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The SysTick timer is bundled in the NVIC and is used to generate the SYSTICK exception (exception number: 15). In the past, most operating systems required a hardware timer to generate the tick inter...[Details]
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Function implementation: When the east-west light is green, the north-south light is red. After a period of time, the east-west green light turns yellow and flashes three times, while the north-south...[Details]
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Iris recognition technology is an important way to identify unique individuals in the field of biometrics. We are generally more familiar with fingerprint recognition and face recognition. Currently,...[Details]
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//RTI real-time interruption experiment //The RTC module includes a status and control register, an 8-bit count register and an 8-bit modulus register //The real-time interrupt function is used to ge...[Details]
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Traditional oil giants are accelerating their transformation to renewable energy business. In addition to installing charging piles at gas stations and acquiring electric vehicle charging network o...[Details]
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Recently, Lens Technology said in an interaction with investors that the company is a global leader in the field of consumer electronics and automotive electronic structural and functional parts, and...[Details]
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1. Interruption (1) External interruption Open the general interrupt EA, select external interrupt EX0 or EX1, because IE is addressable, so directly operate on EX0 or EX1, then set IT0 (in TCOD) t...[Details]
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The most typical application of single-chip I/O is to form a display circuit through the I/O port and the 7-segment LED digital tube. We start with the commonly used LED display principle and explain ...[Details]
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0 Introduction
The increase in clock frequency and the high power consumption caused by leakage current of deep submicron semiconductor manufacturing process have made
the design of
proce...[Details]
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Section 001 Create a new directory, create and edit files First, let's take a look at the Ubuntu toolbar. After installing Ubuntu and entering the graphical interface, there are 10 tool icons on the ...[Details]
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Powerful clock interrupts
In the design of single-chip microcomputer programs, setting a good clock interrupt will enable one CPU to play the role of two CPUs, greatly facilitate and simplify t...[Details]
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I. Overview
Micro Electro-Me-chanical Systems (MEMS) refer to micro devices or devices that can be produced in batches and integrate micro mechanisms, micro sensors, micro actuators, signal process...[Details]
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LED is a point light source, which is different from the energy-saving lamps or incandescent lamps currently on the market. As the name suggests, a point light source is a light emitted from a poi...[Details]
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People react to things or signals at different speeds, and their reaction abilities vary. The reaction ability tester introduced in this example uses light-emitting diodes to test people's reaction ...[Details]
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The ARM processor startup process involves three aspects of knowledge:
Startup method
Address layout
Start the process
The boot process of the S3c2440 ARM ...[Details]
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