I installed a software in the Ubuntu Software Center but I can't find where it is installed. I can see in the installed software that it has been installed, but I can't find where it is installed. I'm...
[font=Arial][size=14px][color=#ff0000][size=24px][b]OSAL[/b][/size][/color] is mainly a mechanism, a mechanism for allocating resources to tasks, thus forming a simple multi-tasking operating system. ...
[color=#333333][font=-apple-system-font, BlinkMacSystemFont, "][size=3][size=17px][align=left]This is a power supply with a wide input voltage of 120-277V 60HZ, an output of 48V, 273mA, and a Buck top...
As the title says, the author is using an STM32F407 board and uses DMA to receive data. The data received by DMA is stored in a cache array, and then printf is used to print out the data stored in the...
I am testing the USB function of f28075. The circuit has been connected, but after plugging in the USB interface, the PC cannot read the USB driver and cannot recognize it. Is there a special USB driv...
Abstract: Based on the MPEG-4 protocol framework, the MPEG-4 video compression coding algorithm is studied, especially the I-VOP, P-VOP, and B-VOP coding algorithms. A relatively simple implementation...
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
In public places such as schools, government agencies, factories and mines, as well as public corridors in residential areas, the phenomenon of long-burning lights is very common, which causes a h...[Details]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
In recent years, with the rapid development of the information industry, dot matrix LED display screens have been widely used in various advertising and information display systems such as the fina...[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]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
Today, the value of electronic components in cars accounts for 15-20% of the total vehicle. In the future, this proportion may be as high as 30-40% as more safety electronics, fuel consumption and ...[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]
Corelink Semiconductor has launched the CL1100-based 5-7W E27 LED lighting driver system solution DB2. This driver module meets the requirements of small size (L×W×H=5.1cm×2.1cm×1.8cm), low standby...[Details]
Since the late 1990s, with the demand for higher system efficiency and lower power consumption, the technological update of telecommunications and data communication equipment has promoted the deve...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]