Android on OMAP3EVM information page

Introduction¶

This page collects hardware-related notes about Android on OMAP3EVM. It also contains information regarding features, limitations and other board-specific topics relevant to Android

You can get information regarding OMAP3EVM here:

• Getting started: http://www.mistralsolutions.com/products/omap_3evm.php
• Detailed information: http://www.mistralsolutions.com/assets/downloads/3530.php

 

Board Revisions Tested¶

• Generation I.CPU board: rev. B; Main board: rev. D; MDC board: rev. B
• Generation II.CPU board: rev. C; Main board: rev. G; no MDC required for this generation of Main board

Bootloader information¶

We recommend to use uboot from TI PSP SDK release 02.01.02.09.

You can get pre-built stuff here: http://rowboat.googlecode.com/files/u-boot.evm.bin

Booting Android sample¶

TBD

Board features/devices supported:¶

• Serial
• NAND flash
• MMC
• Ethernet
• keypad
• LCD
• Touchscreen
• Audio
• USB OTG port (Host mode)

On-board keys mapping in Android¶

The onboard key are mapped in the following way (from the upper left corner to the lower right by the rows):

Menu Back Up Home ExplorerVolume Up Left Center Right SearchVolume DownSoft LeftDown Soft RightPower

Using Multimedia Daughter Card (MDC) in Android (Relevant for Generation I EVMs)¶

TBD

Using DVI output instead of on-board LCD¶

If you need external display you need to enable additional kernel parameters:

• omapdss.def_disp=dvi - this specifies to use DVI output instead on-board screen
• omapfb.mode=dvi:720x480MR-16@60 - this specifies the resolution for external display

or (in older versions of u-Boot)

• omap-dss.def_disp=dvi - this specifies to use DVI output instead on-board screen
• omapfb.video_mode=720x480MR-16@60 - this specifies the resolution for external display

Here 720x480MR-16@60 is example value which means:

• resolution - 720x480
• M - always present
• R - reduced blinking
• 16 - 16 bits = 65,536 colours
• @60 - 60 Hz

For more detailed info see modedb Documentation

 

Using TV output (S-Video) instead of on-board LCD¶

It is similar to usage of DVI output. If you want to use S-Video - make sure the cable is connected to EVM S-Video Output connector (not to confuse with Input!!!).

Pass following parameters in the command line:

• omapdss.def_disp="tv"
• omapfb.mode="tv:ntsc"

or (in older versions of u-Boot)

• omap-dss.def_disp="tv"
• omapfb.video_mode="tv:ntsc" or "tv:pal"

 

Known issues, limitations¶

RTC does not work on Rev D board, you can find more details here: http://e2e.ti.com/forums/t/9023.aspx. Latest EVM does not have this limitation.