After installing the driver on the development board, it cannot be uninstalled. After executing rmmod my_bdri.ko, it prompts: rmmod: chdir(2.6.29.4-FriendlyARM): No such file or directory. Execute lsm...
:loveliness:
First use two chips to expand 16 outputs, if it is not enough, you can add more
:loveliness:Is it necessary to translate the USI initialization generated by grace?/** ======== USI_init ==...
When doing C++ programming, you often need to use cameras to collect information. At this time, you often need to get the system device driver. How is this done? What is the device driver number and h...
ModusToolbox software development environment is a set of multi -platform development tools and includes a complete firmware library hosted on GitHub. It provides an immersive development experience f...
As the title says, I am a beginner, but the company's new project is to do an outsourcing, and this outsourcing is running on a mobile platform, so I want to ask if there are any relevant reference do...
The system implements a MicroBlaze soft-core processor through the general logic of FPGA to manage each module of the system and schedule tasks. The video acquisition board, DDR2 memory chip, HDMI dis...
1. Introduction
Since the 1980s, with the continuous development of automotive electronic technology, there are more and more electronic control units in automobiles, such as electronic fuel i...[Details]
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[Details]
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]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[Details]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[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
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[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]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
Abstract: The output of high-range acceleration sensor is less than 10 mV under the excitation of small signal. The noise of traditional test system may cover such small voltage signal, so that hig...[Details]
Introduction
In industrial control, speed measurement is often required. Generally, a contact tachometer is used. This tachometer must be placed against the center of the shaft to measure. It...[Details]
Currently, each country is developing its own USB interface
charging specifications
, which leads to a major problem that a USB interface
charging
device manufactured in one country...[Details]
0 Introduction
There are many types of sensors, and the working principles, measurement targets and measurement environments of different types of sensors vary greatly. The corresponding detection s...[Details]
Abstract: In order to realize wireless automatic alarm and monitoring of major safety places, based on the basic principle of pyroelectric infrared sensing, a detector for receiving infrared radia...[Details]
Embedded System
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