Arrow einfochips eragon 660 User manual

Hardware Reference Manual
Version 1.0 - iii - eInfochips Confidential
Contents
1 Document Details..................................................................................................................................7
1.1 Document History .........................................................................................................................7
1.2 Definition, Acronyms and Abbreviations...................................................................................... 7
1.3 References ....................................................................................................................................9
2 License Agreement..............................................................................................................................10
3 Preface ................................................................................................................................................11
Intended Audience......................................................................................................................11
Intended Use...............................................................................................................................11
4 Overview .............................................................................................................................................12
Key Features................................................................................................................................13
Applications.................................................................................................................................14
5 Getting Started....................................................................................................................................15
Prerequisites ...............................................................................................................................15
Starting the board for the first time ...........................................................................................15
6 System Block Diagram.........................................................................................................................16
ERAGON660 ................................................................................................................................18
6.1.1 ERAGON660 SBC (Single Board Computer) Image..............................................................18
6.1.2 ERAGON660 IO Card Image ................................................................................................20
Major Interfaces of ERAGON660 SBC .........................................................................................38
6.2.1 Processor SDA660 - Features and interfaces......................................................................38
6.2.2 Memory Interface ...............................................................................................................39
6.2.3 Wi-Fi + BT Interface.............................................................................................................39
6.2.4 GPS Interface.......................................................................................................................39
6.2.5 PMIC Interface ....................................................................................................................39
6.2.6 System LEDs ........................................................................................................................40
Major Blocks of ERAGON660 ......................................................................................................41
6.3.1 Power Supply ......................................................................................................................41
6.3.2 Boot Configuration..............................................................................................................42
6.3.3 General Purpose Keys .........................................................................................................42

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Version 1.0 - iv - eInfochips Confidential
6.3.4 MIPI CSI Interface................................................................................................................43
6.3.5 MIPI DSI Interface ...............................................................................................................47
6.3.6 USB Interface ......................................................................................................................50
6.3.7 Gigabit Ethernet..................................................................................................................52
6.3.8 Audio Interface....................................................................................................................53
6.3.9 Sensors................................................................................................................................56
6.3.10 Micro SD Card .....................................................................................................................56
6.3.11 DSI to HDMI.........................................................................................................................56
6.3.12 HDMI to CSI Audio interface ...............................................................................................57
6.3.13 WiFi + BT chip antenna .......................................................................................................58
6.3.14 GPS chip antenna ................................................................................................................59
6.3.15 M.2 (4G LTE) connector ......................................................................................................59
6.3.16 Battery.................................................................................................................................62
6.3.17 FAN......................................................................................................................................63
6.3.18 Debug Port ..........................................................................................................................63
6.3.19 Low Speed Expansion Connector........................................................................................64
6.3.20 Expansion Connector ..........................................................................................................65
7 Electrical Specification ........................................................................................................................67
7.1.1 Absolute Maximum Ratings ................................................................................................67
7.1.1 Operating Conditions..........................................................................................................67
8 Mechanical Specification ....................................................................................................................68
SBC Board Dimensions................................................................................................................68
IO Card Dimension ......................................................................................................................69
9 Special Care when using ERAGON660 Board......................................................................................70
Development Device Notice .......................................................................................................70
Anti-Static Handling Procedure...................................................................................................70
10 About eInfochips.................................................................................................................................71

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Version 1.0 - v - eInfochips Confidential
List of Figures
Figure 1 –ERAGON660 SBC Block Diagram ...............................................................................................16
Figure 2 –ERAGON660 IO Card Block Diagram ..........................................................................................17
Figure 3 –ERAGON660 Single Board Computer (SBC) Image.....................................................................18
Figure 4 –ERAGON660 IO Card Image........................................................................................................20
Figure 5 –SBC DC Jack (J9)..........................................................................................................................41
Figure 6 –SBC Switch (SW2) .......................................................................................................................41
Figure 7 –SBC Battery Connector (J15) ......................................................................................................41
Figure 8 –SBC Boot Configuration Switch (SW1)........................................................................................42
Figure 9 –SBC General Purpose Keys (SW1,SW4 & SW5) ..........................................................................43
Figure 10 –SBC MIPI CSI connectors (CSI0, CSI2) .......................................................................................43
Figure 11 –IO Card MIPI CSI1 connectors (J18)..........................................................................................46
Figure 12 –SBC MIPI DSI0 connectors (J14) ...............................................................................................47
Figure 13 –IO Card MIPI DSI1 connectors (J18) ........................................................................................48
Figure 14 –SBC USB 3.1 Connector (J13)....................................................................................................50
Figure 15 –IO Card USB Host1 and Host2 connections to USB Stack (USB1).............................................51
Figure 16 –IO Card Ethernet connector (E1)..............................................................................................52
Figure 17 –SBC Speaker connector (J11)....................................................................................................53
Figure 18 –IO Card WCD9335 Audio Code Daughter Board ......................................................................53
Figure 19 –IO Card Audio Headset Jack (J19).............................................................................................54
Figure 20 –IO Card Analog and Digital Codec Headers (J24 & J22)............................................................54
Figure 21 –SBC Micro SD card connector...................................................................................................56
Figure 22 –IO Card HDMI to CSI Audio Connector (J23) ............................................................................57
Figure 23 –IO Card DSI to HDMI Audio Connector (J13)............................................................................58
Figure 24 –SBC Routing of UFL cable from SBC to IO Card (J8 & J12)........................................................58
Figure 25 –SBC Routing of UFL cable from SBC to IO Card (10).................................................................59
Figure 26 –IO Card M.2 connector (J11) ....................................................................................................59
Figure 27 –IO Card SIM card connectors (J26 & J27) .................................................................................59
Figure 28 –SBC Battery Connector (J15) ....................................................................................................62
Figure 29 –IO Card FAN connector (J5)......................................................................................................63
Figure 30 –SBC Debug Port connection (J7)...............................................................................................63
Figure 31 –SBC Low Speed Expansion Header (J6) ....................................................................................64
Figure 32 –IO Card Expansion Header (J4).................................................................................................65
Figure 33 –IO Card Expansion Header (J8).................................................................................................66
Figure 34 –SBC Module Dimension............................................................................................................68
Figure 35 –IO Card Dimension ...................................................................................................................69

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Version 1.0 - vi - eInfochips Confidential
List of Tables
Table 1: Document History ...........................................................................................................................7
Table 2 : Definition, Acronyms and Abbreviations .......................................................................................8
Table 3 : References......................................................................................................................................9
Table 4 : Prerequisite table.........................................................................................................................15
Table 4 : ERAGON660 SBC (Single Board Computer) Components ............................................................19
Table 5 : ERAGON660 IO Card Components...............................................................................................21
Table 6 : Connector J16 pin details ............................................................................................................26
Table 7 : Connector J18 pin details ............................................................................................................31
Table 8 : Connector J19 pin details ............................................................................................................37
Table 9: ERAGON660 BOOT Configuration options....................................................................................42
Table 10: SBC MIPI CSI0 Pin Description (J1) ..............................................................................................44
Table 11: SBC MIPI CSI2 Pin Description (J2) ..............................................................................................45
Table 12 : IO Card MIPI CSI1 Pin Description (J18) .....................................................................................46
Table 13: SBC MIPI DSI0 Pin Description (J14)............................................................................................48
Table 14: IO Card MIPI DSI1 Pin Description (J18)......................................................................................49
Table 15: SBC USB3.1 connector (J13) Pinout.............................................................................................51
Table 16: USB2.0 Host connector (J33) Pinout ...........................................................................................52
Table 17: IO Card Ethernet (E1) Pinout.......................................................................................................53
Table 18: IO Card Headset (J19) Pinout ......................................................................................................54
Table 19: IO Card Audio Header (J24) Pinout ............................................................................................. 55
Table 20: IO Card Audio Header (J22) Pinout ............................................................................................. 56
Table 21: IO Card HDMI Audio Connector (J23) Pinout..............................................................................57
Table 22: IO Card HDMI Audio Connector (J26) Pinout..............................................................................58
Table 23: IO Card M.2 connector (J11) Pinout............................................................................................61
Table 24: IO Card SIM CARD_1 connector (J27) Pinout..............................................................................61
Table 25: IO Card SIM CARD_2 connector (J26) Pinout..............................................................................62
Table 26: SBC Battery Connector (J15) Pinout............................................................................................62
Table 27: SBC Debug Port Connector (J7) Pinout .......................................................................................63
Table 28: SBC Low Speed Expansion Header (20) Pinout ...........................................................................64
Table 29: IO Card Expansion Header (20) Pinout........................................................................................65
Table 30: IO Card Expansion Header (20) Pinout........................................................................................66
Table 32 : Absolute Maximum Ratings .......................................................................................................67
Table 33 : Operating Conditions .................................................................................................................67

Hardware Reference Manual
Version 1.0 - 7 - eInfochips Confidential
1Document Details
1.1 Document History
Version
Author
Description Of Changes
Name
Date
1.0
eInfochips
23-oct-2018
Initial release
Table 1: Document History
1.2 Definition, Acronyms and Abbreviations
Definition/Acronym/Abbreviation
Description
BLE
Bluetooth Low Energy
BT
Bluetooth
CPU
Central Processing Unit
CSI
Camera Serial Interf BLE e
DC
Direct Current
DDR
Double Data Rate
DSI
Display Serial Interface
eI
eInfochips
GB
Giga Byte
GPIO
General Purpose Interface
GPS
Global Positioning System
HD
High Definition
HDMI
High Definition Multimedia Interface
I2C
Inter-Integrated Circuit

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Version 1.0 - 8 - eInfochips Confidential
IC
Integrated Circuit
Inc.
Incorporated
JTAG
Joint Test Application Group
LAN
Local Area Network
LPDDR
Lower Power DDR
MIPI
Mobile protocol working Alliance (not an Acronym)
MMC
Multi Media Card
MOSI
Master Out Slave In
MP
Mega Pixel
OTG
On The Go
PMIC
Power Management IC
RAM
Random Access Memory
RF
Radio Frequency
RoHS
Restriction of Hazardous Substances
Rx
Receive
SBC
Single Board Computer
SPI
Serial peripheral Interface
Tx
Transmit
UART
Universal Asynchronous Interface
USB
Universal Serial Bus
ADB
Android Debug Bridge
WLAN
Wireless LAN
Table 2 : Definition, Acronyms and Abbreviations

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1.3 References
No.
Document
Version
Remarks
1
ERAGON660 SBC Schematic File
1.1
2.
ERAGON660 IO Card Schematic File
1.1
Table 3 : References

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Version 1.0 - 10 - eInfochips Confidential
2License Agreement
The use of this document is subject to and governed by those terms and conditions in the eInfochips Ltd.
Purchase and Software License Agreement for the Qualcomm Snapdragon™ 660 based development
platform, which you or the legal entity you represent, as the case may be, accepted and agreed to when
purchasing ERAGON660 development platform from eInfochips Ltd. (“Agreement”). You may use this
document, which shall be consider as a part of the defined term “Documentation” for purposes of the
Agreement, solely in support of your permitted use of the ERAGON660 development platform under the
Agreement. Distribution of this document is strictly prohibited without the express written permission of
eInfochips Ltd. and its respective licensors, which they can withhold, condition or delay in its sole
discretion.
eInfochips is a trademark of eInfochips Ltd., registered in India, USA and other countries.
Qualcomm is a trademark of Qualcomm Inc., 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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Version 1.0 - 11 - eInfochips Confidential
3Preface
This document provides an overview of the ERAGON660 SBC and development kit based on the
Qualcomm Snapdragon™ 660. It provides step-by-step information about hardware components and
associated software release Android 8.1.0 (Oreo).
Intended Audience
This document is intended to be used by for technically qualified personnel. It is not intended for general
audiences.
Intended Use
The development platform supports a wide range of industry interfaces and offers a comprehensive
hardware and software design. It comes with Android software packages. This platform enables
developers to evaluate and create solutions targeted at various market segments while customers and
OEMs can build their products based on these designs directly or with customizations.

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4Overview
The ERAGON660 SBC provides an ideal building block for simple integration with a wide range of products
in target markets requiring rich multimedia functionality, powerful graphics processing and video
capabilities, as well as high-processing power, in a compact, RoHS compliant, fan less, cost effective SBC
with low power consumption.
The ERAGON660 SBC leverages cutting edge mobile computing for embedded and industrial product
designs, based on the Qualcomm Snapdragon™ 660 2.2 GHz octa core CPU, high performance Adreno™
512 GPU and a dedicated DSP for advanced A/V processing.
The SBC is equipped with full range of interfaces available in the Qualcomm Snapdragon SDA660 SoC,
which are routed on the 300 pins of three (100 pins each) board-to-board connectors.
The SDA660 SBC supports Android Oreo operating system (Version :- TBD)
The ERAGON660 Development kit is based on ERAGON660 SBC for the developers to quick start their
application development and is ideal for rapid prototyping of product. With support for almost all the
peripherals, it reduces the design time of innovative applications and helps to achieve early time to
market. With variety of peripherals, this kit is targeted for wide range of applications supporting bulk
storage, faster connectivity, higher through put and performance at lower power.

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Version 1.0 - 13 - eInfochips Confidential
Key Features
CPU
Qualcomm Snapdragon 660
8x Qualcomm® Kryo™ 260 CPU at up to
2.2 GHz per core
64-Bit processor
Qualcomm Adreno 512 GPU.
Up to 4K UltraHD capture @ 30 fps
Video Encode
Up to 4K UltraHD playback
@30fps,H.264(AVC),H.265(HEVC),VP9
Video Decode
2x Image Sensor Processor (ISP)
Qualcomm® Hexagon™ DSP with
Hexagon Vector eXtensions (dual-
HVX512) 787 MHz
Audio
PM660l(On SBC) :- Two single-ended and one
differential (microphone) inputs
Four outputs: EAR, HPHL + HPHR, and class-D
speaker driver
Supports 8, 16, 32, 44.1, 48, and 192 kHz sample
rates
WCD9335(On IO Card) :- IO Card has Audio
codec WCD9335 along with two Audio
Amplifiers WSA8810
• 3.5mm ANC Audio Jack
• 2x 16 pin Audio header which supports.
Input: 3xAnalog Mic, 3xDigital Mic
Output:
o 2x Stereo Amplified Output
o 2x External Headphone Output
o 1x Earphone Output
Memory
RAM:
Up to 6GB LPDDR4X Up to 1866MHz
Storage:
Up to 64 GB eMMC or UFS(Optional)
Connectivity
IEEE 802.11 a/b/g/n/ac
Bluetooth 5
Camera
Dual camera support (up to 16 MP)
3x MIPI CSI- 4 lane (2x CSI simultaneous
support)
Display
2x DSI 4-lane each
2560 x 1600 at 60fps
1080p at 30fps Miracast or 4k at 30fps.
DisplayPort and USB Type-C support
Operating System
Android 8.1.0
Multimedia
Audio and Video as mention above
USB
USB HUB for 2x USB 2.0 Host
1x USB 3.1 (Type-C) for high speed data
transfer
Miscellaneous
1x UART,2x I2C, 2x SPI, Sensors 3-Axis
Accelerometer , 3- Axis Gyroscope, Ambient
Light , Proximity ,1x JTAG ,1x microSD card,
Integrated Qualcomm GPS (Supports GPS,
GLONASS, BeiDou, Gallileo)
Power Input & Consumption
Voltage In: (1) +12V@3A through DC jack
(2) Battery through Battery connector
Physical & Operating Characteristics
Dimension:
oSBC: 85mm x 55mm
oIO Card: 160mm x 114mm
Storage Temperature Range:
o-20 to 70° C
Operating Temperature Range:
o0 to 50° C

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Applications
The ERAGON606 Kit is used in a wide range of products across many different target markets. Eragon660
of the typical applications are:
Consumer Electronics
Internet of Things
Marine
Automotive
Domestic Robot
Digital signage
Security & Surveillance
Biometric Access Control Systems
Home and Health Hub
Human-machine interface
Home energy management systems
In-flight entertainment
Intelligent industrial control systems
Portable medical

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Version 1.0 - 15 - eInfochips Confidential
5Getting Started
Prerequisites
Before user power up the ERAGON660 board for the first time, will need following things:
Sr No.
Details
MFG Part/EI Part
Qty :-
1
ERAGON660 (only SBC or SBC with
IO card) board
17_00515_01/17_00617_01
1
2
Eragon Display board
17_00453_02
1
3
Power adapter (12V@3A)
PTDA402D-120300
1
4
FFC Cable for connecting LCD display
to the ERAGON660 SBC Board
687640152002
1
Table 4 : Prerequisite table
Starting the board for the first time
To start the board, follow these simple steps:
Step 1. First, connect the ERAGON660 SBC Board to the Display board through FFC cable (DSI cable)
Step 2. Connect the Type C-USB cable to connector J13 of SBC
Step 3. Ensure that the boot switches SW3 are set to ‘0000’, all in off position.
Step 4. Connect the complaint power supply to power connector J9.
Step 5. On the switch SW2.
Now board is in the booting process.
Please note that the first boot takes several minutes due to Androids initialization. Subsequent boot
times should be faster.

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Version 1.0 - 18 - eInfochips Confidential
ERAGON660
6.1.1 ERAGON660 SBC (Single Board Computer) Image
Figure 3 –ERAGON660 Single Board Computer (SBC) Image

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The ERAGON660 SBC offers a wide range of interfaces and peripherals, including several high-speed
signals through its edge connectors. The major parts of ERAGON660 SBC are marked with labels in above
figures and the name of it is, are listed in the below table.
No.
Interface Name
No.
Interface Name
1
U.FL connector for WIFI+BT External
ANTENNA 1
14
Camera Connector (J2)
2
Volume Down Switch
15
Flash LED Connector
3
Volume Up Switch
16
Camera Connector (J1)
4
Power on Switch
17
BLSP Connectors
5
USB 3.1 Type-C Connector
18
U.FL connector for WIFI+BT External
ANTENNA 0
6
Battery Connector
19
U.FL connector for GPS ANTENNA
7
Display Connector
20
MIC 2 (microphone -2)
8
Speaker Connector
21
Boot Mode Configuration Switch
9
Input Supply ON/OFF Switch
22
Micro SD Card Connector
10
Input Supply Connector
23
Board to Board Connector (Left
Connector)
11
Debug USB Connector
24
Board to Board Connector (Right
Connector)
12
MIC 1 (microphone -1)
25
Board to Board Connector (Top
Connector)
13
Flash LED Connector
Table 5 : ERAGON660 SBC (Single Board Computer) Components

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6.1.2 ERAGON660 IO Card Image
Figure 4 –ERAGON660 IO Card Image

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The ERAGON660 IO Card offers a wide range of interfaces and peripherals, including several high-speed
signals through its edge connectors. The major parts of ERAGON660 IO Card are marked with labels in
above figures and the name of it is, are listed in the below table.
No.
Interface Name
No.
Interface Name
1
EXPANSION Connector (J4)
15
FAN Connector (J25)
2
LPI EXPANSION Connector (J8)
16
Board to Board Connector (J16)
3
4G LTE MODEM Connector (J11)
17
Board to Board Connector (J14)
4
U.FL connector for GPS ANTENNA (J6)
18
Board to Board Connector (J17)
5
SMA connector for GPS ANTENNA (J1)
19
Audio Board B TO B Connector (J20)
6
SMA connector for WIFI ANTENNA (J2)
20
Audio Board B TO B Connector (J21)
7
U.FL connector for WIFI ANTENNA (J5)
21
Analog Mic Connector (J24)
8
CSI1 Camera Connector (J7)
22
Digital Mic Connector (J22)
9
U.FL connector for WIFI ANTENNA (J10)
23
HEADSET (J19)
10
SMA connector for WIFI ANTENNA (J9)
24
Ethernet Connector (E1)
11
Audio Connector for HDMI_IN (J13)
25
USB Type A Dual Connector (USB1)
12
Flash LED Connector (J15)
26
SIM Card Connector (J26)
13
DSI1 Display Connection (J18)
27
SIM Card Connector (J27)
14
AUDIO FOR HDMI_OUT (J23)
Table 6 : ERAGON660 IO Card Components

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The Eragon660 SBC and IO Card are interfaced through three Hirose DF40C-100DP-0.4V (51) Connectors.
The pin outs for these three connectors is described below,
SBC Pin
No.
I/O Card
Pin No.
Signal Name
Default Pin Function
Voltage
Level
J16.1
J14.1
GND
Ground
-
J16.2
J14.2
GND
Ground
-
J16.3
J14.3
LPI_GPIO29_EXTR4
LPI_GPIO_29
1.8V
J16.4
J14.4
LPI_I2C_3_SDA
LPI_I2C_3_SDA
1.8V
J16.5
J14.5
LPI_GPIO26_EXTR1
LPI_GPIO26
1.8V
J16.6
J14.6
LPI_I2C_3_SCL
LPI_I2C_3_SCL
1.8V
J16.7
J14.7
LPI_GPIO27_EXTR2
LPI_GPIO27
1.8V
J16.8
J14.8
GND
Ground
-
J16.9
J14.9
GND
Ground
-
J16.10
J14.10
LPI_UART_2_TX
LPI_GPIO_14
1.8V
J16.11
J14.11
BLSP_I2C_SCL_6
BLSP 6 - I2C CLOCK
1.8V
J16.12
J14.12
LPI_UART_2_RX
LPI_GPIO_15
1.8V
J16.13
J14.13
BLSP_I2C_SDA_6
BLSP 6 - I2C DATA
1.8V
J16.14
J14.14
GND
Ground
-
J16.15
J14.15
GND
Ground
-
J16.16
J14.16
LPI_GPIO28_EXTR3
LPI_GPIO28
1.8V
J16.17
J14.17
HDMI_MI2S_3_SCK
MI2S Clock signal
1.8V
J16.18
J14.18
GND
Ground
-
J16.19
J14.19
HDMI_MI2S_3_D1
MI2S Data1 signal
1.8V
J16.20
J14.20
GND
Ground
-
J16.21
J14.21
HDMI_MI2S_3_WS
MI2S Word Select signal
1.8V

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J16.22
J14.22
VREG_L3A
PM660 Linear regulator L3 output
1.0V
J16.23
J14.23
HDMI_MI2S_3_D0
MI2S Data0 signal
1.8V
J16.24
J14.24
BLSP_I2C_SDA_2
BLSP 2 - I2C DATA
1.8V
J16.25
J14.25
HDMI_RST_N
HDMI RESET
1.8V
J16.26
J14.26
BLSP_I2C_SCL_2
BLSP 2 - I2C CLOCK
1.8V
J16.27
J14.27
HDMI_INT_GPIO
HDMI INTERRUPT
1.8V
J16.28
J14.28
VREG_L1A
PM660 Linear regulator L1 output
1.232V
J16.29
J14.29
VCC_1V8
1.8V Switching Regulator input
1.8V
J16.30
J14.30
VREG_L1A
PM660 Linear regulator L1 output
1.232V
J16.31
J14.31
VCC_1V8
1.8V Switching Regulator input
1.8V
J16.32
J14.32
GND
Ground
-
J16.33
J14.33
VCC_1V8
1.8V Switching Regulator input
1.8V
J16.34
J14.34
RESOUT_N
Reset out from CPU.
1.8V
J16.35
J14.35
GND
Ground
-
J16.36
J14.36
GND
Ground
-
J16.37
J14.37
GND
Ground
-
J16.38
J14.38
LTE_MODEM_DCD
LTE Modem Disable signal from
CPU/GPIO_88
1.8V
J16.39
J14.39
VREG_L19A
PM660 Linear regulator L19 output
3.3V
J16.40
J14.40
LTE_WIRELESS_POWER
GPIO_89/LTE Modem Antenna
control(no. 0)
1.8V
J16.41
J14.41
VREG_L19A
PM660 Linear regulator L19 output
3.3V
J16.42
J14.42
LTE_MODEM_DSR
LTE Modem Reset/ GPIO_85
1.8V
J16.43
J14.43
VREG_L19A
PM660 Linear regulator L19 output
3.3V
J16.44
J14.44
GND
Ground
-