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1. Question requirements In the code test in the previous lecture, the data sent from the computer needs to be accessed by the microcontroller using an array, and then the data is displayed on the ...[Details]
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1 The necessity of conducting safety risk assessment of old elevators
Elevators are transportation tools that are closely related to people's lives. At the same time, they are special equipment with...[Details]
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Note: Kernel version: 2.6.30.9 Busybox version: 1.15.2 Working user of PC Linux and development board Linux: root 1.配置内核: Networking support --- Networking options --- * Packet socket * Unix domai...[Details]
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0 Preface 2022 Update Notes: This chip is too complicated, so it’s best not to touch it if you can. The official information left too little at the time (or maybe I’m too inexperienced). If you wan...[Details]
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On the morning of December 20, the first batch of 7 new economy enterprise headquarters in the second phase of Shandong Province
Robotics
Industrial Park were fully capped. It is reported t...[Details]
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This color light controller can control five colored lights to light up row by row, and then turn off row by row. If a certain number of colored lights are combined and connected, a scene of color ...[Details]
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1 Three-phase short circuit in infinite power supply system
First, the system diagram of the infinite power supply system is given, as shown in the figure below. A three-phase short circuit oc...[Details]
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According to CCTV, the head of a Shenzhen PCB company said in an interview that due to the impact of the epidemic, the demand for orders for products related to the stay-at-home economy and new energ...[Details]
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Today we will introduce the overcurrent protection circuit of the motor. When the motor starts, press the lock button SBi once, and when the start is complete (after the motor speed stabilizes), pr...[Details]
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Power monitoring instruments are an emerging and subdivided industry in the electrical instrument industry. They are classified as installed digital instruments, which have evolved from analog ...[Details]
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Recently, BYD announced a patent for a "hexagonal" battery. From the patent drawing, the battery cell is in the shape of a hexagonal prism, and looks like a honeycomb when viewed from above, which is...[Details]
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The teacher asked me to design a timer for a single-chip microcomputer. The topic was very easy, so I only made a clock program. The specific code is as follows ORG 0000H LJMP MAIN ORG 000BH LJ...[Details]
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introduction
Sound card technology is one of the key technologies of multimedia computer technology.
Its emergence makes computers more expressive. At present, the sound quality of e...[Details]
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1. Sources and hazards of harmonics
Harmonic wave refers to the amount of electricity contained in the current whose frequency is an integer multiple of the fundamental wave. It generally ...[Details]
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There are significant differences between the 6410 DMA controller and the 2440 DMA controller.
DMA operation steps in S3C6410:
1. Decide whether to use secure DMAC (SDMAC) or general DMAC...[Details]