BB-View Cape
Portable LCD Solution for the BeagleBone Family
BY
User Manual
Version 2
Dated: 21st May 2014
Revision History:
Version Date Description
1.0 26/11/2013 Original Version
1.1 27/03/2014 Correction
DISCLAIMER
DISCLAIMERDISCLAIMER
DISCLAIMER
This product is intended to be used for ENGINEERING DEVELOPMENT,
DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not
considered by element14 to be a finished end product fit for general consumer
use. Persons handling the product(s) must have electronics training and
observe good engineering practice standards.
The goods being provided are not intended to be complete in terms of required
design and/or manufacturing related protective considerations, including
product safety and environmental measures typically found in end products
that incorporate such semiconductor components or circuit boards.
Table of Contents
1 Product Overview ....................................................................... 1
1.1 Introduction ............................................................................ 1
1.2 Kit Contents............................................................................ 2
1.3 Board Interfaces ..................................................................... 2
1.4 System Block Diagram ............................................................. 2
1.5 Physical Dimensions (mm) ........................................................ 3
2 BB-View Features ....................................................................... 4
2.1 Hardware and Software Features:.............................................. 4
2.2 Operational Parameters:........................................................... 4
3 Hardware Description ................................................................. 5
3.1 LCD Interface (LCD) ................................................................ 5
3.2 Extended I/O Interface (J1) ...................................................... 7
3.3 Extended I/O Interface (J2) ...................................................... 9
3.4 Keypad Interfaces ................................................................. 10
3.5 LED Interfaces ...................................................................... 11
4 How to Setup BB-View .............................................................. 12
4.1 Installing Windows Drivers for the USB Interface ....................... 12
4.2 Setting up PuTTY ................................................................... 15
5 Demonstration and Compilation of the TI-SDK ......................... 18
5.1 BB-View Demonstration using a Pre-Compiled Image ................. 18
5.1.1 Image Programming ........................................................ 18
5.1.1.1 For BeagleBone Black ................................................ 18
5.1.1.2 For BeagleBone ........................................................ 20
5.1.2 Setting up a 4.3” LCD Module ........................................... 20
5.1.3 Setting up a 7” LCD Module .............................................. 21
5.2 Keypad Test .......................................................................... 21
5.3 LED Test ............................................................................... 21
5.4 Pre-Compiled TI-SDK Image Features ...................................... 22
5.4.1 QML Playground .............................................................. 23
5.4.2 Animated Tiles ................................................................ 24
5.4.3 Thermostat Demo ........................................................... 24
5.4.4 Vector Deformation ......................................................... 25
5.5 Working With the TI-SDK Image .............................................. 25
5.5.1 Setup for Development Environment ................................. 25
5.5.2 Compiling "Uboot" for BB-View ......................................... 26
5.5.2.1 Compiling "uboot" from Texas Instruments .................. 26
5.5.2.2 Compiling "uboot" from element14 ............................. 27
5.5.3 Compiling "Kernel" for BB-View ......................................... 28
5.5.3.1 Compiling the "Kernel" from Texas Instruments ............ 28
5.5.3.2 Compiling the "Kernel" from element14 ....................... 29
5.5.4 System Update with BB-View Support................................ 29
6 Demonstration and Compilation of Angstrom ........................... 31
6.1 Demonstration of the Display Function ..................................... 31
6.1.1 Image Programming ........................................................ 31
6.1.2 Setup for 4.3” LCD Module ............................................... 32
6.1.3 Setup for 7” LCD Module .................................................. 32
6.2 Keypad Test .......................................................................... 33
6.3 LED Test ............................................................................... 33
6.4 Compilation of the Kernel ....................................................... 33
7 Appendix 1: Installing an Ubuntu Linux System ....................... 34
7.1 Installing VirtualBox .............................................................. 34
7.2 Installing an Ubuntu Linux System .......................................... 39
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1 Product Overview
1.1 Introduction
The BB-View is a portable LCD expansion cape with touchscreen capability
for BeagleBone boards, a credit-card-sized expandable Linux computer to
evaluate the TI’s Sitara™ AM335x ARM® Cortex™-A8 processors.
The BB-View is 24-bit LCD expansion cape supplied with a TFT LCD(18-bit)
module, available in two size options: 4.3" & 7", which can display up to a
resolution of 480x272 (4.3" LCD) and 800x480 (7" LCD). Both have a 4-wire
resistive touchscreen interface.
BB-View has been designed with convenience in mind and extends the I/O
interfaces of the BeagleBone & BeagleBone Black allowing users to utilise a
touchscreen LCD module without sacrificing I/O interface access. BB-View
fits on top of the BeagleBone OR BeagleBone Black and still has full access to
all the GPIOs via two 46-pin connectors. It’s equipped with five switches
(four for GPIOs & one for Boot) and two user defined LEDs.
The BB-View draws power directly from the board
(BeagleBone or BeagleBone Black)
eliminating the need for any kind of external power supply. The BB-View is
also supplied with a pre-compiled image with Linux QT demos to help set
up your BeagleBone & BeagleBone Black board quickly and easily.
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1.2 Kit Contents
BB-View Cape Only [
BeagleBone OR BeagleBone Black not included
]
4.3” OR 7" Touchscreen LCD Module
Flexible FPC Cable
Quick Start Guide
1.3 Board Interfaces
1.4 ystem Block Diagram
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1.5 Physical Dimensions (mm)
Page | 4
2 BB-View Features
2.1 Hardware and Software Features:
A 24-bit LCD expansion cape for the BeagleBone board family
4-wire resistive touchscreen LCD modules (18-bit):
o 4.3” LCD: 480x272 resolution
o 7” LCD: 800x480 resolution
Five switches (
four for GPIOs & one for BOOT
)
Two user defined LEDs
Full access to all the GPIOs via two 46-pin connectors (
besides those already
used by the BB-View
)
Powered directly from BeagleBone boards, no external power supply
required.
Provided with pre-compiled BSP image with QT Demo to help setup the
BeagleBone board quickly and easily.
Works with BeagleBone & BeagleBone Black
Supporting TISDK and Angstrom image
Drivers and driver source code are provided along with BB-View
2.2 Operational Parameters:
Dimensions: 69.04mm x 54.61mm
Operating Humidity: 20% ~ 90%
Power Supply: +5V (
provided by BeagleBone board
)
PCB Layers: 4
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3 Hardware Description
BB-View expansion cape has an LCD connector (LCD) and two 46-position
dual-row connectors (J1 and J2) that can be used as extended I/O interfaces
for the BeagleBone & BeagleBone Black. This chapter contains pin
definitions for these connectors.
Figure 1: Pin Locations on the BB-View
3.1 LCD Interface (LCD)
Pins Definitions
Descriptions
1
B0
LCD Pixel data bit 23
2
B1
LCD Pixel data bit 20
3
B2
LCD Pixel data bit 17
4
B3
LCD Pixel data bit 11
5
B4
LCD Pixel data bit 12
6
B5
LCD Pixel data bit 13
7
B6
LCD Pixel data bit 14
8
B7
LCD Pixel data bit 15
9
GND
GND
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Pins Definitions
Descriptions
10
G0
LCD Pixel data bit 22
11
G1
LCD Pixel data bit 19
12
G2
LCD Pixel data bit 5
13
G3
LCD Pixel data bit 6
14
G4
LCD Pixel data bit 7
15
G5
LCD Pixel data bit 8
16
G6
LCD Pixel data bit 9
17
G7
LCD Pixel data bit 10
18
GND
GND
19
R0
LCD Pixel data bit 21
20
R1
LCD Pixel data bit 18
21
R2
LCD Pixel data bit 16
22
R3
LCD Pixel data bit 0
23
R4
LCD Pixel data bit 1
24
R5
LCD Pixel data bit 2
25
R6
LCD Pixel data bit 3
26
R7
LCD Pixel data bit 4
27
GND
GND
28
DEN
AC bias control (STN) or pixel data enable
(TFT)
29
HSYNC
LCD Horizontal Synchronization
30
VSYNC
LCD Vertical Synchronization
31
GND
GND
32
CLK
LCD Pixel Clock
33
GND
GND
34
X+
X+ Position Input
35
X-
X- Position Input
36
Y+
Y+ Position Input
37
Y-
Y- Position Input
38
SPI_CLK
SPI clock
39
SPI_MOSI
Slave data in, master data out
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Pins Definitions
Descriptions
40
SPI_MISO
Slave data out, master data in
41
SPI_CS
SPI enable
42
IIC_CLK
IIC master serial clock
43
IIC_DAT
IIC serial bidirectional data
44
GND
GND
45
VDD1
3.3V power for LCD buffer
46
VDD2
3.3V
47
VDD3
5V
48
VDD4
5V
49
RESET
No connection
50
PWREN
GPIO
3.2 Extended I/O Interface (J1)
Pins Definitions Descriptions
1 GND GND
2 GND GND
3 NC NC
4 NC NC
5 NC NC
6 NC NC
7 NC NC
8 NC NC
9 NC NC
10 NC NC
11 LCD_DATA18 LCD Pixel data bit 18
12 LCD_DATA19 LCD Pixel data bit 19
13 LCD_DATA22 LCD Pixel data bit 22
14 LCD_DATA21 LCD Pixel data bit 21
15 LCD_DATA16 LCD Pixel data bit 16
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Pins Definitions Descriptions
16 LCD_DATA17 LCD Pixel data bit 17
17 LCD_DATA20 LCD Pixel data bit 20
18 NC NC
19 LCD_DATA23 LCD Pixel data bit 23
20 NC NC
21 NC NC
22 NC NC
23 NC NC
24 NC NC
25 NC NC
26 NC NC
27 LCD_VSYNC LCD Vertical Synchronization
28 LCD_PCLK LCD Pixel Clock
29 LCD_HSYNC LCD Horizontal Synchronization
30 LCD_DE
AC bias control (STN) or pixel data
enable (TFT)
31 LCD_DATA14 LCD Pixel data bit 14
32 LCD_DATA15 LCD Pixel data bit 15
33 LCD_DATA13 LCD Pixel data bit13
34 LCD_DATA11 LCD Pixel data bit 11
35 LCD_DATA12 LCD Pixel data bit 12
36 LCD_DATA10 LCD Pixel data bit 10
37 LCD_DATA8 LCD Pixel data bit 8
38 LCD_DATA9 LCD Pixel data bit 9
39 LCD_DATA6 LCD Pixel data bit 6
40 LCD_DATA7 LCD Pixel data bit 7
41 LCD_DATA4 LCD Pixel data bit 4
42 LCD_DATA5 LCD Pixel data bit 5
43 LCD_DATA2 LCD Pixel data bit 2
44 LCD_DATA3 LCD Pixel data bit 3
45 LCD_DATA0 LCD Pixel data bit 0
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Pins Definitions Descriptions
46 LCD_DATA1 LCD Pixel data bit 1
3.3 Extended I/O Interface (J2)
Pins Definitions Descriptions
1 GND GND
2 GND GND
3 VDD_3V3B 3.3V
4 VDD_3V3B 3.3V
5 VDD5V 5V
6 VDD5V 5V
7 SYS5V 5V
8 SYS5V 5V
9 NC NC
10 SYS_RESETn Reset
11 USER3 GPIO
12 LED0 GPIO
13 NC NC
14 PWM Power on enable
15 NC NC
16 USER0 GPIO
17 I2C1_SCL IIC3 master serial clock
18 I2C1_SDA IIC serial bidirectional data
19 NC NC
20 LED1 GPIO
21 NC NC
22 NC NC
23 USER2 GPIO
24 USER1 GPIO
25 NC NC
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Pins Definitions Descriptions
26 NC NC
27 NC NC
28 SPI1_CS0 SPI enable 0
29 SPI1_DO SPI data 0
30 SPI1_D1 SPI data 1
31 SPI1_SCLK SPI Clock
32 VDD_ADC ADC power
33 NC NC
34 NC NC
35 NC NC
36 NC NC
37 Y+ Y+ Position Input
38 Y- Y- Position Input
39 X+ X+ Position Input
40 X- X- Position Input
41 NC NC
42 NC NC
43 GND GND
44 GND GND
45 GND GND
46 GND GND
3.4 Keypad Interfaces
Pins Definitions Descriptions
1 USER0 User defined
2 USER1 User defined
3 USER2 User defined
4 USER3 User defined
5 BOOT Boot switch
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3.5 LED Interfaces
Pins Definitions Descriptions
1 USER0 User defined
2 USER1 User defined
Page | 12
4 How to Setup BB-View
A pre-compiled image for BB-View can be downloaded from the element14
website which can be used for demonstration of the board using BeagleBone
& BeagleBone Black. However, there are some preparations such as
installing USB and Ethernet drivers and setting up PuTTY that need to be
done prior to starting the demonstration.
Note:
To download the pre-compiled image for BB-view please visit:
www.element14.com/BeagleBone
4.1 Installing Windows Drivers for the USB Interface
1) BeagleBone boards are supplied with a pre-programmed eMMC with
Angstrom system. Connect the BeagleBone or BeagleBone Black to
the USB interface of your PC using an OTG cable and power on the
board, after the Angstrom system start-up is complete, you can find
a drive named “BEAGLEBONE” under “My Computer”.
2) The New Hardware Wizard should automatically detect the new
hardware and launch a pop-up window as shown below. Select
Install from a list or specific location (Advanced) and click
Next.
Page | 13
Figure 2: Serial Driver Installation Prompt
3) Click Browse as highlighted in the following image and specify the
location of CDCAM folder in the drive BEAGLEBONE and then click
Next to install the driver.
Figure 3: Setting Driver Location
Page | 14
4) The New Hardware Wizard should once again pop up having detected
another aspect of the hardware. As before, select Install from a list
or specific location (Advanced) and click Next when the following
window shows up to install the USB Ethernet driver.
Figure 4: USB Ethernet Driver Installation Prompt
5) Click Browse in the following figure and specify the location of the
RNDIS folder in the drive BEAGLEBONE and then click Next to
install the driver.
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Figure 5: Driver Installation Prompt
4.2 Setting up PuTTY
PuTTY is a virtual terminal which can receive and display the working
information of the BeagleBone or BeagleBone Black. It needs to be
configured on your PC before it can communicate with BeagleBone or
BeagleBone Black. Follow the steps listed below to ensure correct
configuration.
1) Download “putty.exe” (can be downloaded from
www.element14.com/BeagleBone) to your PC and run it to open the
PuTTY Configuration window then configure it as shown below;
Page | 16
Figure 6: PuTTY Configuration Settings
Note:
The Host Name (or IP address) in the above window may need to be changed
according to the IP configuration of the board when power is on. The value in
Figure 6 is the default. In the event the default value is incorrect please refer to
your network documentation for assistance in discovering the IP address of the
device.
Click Open when you finish the configuration
2) Enter your login details as in the following window and press enter
on your keyboard. As default the username is “root” and the
password field should be left empty.
Page | 17
Figure 7: Login to the BeagleBone Black
After logging in successfully, a bash shell environment is activated. All the
shell instructions hereafter are typed and executed under this environment.
Page | 18
5 Demonstration and Compilation of
the TI-SDK
This chapter will introduce how to carry out demonstrations of the display
function of the BB-View using BeagleBone & BeagleBone Black with provided
pre-compiled TI-SDK, as well as how to create Linux development
environment and customise the Linux system.
Note:
Each instruction has been proceeded by a pencil “” to prevent confusion
caused by the long instructions that occupy more than one line in the document.
Please note that there are SPACES in the following instructions; Missing any
SPACE will lead to failure when running an application.
5.1 BB-View Demonstration using a Pre-Compiled Image
Here we will use a pre-compiled & patched TI-SDK image provided for the
BB-View for demonstration purposes. First we need to program the image
into the BeagleBone or BeagleBone Black.
5.1.1 Image Programming
5.1.1.1 For BeagleBone Black
1) Download the “BB-View Pre-Compiled TI-SDK Image.zip” to
get the following image from:
URL: www.element14.com/BeagleBone
*Image Name: “bb-view-emmc-flasher-2013-09-09.img.xz”
*Note: Please use the latest image available for download.
2) Uncompress the TI-SDK image by using 7-zip compression tool
(available from
3) Program the
uncompressed image into a Micro
“
Win32DiskImager
and then insert the card
4) Press
and hold the
BeagleBone Black
5) When all
4 user LEDs stay constantly ON,
image has been programmed into
up to 30-
40min
MicroSD card, and then connect
LCD module
as shown below and power it
Figure 8:
Connecting the BB
Note:
Please ensure the blue tape on the LCD FPC cable is facing up
6)
Follow the instructions shown on the LCD
screen calibration.
(available from
www.element14.com/BeagleBone)
uncompressed image into a Micro
SD card by using
Win32DiskImager
Tool” (from
www.element14.com/BeagleBone
and then insert the card
into the
BeagleBone Black TF card slot.
and hold the
uSD BOOT button
and then power on
BeagleBone Black
(without connecting BB-
View & LCD modul
4 user LEDs stay constantly ON,
this indicates that
image has been programmed into
the
BeagleBone Black
40min
). Please power OFF
the board and remove the
MicroSD card, and then connect
BeagleBone Black
, BB
as shown below and power it
ON again;
Connecting the BB
-View, BeagleBone Black
and the LCD Module
Please ensure the blue tape on the LCD FPC cable is facing up
wards
Follow the instructions shown on the LCD
module
to complete
screen calibration.
Page | 19
SD card by using
the
www.element14.com/BeagleBone
)
BeagleBone Black TF card slot.
and then power on
the
View & LCD modul
e).
this indicates that
the
BeagleBone Black
(it may take
the board and remove the
, BB
-View and an
and the LCD Module
wards
.
to complete
the
Page | 20
5.1.1.2 For BeagleBone
1) Download the “BB-View Pre-Compiled TI-SDK Image.zip” to
get the following image from:
URL: www.element14.com/BeagleBone
*Image Name: “bb-view-mmc-beaglebone-2013-10-16.img.xz”
*Note: Please use the latest image available for download.
2) Uncompress the TI-SDK image by using 7-zip compression tool
(available from www.element14.com/BeagleBone)
3) Program the uncompressed image into a MicroSD card by using the
“Win32DiskImager Tool” (from www.element14.com/BeagleBone)
and then insert the card into the BeagleBone TF card slot.
4) Connect the BeagleBone, BB-View and an LCD module as shown
above and power it ON
5) Follow the instructions shown on the LCD module to complete the
screen calibration.
5.1.2 Setting up a 4.3” LCD Module
The following instructions are executed (in PuTTY) for use of a 4.3-inch LCD
module;
root@am335x-evm:~# echo "optargs=dispmode=4.3inch_LCD" >
/media/mmcblk0p1/uEnv.txt
root@am335x-evm:~# sync
Note:
The system supports 4.3-inch LCD modules by default, and therefore there is no need to
Page | 21
execute these instructions if the default settings haven’t been changed.
Now restart the board to finish the setup for a 4.3-inch LCD module.
5.1.3 Setting up a 7” LCD Module
The following instructions are executed (in PuTTY) for use of a 7-inch LCD
module;
root@am335x-evm:~# echo "optargs=dispmode=7inch_LCD" >
/media/mmcblk0p1/uEnv.txt
root@am335x-evm:~# sync
Now restart the board to finish the setup for a 7-inch LCD module.
Note:
The system uses 4.3-inch as a default display mode, to use 7” display for the
first time just touches the screen for 5 times to skip touchscreen calibration and
enter Linux shell, then use the above commands to configure the display.
If you have calibrated the touch screen, after you change the display mode, you
must execute the following instructions to recalibrate in PuTTY:
root@am335x-evm:~#rm /media/mmcblk0p1/pointercal
root@am335x-evm:~# sync
Now reboot the board and you will be presented with the calibration interface
5.2 Keypad Test
Execute the following instruction then press the user keypad buttons to test
root@am335x-evm:~# hexdump –C -v /dev/input/event1
5.3 LED Test
Turn off LED0:
root@am335x-evm:~# echo 0>
/sys/class/leds/bb-view\:led0/brightness
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Turn on LED0:
root@am335x-evm:~# echo 1>
/sys/class/leds/bb-view\:led0/brightness
Turn off LED1:
root@am335x-evm:~# echo 0>
/sys/class/leds/bb-view\:led1/brightness
Turn on LED1:
root@am335x-evm:~# echo 1>
/sys/class/leds/bb-view\:led1/brightness
5.4 Pre-Compiled TI-SDK Image Features
Figure 9: TI-SDK Main Menu Screen
Page | 23
The provided pre-compiled TI-SDK image contains a wealth of applications
including:
Benchmarks
3D Demo Applications
Internet Browser
WiFi Connection (requires separately available WiFi daughter card)
Bluetooth Connection (requires separately available Bluetooth
daughter card)
Video Decoding & Audio Capture
The TI-SDK also provides several Linux QT based demo applications that
showcase the touch screen functionality of the BB-View. These are discussed
below:
5.4.1 QML Playground
Figure 10: QML Playground Main Menu
This section contains several applications showcasing the features of QT
Quick. The demo applications allow the user to view the source code giving
an insight into how certain features can be used.
Page | 24
5.4.2 Animated Tiles
Figure 11: Animated Tiles Demo Application
The animated tiles demo shows how to animate transitions between five
predefined states.
5.4.3 Thermostat Demo
Figure 12: Thermostat Demo Application
The thermostat demo demonstrates some of the functionalities that would
be available in a home automation system. The demo shows a simple GUI
that can be used to control a thermostat. It also draws weather information
Page | 25
from an online service (internet connection required).
5.4.4 Vector Deformation
Figure 13: Vector Deformation Demo
The vector deformation demo shows how advanced vector techniques can
be used to draw text using a Qpainter path.
5.5 Working With the TI-SDK Image
5.5.1 Setup for Development Environment
Before getting started with system compilation, a development environment
under Linux is required to be built first. (For installation of Linux system,
please refer to Appendix 1 Installing Ubuntu Linux System).
1) Download the “BB-View TI-SDK Source Code.zip” from:
www.element14.com/BeagleBone to the “$HOME” directory and unzip.
From the directory execute the following instruction to install the
development environment;
Ubuntu@Ubuntu:~$ ./ti-sdk-am335x-evm-06.00.00.00-Linux-x8
6-Install --mode console
2) Follow the instructions to finish the installation, and then you’ll find a file
“ti-sdk-am335x-evm-06.00.00.00“ under the $HOME directory.
Page | 26
3) Execute the following command to install “mkimage”.
sudo apt-get install uboot-mkimage
4) Execute the following instruction to define a temporary environment
variable for the compiler in the Ubuntu system.
export
PATH=$HOME/ti-sdk-am335x-evm-06.00.00.00/linux-devkit/sys
roots/i686-arago-linux/usr/bin/:$PATH
Note:
The instruction used to define environment variables can be added into .bashrc
under $HOME so that the system can create the variable automatically when
booting up.
To view the path of compiler, please execute echo $PATH.
Now a development environment has been installed successfully.
5.5.2 Compiling "Uboot" for BB-View
Users have the two options; either they can use the official TISDK provided
by Texas Instruments which needs to be patched first so that it can support
BB-View OR they can use the uboot developed by element14 which already
has been patched to be used with BB-View and ready to use. This section will
introduce both the uboot compilation processes.
5.5.2.1 Compiling "uboot" from Texas Instruments
1) Copy “u-boot-2013.01.01-psp06.00.00.00-bb-view.patch”
from “$HOME” to:
“$HOME/ti-sdk-am335x-evm-06.00.00.00/board-support/”
2) Execute the following instruction to apply a patch to the uboot source
code so that it can be running in eMMC;
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Ubuntu@Ubuntu:~/ti-sdk-am335x-evm-06.00.00.00$ cd
board-support/
$ cd u-boot-2013.01.01-psp06.00.00.00
$ patch -p1
< ../u-boot-2013.01.01-psp06.00.00.00-BB-View.patch
3) Execute the following instruction to compile
$ make CROSS_COMPILE=arm-linux-gnueabihf- ARCH=arm
distclean
$ rm -rf am335x
$ make O=am335x CROSS_COMPILE=arm-linux-gnueabihf- ARCH=arm
am335x_evm
After the compilation is done, the files “MLO” and “u-boot.img” can be
found under “am335x/” of the current directory.
5.5.2.2 Compiling "uboot" from element14
1) Execute the following commands to uncompress the uboot source code
$ cd $HOME
$ tar xvf u-boot-2013.01.01-psp06.00.00.00-bb-view.tar.bz2
2) Execute the following instructions to compile
$ cd $HOME/u-boot-2013.01.01-psp06.00.00.00
$ make CROSS_COMPILE=arm-linux-gnueabihf- ARCH=arm
distclean
$ rm -rf am335x
$ make O=am335x CROSS_COMPILE=arm-linux-gnueabihf- ARCH=arm
am335x_evm
After the compilation is done, the files “MLO” and “u-boot.img” can be
found under “am335x/” of the current directory.
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5.5.3 Compiling "Kernel" for BB-View
There are two options; you can either use the official TISDK provided by
Texas Instruments which needs to be patched first so that it can support
BB-View OR you can use the Linux kernel developed by element14 which has
already been patched for use with the BB-View and is ready to use. This
section will introduce both of the kernel compilation processes.
5.5.3.1 Compiling the "Kernel" from Texas Instruments
1) Copy “linux-3.2.0-psp04.06.00.11-BB-View.patch”
from “$HOME” to
“$HOME/ti-sdk-am335x-evm-06.00.00.00/board-support/”
2) Execute the following instructions to install the patch and then compile
the TI-SDK kernel;
$ cd $HOME/ti-sdk-am335x-evm-06.00.00.00/board-support/
linux-3.2.0-psp04.06.00.11
$ patch –p0 < ../ linux-3.2.0-psp04.06.00.11-BB-View.patch
$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- distclean
$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
am335x_evm_defconfig
$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- uImage
modules
A kernel file named “uImage” with LCD module support is generated under
“arch/arm/boot/”.
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5.5.3.2 Compiling the "Kernel" from element14
Execute the following instructions to unzip the source code and compile the
kernel image;
$ cd $HOME
$ tar xvf linux-3.2.0-psp04.06.00.11-bb-view.tar.bz2
$ cd linux-3.2.0-psp04.06.00.11
$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
distclean
$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
am335x_evm_defconfig
$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- uImage
modules
A kernel file named “uImage” with LCD module support is generated under
“arch/arm/boot/”.
5.5.4 System Update with BB-View Support
1) Format a flash drive or a TF card to FAT32 and mount it under the Ubuntu
Linux system, and then execute the following instructions to copy the
image to the flash drive or TF card. (These instructions assume the flash
drive or TF card is mounted under “/mnt”)
$ cd $HOME
$ cp u-boot-2013.01.01-psp06.00.00.00/am335x/MLO /mnt
$ cp u-boot-2013.01.01-psp06.00.00.00/am335x/u-boot.img
/mnt
$ cp linux-3.2.0-psp04.06.00.11/arch/arm/uImage /mnt
$ mkdir /mnt/rootfs
$ cd $HOME/linux-3.2.0-psp04.06.00.11
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$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
modules_install INSTALL_MOD_PATH=/mnt/rootfs
$ cd /mnt/rootfs
$ tar -czvf ../kernel_modules.tar.gz ./
$ cd /mnt
$ rm –rf rootfs
2) Connect BB-View to the BeagleBone or BeagleBone Black and then
connect the power supply; Insert the flash drive or TF card into the
BeagleBone or BeagleBone Black and execute the following instructions in
PuTTY to update the system image (If a TF card is used instead of a flash
drive, please change the path in the instructions accordingly)
$ cp /media/sda1/MLO /media/mmcblk0p1/
$ cp /media/sda1/u-boot.img /media/mmcblk0p1/
$ cp /media/sda1/uImage /media/mmcblk0p1/
$ tar -xvf /media/sda1/kernel_modules.tar.gz -C /
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6 Demonstration and Compilation of
Angstrom
This chapter will introduce how to carry out demonstrations of the display
functions of BeagleBone Black and BB-View under Angstrom, as well as how
to create a Linux development environment and compile the system.
6.1 Demonstration of the Display Function
6.1.1 Image Programming
1) Use the format tool from HP named “HPUSBFW.exe” to format a flash
drive with the FAT32 file system.
2) Download the “BB-VIEW Angstrom Image.zip” to get following files
from:
URL: www.element14.com/BeagleBone
File Names: am335x-boneblack-lcd4.dtb
am335x-boneblack-lcd7.dtb
am335x-boneblack.dtb
kernel_modules.gz
uImage
Unzip the files and copy all the image files to the flash drive.
3) Connect the flash drive to the BeagleBone Black and power it ON.
4) Execute the following instructions in a terminal program (such as PuTTY)
to mount the flash drive:
$ mkdir /media/udisk
$ mount /dev/sda1 /media/udisk
5) Execute the following instructions to install the image and then restart the
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system;
$ cp -f /media/udisk/uImage /boot/
$ cp -f /media/udisk/*.dtb /boot/
$ tar -xvf /media/udisk/kernel_modules.gz -C /
$ sync
6.1.2 Setup for 4.3” LCD Module
The following instructions are executed in PuTTY for use of 4.3” LCD module:
root@beaglebone:~# cd /boot
root@beaglebone:~# cp am335x-boneblack-lcd4.dtb
am335x-boneblack.dtb
root@beaglebone:~# sync
Now restart the board to finish the setup for 4.3” LCD module.
6.1.3 Setup for 7” LCD Module
The following instructions are executed in PuTTY for use of 7” LCD module;
root@beaglebone:~# cd /boot
root@beaglebone:~# cp am335x-boneblack-lcd7.dtb
am335x-boneblack.dtb
root@beaglebone:~# sync
Now restart the board to finish the setup for 7” LCD module.
Note:
If you have calibrated the touch screen, after you change the display mode, you
must execute the following instructions to recalibrate in PuTTY:
root@beaglebone:~# rm /etc/pointercal.xinput
root@beaglebone:~# sync
Then select System > Administration > Calibrate Touchscreen on the desktop of
Angstrom
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6.2 Keypad Test
Execute the following instruction then press the user keypad buttons to test
root@beaglebone:~# hexdump-C-v /dev/input/event2
6.3 LED Test
Turn off LED0:
root@beaglebone:~# echo 0>
/sys/class/leds/bb-view\:led0/brightness
Turn on LED0:
root@beaglebone:~# echo 1>
/sys/class/leds/bb-view\:led0/brightness
Turn off LED1:
root@beaglebone:~# echo 0>
/sys/class/leds/bb-view\:led1/brightness
Turn on LED1:
root@beaglebone:~# echo 1>
/sys/class/leds/bb-view\:led1/brightness
6.4 Compilation of the Kernel
Users can download the Angstrom kernel source code “BB-VIEW
Angstrom Source Code.zip” from;
www.element14.com/BeagleBone
File name: “bb-black-kernel-3.8.13-bb-view.tar.bz2”
This is enabled with support for BB-View. Please refer to the document
relevant to the BeagleBone Black for the details of kernel compilation and
updating.
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7 Appendix 1: Installing an Ubuntu
Linux System
An appropriate development environment is required for software
development. The CD included with product contains a development
environment which needs to be installed under a Linux environment. If you
are working on a PC running Windows, you have to create a Linux system
first, and then you can install the environment. An easy method for
achieving this is to use virtual machine software such as VirtualBox to install
Ubuntu Linux on an emulated/virtual PC. The following sections will
introduce the installation processes of VirtualBox and an Ubuntu system.
7.1 Installing VirtualBox
You can access http://www.virtualbox.org/wiki/Downloads to download the
latest version of VirtualBox. At the time of writing VirtualBox requires a
minimum of 512MB of RAM to run however 1GB is recommended.
1) The installation process is simple. Start VirtualBox from the Start
menu of Windows, and then click New in the VirtualBox window. A
pop-up window titled “Create New Virtual Machine” will be shown as
below:
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2) Click Next to create a new virtual machine.
3) Enter a name for the new virtual machine and select the operating
system type as shown below:
4) Enter a name in the Name field, e.g. Ubuntu, and select Linux in the
Operating System drop-down menu, and then click next.
5) Allocate memory to the virtual machine and then click Next
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Note:
If your PC has 1GB of RAM or lower, keep the default setting;
If your PC more than 1GB of RAM, you can allocate up to 1/4 to the virtual machine, for
example, 512MB out of 2GB memory could be allocated to virtual machine.
6) If this is the first time you have installed VirtualBox, you need to
select Create new hard disk in the following window, and then click
Next
7) Click Next in the following window
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8) Select Fixed-size storage in the following window and click Next
9) Define where the hard disk data is stored and the default space of the
virtual disk (8GB at least), and then click Next
10) Click Finish in the following window
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11) Your PC will then create a new virtual disk
12) A window with summary of the newly created virtual machine will be
shown as below when the creation process is done. Please click Finish
to complete the whole process.
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7.2 Installing an Ubuntu Linux System
After VirtualBox is installed, we can install the Ubuntu Linux system. Visit
http://www.Ubuntu.com/download/Ubuntu/download to download the ISO
image file of Ubuntu, and then follow the steps below:
1) Start VirtualBox from the Start menu and click Settings on the
VirtualBox window. A Settings window will be shown as below
2) Select Storage on the left in the Settings window and click the CD
icon next to the option Empty under IDC controller in the right part of
the window, and then find the ISO file you downloaded
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3) Select the ISO file you downloaded and click OK as shown below
4) Click Start on the VirtualBox window, the Ubuntu installation
program will start as shown below:
5)
Some prompt windows will pop up during the initiation process. You
just need only click
6) Click
Install Ubuntu
appears
7) Click Forward
to continue the process
Some prompt windows will pop up during the initiation process. You
just need only click
OK all the wa
y to the end of the process.
Install Ubuntu
to start installation when the following window
to continue the process
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Some prompt windows will pop up during the initiation process. You
y to the end of the process.
to start installation when the following window
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8) Select Erase disk and install Ubuntu and click Forward
Note:
Selecting this option will only affect the virtual hard drive you created earlier and will not
lead to any content loss on your hard drive.
9) Click Install Now in the following window to start installation:
10)
Some simple questions need to be answered during the installation
process. Please enter
The following window is the last question that will appear during the
process:
11)
After all the required information is properly entered in to the f
select
Log in automatically
12)
The installation of Ubuntu may take between 15 minutes to an hour
depending on your PC’s specification. A prompt window will be shown
as below after installation is done. Please select
re
start Ubuntu system.
Some simple questions need to be answered during the installation
process. Please enter
appropriate information and click “
The following window is the last question that will appear during the
After all the required information is properly entered in to the f
Log in automatically
and click forward.
The installation of Ubuntu may take between 15 minutes to an hour
depending on your PC’s specification. A prompt window will be shown
as below after installation is done. Please select
Restart Now
start Ubuntu system.
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Some simple questions need to be answered during the installation
appropriate information and click “
Forward”.
The following window is the last question that will appear during the
After all the required information is properly entered in to the f
ields,
The installation of Ubuntu may take between 15 minutes to an hour
depending on your PC’s specification. A prompt window will be shown
Restart Now
to
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13) The Ubuntu system is ready for use after restarting. Normally the
ISO file shown below will be ejected automatically by VirtualBox after
restarting Ubuntu. If it is not, you can eject the ISO file manually in
the Settings window of VirtualBox. The following window shows the
settings window after the ISO file is ejected.
