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In C language, file mapping can be used to open up a memory space. Each process and thread can use this shared memory space to exchange data, that is, write and read operations. This involves a con...[Details]
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In the process of developing towards 4G mobile phones, the biggest challenge that portable system design engineers will face is to support multiple existing mobile communication standards, includin...[Details]
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Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited filter
#define A 10
char value;
char filter()...[Details]
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Many friends say that the delay time cannot be accurately controlled in C and it is not as intuitive as assembly. In fact, this is not the case. A deep understanding of the delay function will help y...[Details]
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Interrupts are an important type of system resource, which can play an indispensable role in the operation of hardware. Basically, every hardware will have corresponding interrupts, but it is just...[Details]
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With the gradual development of communication technology and the continuous advancement of spectrum utilization technology, the current frequency range is changing towards higher and higher positions...[Details]
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Although there are constant voices saying that "Moore's Law is coming to an end", the IC industry's research breakthroughs in more advanced process technology continue to "extend its life". Not long ...[Details]
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Sustainable development is also a key factor that electric vehicle charging facilities need to consider. The development of charging facilities needs to consider sustainable development factors, su...[Details]
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Due to the advantages of light-emitting diodes (LEDs) such as energy saving and high brightness, they are used in various lighting fields. However, since their light-emitting angle is generally only ...[Details]
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It is known as the "crown jewel of the manufacturing industry". In 2022, the Chinese market size will be 60.9 billion yuan, accounting for 45% of the world, making it the largest market. In 2022, t...[Details]
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The eddy current testing methods for copper and copper alloy tubes are classified according to the type of probe used. There are three types: through-coil method, rotating point probe method, and inte...[Details]
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One of the most important ways to determine the quality of a digital transmission system is to measure its bit error rate (BER). The BER is calculated by comparing the transmitted bit sequence with t...[Details]
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Isolating users from sensitive electronics is an important consideration for motor control systems. Safety isolation is used to protect users from harmful voltages, while functional isolation is sp...[Details]
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I have recently become fascinated by the RTOS rtx51. After a week of hard work, I ported the entire control system code I had previously written to rtx51 tiny. Here is an excerpt from the introducti...[Details]
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Industrial control computers are computer systems specifically used in the field of industrial automation. Their structural characteristics are mainly reflected in the following aspects:
...[Details]
Analog electronics
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