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The macro definition of _BV is as follows:
#define _BV(bit) (1 (bit))
The following example illustrates the application method:
The method to set PORTA0 of PORTA is as follows:
PO...[Details]
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NXP Semiconductors of the Netherlands has started selling the "TFA9887", a Class D audio amplifier IC for small speakers that can increase output power by five times (English release). The company sa...[Details]
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Add the storage path of arm-linux-gcc in /etc/profile
Specifically, enter #sudo gedit /etc/profile in the command line and press Enter
export PATH=$PATH:/the path where your arm-linux-gcc is stored ...[Details]
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A frequency meter is a measuring instrument that uses counting method, width measurement method and other methods to measure the frequency of a signal. It is mainly composed of four parts: time base ...[Details]
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1 Introduction
At present, there are many products for residential electricity meter reading in China. Judging from the actual investment in recent years, the application of IC card meters and...[Details]
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II. Basic knowledge of TIM In the previous article, we talked about some knowledge about TIM. This article will talk about the knowledge related to TIM interrupts. TIM block diagram: TIM4 is a ba...[Details]
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The National Institute of Standards and Technology (NIST) recently demonstrated a delay line memory controller using microelectromechanical systems (MEMS), which is expected to serve as a temporary m...[Details]
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ETC is not a new product, so why has it taken so long to become an "Internet celebrity"? "You can get through the station in three seconds, and the toll is 5% off. The equipment is free, and you ca...[Details]
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Introduction
Compared with mechanical potentiometers, digital potentiometers have many advantages. However, in some applications, the resolution of digital potentiometers often does not meet ...[Details]
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With the advancement of the electricity market, microgrid clusters are an important application scenario for electricity market transactions. In subsequent research, we will study the optimization ...[Details]
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Calibrating a spectrum analyzer typically involves making a variety of measurements, each of which requires an appropriate input signal. A typical calibration process uses a series of signal generator...[Details]
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The range of the nominal indication interval refers to the absolute value of the difference between the two extreme values of the nominal indication interval, and the measurement interval refers ...[Details]
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Classification and selection of sectors:
According to the figure below, we can see that the three-phase inverter circuit has a total of 6 switching tubes. Since a short circuit cannot be forme...[Details]
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An oscilloscope is an electronic measuring instrument with a wide range of uses. It can transform invisible electrical signals into visible images, making it easier for people to study the changing...[Details]
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Systems requiring advanced video graphics capabilities have always been a challenge to implement. Traditionally, these systems have required a complex combination of hardware features and software fu...[Details]