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When debugging high-speed signals, engineers must first debug and verify whether their designs meet physical layer specifications. At this stage, signal integrity (such as eye diagrams and jitter) ...[Details]
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I bought the first generation Winning 890C digital multimeter ten years ago. I lent it to a friend a few days ago. After I returned it, the display started but there was no display. After removing ...[Details]
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2019 is coming to an end. As we bid farewell to the old and usher in the new, we will review the development of the semiconductor industry in 2019 by reviewing hot events. Affected by the internation...[Details]
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Encoder control of inverter speed is a common industrial automation control method. It uses the encoder to monitor the motor's speed, position and other information in real time, and feeds this inf...[Details]
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1. STM8S external interrupt wake-up First understand the interrupt resources of STM8S Let's look at the interrupt management of STM8S. STM8S uses software priority and hardware priority to contro...[Details]
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Readers familiar with the Azure platform know that Microsoft Azure service management is divided into three levels: 1. Enterprise Service Contract 2. Subscription: Under one enterprise service ...[Details]
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Common types of microcontrollers are:
1.AVR microcontroller;
2. Motorola microcontroller;
3.MicroChip microcontroller;
4.Scenix microcontroller;
5.EPSON microcontroller;
7.GMS90 single ch...[Details]
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Continuing from the previous article, let’s first explain why the “resonance” phenomenon occurs, as shown in the following figure: If the duty cycle of A1 is 25%, the duty cycle of B2 is 10%, and t...[Details]
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We know that when the load of the motor increases, the speed of the series-excited motor will slow down. This is a passive change in the motor operation process due to load changes. So from the per...[Details]
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2.6.14 kernel, according to the posts on the Internet, the workload is not very large, now let's sort out the ideas, let's start with the hardware, the LCD model I use is LTV350QV-F04. 320×240, here ...[Details]
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Abstract: Using PLC to realize the RTU function of subway substation automation can well meet the requirements of "three remote". This system uses Modicon Quantum series PLC to realize the RTU func...[Details]
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Most digital functions can be divided into: data channel, storage, control unit, I/O. Adders and multipliers belong to the data channel part.
Generally, the following requirements are imposed o...[Details]
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HB LED Driver Circuit Abstract: This article discusses how to properly select HB LED drivers for automotive lighting applications, introduces different types of HB LED driver topologies, and gives r...[Details]
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1 AT89S52 MCU Introduction
1.1 Main features of the chip
The AT89S52 microcontroller is a high-end, enhanced product recently launched by Atmel. It is a low-power, high-performance CMOS 8...[Details]
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In recent years, LED has developed rapidly. Traditional lighting companies have begun to shift their development focus to LED, and emerging LED companies have also actively laid out their plans in the...[Details]
DIY/Open Source Hardware
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