480x320 lcd

The time sequence of tft LCD is complex. Therefore, the S3C2440 involves many tft LCD registers. You just need to carefully compare the LCD manual to set the corresponding 2440 register. Tft LCD is not difficult, but an error in a small place may lead to abnormal display, and it is very difficult to find the error. Th

Tong qingping, Liu duoren, Xi'an University of Electronic Science and Technology Introduction Based on the ARM920T kernel, the arm 203 microprocessor is developed by Samsung. It has a master frequency of up to MHz and is suitable for information appliance, smart phone, tablet, handheld devices, mobile terminals, and other fields. The integrated LCD controller is universal and can be used with most LCD disp

User asked: With more than 40 inches of LCD TV as a computer monitor, will not good for the eyes? With a wireless mouse keyboard, far enough away. Expert answer: About this, I think the main resolution problem, often like this screen size very large resolution is only 1920*1080, in 40-inch display this resolution I think a lot of people can not accept. If just watch video play games I think it does not matter, as long as the eye hygiene, moderate res

? $size _small=5;//LCD Width $size _big=25;//Liquid Crystal length $distance =10;//Spacing $color _back= "#DDDDDD"; $color _dark= "#CCCCCC"; $color _light= "#000000"; $number = 0; ?> ? echo "echo "For ($nunber =0 $number { $recid = 0; echo "echo "echo "echo "echo "echo "echo "echo "echo "echo "echo "echo "echo "echo "echo "echo "echo "echo "echo "echo "echo "if ($number ==1| | $number ==3) { echo "echo "echo "echo "echo "echo "echo "echo "echo "ech

; long int screensize = 0;/* Open the device */fbfd = open ("/dev/fb0", o_rdwr); IOCTL (fbfd, fbioget_fscreeninfo, finfo); IOCTL (fbfd, fbioget_fscreeninfo, vimnfo); screensize = vimnfo. xres * vimnifo. yres * vimnfo. bit_per_pixel/8; FBP = (char *) MMAP (0, screensize, prot_read | prot_write, map_shared, fbfd, 0 ); ...... } Write the frame buffer driver The frame buffer device is a character device. It is designed to establish an automatic transmission channel between a specified memory and

LCD program steps: 1. Assign a Fb_info 2. Set 3. Hardware-related Operations 4. Register Register_framebuffer 5. Entry function 6. Export function#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static int S3c_lcdfb_setcolreg (unsigned int regno, unsigned int red,unsigned int green, unsigned int blue,unsigned int transp, struct fb_

Document directory Basic Principles of LCD The basic principle of LCD liquid crystal display is short for liquid crystal displa Y. The structure of LCD is in two parallel glass Liquid Crystals are placed in the middle. There are many small vertical and horizontal wires in the middle of the two glass cables, which are controlled by power or not. The rod-shaped

How to Write Linux LCD Driver) Author: Liu Peng Date: 2008-12-27This article analyzes the main data structure of the frame buffer device driver, and introduces the development of the LCD driver program. Basic Principles Through framebuffer, the application uses MMAP to map the video memory to the virtual address space of the application. The data to be displayed can be displayed on the screen after being

New and old LCD problems with smartarm50Because smartarm50 experienced a liquid crystal replacement, the early LCD module was a TFT-6862, and later the LCD module was a TFT-4238, the timing of the two LCD modules was significantly different, and even the clock polarity was different. The linux-2.6.27.8-smartarm3250_V1.

LCD is one of the most commonly used display devices in single chip microcomputer systems.ProgramThe database is tested on the msp430f169 and msp1430f149 single-chip microcomputer and can be used with confidence. LCD uses the 12864 liquid crystal of the ocmj4x8c model and the control liquid crystal uses the parallel method, the three control ports are p3.0, p3.1, and p3.2, and the data uses the P5 data IO p

In the daily enjoyment of the LCD that unusual high-grade display effect at the same time, do not forget to maintain this extremely important link. Only if the LCD is well maintained, it can serve the customers for a long time without fault. It should be clear that the expensive LCD, as long as the following some simple maintenance steps, you can serve a long tim

Transferred from: http://bbs.meizu.cn/viewthread.php?tid=3058847page=1My topic should be a bit longer. But the general section is as follows:1.LCD ram;--> This item is now over2.OCA Attachment Method;==> This temporarily cannot give the update time, but will be as soon as possible.3. Jieduan a machine so-called semi-anti-wear screen;-->12/23 11:51 has been updated. 4. The use of Meizu for such a long period of experience and advice;-------------------

LCD panel is the LCD TV screen, its output, quality and market environment, and many other factors are related to the quality of the LCD display itself, price and market trend, because a liquid crystal display its cost of about 80% are concentrated in the panel. The quality of LCD panel, technology is also related to t

LCD hardware System1.LCD LCD ScreenLiquid crystals belong to an organic compound, the molecular shape of a long rod, under the action of different currents, the molecules will have a regular rotation, so that the light produced a certain control to form a pixel, and many pixels right can form a complete image.The LCD i

If our system is to use a GUI (graphical interface), then the LCD device driver should be written into the Frambuffer interface, rather than just write the operating layer of the LCD controller interface as before.What is a frambuffer device?The Frambuffer device layer is an abstraction of an image device that represents the frame cache of the video hardware, allowing the application to access the hardware

. Second, the daily maintenance of LCD TV Avoid burnout inside the screen Remember, CRT TVs can burn out for long periods of time, as well as for LCD TVs. So be sure to keep in mind that if you do not use, you must turn off the LCD TV, or long time, will lead to internal burnout or aging. This damage, once it happens, is permanent and cannot be undone. So be s

The LCD has the following differences from the CRT monitor. Note One: Refresh frequency The refresh rate is the vertical scan frequency (field frequency) of the monitor, which refers to the number of times the electron gun is scanned across the screen per second, in Hz (Hertz). For CRT monitors, the image displayed on a CRT monitor is made up of a number of fluorescent dots, each fluorescence point shines under the impact of the electron beam,

To achieve human-computer interaction, the display device is indispensable. Previously, I talked about how to use a single-chip microcomputer to control the display of digital tubes. This article focuses on how to control the LCD display and adds the timer function to the LCD screen. The liquid crystal used here is lcd1602, which can display 16x02 characters (16 columns and 2 rows) at the same time ). The c

LCD driver under Linux will automatically turn off the screen after 10 minutes, we can modify the code so that it does not automatically turn off the screenThere is a drivers/char/vt.c file in which there is a variable (blankinterval) that can be set to modify the auto-off time, or it can be returned directly at the beginning of the function (blank_screen_t) , so that the screen will never be turned off.When the L