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July 21 news: The official Red Magic gaming phone announced today that the Red Magic 5S gaming phone will be released on July 28, with the slogan "Ice Wind Silver Wings, Faster than Fast". Alth...[Details]
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From May 22 to 26, 2023, the Automotive Electronics and Electromagnetic Compatibility Sub-Committee (SAC/TC114/SC29) of the National Automotive Standardization Technical Committee (hereinafter referr...[Details]
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According to Reuters, people familiar with the matter revealed that after Huawei was blacklisted by the US government in May, Huawei's research team in the United States, Futurewei Technologies, has ...[Details]
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Test buses have developed rapidly in recent decades: from the early general purpose interface bus GPIB to the recent VXI, Peripheral Component Interconnection (PCI), PXI, IEEE1394, and Universal Seri...[Details]
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Reasons why the ground wire is charged
Electricity is an indispensable energy source in our lives. It brings a lot of convenience to our lives, but it also hides a lot of safety hazar...[Details]
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1. Timer/Counter Control Register TCON The address of the timer/counter control register TCON is 88H, which can be read and written. Its functions are as follows: TCON.7 TCON.6 TCON.5 TCON.4...[Details]
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When SM2..0 is 000, the SLEEP instruction will put the MCU into idle mode. In this mode, the CPU stops running, while SPI, USART, analog comparator, ADC, two-wire interface, timer/counter, watchdog a...[Details]
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Jiwei.com reported on November 5 that the iPhone 12 series was removed from Apple's Tmall flagship store today, sparking speculation. Tmall responded by saying "please look forward to the surprises o...[Details]
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introduction
Large-capacity transformers must use appropriate cooling devices to dissipate enough heat to maintain safe and stable operation of the transformer. When the transformer cooler is ...[Details]
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1. Introduction
With the rapid development of radio technology, more and more industries have begun to use radio. The data transmission rate has increased from low speed to high speed, and the...[Details]
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On February 4, GigaDevice stated on an interactive platform that the company expects to launch self-developed DRAM products in the first half of the year. According to GigaDevice, its first self-dev...[Details]
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In early 2009, many domestic and foreign media reported that the EU was going to ban the sale of plasma TVs. Paul Gray, head of the European Television Industry Research Association, denied this, b...[Details]
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Circuit diagram and simulation file download: http://www.51hei.com/bbs/dpj-20404-1.html
Below is the program source code :
#include reg52.h
#define uchar unsigned char
#define uint un...[Details]
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AT89C51 is used as the main device. Four PCF8591 chips are connected to the I2C bus. The chip addresses are (OOOb, OlOb, 020b, 400b) respectively. P3.6 of 89C51 is used as the SCL signal. P3.7 is u...[Details]
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I have used Qemu to run/debug arm linux several times, but I forgot about it after a while. I had to look up the information again every time, which wasted a lot of time. This time I made the whole...[Details]