Dear experts, I'm studying the USB program of stm32 recently. In the DEMO program usb_endp.c of virtual com port, there is a programvoid SOF_Callback(void){static uint32_t FrameCount = 0;if(bDeviceSta...
[b]See the pictures on page 4[/b] Location: Beihang Table Tennis Hall. Time: To be determined. Bet: Winner gets 2 popsicles, loser gets 1 (sponsored by soso) A little bit arrogant～～～Haha, if you are n...
Since about the 1980s, many industry experts have claimed that analog circuits have reached a dead end and that digital applications will shine in the electronics world, including integrated circuits ...
Currently, Ethernet and Wi-Fi are widely used in the IoT world. The demand for related network applications is increasing year by year. In addition to Ethernet and Wi-Fi, wireless transmission interfa...
I use a single-chip microcomputer to transmit division ratio and other data to a frequency synthesizer. I would like to ask: when the power is off, does the frequency synthesizer save the division rat...
1. What is DTU?
Answer: DTU is the abbreviation of Data Terminal Unit. In a broad sense, during communication, the module units responsible for sending data information at both ends of the data transm...
Hardware designers have begun to adopt FPGA technology in high-performance DSP designs because it can provide 10-100 times faster computing than PC-based or microcontroller-based solutions. Previou...[Details]
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[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]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
Nippon Electric Works and Volvo Technology Japan have developed a wireless power supply system for electric vehicles (EVs). Using this system, the two companies have successfully conducted an exper...[Details]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[Details]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]
Preface
In recent years, white light LEDs have gradually replaced incandescent bulbs and fluorescent lamps because they have unparalleled advantages over traditional light sources in terms...[Details]
0 Introduction
With the rapid development of social economy and science and technology, electric locomotives, subways and electric vehicles will be widely used. The power conversion and cont...[Details]
0 Introduction
Wireless Sensor Network (WSN) monitors the target by deploying a large number of sensor nodes in the target area. WSN realizes the positioning and tracking of the target, determi...[Details]
1 Development of LED Film and Television Lighting
1.1 The significance of developing film and television lighting
Lighting power consumption accounts for a large proportion of the total p...[Details]
Leakage current is generated by parasitic resistance paths between the measurement circuit and a nearby voltage source. This current can significantly reduce the accuracy of low current measurement...[Details]
Mobile phones, MP3s, tablet computers, laptops, digital cameras, handheld game consoles, navigation devices, etc., all these mobile devices are powered by mobile batteries, and the battery life is ...[Details]
stm32/stm8
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