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Near Field Communication (NFC) is a short-range two-way communication technology that allows two devices to communicate and interact within a distance of a few centimeters, with a maximum data tran...[Details]

The previous article is about ARM Linux kernel booting (1). Continuing from the previous article, look at the following source code: /*  * Setup the initial page tables.  We only setup the barest ...[Details]

The main functions of the SD card driver include initialization, reading, writing, erasing, etc. 1.  Initialization  steps: (1)            Delay of at least 74 clocks (2)            Send CMD0, ne...[Details]

Abstract: This paper introduces an intelligent control system for a combine harvester with a P87C2591 single-chip microcomputer as the main controller, and grain flow sensors, grain moisture sensor...[Details]

Since the country launched the "Photovoltaic Leader Program" in 2015, the domestic photovoltaic industry has developed rapidly. Various companies have brought out their best skills to research and ...[Details]

In regular industrial production, there are special screening and testing workshops equipped with many general and special screening and testing equipment and instruments. However, it is impossible f...[Details]

Overview AT86RF401 is a RF wireless data transmitter with an AVR RISC microcontroller integrated in the single-chip computer. The output frequency range is 250-450MHz, the maximum output power is +...[Details]

　　When you see the title, you may ask, what is there to discuss about FFT? Is there any essential difference in the FFT function of the ZDS2022 oscilloscope? Let's briefly review several important pa...[Details]

With the continuous improvement and maturity of high-frequency switching power supply technology, its application in railway signal power supply systems is also increasing rapidly. At the same time, ...[Details]

1. The problem of 5V output of switching power supply People often complain that their designed systems have no problems when they are debugged and aged in the laboratory or product...[Details]

A leakage relay is a protective device that can cut off the power supply of a protected line when the leakage current of the protected line reaches a set value. It plays a very important role in the ...[Details]

In recent years, Xiaomi has gradually expanded its share in the terminal market and has become one of the four largest smartphone manufacturers in Europe. It is reported that Xiaomi has been preparin...[Details]

Auto supplier Bosch said on Sunday it will need to cut up to 1,500 jobs at its two German plants by 2025 to adapt to changing needs and technologies in the auto industry. Germany's Automobilwoche fir...[Details]

"China's chips should take the third path." On August 24, Academician Ni Guangnan said in his speech at the 2022 RISC-V China Summit: At present, the mainstream CPU market is still monopolized by X86...[Details]

To set the system to work in svc privileged mode, we know from the previous learning that this requires setting the CPSR program status register. In the ARM Architecture Reference Manual.pdf d...[Details]