Adeneo Embedded i.MX53 Скачать руководство пользователя страница 14

 

 

 

This will save the environment variables to the SD card. Restart the board and Android 
will load.

Note:

 The backlight settings have been adjusted to support the SEIKO 4.3” LCD screen. 

They might not be suitable for the 7” screen. If you want to use the 7” display:

Edit and find the following structure:

 static struct platform_pwm_backlight_data mxc_pwm_backlight_data = {
        .pwm_id = 1,
        .max_brightness = 255,
        .dft_brightness = 128,
       /* NOTE - ADENEO: this value is suitable for the SEIKO LCD.
          It needs to be adapted for different panels */
       .pwm_period_ns = 5000000,
 };

 

Set the PWM period: .pwm_period_ns = 

50000,

Rebuild and flash the kernel.

VGA

Use the following commands in U-Boot:

U-Boot> setenv set_display run vga

U-Boot> save

This will save the environment variables to the SD card. Restart the board and Android 
will load.

Note: 

If you need to customize the mode, you will need to edit the “

vga

” environment variable 

and replace “video=mxcdi1fb:GBR24,VGA-XGA” with the desired mode, e.g.

U-Boot> setenv vga 'setenv bootargs ${bootargs} di1_primary 
video=mxcdi1fb:GBR24,1680x1050@60 vga'

The following modes are supported:

1680x1050@60                                                                 

1280x1024@60                                                                 

1024x768@60                                                                  

800x600p@60

HDMI

 

01/29/2012

Adeneo i.MX53 QSB BSP for Android Gingerbread 4.2

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14

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Содержание i.MX53

Страница 1: ...Adeneo i MX53 Quick Start Board BSP for Android Gingerbread v4 2 User Guide and Release Notes 01 29 2012 Adeneo i MX53 QSB BSP for Android Gingerbread 4 2 Page 1 20...

Страница 2: ...ndroid for the i MX53 Quick Start Board Flashing the images on an SD Card Booting the board Calibrating the touchscreen Configuring the display 4 3 SEIKO 24bpp LCD MCIMX28LCD 7 CHUNGWA 16bpp LCD VGA H...

Страница 3: ...ecific support for the QSB Prebuilt binaries see the Flashing section for instructions on how to flash them Standard Android image Standard Android image Inflexion UI for i MX Processors by Mentor Emb...

Страница 4: ...Gingerbread Rebased BSP on Freescale r10 2 release Dual display support 3 3 Rebased BSP on Freescale r9 4 release Improves performance DVFS support User Keys added as Back Home HDMI support 3 2 Added...

Страница 5: ...MX53 platforms Please follow the instructions provided in this document to build Android for the QSB http source android com source index html Application development on Android http developer androi...

Страница 6: ...time USB mass storage device Yes USB HID keyboard and mouse Yes Supports Dell keyboard USB webcam Yes Supports UVC USB webcams Accelerometer Yes Correctly reads the orientation User Keys Yes Mapped t...

Страница 7: ...ume fails when trying to wake up the device while it is suspending Suspend fails in all cases on the Ripley board Workaround use Stay awake in Settings Applications Development Constant CPU load creat...

Страница 8: ...t apply to your Ubuntu version If you have problems installing JDK6 please use the following command sudo add apt repository deb http archive canonical com ubuntu lucid partner instead of the one list...

Страница 9: ...u fix_android_32bit sh Building Android for the i MX53 Quick Start Board The build_android sh script will build the bootloader kernel and Android images in a single step The syntax to use it is the fo...

Страница 10: ...hoice uboot lunch type eng To build just the kernel build_android sh board imx53_qsb build choice kernel lunch type eng To build just the Android root filesystem build_android sh board imx53_qsb build...

Страница 11: ...command from a console on your development machine The kernel logs will show you the correct letter 01 29 2012 Adeneo i MX53 QSB BSP for Android Gingerbread 4 2 Page 11 20...

Страница 12: ...I demo binaries built using the above build scripts flash_prebuilt_android sh dev sdX inflexion These binaries add the Inflexion UI demo which can replace the Android standard Launcher hence the promp...

Страница 13: ...ove the file from the debug shell adb rm data system calibration then reboot Configuring the display The display is configured from the bootloader prompt to access it use the serial console and press...

Страница 14: ...nt panels pwm_period_ns 5000000 Set the PWM period pwm_period_ns 50000 Rebuild and flash the kernel VGA Use the following commands in U Boot U Boot setenv set_display run vga U Boot save This will sav...

Страница 15: ...d by different variables in Android ro DUAL_VIDEO_ From Freescale r10 3 documentation install imx android r10 3 doc i MX_Android_R10 3_User_Guide html There are two ways to play video for dual display...

Страница 16: ...PLAY_CONNECTED 1 This command might take several seconds before it is applied HDMI VGA Use the following commands in U Boot U Boot setenv set_display run hdmi_720p setenv bootargs bootargs video mxcdi...

Страница 17: ...the i MX53 please look at the SABRE Tablet files referenced under the name i MX53 SMD for more information USB mouse Insert a USB mouse camera in the top USB host port USB Keyboard Insert a USB keyboa...

Страница 18: ...ard to a USB host e g your desktop PC On the top left corner you should see a USB logo Drag the top bar down to the bottom of the screen Click on USB connected Choose Turn on USB storage Your host sho...

Страница 19: ...H 26565 REV D or later e g START R DO NOT require this workaround From the Freescale release notes MX53 TO2 0 silicon has issue that causes video quality poor with yellow blocks on the screen when pla...

Страница 20: ...mer adeneo embedded com Additional support non official can also be found on http imxcommunity org More information is available in the SABRE Tablet documentation install imx android r10 3 doc i MX_An...

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