Recently, I was adjusting the serial port DMA and wanted to save CPU resources. Now I can receive the data sent by DMA, but I can only send the first byte. I wrote a sending function myself, but it ca...
The traces on the printed circuit board and the output termination are two major sources of signal attenuation. Clock signal attenuation will increase jitter. In order to avoid the adverse effects of ...
One is the third edition of "Electronic Circuits Discrete and Integrated" (936 pages), author Donald L. Schilling / Charles Belove, published in 1989, the cover of the book looks like this. The other ...
This time we will try to use Baidu's official EasyDL platform to train and deploy a flower recognition network. First, we need to create a model:You can see that the official has provided a variety of...
In fact, it is the difference between vias and through-holes on pads
This PV (via)This PP (through-pad)There is no difference between the two PCBs from the 3D display as shown in the figure below. How...
First, let's review the key points in the previous article:(1) The underlying Event Kernel is driven by messages. The receiver of the message is called a task, but it is not a task in RTOS. A task can...
cruelfoxonsemi and Avnet IoT Innovation Design Competition
Burn the u-boot.bin file generated above into the board using the sfj2410 method under cmd. First, remove the short-circuit cap. . . Then after several consecutive 0s, it starts to burn into the boar...[Details]
Power supply ripple definition Power supply ripple is the most intuitive manifestation of power supply performance. DC regulated power supply is generally formed by AC power supply through rectificat...[Details]
The motor stator and rotor are important components of the motor, and they work together to realize the operation of the motor. This article will introduce in detail the working principles of the m...[Details]
OTM2620 portable 100G tester is a 100G ultra-high-speed test solution launched by OPWILL. The OTM2620 100G tester launched by OPWILL can meet the high-reliability testing needs of 40GigE/100GigE and ...[Details]
On the 28th, Xiaopeng Motors announced that it would build 30 supercharging stations in expressway service areas and within 5 kilometers of expressway intersections, covering the Beijing-Shanghai a...[Details]
Aiming at the working environment characteristics of the remote sensing system, the spectral characteristics of the signals to be processed, and the system signal-to-noise ratio, this paper comprehen...[Details]
With the development of information technology, the requirements for signal measurement technology are getting higher and higher, and the use of oscilloscopes is becoming more and more widespread. ...[Details]
An oscilloscope is a tool used to detect various circuit states and display them in the form of waveforms. It can also be used to check circuit board faults. In many cases, it is more useful than a m...[Details]
Jiwei.com reported that under the background of the rapid development of 5G and the increasing uncertainty in Sino-US relations, RF filters are important components of RF front-ends, and the industry...[Details]
I2C interface experiment
Note: In the AT91SAM7Sxx series, I2C is called TWI.
1. Experimental purpose
Be able to correctly read and write the I2C interface chip memory (24C02), that is, the d...[Details]
A netizen asked in the Meizu community, "When will Meizu release a 5G version of the mobile phone?" In response, Huang Zhang replied that it will be released next year. Huang Zhang said: "...[Details]
Samsung previously announced that it would start selling the Galaxy SmartTag Plus anti-loss device in the United States on April 16. However, the launch date of the U.S. version was delayed, and the ...[Details]
Recently, a new realme phone with model number RMX2173 was connected to the network. It is expected that this phone is the hot-selling model that realme Vice President Xu Qi mentioned will be release...[Details]
At the New Power System Salon jointly launched by the China Energy Research Society and the Natural Resources Defense Council (NRDC), experts said that energy storage is an important part of meeting t...[Details]
An analysis report points out that display technology will become the mainstream of competition in various fields in the past decade, especially in today's prevalence of mobile phones, tablet com...[Details]