Looking for RF wake-up solution, 125KHz low frequency or high frequency is fine, as long as it can wake up. Wake-up distance <1.2m; antenna area is about 1.2mX1.2m; if you have a solution, please cont...
MCLK represents the CPU operation and system clock. 430 executes a simple instruction in one clock cycle. Why does it take the same time to execute the same code when MCLK=REFOCLK (32768HZ) and MCLK=X...
[i=s] This post was last edited by electrics on 2016-9-26 00:33 [/i] while(1) { if(((TIM2->SR&0X0001)==1)&&((TIM2->CCER & 0X0002)==0X0002)) //Falling edge trigger and judgment is reaching the maximum ...
Single-choice questions 1. The transmission mode in which the microprocessor only starts the peripherals without intervening in the transmission process is _________ mode. A. Interrupt B. DMA C. Query...
Abstract: This paper introduces the main features, working principle and interface technology of DS2480B UART/RS232 to single bus protocol converter, and specifically explains the application of DS248...
Fresh graduates with or without work experience are welcome. Fresh graduates from 211 engineering schools are required. Send your resume to jandywang@wo.com.cn . The company's development and personal...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[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]
When choosing a laptop battery, you should consider several factors, such as power, appearance, and quality.
Regarding power, we often see that a manufacturer uses values such as the number ...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
On the afternoon of July 10, Beijing time, Taiwan's largest chip designer MediaTek expects its smartphone chip shipments to grow by double digits in the third quarter of this year, and the company is ...[Details]
Capacitance Measurement
Used to verify that capacitors meet the manufacturer's specifications. For quality control, a group of capacitors may be placed in an environmental chamber and the cap...[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]
Introduction
Automakers are working to reduce vehicle weight to reduce CO2 emissions and improve fuel efficiency. Designers are therefore seeking new technologies and design techniques that can...[Details]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
1. Proposal of
reconfigurable
measurement and control system
The measurement and control system generally refers to a system based on
computers
to realize data acquisition a...[Details]
A stepper motor is an electromagnetic mechanical device that converts an electrical pulse signal into an angular displacement or a linear displacement. The stability and reliability of a stepper mo...[Details]
RF/Wirelessly
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