Dave Embedded Systems SBC AXEL Manual de usuario

User's Guide

www.dave.eu [email protected]

DAVE Embedded Systems

Single Board Com uter

AXEL LITE

SBC AXEL (SBCX)

S B C X U s e r ' s G u i d e v . 1 . 0 . 1

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Table of Contents
  Preface................................................................................................................................10
1    About this manual........................................................................................................10
2    Copyrights/Trademarks................................................................................................10
3    Standards.....................................................................................................................10
4     isclaimers..................................................................................................................10
5    Warranty.......................................................................................................................10
6    Related documents......................................................................................................12
7    Conventions, Abbreviations, Acronyms.......................................................................12
  Introduction.........................................................................................................................14
1    Product Highlights........................................................................................................15
2    Block  iagram..............................................................................................................16
3    Feature Summary........................................................................................................17
4    Assembly view: top......................................................................................................18
5    Assembly view: bottom................................................................................................19
6    On-board connectors...................................................................................................20
  Mechanical specifications...................................................................................................22
1    Board Layout................................................................................................................22
1.1     imensions ......................................................................................................... 22
1.2     rills: position and size ....................................................................................... 23
1.3    Side view ............................................................................................................ 24
2    Mechanical data table..................................................................................................24
  System components............................................................................................................25
1    Power Supply Unit (PSU)............................................................................................25
1.1    Power-up sequence ........................................................................................... 25
1.2    RTC battery ........................................................................................................ 25
2    On-board buttons.........................................................................................................26
2.1    S3 - Reset button ................................................................................................ 26
  Interfaces and connectors...................................................................................................27
1    Power supply – J2.......................................................................................................27
1.1    Power LE  –  L1 ............................................................................................... 28
2    CPU module connector – J10......................................................................................28
3    UARTs..........................................................................................................................29
3.1    UART3 – J22 ...................................................................................................... 29
3.1.1  Accessing the peripheral ................................................................................29
3.2    UART4 – J25 ...................................................................................................... 31
3.2.1  Accessing the peripheral ................................................................................31
3.3    UART5 – J21 ...................................................................................................... 32
3.3.1  Configuration Jumpers J19 e J20 ..................................................................33
3.3.2  Accessing the peripheral ................................................................................34
4    Ethernet port – J16......................................................................................................35
4.1    Using the peripheral ........................................................................................... 36
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4.1.1  Linux messages at cable connection: ............................................................36
4.1.2  Check interface status with ifconfig ................................................................36
4.1.3  Test with iperf: ................................................................................................36
5    CAN – J23....................................................................................................................37
5.1    Accessing the peripheral .................................................................................... 38
5.1.1  Linux messages at boot time: ........................................................................38
5.1.2  Enable the interface and check status: ..........................................................38
5.1.3  Test with cansend utility: ................................................................................39
5.1.4  Additional information .....................................................................................39
6    LV S............................................................................................................................40
6.1    LC  LV S0 connector – J8 ............................................................................... 40
6.2    LC  LV S1 connector - J9 ................................................................................ 41
6.3    Accessing the peripheral .................................................................................... 41
6.3.1  LV S0 ............................................................................................................41
6.3.2  LV S1 ............................................................................................................41
6.3.3  Linux messages at boot time: ........................................................................42
7    H MI – J11..................................................................................................................42
7.1    Accessing the peripheral .................................................................................... 43
7.1.1  Linux messages at boot time: ........................................................................43
8    WI E™ connector – J33.............................................................................................44
8.1    Available add-on modules .................................................................................. 46
9    MIPI and PCI Express connector – J34.......................................................................46
9.1    Accessing the peripheral .................................................................................... 48
10    Touch screen connector – J50...................................................................................49
10.1    Accessing the peripheral .................................................................................. 49
10.1.1  Touch screen calibration and test: ...............................................................49
10.1.2  Linux messages at boot time: ......................................................................50
11    MicroS  slot – J26.....................................................................................................50
11.1    Accessing the peripheral .................................................................................. 51
11.1.1  Linux messages at boot time: ......................................................................51
12    USB ports...................................................................................................................52
12.1    USB Host – J17 ................................................................................................ 52
12.1.1  Overcurrent limiter ........................................................................................52
12.1.2  Accessing the peripheral ..............................................................................53
12.2    USB OTG – J18 ................................................................................................ 54
12.2.1  Accessing the peripheral ..............................................................................55
13    GPIOs........................................................................................................................56
13.1    Available GPIOs ............................................................................................... 56
13.2    Accessing the peripheral .................................................................................. 56
14    Audio – J27................................................................................................................57
14.1    Enable microphone bias voltage – J14 ............................................................ 58
14.2    Accessing the peripheral .................................................................................. 58
14.2.1  Basic usage ..................................................................................................58
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14.2.2  Linux messages at boot time: ......................................................................58
15    RTC............................................................................................................................59
15.1    Accesssing the peripheral ................................................................................ 59
16     WM – J24................................................................................................................60
16.1     WM features: .................................................................................................. 60
16.2     WM conceptual block diagram ...................................................................... 61
16.3     WM connector's pinout .................................................................................. 61
16.4    Accessing the peripheral .................................................................................. 62
16.4.1  Enable  WM ................................................................................................62
16.4.2  Wireless LAN ...............................................................................................62
16.4.3  WiFi calibration .............................................................................................64
16.4.4  Connecting to an encrypted wireless network .............................................64
16.4.5  Bluetooth ......................................................................................................65
17    JTAG – J 1................................................................................................................67
  Getting started.....................................................................................................................68
1    Unboxing......................................................................................................................68
1.1    SBCX kit contents ............................................................................................... 69
2    Hardware setup...........................................................................................................70
3    First boot......................................................................................................................70
3.1    Accessing the serial console .............................................................................. 70
3.2    Connecting to the SBC through SSH ................................................................. 72
3.2.1  From Windows ...............................................................................................72
3.2.2  From UNIX/LINUX ..........................................................................................72
4    Running different operating systems...........................................................................74
4.1    Linux distributions ............................................................................................... 74
4.1.1  SBCLinux (default) .........................................................................................74
4.2    Android ............................................................................................................... 74
4.3    RESERVE  AREA registration .......................................................................... 74
4.4    Creating a bootable S  with a new operating system ....................................... 76
4.4.1  From Windows ...............................................................................................76
 From Linux .................................................................................................................77
4.5    Booting the system with the new operating system ........................................... 77
   evelopment tools..............................................................................................................78
1    Embedded Linux..........................................................................................................78
2    XELK............................................................................................................................79
2.1    Known limitations ................................................................................................ 80
2.2     V K .................................................................................................................. 81
2.2.1   V K features ...............................................................................................81
2.2.2  MicroS  contents ...........................................................................................82
3     evelopment environment...........................................................................................83
3.1    Introduction ......................................................................................................... 83
3.2    Software components ......................................................................................... 84
3.2.1  Toolchain ........................................................................................................84
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3.2.2  Bootloader ......................................................................................................84
3.2.3  Kernel .............................................................................................................85
3.2.4  Linux  evice Tree ..........................................................................................85
3.2.5  Target root file system ....................................................................................85
3.2.6  Yocto ...............................................................................................................85
3.2.7  Git repositories ...............................................................................................86
3.2.8  RSA key generation .......................................................................................87
3.3    Working with SBCX ............................................................................................ 88
3.3.1  The build system ............................................................................................88
3.3.2  Prerequisites ..................................................................................................88
3.3.3  Importing the  V K virtual machine ..............................................................89
3.3.4  Launching the  V K virtual machine ............................................................91
3.3.5  Overview of the installed components ...........................................................94
3.3.6  TFTP Server ...................................................................................................95
3.3.7  NFS Server .....................................................................................................96
3.3.8  Pre-built toolchain ..........................................................................................96
3.3.9  Pre-built root file system .................................................................................96
4    Building the software components with Yocto.............................................................98
4.1    Prerequisites ....................................................................................................... 98
4.2    Initializing the build environment ........................................................................ 99
4.3    Build the Yocto image ......................................................................................... 99
5    Building the software components outside Yocto......................................................100
5.1    Build/configure U-Boot ..................................................................................... 100
5.2    Build/configure Linux kernel ............................................................................. 100
5.3    Build a custom application ................................................................................ 101
6    Building Qt applications.............................................................................................103
6.1    Launching Qt Creator ....................................................................................... 103
6.2    Building a QtQuick “Hello World!” ..................................................................... 104
6.3    Running (and debugging) a Qt application on the SBCX ................................ 108
6.3.1  Launch the application .................................................................................108
6.3.2   ebug the application ..................................................................................109
6.3.3  Using breakpoints .........................................................................................110
7    Building Android applications.....................................................................................111
7.1    Android development model ............................................................................. 111
7.1.1  Introduction ...................................................................................................111
7.1.2   evelopment tools ........................................................................................112
7.1.3  Android N K .................................................................................................112
7.1.4  Overview of the S K ....................................................................................112
7.1.5  Android emulator ..........................................................................................112
7.1.6  Android Tools ................................................................................................113
7.2    Android porting on SBCX .................................................................................. 113
7.2.1  Running in "Full control" mode .....................................................................114
7.2.2  Running in "Normal" mode ...........................................................................115
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7.2.3  Network setup ...............................................................................................115
7.3    Running the Android  ebug Bridge (A B) ....................................................... 116
7.3.1  A B over USB ..............................................................................................116
7.3.2  A B over Ethernet ........................................................................................116
7.3.3  Connecting via A B .....................................................................................116
7.4    Step By Step Guide to your First Android App ................................................. 117
7.4.1  Preliminar steps ............................................................................................117
7.4.2  Creating applications with Android Studio ....................................................118
7.4.3   eploy and launch the application on the SBCX .........................................120
8    Programming the flash memory................................................................................122
8.1    Flashing binary images in NOR flash ............................................................... 122
8.1.1  U-Boot ..........................................................................................................122
8.1.2  Linux kernel ..................................................................................................122
8.1.3   evice tree ...................................................................................................122
8.2    Flashing binary images in NAN  flas ............................................................... 122
8.2.1  U-Boot ..........................................................................................................122
8.2.2  Linux kernel ..................................................................................................122
8.2.3   evice tree ...................................................................................................122
8.3    Flashing root file systems ................................................................................. 122
9    Customizing the splash screen..................................................................................124
9.1    Customizing the splash screen ........................................................................ 124
9.2    Additional resources ......................................................................................... 124
9.3    Splash image in NOR SPI flash ....................................................................... 124
9.3.1  U-Boot variables ...........................................................................................124
9.3.2  Commands ...................................................................................................125
9.4    Splash image in NAN  flash ............................................................................ 125
9.4.1  U-Boot variables ...........................................................................................125
9.4.2  Commands ...................................................................................................125
  Frequently Asked Questions.............................................................................................126
1    Q: Where can I found AXEL SOM information?........................................................126
2    Q: I've received the SBCK package. How am I supposed to start working with it?. .126
3    Q: How can I update the XELK version?...................................................................126
4    Q: How can I work with the XYZ peripheral/interface?..............................................127
5    Q: How can I configure the AXEL system to boot from network?.............................127
6    How can I change the CPU clock frequency?...........................................................128
7    How can I limit the number of active CPU cores?.....................................................129
8    Q: How can I modify the IP address of the board?....................................................129
9    Q: How can I reduce the boot time?..........................................................................130
  Appendices........................................................................................................................131
1    U-Boot startup messages..........................................................................................131
2    U-Boot default environment.......................................................................................131
3    Boot messages on the serial console........................................................................133
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Illustration Index

Fig. 1: SBCX..............................................................................................................................14

Fig. 2: SBCX block diagram......................................................................................................16

Fig. 3: Assembly view: top.........................................................................................................18

Fig. 4: Assembly view: bottom..................................................................................................19

Fig. 5: Board layout - top view..................................................................................................22

Fig. 6: SBCX drills.....................................................................................................................23

Fig. 7: Side view........................................................................................................................24

Fig. 8: RTC battery....................................................................................................................25

Fig. 9: Reset button...................................................................................................................26

Fig. 10: Power connector..........................................................................................................27

Fig. 11: Power LE ...................................................................................................................28

Fig. 12: SOM connector............................................................................................................28

Fig. 13: ebug console connector............................................................................................29

Fig. 14: UART4 connector.........................................................................................................31

Fig. 15: UART5 connector.........................................................................................................32

Fig. 16: UART5 jumper configurations......................................................................................33

Fig. 17: Ethernet connector.......................................................................................................35

Fig. 18: CAN connector.............................................................................................................37

Fig. 19: CAN electrical connections..........................................................................................38

Fig. 20: LV S connectors.........................................................................................................40

Fig. 21: H MI connector...........................................................................................................42

Fig. 22: WI E™ connector.......................................................................................................44

Fig. 23: Touch screen connector...............................................................................................48

Fig. 24: MicroS slot.................................................................................................................49

Fig. 25: USB host connector.....................................................................................................51

Fig. 26: USB OTG connector....................................................................................................53

Fig. 27: Audio connector...........................................................................................................56

Fig. 28: WM connector...........................................................................................................59

Fig. 29: JTAG connector...........................................................................................................66

Fig. 30: Accessing the RESERVE AREA...............................................................................74

Fig. 31: evelopment environment block diagram...................................................................82

Fig. 32: Yocto architecture.........................................................................................................85

Fig. 33: Launching the Virtual Box Manager.............................................................................88

Fig. 34: Starting the import phase.............................................................................................88

Fig. 35: Selecting the OVA file...................................................................................................89

Fig. 36: Importing the Virtual Machine......................................................................................89

Fig. 37: Launching the virtual machine.....................................................................................90

Fig. 38: V K desktop..............................................................................................................91

Fig. 39: Mounting the virtual disk..............................................................................................92

Fig. 40: Virtual disk mounted.....................................................................................................92

Fig. 41: Virtual disk contents.....................................................................................................93

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Fig. 42: Pre-built root file systems.............................................................................................96

Fig. 43: Launching QtCreator..................................................................................................102

Fig. 44: QtQuick "Hello World!"...............................................................................................106

Fig. 45: Launch the Qt application on the SBCX....................................................................107

Fig. 46: ebug the Qt application on the SBCX.....................................................................108

Fig. 47: Setting a breakpoint to stop the application execution..............................................109

Index of Tables

Tab. 1: Related documents.......................................................................................................12

Tab. 2: Abbreviations and acronyms used in this manual.........................................................12

Tab. 3: SBCX features summary...............................................................................................17

Tab. 4: Electrical, Mechanical and Environmental Specifications.............................................17

Tab. 5: Electrical, Mechanical and Environmental Specifications.............................................21

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1 Preface

1.1 About this manual

This document serves as a user manual and technical reference for the

SBCX single board computer.

1.2 Co yrights/Trademarks

Ethernet® is a registered trademark of XEROX Corporation.

All other products and trademarks mentioned in this manual are property

of their respective owners.

notification.

1.3 Standards

DAVE Embedded Systems is certified to ISO 9001 standards.

1.4 Disclaimers

DAVE Embedded Systems does not assume any responsibility for

availability, supply and support related to all products mentioned in this

manual that are not strictly part of the SBCX board.

SBCX is not designed for use in life support appliances, devices, or

systems where malfunctioning of these products can reasonably be

expected to result in personal injury. DAVE Embedded Systems

customers who are using or selling these products for use in such

applications do so at their own risk and agree to fully indemnify DAVE

Embedded Systems for any damage resulting from such improper use

or sale.

1.5 Warranty

DAVE Embedded Systems is guaranteed against defects in material

and workmanship for the warranty period from the shipment date. uring

the warranty period, DAVE Embedded Systems will at its discretion

decide to repair or replace defective products. Within the warranty period,

the repair of products is free of charge provided that warranty conditions

are observed.

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