Diva Embedded Linux Kit (DIVELK)

Info Box Applies to Dacu Applies to Diva

Introduction

Diva Embedded Linux Kit (DIVELK for short) provides all the necessary components required to set up the developing environment to:

• build the bootloader (U-Boot)
• build and run Linux operating system on Diva-based systems
• build Linux applications that will run on the target.

The main kit components are:

• hardware platform composed by Diva system-on-module (SOM for short) and carrier board. Supported carrier boards are:
  • DivaEVB-Lite standalone
  • DivaEVB-Lite plugged on Dacu carrier board
• Development virtual machine containing:
  • Toolchain
  • U-Boot bootloader sources
  • Linux kernel sources
  • Build system
  • Pre-built root file systems
• Technical documentation such hardware manuals, mechanical drawings, reference schematics, application notes etc.

The documents related to the software issues help the user to quickly start configuring the bootloader and the operating system, by hiding most of the complexity of the underlying hardware. For more details about Diva hardware characteristics, please refer to the Diva Hardware Manual. An account for the reserved area of DAVE Embedded Systems website is required to access the kit contents.

Kit Contents

Component	Description	Notes
	Diva SOM CPU: TI AM3359 SDRAM: 512 MB DDR3 NOR: bootable SPI flash 32 MB NAND: 1GB	Please refer to Diva Hardware Manual
	Diva-EVB-Lite Carrier board	Please refer to DivaEVB-Lite page
	Dacu Carrier board	Please refer to Dacu page
	Ampire AM-800480STMQW 7” 800x480 LCD display LVDS interface	Please refer to Diva Software Manual
	AC/DC Single Output Wall Mount adapter Output: +12V – 2.0 A	Please refer to Diva Software Manual
	DB9 Male Serial port adapter	Please refer to Diva Software Manual
	MicroSDHC card with SD adapter and USB adapter	Please refer to Diva Software Manual

DIVELK software components

DAVE Embedded Systems adds to the latest AMSDK from Texas Instruments the customization required to support the DIVA platform. For this reason most of the documentation provided by TI remains valid for the DIVELK development kit. However, some customization is required, in particular at bootloader and linux kernel levels.

The following table shows how DIVELK releases are related to AMSDK releases.

	DIVELK version
Release number	1.0.0	2.0.0	2.1.0	2.2.0	3.0.0
Status	Released	Released	Released	Released	Released
Release date	June 2013	October 2014	June 2015	October 2015	June 2017
Release notes	Ver 1.0.0	Ver 2.0.0	Ver 2.1.0	Ver 2.2.0	Ver 3.0.0
SOM PCB version	CS133012A	CS133012C	CS133012C	CS133012C	CS133012C
Supported carrier boards	DivaEVB-Lite Dacu	DivaEVB-Lite Dacu	DivaEVB-Lite Dacu	DivaEVB-Lite Dacu SBC-DIVA	DivaEVB-Lite Dacu SBC-DIVA
U-Boot version	2012.10-divelk-1.0.0	2013.10-divelk-2.0.0	2013.10-divelk-2.1.0	2013.10-divelk-2.2.0	2015.07-divelk-3.0.0
Linux version	3.2.0-divelk-1.0.0	3.12.10-divelk-2.0.0	3.12.10-divelk-2.1.0	3.12.10-divelk-2.2.0	4.1.18-divelk-3.0.0(LTS)
Drivers	SPI NOR Flash (boot) NAND 8 bit (boot) UART0 (2-wire) USB Host SD/MMC1 GPIO LCD Touch screen controller EMAC0 RMII (Fast Ethernet) PMIC RTC (battery powered) Audio (ALSA)	SPI NOR Flash (boot) NAND 8 bit (boot) UART0 (2-wire) USB Host SD/MMC1 GPIO LCD Touch screen controller EMAC0 RMII (Fast Ethernet) PMIC RTC (battery powered) Audio (ALSA) USB OTG CAN ADC	SPI NOR Flash (boot) NAND 8 bit (boot) UART0 (2-wire) USB Host SD/MMC1 GPIO LCD Touch screen controller EMAC0 RMII (Fast Ethernet) PMIC RTC (battery powered) Audio (ALSA) USB OTG CAN ADC Splash screen in u-boot ConfigID	SPI NOR Flash (boot) NAND 8 bit (boot) UART0 (2-wire) USB Host SD/MMC1 GPIO LCD Touch screen controller EMAC0 RMII (Fast Ethernet) PMIC RTC (battery powered) Audio (ALSA) USB OTG CAN ADC Splash screen in u-boot ConfigID	SPI NOR Flash (boot) NAND 8 bit (boot) UART0 (2-wire) USB Host SD/MMC1 GPIO LCD Touch screen controller EMAC0 RMII (Fast Ethernet) PMIC RTC (battery powered) USB OTG CAN ADC Splash screen in u-boot ConfigID
TI AMSDK	05.06.00.00	07.00.00.00	07.00.00.00	07.00.00.00	Processor SDK 02.00.02
Build System	-	Yocto Dylan (1.4)	Yocto Dylan (1.4)	Yocto Dylan (1.4)	Yocto Fido (1.8)
Graphic libraries	Qt 4.8.4	Qt 4.8.4 Qt 5.x	Qt 4.8.4 Qt 5.3	Qt 4.8.4 Qt 5.3	Qt 5.5

DIVELK Updates

It's recommended to use the latest available DIVELK version. Customer who want to update to the latest DIVELK release can send an email to support-diva@dave.eu. Please refer to Release notes for further information.

Updating git repositories

In DIVELK, the following source trees are clones of DAVE Embedded Systems public git repositories:

Component	GIT Remote	DIVELK Installation Directory
Linux	git@git.dave.eu:dave/diva/linux-am33x.git	/home/dvdk/divelk/linux-am33x.git
U-Boot	git@git.dave.eu:dave/diva/u-boot-am33x.git	/home/dvdk/divelk/u-boot-am33x.git
Yocto BSP	git@git.dave.eu:dave/diva/diva-bsp.git	Please refer to Building the software components with Yocto

This means that these components can be kept in sync and up to date with DAVE Embedded Systems repositories.

RSA key generation

Please follow the procedure reported below to generate the RSA ssh key:

• select your username (ad es. username@myhost.com)
• start the DVDK and login into the virtual machine
• start a shell session
• enter the .ssh subdirectory into your home directory: cd ~/.ssh/
• launch the following command:
  

  ssh-keygen -t rsa -C "username@myhost.com" -f username@myhost.com

• this command creates the files ~/.ssh/username@myhost.com (private key) and ~/.ssh/username@myhost.com.pub (public key)
• edit your ~/.ssh/config adding the following lines:

Host git.dave.eu
    User git
    Hostname git.dave.eu
    PreferredAuthentications publickey
    IdentityFile ~/.ssh/username@myhost.com

Please send the public key file to one of the following email support addresses (depending on which SOM is included in your kit version)

• support-diva@dave.eu

with the request for the creation of a new public git account associated to your username. The support team will enable the account and send you a confirmation as soon as possible.

Synchronizing the repository

When the account is enabled, you can synchronize a source tree entering the repository directory and launching the git fetch command, like in the following example:

dvdk@dvdk-vm:~$ cd /home/dvdk/divelk/linux-am33x.git/
dvdk@dvdk-vm:/home/dvdk/divelk/linux-am33x.git$ git fetch origin

Please note that git fetch doesn't merge the commits on the current branch. To do that, you should run

git merge origin/diva

or replace the fetch-merge process with a single git pull command. Please note that the recommended method is the fetch-merge process. For further information on Git, please refer to Git Documentation.

Release notes

N.B. Customers who want to update from DIVELK 1.0.0 to DIVELK 2.x.x can send an email to support-diva@dave.eu.

DIVELK 2.2.0

• Release date: October 2015
• Status: Released
• AMSDK version: 07.00.00.00
• Supported carrier boards: DIVAEVB-Lite, Dacu, SBC-DIVA

Notes

It's highly recommended to read the ConfigID_and_UniqueID page.

• Maintenance release
• Bug fixes
• Added support for SBC-DIVA
• Updated kernel and u-boot versions

Known limitations

Issue #	Component	Subsystem	Description
0001	Linux	USB	USB0, when configured as OTG, requires loading of the gadget module for detecting devices (and entering host mode)
0002	Yocto	ADT	The Yocto ADT plugin for Eclipse doesn't work
0003	Linux	Audio	Codec on the DACU board doesn't work out-of-the-box. A software patch is required, please contact support-diva@dave.eu for information on how to enable the audio codec.

DIVELK 2.1.0

• Release date: June 2015
• Status: Released
• AMSDK version: 07.00.00.00
• Supported carrier boards: DIVAEVB-Lite, Dacu

Notes

It's highly recommended to read the ConfigID_and_UniqueID page.

• Maintenance release
• Updated kernel and u-boot versions
• Bug fixes

Known limitations

Issue #	Component	Subsystem	Description
0001	Linux	USB	USB0, when configured as OTG, requires loading of the gadget module for detecting devices (and entering host mode)
0002	Yocto	ADT	The Yocto ADT plugin for Eclipse doesn't work
0003	Linux	Audio	Codec on the DACU board doesn't work out-of-the-box. A software patch is required, please contact support-diva@dave.eu for information on how to enable the audio codec.

DIVELK 2.0.0

• Release date: October 2014
• Status: Released
• AMSDK version: 07.00.00.00
• Supported carrier boards: DIVAEVB-Lite, Dacu

Notes

• First major update
• Added Yocto support
• Updated kernel and u-boot versions
• Bug fixes

Known limitations

Issue #	Component	Subsystem	Description
0001	Linux	USB	USB0, when configured as OTG, requires loading of the gadget module for detecting devices (and entering host mode)
0002	Yocto	ADT	The Yocto ADT plugin for Eclipse doesn't work

DIVELK 1.0.0

• Release date: June 2013
• Status: released
• AMSDK version: 05.06.00.00
• Supported carrier boards: DIVAEVB-Lite, Dacu

Notes

• First official release

Related Documents

• DIVA
• Diva Hardware Manual
• Diva Software Manual
• DIVELK Quick Start Guide
• DivaEVB-Lite
• Dacu category page
• Dacu carrier board
• Dacu for the Diva SOM