Texas Instruments OMAP-L137/C6747 User manual

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OMAP-L138/C6748 Low-Cost Development Kit (LCDK)
User's Guide
SPRUIL2A–February 2019–Revised September 2019
OMAP-L138/C6748 Low-Cost Development Kit (LCDK)
The OMAP-L138/C6748 Low-Cost Development Kit (LCDK) is a complete hardware and software
reference design for Analytics, Biometrics, Audio, and so forth. This user guide documents the hardware
of the LCDK and enables more collaboration, project sharing and knowledge exchanges.
Contents
1 Introduction ................................................................................................................... 3
2 Included in the Box .......................................................................................................... 5
3 Setting up the OMAP-L138/C6748 Development Kit (LCDK).......................................................... 6
4 LCDK Features ............................................................................................................. 11
5 Power Sequencing......................................................................................................... 12
6 Online Resources .......................................................................................................... 12
7 Projects...................................................................................................................... 13
8 Support ...................................................................................................................... 13
9 References.................................................................................................................. 13
List of Figures
1 LCDK Block Diagram........................................................................................................ 4
2 LCDK Hardware Features.................................................................................................. 6
3 SW1 Settings................................................................................................................. 8
4 UART-to-USB Port .......................................................................................................... 8
5 Tera Term Port Selection................................................................................................... 8
6 Tera Term Baud Rate Selection........................................................................................... 9
7 Face Detect Demo Connections........................................................................................... 9
8 Face Detect Demo Status Window ...................................................................................... 10
List of Tables
1 Resources and Training .................................................................................................... 4
2 Tools........................................................................................................................... 5
3 Included Devices............................................................................................................. 5
4 Software Downloads ........................................................................................................ 5
5 Switches 1-4 on SW1 ....................................................................................................... 6
6 Switches 5-8 on SW1 ....................................................................................................... 6
7 Push Buttons................................................................................................................. 7
8 LEDs........................................................................................................................... 7
9 Video DAC ................................................................................................................. 11
10 Video Decoder ............................................................................................................. 11
11 NAND Flash ................................................................................................................ 11
12 DDR2 SDRAM ............................................................................................................. 11
13 Ethernet PHY .............................................................................................................. 11
14 LCD Connector ............................................................................................................ 12
15 LCDK Board Revision History ............................................................................................ 12

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Trademarks
Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
All other trademarks are the property of their respective owners.

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OMAP-L138/C6748 Low-Cost Development Kit (LCDK)
1 Introduction
The LCDK is an easy-to-use, affordable and scalable introduction to the world of TI's C6000 DSP value
line family. Beginners and experienced users alike can use the kit to create low-power and low-cost
solutions for biometrics, analytics, audio, and communications.
TI provides two variants of LCDK, LCDK6748 for DSP only developers and LCDKL138 for Arm®and DSP
developers.
For more information, see the following:
•OMAPL138 LCDK
•C6748 LCDK
1.1 Features
• TI TMS320C6748 DSP or OMAP-L138 Application Processor
• 456-MHz C674x Fixed/Floating Point DSP
• 456-MHz ARM926EJ RISC CPU (OMAP-L138 only)
• On-Chip RTC
• 128 MByte DDR2 SDRAM running at 150 MHz
• 128 MByte 16-bit wide NAND FLASH
• 1 Micro SD/MMC Slot
• One mini-USB Serial Port (on-board serial to USB)
• One Fast Ethernet Port (10/100 Mbps) with status LEDs
• One USB Host port (USB 1.1)
• One mini-USB on the go (OTG) port (USB 2.0)
• One SATA Port (3Gbps)
• One VGA Port (15 pin D-SUB)
• One LCD Port (Beagleboard XM connectors)
• One Composite Video Input (RCA Jack)
• One Leopard Imaging Camera Sensor Input (36-pin ZIP connector)
• Three AUDIO Ports (1 LINE IN and 1 LINE OUT and 1 MIC IN)
• 14-pin JTAG header (No onboard emulator; external emulator is required)

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Figure 1. LCDK Block Diagram
NOTE: • The LCDK does not have an onboard emulator. An external emulator from TI or a third-
party will be required.
• The LCD port connector was designed to support an off-the-shelf LCD panel that is no
longer available from any vendor. We are not aware of any other off the shelf LCD panel
that will work with LCDK. You need to create your own adapter board in order to
evaluate an LCD panel using the LCDK board.
1.2 Getting Started
Table 1. Resources and Training
Steps to Get Started TMDSLCDK6748 TMDSLCDK138
Take a tour of the hardware Introduction to TMDSLCDK6748 Introduction to TMDSLCDKL138
Run out of the box demo Video Training Video training
Software download Processor SDK OMAPL138 Processor SDK OMAPL138
Hardware setup TMDSLCDK6748 Hardware setup TMDSLCDKL138 Hardware Setup
RTOS software setup Processor SDK RTOS Getting Started Guide
OMAP-L138/C6748 LCDK Hardware Setup with CCS
Linux softwaresetup Not applicable Processor SDK Linux Getting Started Guide

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Table 2. Tools
Tool Order Today
LCDK C6748-LCDK
OMAP-L138 LCDK
Emulators XDS100
Visit the online TI store for an up-to-date list of available
emulators. XDS200
XDS510
XDS560
XDS110 - Supported on C6748 LCDK ONLY
NOTE: • Distributor prices may vary
Table 3. Included Devices
Included Devices Description Documentation
TMS320C6748 TMS320C6748 Fixed/Floating Point DSP TMS320C6748™ Fixed- and Floating-Point
DSP Data Sheet
OMAPL138 OMAPL138 DSP+ARM9 Processor OMAP-L138 C6000™ DSP+ ARM®
Processor Data Sheet
Table 4. Software Downloads (1)
Compiler/Debugger (IDE) Download Now!
Code Composer Studio (CCS) Download Now (Requires TI Login)
Processor SDK (Latest) Download Now (Requires TI Login)
(1) For the latest version of CCS and SDK, see the Processor SDK RTOS and Linux release notes.
2 Included in the Box
2.1 OMAP-L138/C6748 Low-Cost Development Kit Contents
• LCDK development board
• Mini A/B USB cable
• Micro SD card with SD-adapter
• Quick start guide
2.2 Development Support
The OMAP-L138/C6748 LCDK boards are supported under Processor SDK RTOS.
2.3 Embedded Linux Application Development Support
The Linux Software development kit (available only with the OMAP-L138 LCDK) is included to help jump
start the Linux application development with the latest open source kernel running on the ARM9 core of
OMAP-L138. Linux-based DSP tools are provided with the kit as well to enable programming of the C674
DSP core.

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3 Setting up the OMAP-L138/C6748 Development Kit (LCDK)
Figure 2. LCDK Hardware Features
3.1 User Interface
Switches 1-4 on SW1 are used to set the BOOT mode, as described in Table 5.
Table 5. Switches 1-4 on SW1
Switch Number UART2 NAND 16 MMC/SD0
1 OFF OFF OFF
2 ON ON OFF
3 OFF ON OFF
4 ON ON ON
Switches 5-8 on SW1 are user switches connected to GPIOs, as described in Table 6. When the switch is
ON, the pin is pulled low. When the switch is OFF, the pin is pulled high.
Table 6. Switches 5-8 on SW1
Switch Number Pin
5 GPIO0[1]
6 GPIO0[2]
7 GPIO0[3]
8 GPIO0[4]

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3.1.1 Push Buttons
There are three push buttons on the board connected, as described in Table 7. When a button is pressed,
the attached signal is pulled low; otherwise it is pulled high.
Table 7. Push Buttons
Switch Number Pin
S1 Reset
S2 GPIO2[4]
S3 GPIO2[5]
3.1.2 LEDs
There are seven LEDs on the board which function, as described in Table 8.
Table 8. LEDs
LED Signal Lit when...
D1 5V_IN 5 V is applied to J1
D2 VOLT_ERR Input voltage is > 5.8 V
D3 VCC_5VD_IN Board is powered from either J1 or USB
D4 GPIO6[13] Signal is high
D5 GPIO6[12] Signal is high
D6 GPIO2[12] Signal is high
D7 GPIO0[9] Signal is high
3.1.3 Power
The board can be powered with 5 V input through the J1 barrel connector.
3.1.4 USB-to-UART Port (J3)
The board features FD232 USB UART IC, which acts an external serial port. It is connected to the OMAP-
L138/C6748 UART2 peripheral.
Windows and Linux drivers for the chip can be found on the FTDI product page.
3.2 Setup the Out of the Box Demonstration on LCDK
The LCDK provides a quick start guide in the packaging that walks users through the hardware setup to
run the out of the box demonstration that is programed in the flash or on the SD card included in the kit.
Please follow the instruction in the quick start guide to setup the demonstration. The Quick start guide is
also available to access online on ti.com in URLs provided below:
•TMSLCDK6748 Quick Start Guide
•OMAP-L138 DSP+ARM9™ Development Kit (LCDK) Quick Start Guide

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3.3 Initial Setup
The following steps describe the initial setup of the LCDK:
1. Set DIP switch SW1 as shown in Figure 3:
a. Positions 2, 3, and 4 ON
b. Positions 1, 5, 6, 7, and 8 OFF
Figure 3. SW1 Settings
2. Connect the supplied mini USB cable to J3 on the LCDK, as shown in Figure 4. Connect the other end
of the cable to a USB port on your host computer.
Figure 4. UART-to-USB Port
3. Open a serial port terminal (Tera Term) on the host computer and select the connection to the USB
serial port.
Figure 5. Tera Term Port Selection

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4. Configure the serial port as shown in Figure 5.
a. Select the COM port that corresponds to the USB device.
b. Baud rate: 115200
c. Data: 8 bit
d. Parity: none
e. Stop: 1 bit
NOTE: To do this in Tera Term, go to Setup →Serial port.
Figure 6. Tera Term Baud Rate Selection
5. Power the board up.
3.4 Running the Face Detect Demo
1. To run the Face Detect demo, external hardware is needed.
a. Connect the composite camera input at J6 on the composite video input port.
b. Connect the composite display out at J4 on the composite video out port.
Figure 7. Face Detect Demo Connections
2. Run the Face Detect demo. In less than 10 seconds, Tera Term will display output indicating that the
demo is running.

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3. The system continues capturing the number of detected objects in each frame and displays its status
as shown in Figure 8.
Figure 8. Face Detect Demo Status Window
The Face detect demo is based of older Legacy BIOS C6SDK software that is no longer supported. For
reference to this software baseline, see the collateral and software at http://www.ti.com/tool/BIOSSW-
C6748.
The BIO C6SDK installer is provided on the SD card. Start your development with the BIOS C6SDK for
C6748 users by installing the SDK executable. Install the Code Composer Studio Integrated Development
Environment and Code Gen Tools before installing the C6SDK installer. For details on starting the
development, see the user's guide that is provided with the BIOS C6SDK.
NOTE: The Processor SDK baseline is the only supported and actively maintained software baseline
for these devices. TI strongly urges users to begin with Processor SDK for new development.
3.5 Procedure to Flash and Boot the LCDK
The NAND may be flashed either through the USB-serial port or through CCS. The software provided in
the following application note provides both tools.
OMAPL138/C6748 ROM Bootloader Resources and FAQ
The following AISgen config file has the correct settings for NAND16 boot, with the CPU running at 300
MHz, and DDR2 at 150 MHz.
•LCDK AISgen Config
• Serial Port Method
1. Determine what serial port is assigned to the on-board UART->USB IC as show in Section 3.1.4.
2. Set the boot pins to UART2 boot mode as shown in Section 3.1.
3. Perform the following actions, where "COMx" refers to the COM port found in the previous step
(COM8). For C6748 boards, replace "OMAPL138_LCDK" with "C6748_LCDK".
a. Erase the entire NAND (optional):
sfh_OMAP-L138.exe -targettype OMAPL138_LCDK -flashtype NAND -p COMx -erase
b. Flash bootable AIS image (ais_image.bin) to block 1 of the NAND
sfh_OMAP-L138.exe -targettype OMAPL138_LCDK -flashtype NAND -p COMx -
flash_noubl ais_image.bin
Run the commands and then power cycle or reset the board to initiate the process.
c. CCS Method

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4. SD/MMC Flashing
a. Connect to the Arm or DSP with the GEL file loaded, which auto-initializes the DDR.
b. Open (CCS3) or import (CCS4, CCS5) the NANDWriter_ARM or the NANDWriter_DSP project.
c. Modify the #define "NANDWIDTH_8" to "#define NANDWIDTH_16" in nandwriter.c.
d. Rebuild and run the code.
For more information, see the OMAPL138/C6748 ROM Bootloader Resources and FAQ
4 LCDK Features
4.1 Video
Table 9. Video DAC
Component U13
Part Number THS8135PFP
Data Sheet SLAS343
Description Texas Instruments 10-bit Video DAC
Table 10. Video Decoder
Component U21
Part Number TVP5147M1PFP
Data Sheet SLES099
Description Texas Instruments 10-bit Digital Video Decoder
4.2 Memory
Table 11. NAND Flash
Component U18
Part Number MT29F4G16ABADAH4-IT:D
Data Sheet 4Gb, 8Gb, 16Gb: x8, x16 ECC NAND M60A Data Sheet
Description Micron 4Gbit NAND Flash (x16 data width)
Table 12. DDR2 SDRAM
Component U17
Part Number W971GG6KB-25
Data Sheet WBNDS03072-1
Description Micron 4Gbit NAND Flash (x16 data width)
4.3 Connectivity
Table 13. Ethernet PHY
Component U23
Part Number LAN8710A-EZK
Data Sheet Microchip
Description Micron 4Gbit NAND Flash (x16 data width)

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4.4 LCD Connector
Table 14. LCD Connector
Component Description
P1, P2 Provide connectivity to CircuitCo ULCD7 Lite LCD
5 Power Sequencing
NOTE: To keep the cost low, the OMAP-L138/C6748 LCDK has not followed the right power
sequencing recommended by OMAP-L138/C6748 data sheet. The designer needs to
implement the right power sequencing for reliable operation. For details, see the following
documents.
•OMAPL138
•TMS320C6748
6 Online Resources
6.1 C6748/ OMAP-L138 Product Information
•TMS320C6748 Data Sheets, Silicon Errata and Technical Reference Manuals
•OMAP-L138 Data Sheets, Silicon Errata and Technical Reference Manuals
6.2 LCDK Hardware and Software Documentation
6.2.1 LCDK Board Revision History
Table 15. LCDK Board Revision History
S.NO Board Name Board Revision Silicon Revision Status Major Changes
1 TMDXLCDK138/6748 A5 PG2.1 or Older Obsolete Finger print sensor
available (U26)
2 TMDXLCDK138/6748 A6A PG2.1 or older Obsolete Finger print sensor
(U26
Depopulated),Samsu
ng K4T1G164QF-
BCF8 (U17)-DDR2
3 TMDSLCDK138/6748 A7A PG2.3 Active Finger print sensor
(U26
Depopulated),Winbon
d W971GG6KB-25
(U17)-DDR2)
6.3 CCS XML and GEL Files
• Latest GEL files for LCDK Board are included as part of CCSv6.0 and later versions.
• CCS4 and higher contain configuration XML files and GEL files for initializing the DDR interface|
Download Now
NOTE: GEL files and XML files are included in current CCS releases by default and it is not required
to download explicitly to setup a connection for the board.
6.4 Hardware Setup With CCS
•EVM Hardware Setup

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6.5 Software
•Processor SDK for OMAPL138 Processors for Linux and TI-RTOS Support
7 Projects
7.1 Finger Printing Demonstration
C6748 LCDK comes with preprogrammed Flashed demos. Authentec finger print sensor mounted on the
board is capable of sensing finger with 100% accuracy. The finger print demo provides flexibility to create
multiple finger selection for different users by swipe sensor technology. The finger prints are matched in
fraction of seconds. Enrollment for each user is completed in four steps and it takes fraction of a second to
match the finger print on 300 MHz on the C674x floating point DSP. This demo is also 100% percent
accurate for results and has an easy connection to the PC for running the demo and viewing the results.
NOTE: This demo can be recreated only on initial versions of LCDK that were populated with the
fingerprint sensor.
7.2 Face Detection Demonstartion
Second pre flashed demonstration is Face Detection. This demo supports frontal face detection by using
an OpenCV based Haar detect object algorithm. The demo can detect multiple faces in a frame and uses
a composite camera to capture and VGA to display the image. The demo also supports D1(720x480)
resolution image processing and real time video capture and display This requires additional hardware to
be connected to the board to take VGA capture through composite camera interface and output is
displayed on the VGA display connected to the VGA port.
The above demonstrations comes with the C6748 BIOS C6 Software development Kit with the source
code of the projects.
NOTE: The demo code is provided as part of the C6BIOS SDK. The DSP compiled version of
OpenCV libraries are provided only in object code.
8 Support
For community support, visit: www.ti.com/e2e.
9 References
•OMAP-L138 Development Kit (LCDK)
•TMS320C6748 DSP Development Kit (LCDK)
• Texas Instruments: OMAP-L138 DSP+ARM9™ Development Kit (LCDK) Quick Start Guide
• Texas Instruments: C6748 Development Kit (LCDK) Quick Start Guide

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Revision History
Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (February 2019) to A Revision .................................................................................................. Page
• Update was made in the Abstract....................................................................................................... 1
• Update was made in Table 2............................................................................................................ 5
• New section was added - Section 3.1.................................................................................................. 6
• New section was added - Section 3.1.3................................................................................................ 7
• New section was added - Section 3.2.................................................................................................. 7
• New section was added - Section 3.3.................................................................................................. 8
• New section was added - Section 3.4.................................................................................................. 9
• New section was added - Section 3.5................................................................................................. 10
• New section was added - Section 7................................................................................................... 13

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