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Metrology is the foundation of industry and social development. The report conference took "Metrology and Testing - The Engine of the New Industrial Revolution" as the conference theme. The conferenc...[Details]
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Black box testing method: Black box testing is also called functional testing and data-driven testing. It treats the software under test as a black box that cannot be opened, and designs test cases a...[Details]
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On August 30, the board of directors of Shenzhen Goodix Technology Co., Ltd. (603160) recently received a written resignation report from Chen Hengzhen, the company's deputy general manager and...[Details]
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Serial port DMA control experiment
I. Background
DMA is the abbreviation of Direct Memory Access, which means "direct memory access". It refers to a high-speed data transmission operation that a...[Details]
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Electrolytic capacitors leak over time. The circuit in Figure 1 can be used to test capacitors to determine if they are worth using. The CREF/RREF ratio sets the limit on leakage. The values show...[Details]
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According to foreign media reports, General Motors and Royal Dutch Shell have reached a cooperation to jointly expand electric vehicle charging networks and home energy plans based on renewable energ...[Details]
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The driver of 12864 LCD is similar to that of 1602, except that it has a few more extended functions, not as good as the drawing function: Here is a comment: Don't simply think that 12864 is 64 on th...[Details]
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Innosilicon Fenghua 1 uses the IMG BXT-32-1024 GPU architecture solution to achieve high performance and server-level functions London, UK – December 3, 2021 – Imagination Technologies today releas...[Details]
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I have also learned the LDE flashing program before, which is generally implemented in the following way: The main idea is to operate the register by operating the register address. The advantage o...[Details]
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"It caught up with the right environment at the right time and had real terminal demand." This sentence has already explained why lithium iron phosphate batteries can return to the mainstream, but it...[Details]
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Touch screen driver name:
dev/mounse0 Let's look at /proc/devices
# cat /proc/devices
Character devices:
……
6 lp
7 vcs
10 misc
13 input
29 fb
90 mtd
……
Check the touch screen: ...[Details]
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On May 28, Weibo digital celebrity @数码闲聊站 posted a rare unboxing photo of Xiaomi MIX Alpha. @数码闲聊站 said: "A Xiaomi employee showed off the first generation of MIX Alpha. We can't buy this pho...[Details]
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On August 11, the Zhejiang Provincial Department of Natural Resources announced the results of a land bidding and auction. The document shows that the land transaction price is 63.83 million yuan, th...[Details]
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CAN bus is a serial communication protocol bus for real-time applications, developed for the automotive industry to replace expensive and bulky distribution wiring harnesses.
Since its a...[Details]
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---Ultrasonic flaw detection system manufacturers In the non-destructive detection of thin steel parts, the traditional measurement method is to use analog circuits. But now the market needs to pro...[Details]