Previously, I used lwip1.4.1, which had the concept of varbindlist. Each varbind to be sent was combined into a list, and then a trap was sent.
Now I am using lwip2.1.2, which does not have the concep...
stopped external ....by other core It always fails to execute. When I disable GPIO_IPINPUTConneced of pin 6.6, I can send content. But I can't receive. The similar program has been implemented on UART...
Continued from the previous article~~~~~
Continue the decoupling/bypass journey~~~~~~~·
This article explains in detail the effects of ESR and ESL on decoupling through examples. By comparing theoreti...
My new computer arrived today. When I bought it, there were 512+1T hard drives and 512 only hard drives. Since I have a lot of hard drives and I plan to install them myself, I didn't choose the one wi...
1. The failure conditions are as follows:The driver installation is correct (the board is automatically installed after the USB is plugged in):
If the MCU selected in config is correct, an error will ...
Not long ago, Xiaomi announced a global imaging strategic partnership with Leica, and will jointly usher in a new era of mobile imaging. At noon today, Lei Jun, founder, chairman and CEO of ...[Details]
There are several methods for roundness measurement, including the rotary axis method, three-point method, two-point method, projection method, and coordinate method. The following is a brief introdu...[Details]
As a field indicating liquid level instrument, the magnetic flap level gauge has the characteristics of economic energy saving, high sealing and leakage prevention, and is widely used in industrial...[Details]
With each technological generation, wireless communication systems continue to achieve higher data throughput than before. Historically, this has been achieved through wider channel bandwidths, spectr...[Details]
When we electricians need to measure current without disconnecting the circuit, we need to use a clamp meter (sometimes referred to as a clamp meter or clamp meter). A clamp meter is a meter used to ...[Details]
Rohde & Schwarz (hereinafter referred to as "R&S") has always been at the forefront of technological innovation, shaping the future of the mobile industry with its comprehensive test and measurement ...[Details]
1. In actual applications, although the RA0 input is always high, the I/O port detection is always low. Found a solution to the problem online Link: http://bbs.21ic.com/icview-85731-1-1.html ...[Details]
Pointer instruments are divided into two types: magnetoelectric and electromagnetic. Current pointer multimeters are mainly magnetoelectric instruments. Since electromagnetic instruments have low sen...[Details]
TDA1521 is a dual-channel audio power amplifier integrated circuit, 9-pin single in-line package, output power 2×15w. It has stable performance and good sound quality, and is more common in audio a...[Details]
As a precise flow measurement instrument, electromagnetic flowmeter works through the interaction of a whole set of systems. Not only hardware factors should be considered, but also the working effe...[Details]
The embedded gateway is the key to the distributed device network platform based on Internet technology. It provides a connection between a network communication system with different protocols (such...[Details]
The exploration of solid-state batteries is heating up. After years of silence, QuantumScape finally released the performance data of its solid-state battery. Experts are very excited about what it h...[Details]
The DiTu QR code Bluetooth secure signature verification module uses the nRF52832 SoC to provide secure offline signature verification capabilities The rapid rail transit system in Shanghai, the co...[Details]
Radio Frequency Identification (RFID) technology, as a high-tech technology for rapid, real-time and accurate information collection and processing and the basis of information standardization, has...[Details]
Here is a summary of the three major functions of MMU:
1. Conversion from virtual address to physical address
2.Cache control
3. Memory access rights protection
The Linux kernel...[Details]
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