, including two or five linesRs_232Serial Port and One line 3Rs_232Serial Port; oneRs_timeoutTotal interfaces;OneCanBus interface,2.0Standard;StandaloneSupported10InchLVDSLCD screen; OneVGAInterface, supported800x600Resolution;Motherboard+Core board structure
Linux
2.6.36
. 2 (provide all kernel source code)Wince 6.0 R3 (Open BSP source code)Android 2.2(Linux Kernel-
2.6.29
)
Ok2440-III
S
3c
2440(Clock speed:400 MHz/533
mainly consider the influence of Transmission Line effects on signal quality and timing (timing. Such as continuous and matching of Characteristic Impedance, selection of end connection mode, selection of topology mode, line length and spacing, and control of clock (or strobe) signal skew.If the device is fixed, the general anti-interference method is to increase the gap or add ground guard traces.
18. Wiring of LVDS SignalsQ: In principle,
(note the difference between the DE mode and the Sync Mode ):
Among them, backporch and syncwidth should be allocated larger as much as possible, because it determines the starting position of the effective region, frontporch can assign a small dot (this method can be used in screen parameter drive de screen in sync mode. Note that backporch + syncwidth + frontporch is equal to the blingking value in de mode ).
I once encountered a strange phenomenon when debugging a DPI interface LCM. The RGB
used. As to why such arrangements are made, we will explain them in detail in subsequent articles.
Which video interfaces can output 4K resolution?
Currently can output 4K resolution of the interface only HDMI and DisplayPort, where the HDMI interface to the output refresh rate of 4K resolution, you must use the support of HDMI 1.4a or higher standards of products, can output 4K resolution specifications for the highest 4096*2160@24 Hz or the 384
gaming displays on the market. Is it worthy of its own high price?
Hardware design
The XB280HK features a slim, shiny screen border that looks very sophisticated. Although the plastic material borders may produce reflective light in very bright rooms, the problem is not large because of the narrow borders. On the back of the display, Acer replaced the material with frosted plastic, which, although ordinary, felt durable. Overall, XB280HK's work is worth 800 of dollars in price.
System (64-bit)
Wireless network: 802.11b/g/n wireless network, Bluetooth 4.0
Interface: 2 USB 3.0 connectors, 1 USB 2.0 connectors, 1 HDMI output, DisplayPort interface, card reader, headphone/Microphone jack
Weight: 2.5 kg
Price: from USD 999 (RMB 6128)
Exterior design
There is no doubt that the overall design of the Acer Aspire R7 is unique in that it places a 15.6-inch screen on a floating shaft. The design seems to draw on some desktop mac
Linux Kernel version:3.0.35Platform:freescale dsa2lRead the EDID information of the VGA screen via i²c (mainly resolution), parse and feed the CH7036 chip (LVDS to VGA,DVI,HDMI Chip), provide the file node to user Space.Code flowBecause the EDID protocol specifies that the read slave address of I²c is 0x50, the device registration code is added first:I2c.h#define I2c_board_info (Dev_type, dev_addr) \ = dev_type,. Addr = (DEV_ADDR)Board-mx6q_dsa2l.c
caused by the flower screen: from the logo began to shake, to the desktop after the screen background intermittent horizontal bright line flashing.
Four, LVDS chip caused by the flower screen: out of XP when the screen has a color line jitter, and with XP jitter, the icon does not shake, desktop background pattern is also spent, and has a pattern profile (screen background display is not normal).
Five, the graphics card driver error caused by the f
from the PCI ROM bar. The BIOS of this video card contains data and command tables. The data table defines the number and type of connectors similar to the graphics card, and how these connector are mapped to Encoder,gpio registers, the bit fields used by the DDC and other i²c-buses, the LVDS screen information for notebooks, The limitations of the PLL engine, and so on. The command table is used to initialize the hardware (it should normally be done
checkerboard stereoscopic mode.
5. Solved the OpenGL driver crash problem when running Bibble 5.
6. corrected the interaction between DisplayPort and power management suspension/recovery events.
7. Fixed occasional X driver memory management performance issues when running the merging Manager
8. Fixed the Bug of VT switching or mode switching when Compiz was used. This Bug can cause desktop crash (for example, white screen) or worse X server cras
Both VGA and DVI are video transmission lines. The former is the traditional analog transmission, the latter species is more, there is only the transmission of digital or analog or digital mode is transmitted, in short, the latter video signal transmission quality is higher than the former, and transmission speed faster. Many displays on the market now use the DVI interface (including HDMI, HDTV, and DisplayPort, etc.)Interfaces are very easy to diffe
of graphics, GTX 1060 3 GB is a low-end 6 GB edition with relatively more affordable prices. It will be a mainstream mid-range game graphics card for gaming players in the future, based on the new Pascal architecture, the basic clock speed of 1280 stream processors is 1518 MHz, and the acceleration speed is 1735 MHz. At the same time, 1.4 W power consumption and 6-pin power supply are maintained. The output interface is a DisplayPort, an HDMI 2.0b, a
Bandwidth limitations, poor image quality, almost eliminated
DVI interface mainly transmits digital signal
S-video interface
HDMI interface Hi difinition multimedia Interface High Definition Multimedia interface
Digital video and audio interface technology
Maximum Transmission 5Gbps
Large transmission bandwidth, high output resolution, easy connection, digital signal, low attenuation, suitable for HD video output
, rendering and so on. This scope only includes the Wireless Link establishment and call establishment process.
HDCP
HDCP full name high-bandwidth Digital content Protection (HDCP), mainly for the protection of high-definition video content copyright protection, widely used Bluetooth CD-ROM, video card, display and so on. HDCP standard for video content transmission media have different specifications, covering Hdmi/dvi/hdbaset, DisplayPort
, as well as the end user.
Bluetooth
A Short Range wireless technology. The major audio-related Bluetooth profiles and Bluetooth protocols is described at these Wikipedia articles:
A2DP for Music
SCO for telephony
DisplayPort
Digital display interface by VESA.
Hdmi
High-definition Multimedia Interface, an Interface for transferring audio and video data. For mobile devices, either a MICRO-HDMI (type D) or
Add button
void QTableWidget::setCellWidget ( int row, int column, QWidget * widget )
Widgets can be custom buttons.
Class mypushbutton: Public qpushbutton {q_objectpublic: explicit mypushbutton (int I, Int J, int flag );~ Mypushbutton (); void mysettext (); // port information for I}
In the mysettext () function:Setstylesheet ("background-color: RGB (255,100, 0);"); // orange settooltip (TR ("port unauthorized ")); // The configured MAC address and acquisition card do not match settext (TR ("po
What are the differences between VGA, DVI, RS232, UART, SCSI, SATA, and other interfaces?Both VGA and DVI are video transmission lines. The former is a traditional analog transmission, and the latter has many types, which only transmits numbers or analog or digital models. In short, the latter's video signal transmission quality is higher than the former, and the transmission speed is faster. At present, many monitors on the market use DVI interfaces (including HDMI, HDTV, And the
The NVIDIA 337.12 beta driver Linux support version was recently released. The following GPU support is added: geForce 830 M, GeForce 840 M, GeForce 845 M, GeForce GTX 850 M, GeForce GTX 860 M, GeForce GTX 870 M, GeForce GTX 880 M, GeForce GT 705, GeForce GT 720, there are also some new features and fixes.
One problem that causes OpenGL program to crash is solved. NVIDIA settings have been updated to support DisplayPort 1.2 display, and the NVIDIA set
fusion device of 800x120=318.72mhz Large vision electron the maximum frequency of input pixel signal can be 330MHz, plus the cost of line-field blanking, 3328x800-120hz signal can be easily supported. Since 330MHz is the maximum pixel rate supported by a double-stranded DVI or DisplayPort of the video card, the active stereo fusion resolution of the single-port input multichannel output supported by the large-scale electronic fusion device can be obt
control first. Compared with HDMI, its transmission line is cat5e/6 type, which is cheap and has a maximum transmission distance of 100 meters. More universal is that its interface is universal RJ-45 head (twisted pair head), capable of delivering HD videos, 3D, and up to 2 k x 4 K (4096x2160).
For specific specifications, see Figure 1:
Figure 1 Comparison of technical specifications of HDMI, diiva, displayport, and hdbaset
It is not hard
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