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ARM comprehensive experiment
1. Experimental purpose
Learn the method and program structure of making a complex application, and combine the knowledge learned from the previous 16 exper...[Details]
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In traditional machinery, shafts are driven by mechanisms. For example, as shown in the figure below, the master and slave shafts are connected by a flat belt. When the master shaft starts to rotat...[Details]
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Have you ever used the pass/fail testing feature in a digital oscilloscope? This is a great tool if you need to perform repetitive testing on small batches of devices. You can also use pass/fail test...[Details]
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1 Characteristics of 555 time base circuit
The 555 integrated circuit was originally used as a timer, so it is called a 555 timer or a 555 time base circuit. There are dozens of compone...[Details]
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The conversion circuit is composed of NE555 time base oscillator, 74LS169 counter and MAX309 multiplexer. It can display multiple trace signals simultaneously through one Y channel. The circuit is s...[Details]
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On the morning of November 9, at today's Operating System Industry Summit 2021, Huawei and all community partners jointly donated the Euler open source operating system (openEuler) to the Open Atom O...[Details]
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Recently, I used an ADC sampling chip ADS7822 from TI (Texas Instruments) in my project. Now I send my circuit and program to share with you. The most important thing is to have a deep understanding ...[Details]
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Due to the outbreak, the world has undergone earth-shaking changes, and people have begun to work remotely and receive education online. As a result, global notebook shipments exceeded 200 million un...[Details]
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The program that determines the reception and transmission of data by the flashing of the light has a receiving end and a transmitting end If 24L01 uses reg51 then both devices must use reg51, if th...[Details]
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1.1 Basic units
(1) Meter?
The distance travelled by light in a vacuum during a time interval of 1/299 792 458 second.
(2) Kilogram?
Unit of mass, equal to the mass of the int...[Details]
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Basic steps for creating CAM data with CAM350
Each PCB board is basically composed of an aperture layer, a DRILL layer, a circuit layer, a solder mask layer, and a character layer. ...[Details]
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On September 11, 2019, the 7th International IoT Sensor Technology Summit, "IoT World Sensor First", was held as scheduled. Three years later, the conference returned to Wenzhou Yueqing for the secon...[Details]
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When making electronics, we inevitably have to use a variety of test instruments, and one of the more commonly used ones is the oscilloscope. When using an oscilloscope, we use probes to measure phys...[Details]
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With the development of superconducting material applications, filters made of high-temperature superconducting materials have shown unprecedented high performance. The RF receiver front end composed ...[Details]
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Analysis process:
Program entry
Phase 1 Program Analysis
Second stage program analysis
2440 Development Board:
1.uboot entry:
To see the entry of...[Details]
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