Last time, I used the interrupt method to read the key code to improve efficiency, but there was also a small problem. After CH450 scans the key, it will pull down a low-level pulse on the INT pin. My...
2803x and 2806x use CAN communication for online program upgrade. The idea is that the program is divided into boot program and main program. The boot program jumps to the main program. Both programs ...
[align=center][/align] [size=4]Now the country is pushing for new energy vehicles (or electric cars, if you will). In Beijing, gasoline cars can’t get license plates at all, and new energy vehicles ha...
My family member was stabbed twice: once in the head and once in the left hand.At that time, the treatment in the emergency room was as follows:craniocerebral injury;impaired consciousness for 5 hours...
In a world full of uncertainty, technology is driving people forward. The rise of the Internet of Things fully proves this. In the IoT system, a large number of interconnected devices with unique iden...
In the automotive industry, there has always been a saying: There are only two kinds of hybrids in the world, one is Toyota, and the other is everything else. Toyota's THS hybrid system has always ...[Details]
Against the backdrop of the ups and downs of the COVID-19 pandemic, the difficult recovery of the world economy and profound changes in the international landscape, the steadily advancing cooperati...[Details]
The glorious past of 51 single chip microcomputer 51 single-chip microcomputer refers to MCS-51 series single-chip microcomputer, CICS instruction set. Developed by Intel, its structure adds instru...[Details]
When the watt-hour meter is connected to the circuit under test, the voltage U of the circuit under test is applied to the voltage coil, forming an alternating magnetic flux in its core. A part of thi...[Details]
This is the circuit diagram of an audio/video modulator. This circuit converts audio and video signals into UHF TV signals. It is desirable to connect the video signal originating from a camera or ...[Details]
Recently, the 220 kV Guanyintang substation invested and constructed by Chongqing Liangjiang Changxing Electric Power Co., Ltd. (hereinafter referred to as Changxing Electric Power) was successfull...[Details]
Today, a friend who is an enthusiast wanted me to release video tutorials on AVR and ARM. I said that you can record videos on ARM, but there is no need to talk about AVR. This friend was puzzled whe...[Details]
The probe is the first step for us to observe the waveform. It is an electronic component that connects the device under test to the input of the oscilloscope. Engineers use it every day to capture w...[Details]
AMD released its second quarter financial report for fiscal year 2020, with revenue of US$1.9 billion and net profit up 349% year-on-year. The report showed that AMD's second-quarter revenue was US...[Details]
The author bought a lithium battery charging board and modified it into a charger with adjustable output voltage and output current.
The circuit is shown in the attached figure: This lithium b...[Details]
To understand how robot replacement might occur, it’s helpful to break our relationship with robots into four categories.
The first category is: humans can do it, but robots can do it better. Hum...[Details]
Keysight oscilloscope signal integrity has always been a hot topic in the electronics world. In today's designs, shrinking margins and increasing data rates mean measurements must be more accurate th...[Details]
IT Home reported on March 15 that the entire Xiaomi 10 series released in February this year is equipped with Snapdragon 865 processor + LPDDR5. Xiaomi once claimed that Snapdragon 865 + LPDDR5...[Details]
On October 19, at the 2021 Yunqi Conference, Alibaba's semiconductor company Pingtou Ge released its self-developed cloud chip Yitian 710. This chip is the industry's most powerful ARM server chip, w...[Details]
The concept of jitter and jitter measurement method
In digital communication systems, especially synchronous systems, as the system clock frequency continues to increase, time jitte...[Details]
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