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The last line after startup prompts can't access tty, job control turned off, which means that the console cannot be entered. The reason is that there is a problem in the /etc/inittab file
Sol...[Details]
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0 Introduction
The sensor
part
of the traditional gas pressure measuring instrument
is separated from the data acquisition system, and has poor anti-interference ability. In additi...[Details]
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The AWE held in Shanghai this year has become a grand event for the home appliance industry, and this year is very unusual, that is, the concentrated outbreak of 8K TV products. After all, 4K has bec...[Details]
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The Origin of the Oscilloscope Nobel Prize winner, German physicist KF Braun (Figure 1) invented the CRT oscilloscope in 1897 out of curiosity about physical phenomena. He applied an oscillating sign...[Details]
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After the Nintendo Direct yesterday, players and media thought that Nintendo would not release any more news during the Tokyo Game Show. However, early this morning (September 6), Nintendo in ...[Details]
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N76E003 is an enhanced 8-bit 8051 core microcontroller with flash. The instruction set is fully compatible with the standard 80C51 and has a built-in 16M crystal oscillator. Therefore, the infrared t...[Details]
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With the continuous development of technology, the electric window system has become an indispensable part of modern cars. The application of MOS (metal oxide semiconductor) tubes has injected new ...[Details]
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The oscilloscope probe is crucial to the accuracy and correctness of the measurement results. It is an electronic component that connects the circuit under test to the input of the oscilloscope. The ...[Details]
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Recently, a reporter from Science and Technology Daily learned from the Jinan Institute of Quantum Technology that Zhang Qiang and Jiang Yangfan of the institute cooperated with the team of Academici...[Details]
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In the specific testing process, what bandwidth is more appropriate for the oscilloscope?
First, look at the following example.
As can be seen from the above figure, the larger the bandwidth...[Details]
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S3C2410 watchdog has only two functions 1. As a regular clock, it can generate interrupts 2. Used as a watchdog timer, when the clock decreases to 0 (timeout), it will generate a clock signal of ...[Details]
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1 Introduction
In actual radio and television transmission work, the entry test of new transmitters and the daily indicator test of transmitters all involve audio testing. The audio spectrum anal...[Details]
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Recently, Suzhou Shiguang Xinke Technology Co., Ltd. (hereinafter referred to as "Shiguang Xinke") has undergone industrial and commercial changes. The new shareholders are Baidu affiliated companies...[Details]
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On May 9, Huawei officially announced that it will work with the first batch of 18 automobile companies to establish a "5G automotive ecosystem" to accelerate the commercialization of 5G technology i...[Details]
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Simple concept of ArmV8 registers: ARMv8 has two execution modes: AArch64 executes A64 instructions and uses 64-bit general-purpose registers; AArch32 executes A32/T32 instructions and uses 32-bit ge...[Details]
Analog electronics
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