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State Grid Corporation of China recently revealed that from January to June, the total transaction volume of various trading centers in the company's operating area was 2194.8 billion kWh, a year-o...[Details]
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At present, the electromagnetic environment is becoming increasingly harsh, and the reliability and safety of electronic systems are seriously threatened. It is particularly important to study the ...[Details]
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1 Design requirements
Design and build a digital
voice storage
and playback system, the schematic diagram of which is shown in Figure 1.
Figure 1 Schematic diagram ...[Details]
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The CAN-bus (Controller Area Network) bus is mainly used for data communication between the measurement and control center inside the car. It defines the data link layer and part of the physical la...[Details]
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At around 17:00 on January 31, the second power supply to the new campus of Shiyan Maternal and Child Health Hospital in Hubei Province was successfully delivered.
The new campus of Shiyan Mat...[Details]
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Introduction The correct design of antiparallel diodes requires consideration of various factors. Some of these are related to the technology itself, others are application related. However, the fo...[Details]
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According to Jiwei.com, on April 13, IC Insights updated "The McClean Report 2021". Data showed that the regional market share of IDM, Fabless and total semiconductor sales are all led by American co...[Details]
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Electromagnetic flowmeter is a kind of precision inductive instrument. If the selection or installation is unreasonable, it will have a great impact on the measurement accuracy and the service life o...[Details]
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When we use computers, we often encounter various faults. In fact, many faults are related to the power supply. Power failure does not only mean that the computer cannot start. Power failure may also...[Details]
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Traditional PWM control technology is mostly used for driving control of two-level circuits. Its main method is sinusoidal pulse width modulation (SPWM). The modulation wave is a sine wave. The contr...[Details]
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Samsung's next-generation Exynos flagship chip is expected to be named Exynos 2100, and the first model will be the Samsung Galaxy S21 series. Like Qualcomm Snapdragon 875, Samsung Exynos 2100 is als...[Details]
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reason The serial port entered the OR (overload error) interrupt Solution You must add if(UART1_GetITStatus(UART1_IT_RXNE )!= RESET). If you do not add it, UART1- DR will be read abnormally and the...[Details]
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In the previous courses, we have learned a lot about the concept of clock, such as the main clock of the microcontroller we use is 11.0592M, the I2C bus has a clock signal line SCL, etc. These c...[Details]
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Ultrasonic level meter is a common type of level measuring instrument. Its English name is Ultrasonic Level Transmitter. It is a level measuring instrument controlled by a single-chip microcomputer. ...[Details]
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1: Interrupt enable register IE The CPU's opening and masking of all interrupts of the interrupt system and a certain interrupt source are controlled by the interrupt enable registe...[Details]