Dear experts, I read this sentence in the uC/os--ii book, but I don't know what it means. "The longest time to disable interrupts is no longer than the kernel's own interrupt time."...
[i=s] This post was last edited by paulhyde on 2014-9-15 09:05 [/i] :victory: 8051 Series Microcontroller C Programming Complete Manual [[i] This post was last edited by open82977352 on 2010-2-2 19:51...
2. Capacitor detection method and experience?? 1? Fixed capacitor detection?? A? Detection of small capacitors below 10pF?? Because the capacity of fixed capacitors below 10pF is too small, using a mu...
First, let me describe my project: I want to send data frames through Ethernet, but not through the protocol layer. The network card driver on the board has been written. I want to use the existing dr...
I. Introduction
In the field of power conversion, isolated converters (forward, flyback, and double-ended) with low output DC voltage all use MOSFET as the rectifier device. Since these devi...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
Capacitors
are basic components in various electronic devices and are widely used for bypassing, coupling,
filtering
, tuning, etc. in electronic circuits. However, to use capacitors,...[Details]
In 2012, more than half of the cars in the European, Japanese and American car markets will be equipped with color displays, navigation systems, satellite communications and other in-vehicle infota...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guangzho...[Details]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
1 Battery technology determines the fate of energy vehicles
Regardless of whether new energy vehicles are hybrid or pure electric vehicles, they cannot do without the core technology of batter...[Details]
Current
measurement:
Magnetic balance Hall current
sensor
is used
. The sensor can measure AC from DC to 100kHz.
In automatic measurement and control systems, it is often nec...[Details]
introduction
The Steyr diesel engine produced by Weifang Diesel Engine Factory has huge power and is one of the main power models widely used in China's heavy machinery and large trucks. In ...[Details]
In the development direction of the automotive industry, electric vehicles (EV) and hybrid electric vehicles (HEV) are becoming an obvious trend. From a technical point of view, hybrid power is mor...[Details]
The rapid development of the automobile industry has promoted the progress of global machinery, energy and other industries, as well as the development of economy, transportation and other aspects,...[Details]
(1) Open circuit voltage of the battery
(2) Internal resistance of the battery
(3) Battery operating voltage
(4) Charging voltage
Charging voltage refers to the voltage applied ...[Details]
FPGA/CPLD
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