Connect Tech Sprocket Carrier User manual

Sprocket Carrier for NVIDIA® Jetson™
TX2/TX2i/TX1
Users Guide
Connect Tech Inc. Tel: [phone]
42 Arrow Road Toll: 800-426-8979 (North America only)
Guelph, Ontario Fax: [phone]
N1K 1S6 Email: [e-mail]
www.connecttech.com [e-mail]
Sprocket User Manual CTIM-00152 Revision 0.10 2019/04/01

Sprocket Carrier for NVIDIA® Jetson™ TX2/TX2i/TX1
Users Guide
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Table of Contents
Table of Contents...................................................................................................................................2
Preface...................................................................................................................................................3
Disclaimer .......................................................................................................................................................3
Customer Support Overview...........................................................................................................................3
Contact Information ........................................................................................................................................3
Limited Product Warranty...............................................................................................................................4
Copyright Notice.............................................................................................................................................4
Trademark Acknowledgment..........................................................................................................................4
ESD Warning ..................................................................................................................................................5
Revision History ....................................................................................................................................5
Introduction...........................................................................................................................................6
Product Features and Specifications ......................................................................................................6
Product Overview..................................................................................................................................7
Block Diagram ................................................................................................................................................7
Connector Locations –Top Side.....................................................................................................................8
Connector Locations –Bottom Side (Single sided assembly –No components on Bottom)...........................9
Connector Summary......................................................................................................................................10
Switch Summary...........................................................................................................................................10
Detailed Feature Description................................................................................................................11
Jetson™ TX2/TX2i/TX1 Board-to-Board Connector...................................................................................11
MIPI CSI-2 Camera Input .............................................................................................................................12
GPIO/Serial/I2C............................................................................................................................................13
USB OTG......................................................................................................................................................14
USB OTG –Host Mode .....................................................................................................................14
USB 2.0 OTG Client Mode (Used for Image Flashing) .....................................................................14
Power Input...................................................................................................................................................15
Auto Start............................................................................................................................................16
Switch Description...............................................................................................................................16
S1 Push Button Switch –Reset .....................................................................................................................16
S2 Push Button Switch –Force Recover.......................................................................................................16
S3 Push Button Switch –Power Button........................................................................................................16
Typical Installation..............................................................................................................................17
On-Board Indicator LEDs ...................................................................................................................18
Current Consumption Details ..............................................................................................................18
Software / BSP Details .........................................................................................................................19
Connect Tech’s Custom L4T BSP (CTI-L4T) ..............................................................................................19
NVIDIA Jetpack for L4T ..............................................................................................................................19
Force USB Recovery Mode ..........................................................................................................................19
Thermal Details ...................................................................................................................................20
Mechanical Details...............................................................................................................................21
Top View.......................................................................................................................................................21

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Cables and Cable Kit information........................................................................................................22
3rd Party Accessories .....................................................................................................................................22
Preface
Disclaimer
The information contained within this user’s guide, including but not limited to any product specification, is
subject to change without notice.
Connect Tech assumes no liability for any damages incurred directly or indirectly from any technical or
typographical errors or omissions contained herein or for discrepancies between the product and the user’s
guide.
Customer Support Overview
If you experience difficulties after reading the manual and/or using the product, contact the Connect Tech
reseller from which you purchased the product. In most cases the reseller can help you with product installation
and difficulties.
In the event that the reseller is unable to resolve your problem, our highly-qualified support staff can assist
you. Our support section is available 24 hours a day, 7 days a week on our website at:
http://connecttech.com/support/. See the contact information section below for more information on how to
contact us directly. Our technical support is always free.
Contact Information
Mail/Courier
Connect Tech Inc.
Technical Support
42 Arrow Road
Guelph, Ontario
Canada N1K 1S6
Email/Internet
[email protected]m
[email protected]m
www.connecttech.com
Note:
Please go to the Connect Tech Resource Center for product manuals, installation guides, device drivers,
BSPs and technical tips. Submit your technical support questions to our support engineers.
Telephone/Facsimile
Technical Support representatives are ready to answer your call Monday through Friday, from 8:30 a.m. to
5:00 p.m. Eastern Standard Time. Our numbers for calls are:
Toll Free: 800-426-8979 (North America only)
Telephone: [phone] (Live assistance available 8:30 a.m. to 5:00 p.m. EST, Monday to Friday)
Facsimile: 519-836-4878 (on-line 24 hours)

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Limited Product Warranty
Connect Tech Inc. provides a one year Warranty for the Sprocket Carrier. Should this product, in Connect
Tech Inc.'s opinion, fail to be in good working order during the warranty period, Connect Tech Inc. will, at its
option, repair or replace this product at no charge, provided that the product has not been subjected to abuse,
misuse, accident, disaster or non-Connect Tech Inc. authorized modification or repair.
You may obtain warranty service by delivering this product to an authorized Connect Tech Inc. business
partner or to Connect Tech Inc. along with proof of purchase. Product returned to Connect Tech Inc. must be
pre-authorized by Connect Tech Inc. with an RMA (Return Material Authorization) number marked on the
outside of the package and sent prepaid, insured and packaged for safe shipment. Connect Tech Inc. will
return this product by prepaid ground shipment service.
The Connect Tech Inc. Limited Warranty is only valid over the serviceable life of the product. This is defined
as the period during which all components are available. Should the product prove to be irreparable, Connect
Tech Inc. reserves the right to substitute an equivalent product if available or to retract the Warranty if no
replacement is available.
The above warranty is the only warranty authorized by Connect Tech Inc. Under no circumstances will
Connect Tech Inc. be liable in any way for any damages, including any lost profits, lost savings or other
incidental or consequential damages arising out of the use of, or inability to use, such product.
Copyright Notice
The information contained in this document is subject to change without notice. Connect Tech Inc. shall not
be liable for errors contained herein or for incidental consequential damages in connection with the furnishing,
performance, or use of this material. This document contains proprietary information that is protected by
copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated to
another language without the prior written consent of Connect Tech, Inc.
Copyright

2019 by Connect Tech, Inc.
Trademark Acknowledgment
Connect Tech, Inc. acknowledges all trademarks, registered trademarks and/or copyrights referred to in this
document as the property of their respective owners. Not listing all possible trademarks or copyright
acknowledgments does not constitute a lack of acknowledgment to the rightful owners of the trademarks and
copyrights mentioned in this document.

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ESD Warning
Electronic components and circuits are sensitive to
ElectroStatic Discharge (ESD). When handling any circuit
board assemblies including Connect Tech carrier
assemblies, it is recommended that ESD safety
precautions be observed. ESD safe best practices include,
but are not limited to:
Leaving circuit boards in their antistatic packaging
until they are ready to be installed.
Using a grounded wrist strap when handling circuit
boards, at a minimum you should touch a grounded
metal object to dissipate any static charge that may be
present on you.
Only handling circuit boards in ESD safe areas, which
may include ESD floor and table mats, wrist strap
stations and ESD safe lab coats.
Avoiding handling circuit boards in carpeted areas.
Try to handle the board by the edges, avoiding contact
with components.
Revision History
Revision
Date
Changes
0.00
2017/03/15
Initial Release
0.01
2017/05/02
-Updated Cable Kit information
- Added pinout for P2 connector
0.02
2017/05/5
- Updated cover page picture
- Updated Cable Kit information
- Added important notes on power supply kits for NA and EU
0.03
2017/05/24
- Added important notes on power supply kit: Now we will only
have one multi-region kit instead of Multiple region-specific kits
0.04
2017/05/25
-Changed Sprocket kits two different kits again: one North
American and second Multi-region
-updated Cables and accessories table with 3rd party accessories
0.05
2017/06/21
-added crimp info for essential cables
-added important note under ‘Typical Installation’ section for
using serial console using TTL to USB serial cables
-updated description for CBG252 in ‘cables and Kit information
table’
- added observed maximum current consumption details
0.06
2018/03/08
Added GPIO KDB link
0.07
2018/04/25
Added BSP information
0.08
2018/07/31
Added TX2i compatibility
0.09
2019/02/15
Added TX2i Power Circuitry Note
0.10
2019/04/01
Corrected power consumption figures

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Introduction
Connect Tech’s Sprocket Carrier for NVIDIA® Jetson™ TX2/TX2i/TX1 is designed to match the NVIDIA
Jetson module form factor. The Sprocket’s design includes 1x USB OTG, 1 x4 lane MIPI CSI-2, 2x 3.3V
UART, 2x I2C, and 4x GPIO.
This design provides our smallest and lowest profile solution yet. The Sprocket and Jetson TX2, TX2i or TX1
stack can be mounted flat in the smallest of spaces, perfect for space constrained payloads such as that of a
drone.
Product Features and Specifications
Feature
Sprocket Carrier for NVIDIA Jetson TX2/TX1
Module Compatibility
NVIDIA Jetson TX2, NVIDIA Jetson TX2i, NVIDIA Jetson TX1
GPU
Jetson TX2/TX2i:
-NVIDIA Pascal™, 256 CUDA cores (Up to 1.3 GHz)
Jetson TX1:
-NVIDIA Maxwell™, 256 CUDA cores (998 MHz)
CPU
Jetson TX2/TX2i:
-HMP Dual Denver 2/2MB L2 + Quad ARM® A57/2MB L2
Jetson TX1:
-Quad ARM® A57/2MB L2
Dimensions
87mm x 50mm (3.425” x 1.968”)
Single-sided assembly, all components fit “under” the module – for slimmest
design possible in Z-axis
Video Input
1 x MIPI CSI-2 Input
x4 or x2 lane configuration (30-pin connector)
USB
1 x USB OTG (Micro-AB)
UART
2 x 3.3V from TX2/TX2i/TX1 UART0 and UART1
Pico-blade SMT RA (shared)
I2C
2 x I2C Ports @ 3.3V
Pico-blade SMT RA (shared)
GPIO
4 bits of 3.3V (level shifted GPIO)
Pico-blade SMT RA (shared)
LEDs
+5V/+3.3V/RESET LEDs
Input Power
+12V to +16V DC Input Range
Buttons
Power, Reset, Recovery
Operating Temperature
-40°C to +85°C (-40°F to +185°F)1
Weight
28g
Accessories
Cable Kit
Warranty and Support
1 Year Warranty
[1] The Jetson TX2/TX1 Module is rated for -25°C to +80°C (measured at thermal heat plate)

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Product Overview
Block Diagram

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Connector Locations –Top Side

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Connector Locations –Bottom Side (Single sided assembly –No components
on Bottom)

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Connector Summary
Designator
Connector
Description
P1
NVIDIA Jetson
TX2/TX2i/TX1
NVIDIA Jetson TX2/TX2i/TX1 Module
Connector
P2
GPIO, Serial (UART
TTL), I2C
Molex 15pin PicoBlade Connector
P3
USB 2.0 OTG
USB 2.0 Link 0 OTG Micro-AB Connector
P4
Power
Input Power Molex 4pin PicoBlade Connector
P5
Camera
MIPI CSI-2 Camera Input
Switch Summary
Designator
Function
Description
SW1
RESET
RST_IN# Switch
SW2
RECOVERY
FORCE_RECOV# Switch
SW3
POWER
PWR_BTN# Switch

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Detailed Feature Description
Jetson™TX2/TX2i/TX1 Board-to-Board Connector
With the NVIDIA Jetson™TX2/TX2i/TX1, the processor and chipset are implemented on the Jetson™
TX2/TX2i/TX1 Module. This connects to the Sprocket Carrier via a Samtec SEARAY™ Board to Board
Connector.
Function
NVIDIA Jetson™ TX2/TX2i/TX1 Interface
Location
P1
Type
Samtec SEARAY™ Connector
Carrier
Connector
P/N
SEAM-50-03.0-S-08-2-A-K-TR (8.0mm stacking height)
Manufacturer: Samtec
Mating
Connector
P/N
SEAF-50-05-S-08-02-A-K (installed on Jetson™
TX2/TX2i/TX1)
Manufacturer: Samtec
Pinout
Refer to NVIDIA’s Jetson™ TX2/TX2i/TX1 System-on-
Module datasheet for pinout details
Standoffs
8.0mm Standoffs Required between NVIDIA Jetson TX2
/TX1 Module and Sprocket (ASG008) Carrier
5.0mm Standoffs Required between NVIDIA Jetson TX2i
Module and Sprocket (ASG008) Carrier

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MIPI CSI-2 Camera Input
Function
MIPI CSI-2 Camera Interface
Location
P5
Type
IPEX Right Angle Surface Mount Connector
P/N
20525-030E-02C
Mating
FAW-1233-03
Manufacturer: Leopard
Cable
CBG255
Pinout
Pin
Description
1
+3.3V
2
+3.3V
3
+3.3V
4
+5V
5
-
6
+1.8V
7
-
8
-
9
CAM_PWR#
10
-
11
-
12
-
13
-
14
CAM_FLASH
15
CAM_MCLK
16
CAM_RST#
17
CAM_SDA
18
CAM_SCL
19
-
20
DATA2_N
21
DATA2_P
22
DATA0_N
23
DATA0_P
24
CLK_N
25
CLK_P
26
GND
27
DATA1_N
28
DATA1_P
29
DATA3_N
30
DATA3_P

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GPIO/Serial/I2C
Function
GPIO/Serial/I2C
Location
P2
Type
Molex PicoBlade (15 pin) Right Angle Surface Mount
P/N
53261-1571
Mating
51021-1500
Manufacturer: Molex
Crimp: 0500798100 or 0500588100
Manufacturer: Molex
Cable
CBG251
Pinout
Pin
Description
1
GND
2
I2C_GP1_SDA
3
I2C_GP1_CLK
4
I2C_GP0_SDA
5
I2C_GP0_CLK
6
GND
7
GPIO_EXP1_INT
8
GPIO_EXP0_INT
9
GPIO9
10
GPIO8
11
GND
12
UART0_RX
13
UART0_TX
14
UART1_RX
15
UART1_TX
NOTE:
a) All P2 signals are +3.3V level translated.
b) The I2C interface I2C_GP0 uses I2C bus 0 and
I2C_GP1 uses I2C bus 1 within Linux for Tegra.
c) Please reference our GPIO KDB for
TX2/TX2i/TX1 values.
d) A UART (from UART0) to USB cable can be
connected to a computer and console can be
accessed using a terminal emulator (e.g. Putty).

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USB OTG
The NVIDIA Jetson TX2/TX2i/TX1 has a single USB 2.0 OTG Port.
Function
USB 2.0 OTG
Location
P3
Type
Molex Micro-AB USB Connector
P/N
47589-0001
Mating
Any Micro USB 2.0 Plug
USB OTG –Host Mode
To put the USB OTG port into HOST mode, the USB ID pin needs to be left floating. Most USB Micro-A to
Type A (Female) cables will do this internally.
USB 2.0 OTG Client Mode (Used for Image Flashing)
To put the Sprocket into Client Mode, the ID Pin on the Micro-AB Connector needs to be pulled high. Most
USB Micro-B Cables will do this internally. Please refer to ‘Force USB Recovery Mode’under the Software /
BSP section of the Manual for instructions on how to do this. Once in Client Mode, the Sprocket will connect
the OTG USB 2.0 Link to the Micro-AB Connector. At this point the Sprocket can be connected to a Host PC
for software image flashing.

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Power Input
The Sprocket Carrier accepts a single power input to power all on-board devices. A power input range of +12V
to +16V is acceptable, while a single +12V input is nominal for operation.
WARNING: Please do not attempt to plug in the NVIDIA’s Development kit power supply which is 19.5V.
Doing this will damage the carrier board.
Function
Power
Location
P4
Type
Molex PicoBlade (4 pin) Right Angle Surface
Mount
P/N
53261-0471
Mating
51021-0400
Manufacturer: Molex
Crimp: 0500798100
Manufacturer: Molex
Cable
CBG252
OR
MSG069 (North America)
OR
MSG073 (Multi-region)
Pinout
Pin
Description
1-2
+VIN (12V to 16V DC)
3-4
GND
Notes
Below is the breakdown of MSG069 and
MSG073
MSG069: Wall mount kit (NA) for Sprocket
First part is CUI power supply: SWI24-12-N-P5 –
North American Plug.
Second part is a custom cable that will connect to
this power supply on one end and to Sprocket at
the other end.
MSG073: Wall mount kit (Multi-region) for
Sprocket:
First part is CUI power supply: SMI24-12-V-P5 –
Plug with Multi-region blades (see image on
right).
Second part is a custom cable that will connect to
CUI power supply on one end and to Sprocket at
the other end.
SMI24-12-V-P5 (image for reference only; see
product specs at Manufacturer website)

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Auto Start
The Sprocket Carrier has an on-board Auto Start Functionality, the module will boot automatically when
power is applied.
Note: Due to the changes done to the PMIC circuitry of the TX2i Jetson Module the Sprocket Carrier will always
remain ON when in AT (Automatic Power ON) and ATX (Push Power button) modes. This will cause the Sprocket
Carrier to automatically power ON when voltage is applied to the system. The system will in addition be unable to
shut down in software (Soft Shutdown), due to the characteristics of the TX2i power circuitry as such the system
will perform a Reset/Reboot function.
Switch Description
S1 Push Button Switch –Reset
Function
NVIDIA Jetson TX2/TX2i/TX1 Reset
Location
S1
Pinout
Switch
Description
S1
RST_IN# Switch
S2 Push Button Switch –Force Recover
Function
NVIDIA Jetson TX2/TX2i/TX1 Force Recovery
Location
S2
Pinout
Switch
Description
S2
FORCE_RECOV# Switch
S3 Push Button Switch –Power Button
Function
NVIDIA Jetson TX2/TX2i/TX1 Power
Location
S3
Pinout
Switch
Description
S3
PWR_BTN# Switch

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Typical Installation
1. Ensure all external system power supplies are off.
2. Install the Jetson TX2/TX2i/TX1 Module onto the Samtec SEARAY Connector P1. Be sure to follow the
manufacturer’s directions for proper installation of mounting hardware, heatsink/heatspreader, and any
other applicable requirements from the manufacturer.
3. Install the necessary cables for application. At a minimum these would include:
a) Power cable to the input power connector
b) Serial console from the 15 pin I/O cable
c) Hardware tools like Bus Pirate (https://www.seeedstudio.com/, https://www.adafruit.com/ or for EU
customers http://www.watterott.com/) to connect TTL signals from Sprocket to USB port of your
computer in order to acess console (Uart0).
Alternatively, TTL to USB cable like TTL-232R-3V3-WE or similar could be used) can also be used
to the emaulate the serial console over Putty (or similar opensource serial port emulator) on your PC.
Note: Serial Console using Bus Pirate:
Sprocket has been tested working with Bus Pirate v3.6 right out of the box. TX from Sprocket goes to
MISO pin on BusPirate and RX goes to MOSI pin; finally GND goes to GND.
Serial Console using TTL (+3.3V) to USB cable:
TTL to USB serial adapter cable may require an external 5KΩ series resistor to be added between CB251-
Pin 13 (Uart0-TX) and RXD pin of TTL-232R-3V3-WE. Similarly, may require an external 2KΩ series
resistor to be added between CB251-Pin 12 (Uart0-RX) and TXD pin of TTL-232R-3V3-WE.
4. Connect the Power Cable to the Power Supply
5. Switch ON the Power Supply. DO NOT power up your system by plugging in live power.

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On-Board Indicator LEDs
The Sprocket Carrier has 3 on-board indicator LEDs.
LED
Description
D2
RST_OUT#
D3
+5V
D10
+3V3
Current Consumption Details
Below are the maximum ratings of the Sprocket Carrier.
Theoretical Maximum
Watts
Theoretical absolute maximum total draw of all functionality on the
Sprocket Carrier Board (not including TX2/TX2i/TX1 Module)
TBD
Below are measurements taken with the Sprocket Carrier running in various configurations. Some values will
change depending on what operation or software is installed. Measurements also include the Jetson™
TX2/TX2i/TX1 Module. All measurements were taken in a lab environment with an ambient temperature of 25
degrees Celsius.
Actual Measurements
Watts
Module not installed, power applied to Sprocket Carrier only
0.11 W
Module not installed, power applied to Sprocket Carrier with MIPI Camera
only
0.38 W
Module installed, booted into Ubuntu, idle
1.14 W
Module Installed, booted into Ubuntu, running MIPI camera and USB
OTG functionality
4.08 W

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Software / BSP Details
All Connect Tech NVIDIA Jetson TX2/TX2i/TX1 based products are built upon a modified Linux for Tegra
(L4T) Device Tree that is specific to each CTI product.
WARNING: The hardware configurations of CTI’s products differ from that of the NVIDIA supplied
evaluation kit. Please review the product documentation and install ONLY the appropriate CTI L4T BSPs.
Failure to follow this process could result in non-functional hardware.
Connect Tech’s Custom L4T BSP (CTI-L4T)
Connect Tech also offers a custom BSP to add in additional peripheral support on CTI’s Jetson Carrier Boards.
In the case of the Sprocket Carrier Board the CTI-L4T will expose software control of most of the carrier
interfaces including MIPI CSI-2, USB and more.
The CTI-L4T can be downloaded directly from Connect Tech here:
http://www.connecttech.com/jetson
NVIDIA Jetpack for L4T
The Jetpack for L4T is an on-demand all-in-one package that bundles and installs all software tools required to
develop for the NVIDIA’s TX2/TX2i/TX1 Platform with Connect Tech’s TX2/TX2i/TX1 Carrier Boards.
Jetpack includes host and target development tools, APIs and packages (OS images, tools, APIs, middleware,
samples, documentation including compiling samples) to enable developers to jump start their development
environment for developing with the Jetson Embedded Platform. The latest release of Jetpack runs on an
Ubuntu Linux 64-bit host system and supports both the latest Jetson TX2/TX2i/TX1 Development Kit and
Jetson TK1 Development Kit.
NVIDIA’s Jetpack can be downloaded directly from NVIDIA here:
https://developer.nvidia.com/embedded/jetpack
Force USB Recovery Mode
The Sprocket Carrier does support USB Force Recovery Mode or USB OTG on the USB 2.0 port. To update
the firmware on your NVIDIA Jetson TX2/TX2i/TX1, mount the module onto the Sprocket and place the
system into USB OTG Client Mode. This is done by attaching a USB Micro B Cable/Connector to the
Sprocket OTG Port. Press and Hold Recovery Button, wait for 5 seconds, while still holding RECOVERY
button press for 1 second and release the RESET button. After this wait for 2 seconds, now you can release the
recovery button and the module should now be in recovery mode. From there follow the instructions as
detailed in the NVIDIA Jetson TX2/TX2i/TX1 Developer Kit User Guide or contact
[email protected]m.

Sprocket Carrier for NVIDIA® Jetson™ TX2/TX2i/TX1
Users Guide
www.connecttech.com
Document: CTIM-00152
Revision: 0.10
Page 20 of 22
Connect Tech Inc. 800-426-8979 | 519-836-1291
Date: 2019/04/01
Thermal Details
The Sprocket Carrier Board has an Operating Temperature Range of -40°C to +85°C.
However, it is important to note that the NVIDIA Jetson TX2 and TX1 Modules have its own properties
separate to that of the Sprocket Carrier Board. The NVIDIA Jetson TX2i matches the Sprocket Operating
Temperature Range of -40°C to +85°C.
Customer responsibility requires proper implementation of a thermal solution that maintains the
TX2/TX2i/TX1 SoC and Thermal Transfer Plate (TTP) temperatures below the specified temperatures (shown
in the tables below) under the maximum thermal load and system conditions for their use case.
Jetson TX2i Thermal Specifications
Parameter
Value
Units
Maximum TTP operating temperature
85
°C
Recommended Tegra X2 operating temperature limit
T.cpu = 95.5
°C
T.gpu = 95.5
°C
Tegra X2 maximum operating temperature limit
T.cpu = 101
°C
T.gpu = 101
°C
T.diode = 110
°C
Jetson TX2/TX1 Thermal Specifications
Parameter
Value
Units
Maximum TTP operating temperature
80
°C
Recommended Tegra X2 operating temperature limit
T.cpu = 95.5
°C
T.gpu = 93.5
°C
Tegra X2 maximum operating temperature limit
T.cpu = 101
°C
T.gpu = 101
°C
NVIDIA provides complete Thermal Design Guides, which include all of the information required to
implement a complete thermal solution for the Jetson TX2, TX2i or TX1 Module. The Thermal Design Guides
can be downloaded here:
Jetson TX2i:
http://developer.nvidia.com/embedded/dlc/jetson-tx2i-thermal-design-guide
Jetson TX2/TX1:
http://developer.nvidia.com/embedded/dlc/jetson-tx2-thermal-design-guide