Texas Instruments Jacinto 7 User manual

Jacinto™7 EVM Quick Start Guide
for DRA821 Processor

Jacinto™ 7 EVM Quick Start Guide
for DRA821 Processor
2Texas Instruments
Welcome to the Jacinto™ 7 EVM Quick Start Guide for DRA821 Processor.
This guide will help you begin your evaluation quickly by covering the following topics:
Step 1: Setup EVM and expansion card hardware.
Step 2: Experiencing the Out Of Box (OOB) demonstration to ensure the EVM hardware is functional.
Step 3: Download and install Processor SDK (software development kit).

Jacinto™ 7 EVM Quick Start Guide
for DRA821 Processor
3Texas Instruments
System Power Input
Power
Switch
Power LEDs
Configuration Switches
User Buttons
DisplayPort
USB Type C
USB2 Type A
PCIe Gen 3
Audio In/Out Ethernet
Ethernet
USB/Serial Debug
XDS110 /
Emulator
SOM Board
Connectors
Expansion
Capture Expansion PCIe M.2 SSD microSD
Common processor board highlights
Step 1: Setup EVM and expansion card hardware
The minimum conguration of the Jacinto 7 EVM includes the common processor board and a
system-on-module (SOM) board. Each board ships separately.
• The common processor board provides basic connectivity to I/O, JTAG and various available
expansion boards.
• The SOM includes the DRA821 processor you are going to evaluate, as well as power management
and external memory.
Note: Some interfaces may be unavailable depending on the SOM you attach to the common processor board.
System-On-Module highlights

Jacinto™ 7 EVM Quick Start Guide
for DRA821 Processor
4Texas Instruments
13
24
Remove mounting screws (4) from Common Processor
board (sold separately). The screws are shipped
installed in jack-screws. If existing SOM module is
already mounted, use Allen wrench (supplied with
SOM) to eject SOM module by inserting the wrench
into each jack-screw and turning counter-clockwise at
each location until SOM module is loose.
Install the SOM module on the Common Processor
Board. Ensure it is oriented such that all connectors
are aligned. Press rmly on the edges to ensure
the connectors mate (may have to apply signicant
pressure).
Before installing new SOM, make sure all jack-screws
are tight by inserting the wrench and turning clockwise
at each location.
Install mounting screws (4x) in each corner of the
SOM. Tighten each screw to ensure all connectors
are fully mated. Don’t over-tighten.
Attaching the SOM to the common processor board
Mounting screws (4x)
Common
processor board
Jack-screws (4x)
SOM module

Jacinto™ 7 EVM Quick Start Guide
for DRA821 Processor
5Texas Instruments
7Conrm the boot conguration switches SW8 and
SW9 are set as shown.
5
6
Insert the supplied Linux SD card into the Micro
SD card slot. The location of the card slot is on
the backside of the Common Processor Board.
Connect the supplied USB cable to the USB/Serial
Debug connector as shown. Connect other end to PC.
Launch a terminal program (ex. TeraTerm) and connect
to rst of four UARTs that are assigned to USB port. Set
terminal to operate at Baud 115200, 8b no parity, and
ow control off.
8Connect a +12 VDC power supply (not included) with
minimum output rating of 5 Amp, positive inner and
negative outer terminals, female barrel 5.5 mm x 2.5
mm. Recommended power supply is CUI Inc. SDI65-
12-U-P6 or equivalent.
9To turn EVM system on, set switch SW2 to
the ‘ON’ position. To turn EVM off, set switch
SW2 to ‘OFF’.
switch direction
setting
+12 VDC power
supply cable

Jacinto™ 7 EVM Quick Start Guide
for DRA821 Processor
6Texas Instruments
Attaching an optional expansion card
Expansion cards can be added to the common processor board to expand the capabilities
of the EVM.
• Automotive Gateway/Ethernet Switch /Industrial Expansion card: this card adds ports for
CAN-FD, Gigibit Ethernet and industrial Ethernet protocols. (Installation instructions are covered in the
Appendix)
Step 2: Experiencing the Out Of Box (OOB)
demonstration to ensure the EVM hardware is
functional
1. To turn on the EVM, move the SW2 switch to the ‘ON’ position, as shown in Step 1, #9 above.
2. Within seconds, you should see the linux uboot and kernel boot log on the PC terminal application
you setup in Step 1, #6 above.
3. When the boot completed, type “root” at the prompt to login and have access to the linux
lesystem.
Step 3: Download and install Processor SDK
(software development kit)
Processor SDK RTOS (PSDK RTOS) and Processor SDK Linux (PSDK Linux) together form a
multi-processor software development platform for the Texas Instruments Jacinto 7 family of SOCs.
The SDK provides a comprehensive set of software tools and components to help users develop and
deploy their applications on supported Jacinto processors.
Processor SDK installation instructions are available online:
Processor SDK RTOS: www.ti.com/DRA821PSDKRTOSInstall
Processor SDK Linux: www.ti.com/DRA821PSDKLinuxInstall
From these links, you can learn how to install the SDK, modify, build, load, and debug the released
software on the EVM.

Jacinto™ 7 EVM Quick Start Guide
for DRA821 Processor
7Texas Instruments
Congratulations! This completes your Quick Start experience.
Additional resources
Now that your EVM is setup and validated, you can continue your evaluation by getting additional
support, accessing additional training and exploring further development options with the following
resources:
• Support: www.ti.com/Jacinto7Support
• Training: www.ti.com/Jacinto7Training
• Development: ww.ti.com/DRA821Development

Jacinto™ 7 EVM Quick Start Guide
for DRA821 Processor
8Texas Instruments
Appendix A: Installing the Automotive Gateway/
Ethernet Switch/Industrial Expansion card onto the
common processor board
1. Remove the stand-offs (8x) from the EVM. Mate the expansion card to the common processor board
expansion connectors (see bottom left).
2. Press rmly on the edges to ensure the connectors mate (may have to apply signicant pressure).
3. If a CSI expansion board is not connected to the CSI expansion connectors on the common
processor board, add a 2mm thick washer to each of the four stand-offs (see bottom right) on the
common processor board. Washers are included in the kit.
4. Re-install the eight stand-offs.
Washer
Stand-off
EVM Expansion
Connectors
CSI Expansion
Connectors
Front view Side view
190.5 ±0.5
82.2 ±0.5

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For more information on DRA821 processor including:
• User Guide • Software
• How Tos • Design Files
Please visit www.ti.com/jacinto
For support questions, please contact: [email protected] or ti.com/e2e

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