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Host: Fedora13
Target machine: s3c2440
Cross compiler: arm-linux-gcc-3.4.1
Cross compiler path: /usr/local/arm/3.4.1
Kernel version to be ported: linux-2.6.35.3
File system type: yaffs2
...[Details]
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I have been using a lot of NTC thermistors recently. They have good temperature measurement accuracy and are cheap. The principle is that the resistance of the thermistor is different under different...[Details]
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At present, most refrigeration equipment is driven by electricity. Traditional refrigeration equipment not only consumes a lot of electricity, but also pollutes the environment because of the use of r...[Details]
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Project Overview The total amount of proven vanadium ore resources in Danfeng County is about 17 million tons, with an average grade of 1.03%. At present, Haosheng Mining Company has built a productio...[Details]
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The relay characteristics of the relay are shown in Figure 2 Among them, the horizontal axis Ia is the pull-in current; Ir is the release current; Iw is the working current; Ik is the hold...[Details]
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This document is a summary of my experience in making a low-power project with sleep + RTC wakeup. Please point out any discrepancies. STM32L provides 5 low-power modes: low-power run mode, sleep...[Details]
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Wang Xuehong's VIA Group (2388) invested in LED lighting driver IC company Guangpeng through IC distributor Quanta (8068), and its entry into the LED lighting industry has attracted the attention o...[Details]
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On November 8, 2022, WPG Holdings, a leading semiconductor component distributor dedicated to the Asia-Pacific market, announced that its subsidiary WPI has launched a 100W bidirectional charging...[Details]
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#include reg52.h
#define uchar unsigned char
#define uint unsigned int
#define LINE P0 //define line IO port, i.e. 74HC154 control terminal
#define shudu 20 //word moving speed
sbit DATA=P1...[Details]
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A switching power supply uses electronic switching devices (such as transistors, field effect transistors, thyristors, etc.) to control the circuit so that the electronic switching devices are cons...[Details]
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This paper proposes a new method based on the mathematical model of the light intensity distribution of the curved LED array. On the basis of the derivation of the mathematical model of the li...[Details]
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As smart grid technology develops by leaps and bounds, the power sector has higher and higher requirements for the distributed application of fault recording devices, and the requirements for recordin...[Details]
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The ultrasonic receiving circuit composed of operational amplifiers is composed of integrated operational amplifiers A., A:, A. R. c is the filter network, and diode D.?CR is the detection network. ...[Details]
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Due to various objective and subjective reasons, errors are bound to exist in any measurement process. According to the nature and causes of measurement errors, measurement errors are divided into t...[Details]
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The hydraulic servo control system is a control method that uses hydraulic technology to achieve high precision, high speed, and high stability. It is widely used in industrial automation, aerospac...[Details]