers t...[Details]
Abstract: This paper introduces the origin and new features of MP4, and introduces the core audio compression technology MPEG-2 AAC (Advanced Audio Coding) based on MP4. Finally, it briefly summari...[Details]
Global IP Solutions (GIPS), a leading provider of high-quality IP multimedia processing solutions, announced that GIPS has enabled Voice over Internet Protocol (VoIP) capabilities for Apple's iPhon...[Details]
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