Arrow electronics Dragonboard 410c User manual

Linux User Guide

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Content

1Linux on the DragonBoard 410c ........................................................................................................................................4

1.1 Known limitations ....................................................................................................................................................4

1.2 Boot-phase status indicators....................................................................................................................................4

2Installing Linux ...................................................................................................................................................................5

2.1 Installing from SD-card.............................................................................................................................................5

2.2 Installing from Host-pc.............................................................................................................................................8

3Recovering your DragonBoard with the rescue image ....................................................................................................11

3.1 Installation overview..............................................................................................................................................11

3.2 Step1: Download the rescue image from the 96Boards website...........................................................................11

3.3 Step2: Copy the rescue image onto an SD-card.....................................................................................................11

3.4 step3: Boot the board from the SD-card................................................................................................................12

4Running Linux: First steps ................................................................................................................................................13

4.1 LogIn.......................................................................................................................................................................13

4.2 Setting up WiFi .......................................................................................................................................................13

5Linux Development Environment ....................................................................................................................................14

5.1 Toolchain................................................................................................................................................................14

5.2 Eclipse Development Environment .......................................................................................................................15

6Example1: HelloWorld application ..................................................................................................................................16

6.1 Start the Eclipse IDE ...............................................................................................................................................16

6.2 Create a new project..............................................................................................................................................16

6.3Implement application ...........................................................................................................................................18

6.4 Build and transfer the application..........................................................................................................................18

6.5 Execute the application..........................................................................................................................................18

7Example2: BlinkyLED........................................................................................................................................................20

7.1 Create a new project..............................................................................................................................................20

7.2 Implement application ...........................................................................................................................................20

7.3 Build and transfer the application..........................................................................................................................20

7.4 Execute the application..........................................................................................................................................20

8Example3: TogglyGPIO.....................................................................................................................................................22

8.1 Setup ......................................................................................................................................................................22

8.2 Create a new project..............................................................................................................................................22

8.3 Implement application ...........................................................................................................................................22

8.4 Build and transfer the application..........................................................................................................................25

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8.5 Execute the application..........................................................................................................................................25

9Statements regarding FCC ...............................................................................................................................................26

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1Linux on the DragonBoard 410c

The Linux image for the Dragonboard is built by Linaro and is based on Debian with the v4.2.4 Linux Kernel (as of this

writing).

1.1 Known limitations

Please see the Linaro Wiki for details regarding the known limitations of the latest Linux image:

http://builds.96boards.org/releases/dragonboard410c/linaro/debian/latest#tabs-1

1.2 Boot-phase status indicators

For trouble shooting during the boot-phase the 4 User-LED’s on the board (LED1-4) have the following meaning:

LED

Status

Description

LED1

Heartbeat

Processor watchdog heartbeat

LED2

eMMC

eMMC data transfer

LED3

SD-card data transfer

LED4

Unused

N/A

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2Installing Linux

There are currently two supported methods to install a Linux Image on the DragonBoard410c:

Installing the image from SD-card

Installing the image from a Host computer via a USB cable and fastboot

The following chapters describe the two methods in detail.

2.1 Installing from SD-card

This is the easiest method to install Linux on the DragonBoard and is recommended for users that are just getting started

with the DragonBoard.

2.1.1 Installation prerequisites

SD-card: In order to install Linux directly from SD-card you need a SD-card with at least 4GB in size.

A monitor capable of 1080p resolution. A monitor with lower resolution might not be able to display the high

resolution output by the board.

Mouse and keyboard

2.1.2 Installation overview

In order to install Linux from SD-card just follow these simple steps:

Download the Installer-image from the 96-Boards Website

Write the Installer-image onto a micro SD-card

Boot the DragonBoard from the SD-card

Reboot the board and enjoy!

The following chapters describe each step in more detail:

2.1.3 Step1: Download the Installer-image from the 96-Boards Website

Image name

Website link

dragonboard410c_sd_card_insta

ll_debian.zip

http://builds.96boards.org/releases/dragonboard410c/linaro/debian/latest/dragonbo

ard410c_sdcard_install_debian-*.zip

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2.1.4 Step2: Write the Installer-image onto a micro SD-card

Write the Installer image onto the SD-card using your favorite imaging tool:

On Windows:

On Linux:

Execute the following commands:

2.1.5 Step3: Boot the DragonBoard from the SD-card

●Plug In the programmed SD-card into the board

●Connect a Mouse and Keyboard to the board

●Connect a monitor with an HDMI cable to the board

●Set the boot switches S6 to 0100 (boot from SD-card)

●Plug the power supply into the board

●The board should start up and show a Dialog from which you can choose the Operating System to install

Download the Win32DiskImager tool from here

Start the DiskImager tool

Under Image file select the path to the image

Under Device choose the drive letter under which the sd-card was detected

Click Write -> This will write the image onto the micro sd-card

sudo dd if=db410_sd_install_linux.img of=/dev/XXX bs=2M

sync

Where XXX is the device name

Warning: Do not override your hard drive. In most cases, XXX will be mmcblk0 or sdx where x depends on the

number of fixed disks in your system. You can determine the sd-cards device name by using the following

command:

sudo fdisk -l

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●Choose the displayed Operating system (Linaro Linux) and click Install. This will flash the OS on the board eMMC

●Once you see the programming successful dialog proceed with the next step

2.1.6 Step4: Reboot and enjoy!

●unplug the power cord

●remove the SD-card

●reset the boot switches to 0000

●Plug in the power cord. The system should now boot into your chosen Operating System

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2.2 Installing from Host-pc

This method is recommended for experienced users who will be downloading many iterative experimental versions of

self-compiled OS’s. It is also a fallback method in case the first method fails because either the monitor or mouse and

keyboard could not be detected. Since this method uses a HostPC to program the board a separate monitor and

mouse/keyboard do not need to be connected to the board.

This guide describes the process both for Windows and Linux Host systems.

2.2.1 Installation prerequisites

Fastboot: This method requires the Fastboot tool to be installed on the HostPC. Fastboot is a tool that

communicates with the bootloader of the DragonBoard 410c and allows you to flash images onto the board.

See below for instruction on how to install Fastboot on your Host PC.

Install fastboot on your Host PC:

Download and install the fastboot tool on to your Host PC:

On Windows Host:

Google currently does not offer a standalone Windows Installer for fastboot. Instead it provides fastboot only as part of

the full Android Studio development environment installation. If you want to install fastboot without the full Android

Studio installation you can find third party installers on the web site.

On Linux Host (Ubuntu/Debian):

Execute the following command:

sudo apt-get install android-tools-fastboot

2.2.2 Installation overview

In order to install Linux from a Host PC just follow these simple steps:

step 1. Download the Linux images from the 96Boards Website

step 2. Bring the board into fastboot-mode

step 3. Start the fastboot tool on the HostPC

step 4. Flash the Bootloader Image

step 5. Flash the boot image

step 6. Flash the rootfs image

step 7. Reboot and enjoy

The following chapters describe each step in more detail:

2.2.3 Step1: Download the Linux images from the 96Boards Website

Download the following images from the 96Boards website:

Image

Filename

Link

Bootloader

image

dragonboard410c_bootloader_e

mmc_linux.zip

http://builds.96boards.org/releases/dragonboard410c/linaro/rescue/l

atest/dragonboard410c_bootloader_emmc_linux*.zip

boot image

boot-linaro-jessie-qcom-

snapdragon-arm64.img.gz

http://builds.96boards.org/releases/dragonboard410c/linaro/debian/l

atest/boot-linaro-jessie-qcom-snapdragon-arm64-*.img.gz

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Rootfs

image

linaro-jessie-alip-qcom-

snapdragon-arm64.img.gz

http://builds.96boards.org/releases/dragonboard410c/linaro/debian/l

atest/linaro-jessie-alip-qcom-snapdragon-arm64-*.img.gz

2.2.4 Step2: Bring the board into fastboot-mode

●Ensure the boot switches S6 are set to 0000

●Connect the micro-usb cable to the board

●Press and hold the Vol- button (S4)

●Connect the power supply to the board

2.2.5 Step3: Start the fastboot tool on the HostPC

Start the fastboot application on the host PC and execute the following fastboot command. You should see your board

listed:

fastboot devices

Please note: If you run Fastboot from a Linux HostPC you might have to run it with sudo privileges.

For example: sudo fastboot devices

2.2.6 Step4: Flash the bootloader-image

Extract the Bootloader image:

unzip dragonboard410c_bootloader_emmc_linux-BB.zip

Then flash the Bootloader-image files via fastboot**:

fastboot flash partition gpt_both0.bin

fastboot flash hyp hyp.mbn

fastboot flash modem NON-HLOS.bin

fastboot flash rpm rpm.mbn

fastboot flash sbl1 sbl1.mbn

fastboot flash sec sec.dat

fastboot flash tz tz.mbn

fastboot flash aboot emmc_appsboot.mbn

fastboot erase boot

fastboot erase rootfs

fastboot erase devinfo

** If you use fastboot on a Linux HostPC you might have to execute fastboot with sudo privileges.

For example: sudo fastboot flash partition gpt_both0.bin

2.2.7 Step5: Flash the boot-image

Extract the boot-image:

tar xz boot-linaro-jessie-qcom-snapdragon-arm64-YYYYMMDD-UU.img.gz

Then flash the boot-image into the boot partition of the board via fastboot**:

fastboot flash boot boot-linaro-jessie-qcom-snapdragon-arm64-YYYYMMDD-UU.img

2.2.8 Step6: Flash the rootfs-image

Extract the rootfs-image:

Tar xz linaro-jessie-alip-qcom-snapdragon-arm64-YYYYMMDD-UU.img.gz

Then flash the rootfs-image into the rootfs partition of the board via fastboot**:

fastboot flash rootfs linaro-jessie-alip-qcom-snapdragon-arm64-YYYYMMDD-UU.img

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2.2.9 Step7: Reboot and enjoy!

Once the download of the images is complete, follow these steps:

●Unplug the board from the power supply

●Disconnect the USB cable

●Reset the boot switches back to 0000

●Connect the board to the power supply

After the reboot you should see Linux startup.

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