When porting 5.0BSP to 6.0, the serial port driver cannot be run. DNW prompts: WARNING: CReg2440Uart::CReg2440Uart failed to obtain processor frequency - using default value (66750000). DEBUG: Serial2...
[i=s]This post was last edited by btty038 on 2020-2-2 21:51[/i]Draw a circle here. Very good.This content is originally created by btty038 , a netizen of EEWORLD forum. If you want to reprint or use i...
I recently wrote a program that uses a sensor to measure, and then converts the value to an A/D converter on a microcontroller, and then displays it on an LCD. But if the value measured is not continu...
I bought it in the first half of this year. I have been busy and have no time to tinker with it. It is brand new. If you want it, please contact me. It costs 100 yuan, and the shipping is not included...
Data acquisition systems withwide dynamic range often require some method to adjust the input signal level of the analog-to-digital converter (ADC). For the best performance of the ADC, the maximum in...
I would like to ask you experts, when drawing a circuit schematic, what does DNP on the chip reference circuit mean? How to deal with it? I hope to get your correct answer, thank you!...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[Details]
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[Details]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[Details]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[Details]
1. With the development of modern industry and the continuous improvement of automation, some medium and large control systems have been greatly facilitated, which not only makes control easier, bu...[Details]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]
The potentiometer is an adjustable electronic component. The main functions of the potentiometer in the circuit are as follows:
1. Used as a voltage divider
A potentiometer is a continuou...[Details]
Overview
In spectral measurement, photomultiplier tubes (PMT) and charge-coupled devices (CCD) are often used as photoelectric converters. PMT is used in slow-changing, high-precision spectral...[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]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]