Intrinsyc Open-Q 2500 User manual

Open-Q™ 2500 Development Kit
User Guide
[Document: ITC-01IMP1366-UG-001 Version: 1.1]
Your use of this document is subject to and governed by those terms and conditions in the Intrinsyc Purchase an Open-Q Development Kit Based on
Snapdragon 2500 Series (APQ8009W) Processor and Software License Agreement for the Open-Q 2500 Development Kit, which you or the legal entity
you represent, as the case may be, accepted and agreed to when purchasing an Open-Q Development Kit from Intrinsyc Technologies Corporation
(“Agreement”). You may use this document, which shall be considered part of the defined term “Documentation” for purposes of the Agreement, solely
in support of your permitted use of the Open-Q 2500 Development Kit under the Agreement. Distribution of this document is strictly prohibited without
the express written permission of Intrinsyc Technologies Corporation and its respective licensors, which they can withhold, condition or delay in its sole
discretion.
Intrinsyc is a trademark of Intrinsyc Technologies Corporation., registered in Canada and other countries.
Qualcomm and Snapdragon are trademarks of Qualcomm Incorporated, registered in the United States and other countries. Other product and brand
names used herein may be trademarks or registered trademarks of their respective owners.
This document contains technical data that may be subject to U.S. and international export, re-export, or transfer (“export”) laws. Diversion contrary to
U.S. and international law is strictly prohibited.

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IDENTIFICATION
Document Title Open-Q™ 2500 Development Kit User Guide
Document Number ITC-01IMP1366-UG-001
Version 1.1
Date Feb 25, 2019
History
REVISION DATE DESCRIPTION PAGES
1.0 Dec 15, 2018 Initial Draft All
1.1 Feb 25, 2019 Battery, Sensor, and GPS updates 17, 26,
27, 31

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Table of Contents
1. INTRODUCTION.................................................................................. 5
1.1 Purpose........................................................................................................ 5
1.2 Scope........................................................................................................... 5
1.3 Intended Audience...................................................................................... 5
2. DOCUMENTS ...................................................................................... 6
2.1 Applicable Documents................................................................................ 6
2.2 Reference Documents................................................................................. 6
2.3 Terms and Acronyms.................................................................................. 6
3. Open-Q 2500 DEVELOPMENT KIT .................................................... 8
3.1 Introduction................................................................................................. 8
3.2 Development Platform Notice.................................................................... 8
3.3 Anti-Static Handling Procedures ................................................................ 8
3.4 Development Kit Contents.......................................................................... 8
3.4.1 Important Locations...................................................................................................8
3.4.2 Block Diagram.........................................................................................................11
3.4.3 Optional Accessories ...............................................................................................11
3.5 Getting Started.......................................................................................... 12
3.5.1 Registration..............................................................................................................12
3.5.2 Configuration Switch Settings .................................................................................12
3.5.3 Powering Up the Development Kit..........................................................................12
3.6 Open-Q 2500 SOM................................................................................... 12
3.7 Open-Q 2500 Carrier Board ..................................................................... 13
3.7.1 SOM Board to Board Connectors............................................................................14
3.7.2 Configuration – DIP Switch S700 ...........................................................................14
3.7.3 Input Power Selection..............................................................................................15
3.7.4 SOM Current Sense Header J400 ............................................................................17
3.7.5 Coin Cell Battery Holder B400................................................................................18
3.7.6 User Buttons and LEDs ...........................................................................................19
3.7.7 Debug Serial UART over USB J800 .......................................................................20
3.7.8 USB Type C (for ADB) J900...................................................................................20
3.7.9 Micro SD Card Socket J1000 ..................................................................................21
3.7.10 Display Connector J1300.........................................................................................21
3.7.11 Camera Connector J1400.........................................................................................23
3.7.12 Digital IO Expansion Header J1800 ........................................................................24
3.7.13 Sensor IO Expansion Header J1900.........................................................................25
3.7.14 Audio IO Expansion Header J1600 .........................................................................27
3.7.15 On Board Digital Microphones................................................................................29
3.7.16 FM Antenna Header J2001......................................................................................29
3.7.17 WLAN / BT Antenna Connection ...........................................................................30
3.7.18 GPS Antenna Connection Options...........................................................................30
3.7.19 Auxiliary Thermistor Header J302 ..........................................................................32
3.7.20 Haptic Output Header J303......................................................................................32
3.7.21 Speaker Output Connector.......................................................................................33
3.7.22 Unsupported Features ..............................................................................................33

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List of Figures
Figure 1 - Assembled Open-Q 2500 Development Kit..........................................................................9
Figure 2 - Open-Q 2500 Block Diagram .............................................................................................11
Figure 3 - J500 12V DC Power Jack....................................................................................................17
Figure 4 - SOM Current Sense Header................................................................................................18
Figure 5 - Debug UART over USB......................................................................................................20
Figure 6 - Display Connector...............................................................................................................22
Figure 7 - Camera Connector...............................................................................................................23
Figure 8 - J1800 Digital IO Expansion header.....................................................................................24
Figure 9 - Sensor Expansion Header....................................................................................................25
Figure 10 – STMicroelectronics STEVAL V6 Sensors Board............................................................26
Figure 11 – Keyed connector on the STEVAL V6 Sensor Card .........................................................27
Figure 12 - Audio IO Expansion Header .............................................................................................27
Figure 13 - On board digital MIC’s .....................................................................................................29
Figure 14 - WLAN / BT Antenna Connection.....................................................................................30
Figure 15 - GPS Antenna Connection Options....................................................................................31
List of Tables
Table 1 - Carrier Board Properties.......................................................................................................13
Table 2 - System Configuration DIP Switch Settings..........................................................................15
Table 3 - Power Header J400 Pin-out..................................................................................................18
Table 4 - J1800 Digital IO Expansion Header Pinout .........................................................................24
Table 5 - Sensor Expansion Header J1900 Pinout...............................................................................25
Table 6 - Audio IO Expansion Header Pinout.....................................................................................27
Table 7 - GPS Antenna Selection DIP Switch.....................................................................................32

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1. INTRODUCTION
1.1 Purpose
The purpose of this user guide is to provide primary technical information on the Open-Q™ 2500
Development Kit.
For more background information on this development kit, visit:
https://www.intrinsyc.com/snapdragon-embedded-development-kits/open-q-2500-development-kit/
1.2 Scope
This document will cover the following items on the Open-Q 2500:
•Block Diagram and Overview
•Hardware Features
•Configuration
•SOM
•Carrier Board
•Available peripherals
1.3 Intended Audience
This document is intended for users who would like to develop custom applications on the Intrinsyc
Open-Q 2500 Development Kit.

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2. DOCUMENTS
This section lists the supplementary documents for the Open-Q 2500 development kit.
2.1 Applicable Documents
REFERENCE
TITLE
A-1
Intrinsyc Purchase and Software License Agreement for the Open-QDevelopment
Kit
2.2 Reference Documents
The below listed documents are available on the Intrinsyc Support Site (registration required).
https://support.intrinsyc.com/projects/open-q-2500-development-kit/documents
REFERENCE
TITLE
R-1
Open-Q 2500 SOM – HW Device Specification
R-2
Open-Q 2500 SOM – Carrier Board Design Guide – Tech Note 52
R-3
Open-Q 2500 Schematics (SOM and Carrier)
R-4
Open-Q 2500 Development Kit – Display Adapter Design Guide – Tech note 53
R-5
Open-Q 2500 Development Kit – Camera Adapter Design Guide – Tech note 55
R-6
Open-Q 2500 (APQ8009W) SOM Development Kit – Tech Note 54: Battery
Charging
2.3 Terms and Acronyms
Term and acronyms
Definition
AMIC
Analog Microphone
ANC
Audio Noise Cancellation
B2B
Board to Board
BLSP
Bus access manager Low Speed Peripheral (Serial interfaces like
UART / SPI / I2C/ UIM)
BT LE
Bluetooth Low Energy
CSI
Camera Serial Interface
DSI
MIPI Display Serial Interface
EEPROM
Electrically Erasable Programmable Read only memory
eMMC
Embedded Multimedia Card
FCC
US Federal Communications Commission
FWVGA
Full Wide Video Graphics Array
GPS
Global Positioning system
HDMI
High Definition Media Interface
HSIC
High Speed Inter Connect Bus
JTAG
Joint Test Action Group

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LNA
Low Noise Amplifier
MIPI
Mobile Industry processor interface
MPP
Multi-Purpose Pin
NFC
Near Field Communication
RF
Radio Frequency
SATA
Serial ATA
SLIMBUS
Serial Low-power Inter-chip Media Bus
SOM
System on Module
SPMI
System Power Management Interface (Qualcomm PMIC /
baseband proprietary protocol)
SSBI
Single wire serial bus interface (Qualcomm proprietary mostly
PMIC / Companion chip and baseband processor protocol)
UART
Universal Asynchronous Receiver Transmitter
UFS
Universal Flash Storage
UIM
User Identity module
USB
Universal Serial Bus
USB HS
USB High Speed
USB SS
USB Super Speed

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3. OPEN-Q 2500 DEVELOPMENT KIT
3.1 Introduction
The Open-Q 2500 provides a quick reference and evaluation platform for the Qualcomm Snapdragon
Wear 2500 Platform. The development kit is suited for Android / Linux application developers,
OEMs, consumer manufacturers, hardware component vendors, camera vendors, and wearable
product designers to evaluate, optimize, test and deploy applications that can utilize the Qualcomm
Snapdragon Wear 2500 Platform technology.
3.2 Development Platform Notice
This development platform contains RF/digital hardware and software intended for engineering
development, engineering evaluation, or demonstration purposes only and is meant for use in a
controlled environment. This device is not being placed on the market, leased or sold for use in a
residential environment or for use by the general public as an end user device.
This development platform is not intended to meet the requirements of a commercially available
consumer device including those requirements specified in the European Union directives applicable
for Radio devices being placed on the market, FCC equipment authorization rules or other
regulations pertaining to consumer devices being placed on the market for use by the general public.
This development platform may only be used in a controlled user environment where operators have
obtained the necessary regulatory approvals for experimentation using a radio device and have
appropriate technical training. The device may not be used by members of the general population or
other individuals that have not been instructed on methods for conducting controlled experiments
and taking necessary precautions for preventing harmful interference and minimizing RF exposure
risks. Additional RF exposure information can be found on the FCC website at
http://www.fcc.gov/oet/rfsafety/
3.3 Anti-Static Handling Procedures
The Open-Q 2500 Development Kit has exposed electronics and chipsets. Proper anti-static
precautions should be employed when handling the kit, including but not limited to:
•Using a grounded anti-static mat
•Using a grounded wrist or foot strap.
3.4 Development Kit Contents
The Open-Q 2500 Development Kit comes with Android software pre-programmed and includes the
following: oOpen-Q 2500 SOM with the Snapdragon 2500 (APQ8009W) processor
oMini-ITX form-factor carrier board
oAC power adapter
3.4.1 Important Locations
See the diagram below for the locations of key components, interfaces, and controls.

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Figure 1 - Assembled Open-Q 2500 Development Kit
List of Features itemized in the figure above:
1. DC Power supply connecter
2. Battery input header
3. USB serial debug console
4. USB Type-C connector for ADB
5. DC / Battery Power input selection switch
6. Battery configuration DIP switch
7. GPS antenna connection options and DIP switch
8. SOM Current Sense Header
9. Micro SD card connector
10. System Configuration DIP Switch
11. Camera connector
12. Auxiliary Thermistor Header
13. Haptic Header
1
3
4
7
9
11
16
18
20
21
22
23
2
5
6
10
8
12
13
14
15
17
19
15

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14. Speaker Output Connector
15. On-board Microphones (bottom left and right corners of Carrier board)
16. Audio IO header
17. Coin cell battery holder
18. Buttons and LEDs including the power on/off switch
19. On board Display
20. On board WLAN antenna
21. Digital IO header
22. FM antenna header
23. Sensor header

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3.4.2 Block Diagram
The block diagram below shows the connectivity and major components of the Open-Q 2500
Development Kit.
Open-Q™ 2500 Common Carrier Board
Open-Q™ 2500 Common Carrier Board
MIPI-DSI
USB HS
USB2
Type-C
MIPI-CSI
Power
Camera Conn
UART
MI2S
Audio
12V Power
Speaker Term.
FTDI USB
Bridge
Digital Audio
Exp. Header
Sensor Header
SDC2
uSD Card
Power/Battery
Management
VBUS
Power
Battery Conn
Batt Power
Debug USB
Micro-B
USB
HS
PDM
Mono Spkr
Amp
MI2S
Wi-Fi/BT
Antenna
GPS PCB
Antenna
GPS
Front-end
GPS Ant
Conn SMA
DMIC DMIC
PDM
GPIO Header
Buttons/LEDs
Boot SW
SIM Card
Socket UIM
Display/Touch
Header
Haptics Header
Open-Q™ 2500 SOM
APQ8009W
Power
SDC2
Debug UART
GPIO/BLSP
Wi-Fi / BT
WCN3620
PMIC
PMW3100
SDC1 DRAM
Board to Board Connectors
USB2
MIPI-CSI
MIPI-DSI
Main Pwr
Wi-Fi/BT
Antenna U.FL
GPS Antenna
U.FL
MI2S audio
DMIC input
UIM/GPIO
VBUS
WGR7640
GPS
PoP memory
RAM 1GB
eMMC 8GB
Coax
Coax
Figure 2 - Open-Q 2500 Block Diagram
3.4.3 Optional Accessories
Optional accessories are available for the Open-Q 2500 development kit, like LCD Panel, Camera
adapter, and sensor board. Please visit the Intrinsyc product store for availability of these accessories:
https://shop.intrinsyc.com/collections/all, or contact [e-mail].

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3.5 Getting Started
This section explains how to setup the Open-Q 2500 Development Kit and start using it.
3.5.1 Registration
To register the development kit and gain access to the Intrinsyc support site, please visit:
http://support.intrinsyc.com/account/register.
To proceed with registration, the development kit serial number is required. These serial numbers
can be found on the labels that are present on the SOM and carrier boards. The labels contain the
following information:
•SOM: Serial Number, WIFI MAC address
•Carrier: Serial Number
Note: Please retain the SOM and carrier board serial numbers for warranty purposes.
Refer to http://support.intrinsyc.com/account/serialnumber for more details about locating the
development kit serial number.
3.5.2 Configuration Switch Settings
The default configuration for the system configuration DIP switch S700 is for all switches to be open
or OFF. For details about other configurations, see section 3.7.2.
3.5.3 Powering Up the Development Kit
The development kit can be powered up by either using a DC power supply or by connecting a
battery on the connector J401. Select the desired power source using the switch S400 on the carrier
board. The green LED on the board is the power LED and should glow once the development kit is
powered. To see the debug logs, connect a serial debug cable on the J800 connector.
To power-up the board, perform the following exact steps below detailed below:
1. At a static-safe workstation, remove the development kit board carefully from the anti-static
bag.
2. Connect the Power Adapter to the 12V DC Jack and then press and hold the power button
until you see the Intrinsyc logo appear on the on-board display (~3 seconds).
3. Navigate using the touchscreen on the on-board display.
3.6 Open-Q 2500 SOM
The Open-Q 2500 SOM contains the core Snapdragon Wear 2500 architecture. Measuring in at
31.5mm x 15mm, the SOM is where all the processing occurs. It is connected to the carrier board via

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two 100 pin Hirose DF40 connectors which allows essential power rails and signals to be exposed
for supporting other peripherals and interfaces on the platform.
For detailed information about the Open-Q 2500 SOM, see the device specification noted as
reference document R-1.
3.7 Open-Q 2500 Carrier Board
The Open-Q 2500 Carrier board is a Mini-ITX form factor board with various connectors used for
connecting different peripherals. The table and sections below provide in depth information on the
carrier board properties, user interfaces, connectors, and expansion headers found on the carrier
board. This information is important for users wishing to connect other external hardware devices to
the Open-Q 2500 development kit. Users must ensure that before connecting any hardware device to
the development kit, that it is compatible with the Open-Q 2500 hardware specifications.
Table 1 - Carrier Board Properties
Item
Description
Specification
Usage
Form Factor
Dimensions: 170mm x 170mm
Mini-ITX Form Factor
SOM Interface
2 x 100-pin Hirose DF40 connectors
SOM power and signal IO connection
to carrier board.
The Open-Q 2500 SOM connects
to the carrier board through this
interface.
Power
AC / Barrel charger
12 V DC Power Supply
Power Supply
Power
Battery connector for single cell
lithium battery
Input power option
Debug Serial via USB
Debug Serial UART console over
USB for development
USB Micro B connector
Development Serial Connector
for debug output via USB
Buttons
General Purpose SW button
SMD Button
Additional button for general
purpose
Power Button
SMD Button
Power Button for Suspend /
Resume and Power off
Volume Keys
Volume + key
SMD Button
Volume +Key
Volume – key
SMD Button
Volume – Key
Sensor Connector
24 pin Sensor Expansion Connector
Available via Intrinsyc optional
accessories kit
Digital IO Expansion Header
Exposes general purpose IO for user
development
Micro SD (on bottom)
Micro SD card
4bit Micro SD card support
External Storage
Dual on-board Digital
Microphones
DMIC interface available on audio
IO expansion with modifications to
carrier board
Speaker output connector
For speaker connection
USB Type C
Micro type C connector
For USB debugging and client /
host mode
WLAN Antenna
PCB Antenna
Coax connection to SOM WiFi
module
GPS Antenna options
PCB Antenna or SMA connector for
external antenna
Coax connection to SOM GPS
module
Coin Cell Holder
Coin Cell battery holder provided
for PMIC RTC
LEDs
Four LEDs
Two user driven LEDs

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Item
Description
Specification
Usage
LCD Display and Touch
connector
100 pin for LCD signals
4-lane MIPI DSI
MIPI Alliance Specification v1.01
MIPI D-PHY Specification v0.65,
v0.81, v0.90, v1.01
For connecting display accessory
Sensor header
24 pin sensor header
24 pin sensor header
Header to connect sensor board.
Please contact Intrinsyc for
availabilities of this board
CSI Camera connector
One camera connector
MIPI Alliance Specification v1.00 for
Camera Serial Interface
For connecting camera
accessories.
Current Sense Header
3 pin header
Sense lines connected across 0.005
Ohm resistor
To measure current consumption
of SOM
3.7.1 SOM Board to Board Connectors
The Open-Q 2500 SOM connects to the carrier board via two 100 pin Hirose DF40 connectors which
allows essential power rails and signals to be exposed for supporting other peripherals and interfaces
on the platform. For the list of signals exposed by the SOM, see the device specification noted as
reference document R-1.
3.7.2 Configuration – DIP Switch S700
There is a DIP switch S700 on the top side of the Open-Q 2500 carrier board. The 8-bit switch
allows the user to control the system configuration and boot options. The image below shows the
DIP switch assignments. NOTE: the silkscreen shown on REV1 carrier boards is reversed from
the image below. The image below is correct.

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See the table below for a description of the DIP switch connections.
Table 2 - System Configuration DIP Switch Settings
Function
DIP
Switch
Description
Notes
FORCED_USB_BOOT
S700-1
For factory mode programming. Connected to APQ
GPIO37.
For Intrinsyc use only. Leave open / OFF.
WATCHDOG _DISABLE
S700-2
Enables WATCHDOG_DISABLE when DIP
switch turned on. Connected to APQ-GPIO76
Unsupported feature. Leave switch open /
OFF.
BOOT_CONFIG[1]
S700-3
APQ boot configuration bit 1. Connected to APQ
GPIO77
For default boot configuration, leave open /
OFF. Other boot configurations not supported.
BOOT_CONFIG[2]
S700-4
APQ boot configuration bit 2. Connected to APQ
GPIO78
For default boot configuration, leave open /
OFF. Other boot configurations not supported.
BOOT_CONFIG[3]
S700-5
APQ boot configuration bit 3. Connected to APQ
GPIO79
For default boot configuration, leave open /
OFF. Other boot configurations not supported.
CBL_PWN_N
S700-6
Controls the auto power of the SOM.
Default configuration is open / OFF. To enable
auto power on of the SOM, set switch closed /
ON.
USR_DEBUG 2
S700-7
User debug switch
Default out of the box configuration is OFF
USR_DEBUG 1
S700-8
User debug switch
Default out of the box configuration is OFF
3.7.3 Input Power Selection
The development kit can be powered using either external DC power supply or by using a battery.
The input power selection can be done using the power selection switch S400 as mentioned below.

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3.7.3.1 Input Power Selection Switch S400
The S400 switch is used to select the power source. To select the external DC power supply as the
power source, change the switch towards the DC position(label). To power up the kit using the
battery, change the switch towards the BAT position(label).
3.7.3.2 Battery ID and Thermistor Configuration DIP Switch S401
Battery ID and thermistor configuration is handled by the DIP switch S401. This switch has two sub
switches, one is used for battery ID and another one is used for battery thermistor. When power is
supplied by the external power supply, or when the connected battery does not have a battery ID or
thermistor, the battery ID and the battery thermistor must be faked. In order to fake this, turn the
battery ID and battery term switches to ON position.
3.7.3.3 DC Power Input Jack J500
The Open-Q2500 development kit power source connects to the 12V DC power supply jack J500.
Starting from the power jack, the 12V power supply branches off into different voltage rails via step
down converters on the carrier board and PMIC on the SOM.

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Figure 3 - J500 12V DC Power Jack
3.7.3.4 Battery Connector J401
The Open-Q 2500 development Kit can also be powered through a battery. Use the J401 connector
on the carrier board to connect a battery to power up the kit as shown in the image below.
Please refer to R-6 (Tech. Note 54) for further detail on how to power the development kit with a
battery.
3.7.4 SOM Current Sense Header J400
The SOM Current Sense header, J400, can be used to monitor the SOM’s current consumption on the
main SOM_SYS_PWR power rail.
VBATT Minus
(GND)
VBATT Positive
Battery
Thermistor
Battery ID

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Figure 4 - SOM Current Sense Header
The table below summarizes the pin outs of header J400
Table 3 - Power Header J400 Pin-out
Description
Signal
pin
SOM power positive current sense line
SOM_PWR_SENSE_P
J400[1]
SOM power negative current sense line
SOM_PWR_SENSE_N
J400[2]
GND
GND
J400[3]
To obtain power consumption measurements, the header is connected to a data acquisition unit (e.g.
Keithley 2701) and the voltages on the SOM_PWR_SENSE_P/N pins are captured every few
seconds over the test period (typically 30 minutes). The SOM power consumption is then calculated
as (where Rsense = 5 milliohms):
 =∗
(−)

3.7.5 Coin Cell Battery Holder B400
The coin cell holder allows the user to use a coin cell for supplying power to the SOM VCOIN
power input. It is recommended that a Panasonics ML621 series rechargeable coin cell be used (not
supplied with the development kit).

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3.7.6 User Buttons and LEDs
There are four user buttons and four LED’s on the Open-Q 2500 development kit. Following is the
information regarding the User Buttons:
User Button
Function
S1100
Volume +
Use this button to control or increase the volume.
S1102
Volume -
Use this button to control or decrease the volume.
This button can also be used to reset the board.
S1101
GP Switch
This is a general-purpose user button.
S1103
Power ON
Use this button to power on the 2500 development
kit.
Following is the information regarding the User LED’s:
LED
Function
DS1100
Yellow LED
General purpose LED
DS1101
Blue LED
General purpose LED
DS1102
Red LED
This LED indicates charging (NOTE: not functional
in REV1 of carrier board)
DS1103
Green LED
This LED indicates power

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3.7.7 Debug Serial UART over USB J800
Figure 5 - Debug UART over USB
The UART connection used on the Open-Q 2500 is a USB micro B connector (J800). This debug
UART is available over USB via the FTDI FT232RQ chip on the carrier board. To get the serial
terminal working with a PC, user needs to ensure that the appropriate FTDI drivers are installed.
3.7.8 USB Type C (for ADB) J900
The USB connection on the Open-Q 2500 is a USB Type C connector (J900). This connection is
used for Android debug bridge (ADB) functionality. To get the adb shell, ensure that the board is up
and running and connect the Type C cable between the board and the PC. Type the command adb
shell on the PC prompt to exercise the adb shell functionality.