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Abstract: In its simplest form, the PC voltmeter consists of a 4-channel, 10-bit A/D converter (IC2) with a few passive components, connected to the PC printer port via a 25-pin male D-type connector....[Details]
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I saw the following code when looking at the lowlevel_init.S file of U-BOOT:
lowlevel_init:
ldr r0, =SMRDATA
ldr r1, _TEXT_BASE
sub r0, r0, r1
ldr r1, =BWSCON
add r2, r0, #13*4
0:
ldr r3, , #4...[Details]
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Well-known password management software NordPass released a list of the 200 most commonly used passwords in 2021 in November 2021. Unsurprisingly, the most widely used passwords are still simple comb...[Details]
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2019 is the year of the IoT market explosion. With the increasing use and variety of IoT devices, developers are seeking flexible connection solutions to help them quickly bring differentiated produc...[Details]
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1 Introduction There are many methods for testing the attitude angle of a flying body, such as magnetic sensors, high-speed cameras, accelerometers, and gyroscopes. Each method has its advantages an...[Details]
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If the SMPS
switching
frequency is designed to be non-fixed and to change around a certain frequency, its
EMC
electromagnetic wave will spread out and will not produce large pea...[Details]
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In modern control systems, angle measurement devices are critical components that require high precision, and their measurement accuracy directly affects the performance and accuracy of the entire ...[Details]
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According to foreign media reports recently, the U.S. International Trade Commission (ITC) ruled that South Korean battery manufacturer SK Innovation did not infringe LG Energy Solution's battery-rel...[Details]
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In most measurement and test systems, the nature of grounding can basically be divided into four categories: 1. Electrical grounding: Originally, it was a conductive connection between a circuit an...[Details]
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Based on the company's business development needs, the company plans to sign the "Guidong County 100MW/200MWh Shared Energy Storage Power Station EPC General Contracting Contract" with Guidong Guin...[Details]
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With the widespread application and development of power electronics technology, a large number of nonlinear loads have been added to the power supply system, which will cause the distortion of the gr...[Details]
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#include reg52.h sbit CS=P2^7; sbit SK=P2^6; sbit DI=P2^5; sbit DO=P2^4; /* extern unsigned char ReadChar(unsigned char address); extern void WriteChar(unsigned char address,unsigned char InData); e...[Details]
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Project: 431 plus photocoupler feedback flyback Phenomenon: The output voltage regulation rate is very poor, and the voltage drops significantly as the load increases. The voltage difference between...[Details]
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For DIY (do-it-yourself soldering) friends, when doing the following experiment, you must first solder the power supply (used to provide 5V regulated power supply to the microcontroller) and the seria...[Details]
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On November 14, Qualcomm announced the launch of two connectivity modules, QCC74xM and QCC730M, for IoT applications such as smart homes and smart appliances. These two modules are now available fo...[Details]
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