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Capturing abnormal signals in an oscilloscope involves two aspects: the functional indicators and performance indicators of the oscilloscope: 1. The waveform capture rate index of a digital oscillo...[Details]
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What I mean by ARM bare board debugging is that after the ARM PCB board is made, the board that comes back with the patch has no program and is powered on for the first time. The reason why I wrote a ...[Details]
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Recently, it was learned from the "National Standard Information Public Service Platform" that two latest requirements and standards for smart car sensors and surveying and mapping data have begu...[Details]
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1. Connect Jlink PC ok2440 2. Power on ok2440 3. Open J-link ARM v4.08k in the Jlink program (you can see the model of Jlink and various parameters of CPU) and open DNW. Press any key to prevent the ...[Details]
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On November 3, the "2020 Hard-Core China Chip Leadership Summit and Selection and Awards Ceremony" was held in Shenzhen, and the results of the 4-month "2020 Hard-Core China Chip" selection were gran...[Details]
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Nanfang.com has a small walkie-talkie that allows users to experience "free calls" in a small area. It has not only gradually become the latest choice for "travelers", but is also becoming increasingl...[Details]
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July and August every year are the peak months for fresh graduates to join the workforce. The young talents who stand out from many competitors may be hit by the pressure of work before they have tim...[Details]
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Repeatability of measurement results, reproducibility of measurement results, and stability of measuring instruments are basic terms for quantitatively describing measurement results and quantitati...[Details]
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On May 7, 2023, Ronghe Yuanchu, together with Ronghe Leasing, Qiyuanxin Power, Shanghai Electric Investment Ronghe and other ecosystem companies, attended the first advanced battery and energy stor...[Details]
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This design requires the control of the horizontal and elevation angles of a certain artillery to meet the requirements of a fast position servo system. The angle control system ...[Details]
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Single-phase active power factor correction (APFC) technology is widely used in switching power supplies, variable frequency home appliances and other fields, and plays a very important role in eli...[Details]
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According to statistics from the China Association of Automobile Manufacturers, China's production and sales of pure electric vehicles reached 986,000 and 984,000 respectively in 2018, up 47.9% and 5...[Details]
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Microcontroller simulates I2C bus and 24C02 (I2C EEP ROM ) reading and writing examples (c source code) /* When using the 51 series microcontroller, it is sometimes necessary to simulate the I2C bu...[Details]
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I was porting 2440 and happened to look at the 2.6.32 code. I found the following structure definition in mach-smdk2440.c of smdk2440:
static struct map_desc smdk2440_iodesc __initdata =...[Details]
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Functions and classification of oscilloscopes An oscilloscope is an electronic measuring instrument with a wide range of uses. It can transform invisible electrical signals into visible images, makin...[Details]