DART-SD410 Android LL 1 1: Difference between revisions
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Revision as of 16:24, 19 January 2016
Introduction
This WIKI describes how to build and deploy Android Lollipop Lollipop-5-1-1 on the DART-SD410. It is based on Qualcomm Android-LL-5.1.1.
Overview
The objective of this document is to guide DART-SD410 Android developers to obtain Android Lollipop sources, setting up host environment, compilation and deployment.
This document contains instructions for:
- Hardware and software requirements.
- Setup the hardware.
- Setup the toolchain.
- Download & build the sources.
- Install the binaries on the DART-SD410 SOM.
Document Reference
This release is based on Qualcomm APQ8016_410C_LA.BR.1.2.4-01810-8x16.0_5.1.1_Lollipop_P2 release. Please refer to Qualcomm Developer Network before you start building.
Supported hardware and features
| Feature | Description |
|---|---|
| SOM support | DART-SD410 |
| Carrier Board support | VAR-DT410CustomBoard |
| CPU | Qualcomm - Snapdragon 410 |
| Resque Image | Resque Images set can be downloaded from FTP |
| eMMC | up to 16GB |
| DDR size support configuration | Up to 2G LPDDR3 |
| SD-Card | + |
| Wired Network | 10/100 Mbps Ethernet |
| Wireless Network | 802.11abg AP, & Wi-Fi |
| Bluetooth | + |
| SPI | + |
| I2C | + |
| USB OTG | Host and Device |
| Uarts | x2 |
| RTC | + |
| Display | HDMI: 1080P (On board DSI-to-HSMI bridge, 800x480 resolution) LVDS (On board DSI-to-LVDS bridge, 800x480 resolution) |
| Audio | Line In & Line out Mono Speaker Audio over HDMI |
| Camera | IMX135 camera sensor. Board can be ordered separately at : sales@variscite.com |
Hardware Requirements
DART-SD410 evaluation kit.
Please refer to Host requirements installation.
Obtain Variscite's BSP
Please download Android Board Support Package file from Variscite's FTP site.
Contact Variscite support for FTP credentials.
Unpack Variscite's Android Release Package
$ mkdir ~/dart-sd410 $ cd ~/dart-sd410 $ unzip ~/Downloads/variscite_bsp_vla.br_.1.2.4-01810-8x16.0-3.zip $ cd source/
Download and Build Android Images
The following commands will download the full Android release from different Git repositories and build the Android images. It may take a very long time depending on Internel connection, Build machine, and remote servers. The process may fail fetching the repositories, in this case it can be started again.
$ chmod +x DB410c_build.sh The file DB410c_build.sh can be adited and parameter $BUILD_MACHINE changed to follow the build machine. The best setting is number of threads of the CPU minus 2. $ ./DB410c_build.sh The build system will ask for credentials for repo initialization.
Build Specific Android Image
Usually the changes are done only to a kernel, or bootloader, in this case there is no need to build the whole system and a specific image can be built. To accomplish it run:
$ ./build.sh msm8916_64 --image "image to build" "image to build" can be bootimg/sysimg/usrimg
To build the whole Android tree without downloading it again use:
$ ./build.sh msm8916_64
Flashing newly built images
The build process creates an out directory and puts all images in the following directory:
/out/target/product/msm8916_64/
The following image files are created:
emmc_appsboot.mbn - little kernel (uboot)
boot.img - kernel and dtb files
system.img - system folder
The images can be flashed one by one via fastboot.
In order to enter fastboot mode cycle the power or press Reset key with Back key pressed.
To flash the whole system
$ cd /out/target/product/msm8916_64/ $ sudo fastboot flash aboot emmc_appsboot.mbn $ sudo fastboot flash persist persist.img $ sudo fastboot flash userdata userdata.img $ sudo fastboot flash system system.img $ sudo fastboot flash recovery recovery.img $ sudo fastboot flash boot boot.img
To flash kernel and dtbs
Sometimes the changes are done only to the android kernel, in this case there is no need to flash the whole system.
The kernel and dtb files are located in boot.img file.
Flashing it is enough
$ cd /out/target/product/msm8916_64/ $ sudo fastboot flash boot boot.img
To flash little kernel
Sometimes the changes are done only to the bootloader, in this case there is no need to flash the whole system.
The little kernel is located in emmc_appsboot.mbn file.
Flashing it is enough
$ cd /out/target/product/msm8916_64/ $ sudo fastboot flash aboot emmc_appsboot.mbn