I want to write an evc program to control the opening of a folder browsing window with a specified path. For example, when a certain event is triggered, the program can let wince open the storage card...
vxworks5.5.1 cooperates with windnet framework. windnet provides the framework and source code of ppp, and supports multiple physical lines, such as synchronous and asynchronous serial ports, pppoe, e...
[color=rgb(68, 68, 68)][font=Tahoma,]You can see that there is a small black cursor on the comment line in my program. [/font][/color] [color=rgb(68, 68, 68)][font=Tahoma,]It's very annoying. How can ...
Although LM3S6892 is already well-known, I still see some people in the forum still calling it "Lumen". This should be a name brought over from Luminary before it was acquired by TI. People who are us...
I am writing a key driver now. I have implemented two key drivers, but my problem is that the board does not have many interrupt ports (about 4). I want to write a key driver with about 8, but I must ...
Previously, in the audio driver under WinCE6.0 (in kernel mode), 32B of space was applied for and used directly without mapping or checking embedded pointers. The application writes 32B in, and the dr...
The power consumption of a switching power supply includes fixed losses caused by parasitic resistances such as semiconductor switches, magnetic components, and wiring, as well as switching losses ...[Details]
In recent years, with the increasing maturity of LED technology, LED light sources have been increasingly widely used due to their advantages of using low-voltage power supply, low energy consumpti...[Details]
1. Project Introduction
Beijing Benz-Daimler Chrysler Co., Ltd. is a joint venture between Beijing BAIC Group and Benz-Daimler Chrysler. In October 2005, it started to build a new automobile ...[Details]
High-frequency electrodeless lamp is a high-tech product that integrates electronic technology, vacuum science, power electricity, plasma science, magnetic material science and other disciplines. Elec...[Details]
The so-called constant current source is a power supply with a very stable output current, but this stability is relative, not absolutely unchanging, but its rate of change is so small that it can be ...[Details]
Sensors of all types have evolved greatly over the past few years and are much more accurate and stable than their predecessors. Sometimes, these sensors are not easy to use.
Designers of cond...[Details]
1 Introduction
The development of fieldbus technology has made a big step forward in the process of control systems from closed to open. Open control systems based on fieldbus have begun to enter th...[Details]
Commonly used power management chips for portable products
●Low Dropout Regulators (LDO Linear Regulators)
LDO
VLDO;
●DC/DC Converters based on inductor energy...[Details]
Last week, Microsoft's Windows Phone 8 system was launched with great fanfare and attracted much attention from the industry. However, Nokia, the most staunch supporter of Microsoft's Windows Phone sy...[Details]
1 Introduction
A digital signal processor (DSP) is a microprocessor suitable for implementing various digital signal processing operations. It has the following main structural features: (1) I...[Details]
The MCS-51 microcontroller has two timers/counters
.
When they select the counting mode, a negative transition on the T0 or T1 pin will cause the T0 or T1 counter to count by 1. Therefore...[Details]
Nowadays, short message services are becoming more and more popular. Various telephone manufacturers are competing to design and develop short message terminal phones. In order to cooperate with th...[Details]
In high-frequency system measurement and application, it is often necessary to use multi-channel coherent signals. Generally, we can use devices such as power dividers, phase shifters, amplifier...[Details]
On Semi's NCP3065 is a 1.5A constant current switching regulator with an input voltage range of 3.0V to 40V, a feedback voltage of 235mV, an adjustable operating frequency up to 250kHz, and cy...[Details]
1. 90° phase shift power divider
The 90° phase-shift power divider is the beginning of the signal processing of the receiving circuit. Its performance directly affects the receiving sensitivity an...[Details]
Embedded System
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