beagleboard lcd

In the original code, Pclk is set to 8 m, but for 320*480 LCD needs to be increased to about 10 m.Therefore, you can directly modify the two parts in the bootloader and kernel.Lcdc_clock_init (8000000 );Pinfo- gt; clk_rate = 8000000; An error occurred while starting the download. The log is displayed as follows:Can't set mdp lcdc pixel clock to rate 10000000 Ret = clk_set_rate (pixel_mdp_clk, mfd-> fbi-> var. pixclock );If (ret ){Pr_err ("% s: Can't s

Fault symptom:Commercial 42 'professional LCD LD4210MwA comes standard with a remote control, and the display OSD menu can only be accessed through the remote control, there is no solid menu buttons on the display body.During actual use, you can use the remote control to call the OSD menu-detailed settings 2 (OSD Information)-remote control mode settings to set the remote control to locked. After the lock is set, the remote control does not respon

1. One hand put the upper edge of the machine, pay attention not to press to the LCD screen. The other hand holds the bracket while pressing down on the base to prevent the machine from dumping when it adjusts. 2. The hand on the border pushes backwards, you can adjust the screen and tilt the angle about 18 degrees. 3. The hand on the border pulls forward, you can adjust the screen forward, the angle is about 2-3 degrees.

1. Press the "more" button on the TV remote control, select "Project" and click on the touchpad. This article uses the Intelligent Touch remote control to demonstrate the operation method, please click here to see how the F8000 Series LCD TV uses the Intelligent Touch remote control.2. Select "Smart Feature" and click on the touch panel.3. Select "Remove Viewing History" and click Touch Pad.4. Select "Photos, videos and music" and click on the touchpa

Using the digital audio output (optical fiber) interface to connect the need to use digital fiber audio cable, the appearance of the following image refer to:through the "audio output" interface to connect the need to use 1 minutes 2 audio lines, the appearance of the following figure refer to:here, for example, to connect Samsung Home Theater ht-f9750w, demonstrate how to set up sound:1. Connect the prepared audio lines as shown in the following illustration. (Note: Select one of the audio line

If you want to open BD Wise , follow these steps: 1. Press the "more" button on the TV remote control, select "Project" and click on the touchpad. This article uses the Intelligent Touch remote control to demonstrate the operation method, please click here to see how the F8000 Series LCD TV uses the Intelligent Touch remote control.2. Select "System" and click Touch Pad.3. Select "General" and click Touch Pad.4. Select "BD Wise" and click on the to

If you want to set the Samsung C330 series LCD display timer shutdown function, please follow the following procedures:1. Touch the "menu" key position, the screen will appear "button Guide Menu", the following figure marked the name of each touch key: 2. Touch "Menu" button again will appear "function Menu", then choose "Set and Reset", press "toggle/confirm" key. 3. Select "Shutdown Timer" and press "Toggle/Confirm" button. 4. Select "On"

I haven't written a computer repair experience for a long time, think about it, big things, small things are quick to make me not like people, hehe! Well, today in the shop finally idle down to write a monitor repair feeling, just repaired a benqfp71e LCD screen boot black, the failure of BenQ machine has high pressure board part of the common problem, This should be recognized, the fault is mostly turned on the black screen, or directly black screen,

1: Equipment A:TCL L19N6 LCD TV Machine (the model used in this test) b:v450a 2: Need material HDMI Cable (Note: This line must be of good quality, do not just get a bargain, may not use it well or not!) believe that a penny of the price is better. ) Connection process A: First, the HDMI interface to connect to the computer, preferably in the state of shutdown, do not turn off the status of the machine, but the television is best to close the fi

706-LCD Display Time limit:3.000 seconds Http://uva.onlinejudge.org/index.php?option=com_onlinejudgeItemid=8category=24page=show_problem problem=647 http://poj.org/problem?id=1102 A friend of you has just bought a new computer. Until now, the most powerful computer he ever used has been a pocket calculator. Now, looking in his new computer, who is a bit disappointed, and because he liked the lc-display of his. So I decide to write a program of thi

New purchase of 17-inch LCD display, the original CRT display replacement, post normal, but into the system desktop when the black screen, restart the problem is still there. This problem occurs because the display's refresh frequency or resolution setting is beyond the LCD's support, as shown in the following solution. 1. Start the computer normally, press "F8" key when starting Windows, choose Safe Mode to start the computer. 2. Right-click on th

When the LCD is used for a period of time, there is a lack of color, the display effect is very poor. The main reasons for the lack of color display are the following three kinds: 1. The transistor in the video output circuit is open to a certain level, resulting in a lack of color on the monitor. 2. The video output to the cathode tube, the pin has to be off welding or bad contact. 3. CRT cathode aging. If the monitor is not used for a lo

1, check the display and video card connection is loose Poor connectivity between the hardware resulting in screen flowers, which is a more common flower screen. 2, check the screen resolution or refresh rate is set too high The resolution of the LCD display exceeds the optimal resolution of the CRT display, the computer will also appear the phenomenon of flower screen, so, in the adjustment of resolution, we adjust the appropriate. 3, check wheth

point of the motherboard voltage, to pay attention to the voltage (4.8V), reset voltage (high or low level, according to different models), MCU voltage. If a power supply short circuit, to carefully find short circuit position, there will be PCB board copper foil may be short circuit (2) Find out whether the contact between the MCU and the motherboard is good (3) Check whether the motherboard chip and MCU work, can be used to measure whether the crystal oscillator vibration (4) Replace the M

CCFL backlight screen Advantages and disadvantages CCFL full name cold cathode fluorescent lamp (cold cathode fluorescent lamp), with high power, high brightness, low energy consumption and other advantages, widely used in display, lighting and other fields, filled with inert gas (including part of the mercury vapor), the inner wall has phosphor layer, The shape looks like a fluorescent tube, a bit like a neon sign in the city. Because the CCFL tube has a small tube, simple structure, lamp surfa

1. The transplant process selected ldd6410 LCD driver for reference to the ok6410 Development Board, because the ok6410 2.28 kernel has a relevant driver, it will be removed after the new driver is migrated.2. Porting processThe main idea is to add drivers to the kernel, add the Samsung directory under/driver/video/, extract the driver-related source code from the ldd6410, and copy the source code to Samsung.Modify the makefile file under/driver/video

emission. The surface acoustic wave performance is stable, easy to analyze, and in the shear wave transmission process has very sharp frequency characteristics, in recent years in nondestructive testing, imaging and the direction of the application of the development of a rapid, surface acoustic wave-related theoretical research, semiconductor materials, acoustic guidance materials, detection technology and other technologies have been quite mature. The touchscreen part of the surface acoustic

First case:After entering kernel or Android, if the LCM image shows an exception, you can use the following steps to determine the level at which the problem occurs.Step1: Use DMMs to determine if there is a problem with the data that is being brushed into the LCM. If there is no problem with the picture obtained by DMMs, the problem can be basically located in LCM Driver/module, and timing.Step2: If there is a problem with the data obtained in Step1 DMMs, you need to crawl framebuffer data to f

interface:Oem_panel_select: Mainly based on the ADC to determine the LCD compatibilityPM8X41_ENABLE_MPP_AS_ADC_FOR_MPP2 (0x01);Lcm_type =GET_VENDOR_FROM_ADC (mpp_2_chan_id);if (Lcm_type_hs==lcm_type){panel_id =ili9806e_fwvga_video_panel;//chenhaibing Add}ElseIf (Lcm_type_ts==lcm_type){PANEL_ID =hx8379c_fwvga_video_panel;}Else{PANEL_ID =unknown_panel;RET =false;Return ret;}OEM_PANEL_ON is responsible for putting. h-related macros and instructions, tim

The basic decoding experiment based on STM32F11. Basic program is stored in file form2. Program files stored in SD card3, the explanation results are displayed on the LCD screenMain function Sectionint main (void){U16 I,j;Delay_init (72);//Delay initializationInit_io ();Glcd_init ();//Initialize LCDback_color=0x001f;Lcd_showstring (30,10, "Mini STM32 SD Card TEST");Lcd_showstring (30,30,__date__);Lcd_showstring (150,30,__time__);Ffext_mount (0, FS);Ff