Texas Instruments OMAP-L138/C6748 Bedienungsanleitung

SPRUIL2A–February 2019–Revised September 2019

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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Introduction

SPRUIL2A–February 2019–Revised September 2019

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)

Introduction

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OMAP-L138/C6748 Low-Cost Development Kit (LCDK)

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

www.ti.com

Included in the Box

SPRUIL2A–February 2019–Revised September 2019

OMAP-L138/C6748 Low-Cost Development Kit (LCDK)

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.

Setting up the OMAP-L138/C6748 Development Kit (LCDK)

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OMAP-L138/C6748 Low-Cost Development Kit (LCDK)

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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Setting up the OMAP-L138/C6748 Development Kit (LCDK)

SPRUIL2A–February 2019–Revised September 2019

OMAP-L138/C6748 Low-Cost Development Kit (LCDK)

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

Setting up the OMAP-L138/C6748 Development Kit (LCDK)

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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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Setting up the OMAP-L138/C6748 Development Kit (LCDK)

SPRUIL2A–February 2019–Revised September 2019

OMAP-L138/C6748 Low-Cost Development Kit (LCDK)

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.

Setting up the OMAP-L138/C6748 Development Kit (LCDK)

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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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