Lcd driver engineer recruits LCD driver linux

How to upload files from windows to linux using ssh?

At present, the easiest way to upload files from windows to linux is to use terminal software, and upload local files directly to linux system through the upload function of terminal software, which is convenient and fast. Let me briefly introduce the implementation process, and interested friends can try it:

Coal mine management bureau

If you are a win 10 system, it is very convenient. You can use the scp command that comes with the system to upload local files directly to the linux system. The basic usage mode is "scp local file target Linux host". Open the cmd window, switch to the directory where the file is located, and then run the scp command directly. This process requires a password. After successful verification, the file will be automatically uploaded to the target Linux host, which is very convenient and fast.

putty

This is a very portable and flexible terminal software, free and open source. If you pursue a simple and simple style, you can use this software, which is very good. Upload files from local windows to linux, and directly use putty's own pscp command. Open the cmd window, switch to the putty installation directory, and then use the pscp command to upload the file directly. This process also requires a password. After successful verification, files will be uploaded automatically, and of course linux files will be downloaded to the local windows system.

mobaxterm

This is a powerful terminal software with comprehensive plug-ins. Compared with the relatively simple putty, mobaxterm not only supports remote connections such as ssh and telnet, but also supports remote control such as vnc and rdp. You can upload files from windows to linux directly by using the upload function of the software, as shown below. Click the upload button, and then directly select the uploaded file in the file dialog box. Of course, you can also download the file locally, right-click the file you want to download, and then directly select the storage location.

Of course, in addition to the above three methods or softwares, there are many other softwares or softwares that also support uploading local windows files to linux systems, such as xshell, ftp, samba and so on. As long as you are familiar with the use process, you can quickly master it. There are also related tutorials and materials on the Internet, which are very detailed. You can search if you are interested. I hope the content shared above will be helpful to you, and welcome your comments and comments to supplement it.

Linux input signal out of range?

The reason why Linux system prompts that "input signal is out of range" is not only the refresh frequency, but also the configuration of desktop system.

Solution: Restart the computer and wait for a period of time. When the system starts and the display prompts that "the input signal is out of range", press alt+ctrl+F 1 to enter the Linux command line mode and enter the system as root (or use the su command after logging in as an ordinary user). Enter the desktop configuration directory and use the gtf command:

cd/etc/X 1 1

gtf 102476885

Where 1024 and 768 are the resolutions you want to set and 85 is the refresh frequency you want to set. Enter the command and the system will output the following information:

# 1024 x768 @ 85.00hz(GTF)hsync:68.60 khz； pclk:94.39MHz

modeline 1024 x768 _ 85.0094 . 39 1024 1088 1200 1376768769772807-HSync+Vsync

Back up the xorg.conf file, and then open it with a vi editor.

cpxorg.confxorg.conf.aaa

vixorg.conf

Find the code of SectionMonitor in the file, and copy and paste a whole line of Modeline in the text output by the system after using gtf command above into the code of SectionMonitor. As follows:

Section monitor

Identifier monitor 0

Supplier name monitoring supplier

modelnamelcdpanel 1280 x 1024

HorizSync3 1.5-67.0

50.0-75.0

Optional pms

modeline 1024 x768 _ 85.0094 . 39 1024 1088 1200 1376768769772807-HSync+Vsync

Terminal part

Change the value of VertRefresh line to 50-75.0 (LCD suggests changing it to 60-60), save and exit after modification, and restart the system.

How to configure ddr3 driver when linux is ported to am335x

TI's LCD controller driver is very perfect, and the commonly used places are encapsulated by drivers. Like buttons, we can complete LCD display through DTS configuration.

Next, let's discuss the idea of completing LCD driver with DTS configuration kernel. (1) Preliminary analysis As the chip used by TQ335x is AM335x, we can still refer to the development prospect of am335Linux kernel and driver development engineers.

I have experienced it personally. I used to develop CNC systems, and I have been doing it for seven or eight years. There are x86 products and arm products. There are not many places where x86 linux is relatively developed and driven, but there are many on arm, such as storage, display, usb, various buses, audio and network. In many places, as long as there is customization demand, it will be changed. The threshold of driving is relatively high, and the software needs to know some hardware knowledge, hardware schematic diagram, equipment data manual and working characteristics. Getting started is difficult, but once you get started, you will be as familiar as others. The previous company was linux+qt. I left this year and joined an Android development company. I am still doing Android driver development. It feels almost the same, but the hardware platform has changed and the content of development has not changed. Driving this area, there are fewer people, and the relative treatment will be better. Now I don't know whether it will be eliminated with the growth of age, but the application scope of linux itself is quite wide, and as a successful open source project, it should still be widely used in the future as long as there is social demand. As for individuals, it depends on their own ability and energy!