I recently bought a HUB on Taobao. The merchant showed it as a HUB3.0 expansion dock. After testing, I found that it could not measure 3.0 data. After disassembling it, I was able to reveal its true a...
Although overflow cannot be completely avoided during program development, it poses a huge threat to the system. Due to the particularity of the system, when overflow occurs, attackers can exploit its...
Three issues about LDO load regulation, linear regulation and voltage drop1. Is the calculation of LDO load regulation and linear regulation the same as that of switching power supply? Is linear regul...
As the title says, when moving a component, the following picture is displayed. Multiple components are locked together for movement. How to unlock this lock?...
1. AREA
The AREA directive instructs the assembler to assemble a new code or data segment. A segment is an independent, named, invisible block of code or data that is handled by the linker.
Synta...[Details]
October 2020 was a big month for startups across the automotive space, with significant funding coming in all areas. Three startups from China each received more than $100 million in investments in A...[Details]
According to foreign media reports, more and more companies are now seeking to promote autonomous driving and reduce traffic accidents to create a safer and more comfortable automobile society. To ac...[Details]
Although the sales volume of the heavy-duty truck market has dropped from 1.587 million units in 2020 to 619,000 units in 2023, the sales volume of new energy heavy-duty trucks has cont...[Details]
I have been engaged in microcontroller-related work for many years. I first started learning from the 51 series microcontroller. I want to write down my learning experience and discuss with you the sh...[Details]
CTC: Clear counter mode when compare match occurs. When the value of counter TCNT0 is equal to compare register OCR0, counter TCNT0 is automatically cleared. OCR0 defines the maximum (TOP) value of t...[Details]
TrendForce's TrendForce Research Institute released the revenue and rankings of the world's top 10 IC design (Fabless) manufacturers in the first quarter of 2019. Image source: TrendForce From ...[Details]
Abstract: From the perspective of voltage stress of switching devices, the dual-switch forward converter has more advantages than the general forward converter. This paper proposes two methods of s...[Details]
"At present, after the Redmi K30 Pro is released, I should not need to go to the factory to tighten the screws..." At noon today, Lu Weibing, vice president of Xiaomi Group, president of China...[Details]
1. This design uses 51 single-chip microcomputer as the main controller 2. Add external sound playback equipment such as speakers to realize the hardware circuit of the music performance controller 3...[Details]
With the development of smart cars, the design of in-car touch screens is increasingly being used in every corner of the car, and tactile feedback has also brought new functions to the car interface ...[Details]
Robotics is a frontier subject in the development of science and technology today. Mobile robots are an important branch of robotics research. They integrate artificial intelligence, control theory, i...[Details]
The early 51 MCU had very low driving capability. P1, P2 and P3 ports can only drive 3 LSTTL input terminals, while P0 port can drive 8. If you want to drive more devices, you need to use a "bus drive...[Details]
The automotive industry is looking for innovative ways to keep drivers and passengers safe, starting with small safety enhancements and ultimately aiming to create fully autonomous vehicles. The au...[Details]
1. Overview of the communication architecture industry chain
Early cars used a single point-to-point communication method and had little contact with each other. Each signal transmission requi...[Details]
Mobile and portable
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