Diamond Systems VEGA User manual

VEGA Single Board Computer
COM Express Form-factor Embedded Computer with
Configurable COM Express CPU and Integrated Data
Acquisition
Revision
Date
Comment
A.00
11/4/2014
Initial release
A.01
11/19/2015
Minor revisions
Copyright 2015
FOR TECHNICAL SUPPORT Diamond Systems Corp
PLEASE CONTACT: 555 Ellis Street
Mountain View, CA 94043 USA
[e-mail] Tel [phone]
Fax [phone]
www.diamondsystems.com

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CONTENTS
Important Safe-Handling Information.....................................................................................................................4
1. Introduction.......................................................................................................................................................6
1.1 Key Features .................................................................................................................................................6
1.1.1 COM Express Computer-on-Module (COM) Features .........................................................................6
1.1.2 Vega Baseboard Features....................................................................................................................7
1.2 Operating System Compatibility....................................................................................................................7
1.3 Vega SBC Models .........................................................................................................................................8
1.4 Thermal Considerations and Heatspreader ..................................................................................................8
1.5 Cable Kit........................................................................................................................................................9
2. Functional Overview...................................................................................................................................... 10
2.1 Block Diagrams........................................................................................................................................... 10
2.2 Functional Overview................................................................................................................................... 12
2.2.1 CPU Core........................................................................................................................................... 12
2.2.2 Video.................................................................................................................................................. 12
2.2.3 Ethernet.............................................................................................................................................. 12
2.2.4 USB.................................................................................................................................................... 12
2.2.5 Serial Ports ........................................................................................................................................ 12
2.2.6 High Definition Audio ......................................................................................................................... 12
2.2.7 Data Acquisition................................................................................................................................. 13
2.2.8 I/O Expansion .................................................................................................................................... 13
2.2.9 Power Supply..................................................................................................................................... 13
2.2.10 Battery Backup................................................................................................................................... 13
2.3 BIOS ........................................................................................................................................................... 14
2.3.1 BIOS Setup........................................................................................................................................ 14
2.4 Board Layout .............................................................................................................................................. 15
2.5 Interface Connector Summary.................................................................................................................... 17
2.6 Configuration Jumper Summary................................................................................................................. 18
3. Interface Connector Details.......................................................................................................................... 18
3.1 SATA (J2)................................................................................................................................................... 18
3.2 LCD2 LVDS Interface (J5).......................................................................................................................... 18
3.3 Analog I/O (J8)............................................................................................................................................ 19
3.4 Digital I/O (J10)........................................................................................................................................... 19
3.5 Gigabit Ethernet (J11, J12)......................................................................................................................... 20
3.6 Serial Ports (J14, J15)................................................................................................................................ 20
3.7 USB Flashdisk (J16)................................................................................................................................... 20
3.8 USB (J17, J18) ........................................................................................................................................... 21
3.9 Utility (J19).................................................................................................................................................. 21
3.10 LCD Panel (LVDS Interface) (J20)............................................................................................................. 22
3.11 LCD Backlight (J21).................................................................................................................................... 22
3.12 Audio (J22) ................................................................................................................................................. 23
3.13 EMX I/O Expansion (J23)........................................................................................................................... 23
3.14 External Battery (J24)................................................................................................................................. 24
3.15 PCIe MiniCard / mSATA (J27).................................................................................................................... 24
3.16 VGA (J28)................................................................................................................................................... 24
3.17 Input Power (J29) ....................................................................................................................................... 25
3.18 Display Port (DP1)...................................................................................................................................... 25
4. Configuration Jumper Details ...................................................................................................................... 26
4.1 Digital I/O Output Resistors and FPGA Base Address (JP1)..................................................................... 26
4.2 RS-422/485 Termination Resistors (JP2)................................................................................................... 26
4.3 LCD Supply Voltage (JP3).......................................................................................................................... 27
4.4 LCD Backlight Power (JP4)........................................................................................................................ 27
4.5 LCD Panel Scan Direction & Map Setting (JP5) ........................................................................................ 27
5. BIOS ................................................................................................................................................................ 28
5.1 BIOS Main Setup Screen ........................................................................................................................... 28
5.2 Advanced Settings...................................................................................................................................... 29
5.3 Chipset Settings.......................................................................................................................................... 32
5.4 Boot Settings .............................................................................................................................................. 35
5.5 Security Settings......................................................................................................................................... 36
5.6 Save & Exit Settings................................................................................................................................... 37
6. Analog I/O Operation..................................................................................................................................... 38

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6.1 A/D Input Ranges and Resolution.............................................................................................................. 38
6.2 Unipolar and Bipolar Inputs ........................................................................................................................ 38
6.3 Ranges and Resolutions ............................................................................................................................ 38
6.3.1 Conversion Formulas......................................................................................................................... 39
6.4 A/D Control Signals .................................................................................................................................... 40
6.5 A/D Sampling Methods............................................................................................................................... 42
6.5.1 Sampling Modes ................................................................................................................................ 42
6.5.2 FIFO Description................................................................................................................................ 43
6.5.3 Scan Sampling................................................................................................................................... 44
6.5.4 Sequential Sampling.......................................................................................................................... 44
6.6 A/D Conversion........................................................................................................................................... 44
6.6.1 Select the Input Channel.................................................................................................................... 45
6.6.2 Select the Input Range ...................................................................................................................... 46
6.6.3 Wait for Analog Input Circuit to Settle................................................................................................ 46
6.6.4 Perform an A/D Conversion on the Current Channel ........................................................................ 46
6.6.5 Wait for the Conversion to Finish....................................................................................................... 46
6.6.6 Read the Data from the Board........................................................................................................... 46
6.6.7 Convert the numerical data to a meaningful value ............................................................................ 47
6.6.8 A/D Conversion Using Interrupts ....................................................................................................... 47
6.7 D/A Conversion........................................................................................................................................... 48
7. Pulse Width Modulators................................................................................................................................ 50
8. Waveform Generator ..................................................................................................................................... 51
9. Digital I/O Operation ...................................................................................................................................... 52
10. Counter/Timer Operation .............................................................................................................................. 53
11. FlashDisk Modules ........................................................................................................................................ 55
11.1 Installing the Flashdisk Module .................................................................................................................. 55
12. Specifications................................................................................................................................................. 56
12.1 System........................................................................................................................................................ 56
12.2 Data Acquisition.......................................................................................................................................... 56
12.3 Mechanical & Environmental...................................................................................................................... 57

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IMPORTANT SAFE-HANDLING INFORMATION
WARNING!
ESD-Sensitive Electronic Equipment.
Observe ESD-safe handling procedures when working with this
product.
Always use this product in a properly grounded work area and wear
appropriate ESD-preventive clothing and/or accessories.
Always store this product in ESD-protective packaging when not in
use.
Safe Handling Precautions
Vega contains numerous I/O connectors that connect to sensitive electronic components. This creates many
opportunities for accidental damage during handling, installation and connection to other equipment. The list here
describes common causes of failure found on boards returned to Diamond Systems for repair. This information is
provided as a source of advice to help you prevent damaging your Diamond (or any vendor’s) embedded
computer boards.
ESD damage —This type of damage is almost impossible to detect, because there is no visual sign of failure or
damage. The symptom is that the board simply stops working because some component becomes defective.
Usually the failure can be identified and the chip can be replaced.
To prevent ESD damage, always follow proper ESD-prevention practices when handling computer boards.
Damage during handling or storage —On some boards, we have noticed physical damage from mishandling.
A common observation is that a screwdriver slipped while installing the board, causing a gouge in the PCB
surface and cutting signal traces or damaging components.
Another common observation is damaged board corners, indicating the board was dropped. This may or may not
cause damage to the circuitry, depending on what is near the corner. Most of our boards are designed with at
least 25 mils clearance between the board edge and any component pad, and ground / power planes are at least
20 mils from the edge to avoid possible shorting from this type of damage. However, these design rules are not
sufficient to prevent damage in all situations.
A third cause of failure is when a metal screwdriver tip slips, or a screw drops onto the board while it is powered
on, causing a short between a power pin and a signal pin on a component. This can cause overvoltage / power
supply problems described below. To avoid this type of failure, only perform assembly operations when the
system is powered off.
Sometimes boards are stored in racks with slots that grip the edge of the board. This is a common practice for
board manufacturers. However, our boards are generally very dense, and if the board has components very close
to the board edge, they can be damaged or even knocked off the board when the board tilts back in the rack.
Diamond recommends that all our boards be stored only in individual ESD-safe packaging. If multiple boards are
stored together, they should be contained in bins with dividers between boards. Do not pile boards on top of each
other or cram too many boards into a small location. This can cause damage to connector pins or fragile
components.
Power supply wired backwards —Our power supplies and boards are not designed to withstand a reverse
power supply connection. This will destroy each IC that is connected to the power supply. In this case the board
will most likely will be unrepairable and must be replaced. A chip destroyed by reverse power or by excessive
power will often have a visible hole on the top or show some deformation on the top surface due to vaporization
inside the package. Check twice before applying power!
Board not installed properly in PC/104 stack —A common error is to install a PC/104 board accidentally
shifted by 1 row or 1 column. If the board is installed incorrectly, it is possible for power and ground signals on the
bus to make contact with the wrong pins on the board, which can damage the board. For example, this can
damage components attached to the data bus, because it puts the 12V power supply lines directly on data bus
lines.

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Overvoltage on analog input —If a voltage applied to an analog input exceeds the design specification of the
board, the input multiplexor and/or parts behind it can be damaged. Most of our boards will withstand an
erroneous connection of up to 35V on the analog inputs, even when the board is powered off, but not all boards,
and not in all conditions.
Overvoltage on analog output —If an analog output is accidentally connected to another output signal or a
power supply voltage, the output can be damaged. On most of our boards, a short circuit to ground on an analog
output will not cause trouble.
Overvoltage on digital I/O line —The digital circuitry can be damaged if a digital I/O signal is connected to a
voltage above the Vega’s maximum specified voltage. On most of our boards the acceptable range of voltages
connected to digital I/O signals is 0-5V, and they can withstand about 0.5V beyond that (-0.5 to 5.5V) before being
damaged. However logic signals at 12V and even 24V are common, and if one of these is connected to a 5V logic
chip, the chip will be damaged, and the damage could even extend past that chip to others in the circuit.
Bent connector pins —This type of problem is often only a cosmetic issue and is easily fixed by bending the
pins back to their proper shape one at a time with needle-nose pliers. The most common cause of bent connector
pins is when a PC/104 board is pulled off the stack by rocking it back and forth left to right, from one end of the
connector to the other. As the board is rocked back and forth it pulls out suddenly, and the pins at the end get
bent significantly. The same situation can occur when pulling a ribbon cable off of a pin header. If the pins are
bent too severely, bending them back can cause them to weaken unacceptably or even break, and the connector
must be replaced.

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1. INTRODUCTION
Vega is an embedded single board computer in the COM Express form factor that mates an off-the-shelf COM
Express COM CPU with an I/O baseboard that provides a wealth of PC I/O, a complete data acquisition sub-
system, and a DC/DC power supply.
Vega’s core embedded-PC functionality is implemented with a COM Express CPU module mounted on the
bottom side of an I/O baseboard. This approach results in several benefits including enhanced thermal
management, increased space for I/O functions and interface connectors, and scalable processing power.
Accordingly, Vega integrates the equivalent functions of five embedded boards —CPU, system I/O, industry-
leading data acquisition, Gigabit Ethernet, and a wide-input DC-to-DC power supply —all within the compact and
modularly-expandable EMX Basic single board computer form-factor.
Thanks to Vega’s modular architecture, you can select from a wide range of COM Express-based CPUs to meet
each application’s specific performance, power, and cost requirements. Available processors include an Intel
2.1GHz Core i7 and 1.4GHz Celeron CPU. What’s more, Vega’s on-board EMX stack location facilitates the
addition of both custom and off-the-shelf I/O expansion modules to tune system functionality to the application’s
precise requirements.
Vega is offered in a range of models that vary according to the choice of COM Express CPU module, on-board
SO-DIMM SDRAM capacity, variable-input DC/DC supply, and optional data acquisition circuitry.
1.1 Key Features
Vega’s extensive set of features derives from functions present on the Vega I/O baseboard plus additional
functions provided by the attached COM Express computer-on-module (COM) macrocomponent. Both are
summarized below.
1.1.1 COM Express Computer-on-Module (COM) Features
Processor: Choice of Intel® 2.1GHz Core i7-3612QE, 1.7GHz Core i7-3517UE, or 1.4GHz Celeron 827E CPU
RAM: 200-pin SO-DIMM socket; supports up to 8GB DDR3 SDRAM
Graphics:
Integrated Intel HD Graphics 3000
Supports dual independent displays
VGA CRT interface up to 2048 x 1536 at 60Hz
LCD flat panel interface (LVDS); provides LCD backlight control signals
DisplayPort
Audio: HD audio Realtek ALC262 CODEC on I/O baseboard; mic in, stereo in/out signals
Mass storage: 1 SATA interface
Ethernet interface: 1 10/100/1000Mbps port (magnetics provided on I/O baseboard)
USB: 4 USB 2.0 ports
Other: SMB, LPC, PCIe
COM Express, Type II compliant form-factor (physical and electrical)

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1.1.2 Vega Baseboard Features
Additional Ethernet interface: 10/100/1000Base-T port
4 RS-232/422/285 serial ports supporting TX, RX, RTS and CTS
Industry-leading data acquisition subsystem (available on A models only):
16 16-bit A/D inputs usable as: 16 single-ended / 8 differential
100KHz maximum aggregate sampling rate for gains 4 and 8
250KHz maximum aggregate sampling rate for gains below 4
Programmable input ranges: +/-10V, +/-5V, +/-2.5V, +/-1.25V, 0-10V, 0-5V, 0-2.5V
2048 A/D FIFO
8 16-bit D/A channels
+/-10V and 0-10V output ranges
30 programmable bidirectional digital I/O lines with 3.3V logic, arranged in three groups of 8 signals
4 24-bit pulse width modulators
8-channel waveform generator
8 32-bit counter/timers
On-board EEPROM storage of auto-calibration values
Status LEDs:
Power LED
Ethernet link and speed LEDs
COM Express socket on bottom; conforms to COM Express v3.0 specification
I/O connectors provided for all I/O
mSATA and USB flashdisk socket supports up to 64GB
PCIe MiniCard socket
EMX I/O stackable expansion
Built-in DC/DC power supply:
Input voltage: +7V to +36V DC/DC power supply
Power consumption: VEGA-3612QE-4GA -- 14.52W at 12V typical
VEGA-3517UE-4GA -- 13.93W at 12V typical
VEGA-827E-2GA -- 14.7W at 12V typical
Output voltages: +5V, +3.3V
Switched outputs: +5V, +12V, +3.3V
Operating temperature: -40°C to +85°C
Operating humidity: 5% to 95% non-condensing
Form-factor:
4.92 x 3.74 inches (125 x 95 mm)
COM Express dimensions and mounting holes
1.2 Operating System Compatibility
Vega’s operating system compatibility depends on both the Vega baseboard and the specific COM Express CPU
module attached to it. The baseboard has been qualified for use with the following operating systems:
Windows Embedded Standard 7, Windows Embedded CE
Linux v2.6.23
The operating systems supported by the COM Express CPU module vary according to the specific COM Express
module used. Consult the appropriate COM Express CPU module’s user manual for details on its operating
system support.

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1.3 Vega SBC Models
Several models of the Vega SBC are available with different COM Express CPU modules, memory, and optional
on-board data acquisition circuitry. These models are described in the following table.
Model Number
Description
VEGA-3612QE-8GA
Vega SBC, 2.1GHz Intel Core i7-3612QE CPU, 8GB RAM, full data acquisition
VEGA-3612QE-8GN
Vega SBC, 2.1GHz Intel Core i7-3612QE CPU, 8GB RAM, no data acquisition
VEGA-3612QE-4GA
Vega SBC, 2.1GHz Intel Core i7-3612QE CPU, 4GB RAM, full data acquisition
VEGA-3612QE-4GN
Vega SBC, 2.1GHz Intel Core i7-3612QE CPU, 4GB RAM, no data acquisition
VEGA-3517UE-4GA
Vega SBC, 1.7GHz Intel Core i7-3517UE CPU, 4GB RAM, full data acquisition
VEGA-3517UE-4GN
Vega SBC, 1.7GHz Intel Core i7-3517UE CPU, 4GB RAM, no data acquisition
VEGA-827E-2GA
Vega SBC, 1.4GHz Intel Celeron 827E CPU, 2GB RAM, full data acquisition
VEGA-827E-2GN
Vega SBC, 1.4GHz Intel Celeron 827E CPU, 2GB RAM, no data acquisition
1.4 Thermal Considerations and Heatspreader
All models of Vega are specified for an operating temperature range of -40oC to +85oC. Diamond Systems
provides a heatspreader attached to the Vega SBC as a conductive cooled thermal layer. However, this
heatspreader by itself does not constitute the complete thermal solution necessary for any specific
implementation, but provides a common interface between the single board computer and the customer’s
implementation-specific thermal solution.
The outside surface of the Vega heatspreader must be kept at a temperature not to exceed +85oC. If your
environment causes the temperature on the outside surface of the heatspreader to exceed the appropriate
temperature, you are responsible for removing the additional heat from the system through either an additional
passive thermal solution or fan solution.
Vega’s integrated heatspreader makes thermal contact with the heat generating components and provides a flat
surface on the bottom of the assembly for mating to the system enclosure. This technique facilitates efficient
removal of heat from the COM module without the need for a fan. Four mounting holes on the bottom of the
conduction cooled heatspreader are provided to mount Vega in an enclosure or to a bulkhead. These mounting
holes are #6-32 threaded holes on 2.8" centers.

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1.5 Cable Kit
The Vega cable kit (part number (CK-VEGA-01) provides convenient access to all of Vega’s I/O features. The kit’s
cables are shown in the photo below and are identified in the table that follows.
The components of the Vega Cable Kit are listed below.
Item
Qty
Diamond P/N
Description
Connects to…
1
2
6980808
Dual serial cable
J14, J15
2
1
6981501
Utility cable
J19
3
1
6981503
Power input cable
J29
4
2
6981504
Data acquisition cable
J8, J10
5
2
6981315
Gigabit Ethernet cable
J11, J12
6
2
6981317
Dual USB cable
J17, J18
7
1
6981323
HD audio cable
J22
8
1
6981324
VGA cable
J28

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2. FUNCTIONAL OVERVIEW
2.1 Block Diagrams
Figure 1 shows the functional blocks of the Vega I/O baseboard. As indicated in the block diagram, the baseboard
circuitry primarily comprises the data acquisition subsystem, Gigabit Ethernet controller, DC/DC power supply,
and I/O interfaces. The COM Express module integrates to the I/O baseboard via connectors A/B and C/D and
provides the system’s core embedded PC functionality.
Although COM Express CPU module processors and precise functions vary between specific modules, the block
diagram of a typical COM Express CPU module is shown in Figure 2.
Figure 1: Vega I/O Baseboard Functional Block Diagram

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Figure 2: Typical COM Express CPU Module Functional Block Diagram

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2.2 Functional Overview
This section describes the major Vega subsystem.
2.2.1 CPU Core
Vega’s core embedded computer is based on a COM Express CPU offering a choice of an Intel® 2.1GHz Core i7-
3612QE or 1.4GHz Celeron 827E CPU. The COM Express COM module provides the standard PC I/O for the
Vega system as described in the following sections.
2.2.2 Video
The VGA and LVDS signals from the COM Express connector are connected to on-board connectors. LCD power
may be jumper-selected for +3.3VDC or +5VDC. Backlight power may be jumper-selected for +5VDC or +12VDC.
Both voltages are generated on-board. Several of the PEG pins from the second (C/D) COM Express connector
are routed to a connector that can be used to attach a daughter card to the EMX Baseboard.
2.2.3 Ethernet
Vega provides an Intel 82574IT Gigabit Ethernet Controller attached to the first x1 PCI express lane on the
processor. The board also includes the magnetics to support the 82574IT controller and the Gigabit LAN interface
from the COM Express CPU.
2.2.4 USB
Vega offers four user accessible USB 2.0 ports. All ports have minimum 500mA per port drive capability with short
circuit / over current and ESD protection on each port. Ports 1-4 are brought out to I/O connectors for user
access. A separate USB connector is provided for mounting a solid state bootable USB flashdisk module with
capacity up to 8GB.
2.2.5 Serial Ports
Vega provides four serial ports with full RS-232/422/485 protocol support and TX, RX, RTS and CTS signal
availability. The SCH3114 provides maximum data rates of 460.8k. Jumper configurable 120-ohm termination
resistors are available for RS-485 mode.
2.2.6 High Definition Audio
The high definition Audio signals from the COM Express attached processor are connected to the ALC262 HD-
Audio Codec. The ALC262 will support Stereo Line-in, Stereo Line-out and Mono MIC on an on-board connector.

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2.2.7 Data Acquisition
The board provides the following data acquisition capabilities.
Type of I/O
Characteristics
Analog Input
16 single-ended/8 differential inputs, 16-bit resolution
250KHz maximum aggregate A/D sampling rate for gains below 4
100KHz maximum aggreagte A/D sampling rate for gains 4 and 8
Programmable input ranges/gains:
+/-10V, +/-5V, +/-2.5V, +/-1.25V, 0-10V, 0-5V, 0-2.5V
2048 sample A/D FIFO for reliable high-speed sampling
Analog Output
8 analog outputs, 16-bit resolution
±10V and 0-10V output ranges
Indefinite short circuit protection on outputs
Digital I/O
30 programmable digital I/O, 3.3V logic compatible
Counter/Timers
One 32-bit counter/timer for A/D sampling rate control
One 16-bit counter/timer for user counting and timing functions
On board I2C flash EEROM is provided for auto-calibration value storage.
2.2.8 I/O Expansion
The Vega baseboard supports a standard PCIe MiniCard socket. It uses the x1 PCIe (Port 1) from the COM
Express attached processor. One of the USB ports (Port 1) from the COM Express connector is terminated to the
PCIe MiniCard socket. This may be used to plug-in WiFi Modules and Memory devices. The PCIe MiniCard
module is fastened to the board by means of screws and soldered spacers.
The 120 pin EMX connector provides the means for adding expansion I/O modules. The connector supports the
following functions: Four PCIe x1, one PCIe x4 (not connected on the EMX Baseboard), three USB, one SATA (a
second SATA for future expansion), LPC, SMBus.
2.2.9 Power Supply
The Vega baseboard provides power for both the COM Express attached processor board and the EMX I/O
expansion boards. All the necessary power supply voltages are derived from a variable +7VDC to +36VDC input,
using onboard discrete-design DC/DC converter circuits These supplies include the standby supplies for the
COM Express connector.
2.2.10 Battery Backup
The Vega baseboard includes a backup battery for CMOS RAM backup and real-time clock for the attached
processor module. A 2-pin header is provided for an external battery connection. The power for battery backup
can be augmented by an expansion I/O module connected to the EMX connector.

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2.3 BIOS
The AMI BIOS includes the following key features:
Boot from LAN (PXE) and USB as well as C: and D:
User selectable Master boot device selection
Free boot sequence configuration
Support for various LCD configurations supported by the video chipset
Console (display and keyboard) redirection to serial port
BIOS recovery through USB attached storage or other means
Configurable default settings in battery-less configurations
Initialize USB keyboard & mouse
Customizable splash screen
2.3.1 BIOS Setup
The Vega COM Express CPU module’s BIOS ROM provides a wide range of configuration options. When you
power up the Vega SBC, you can immediately enter the BIOS “Setup” utility (prior to OS boot-up) in order to
adjust BIOS settings to match your system’s peripheral devices and other requirements, and to configure various
other hardware and software parameters.
Options configurable via Setup typically include:
Number and type of mass storage devices
Boot device priority
Video display type and resolution
SATA, serial, and parallel interface modes and protocols
PCI and PnP configuration
Power management setup
Automatic power-up after LAN connection, RTC alarm, power resumption, etc.
System monitoring and security functions
The precise configuration options available via the BIOS Setup utility —and the specific keystroke sequence
required to launch Setup on power-up —vary according to the specific COM Express CPU module attached to
the Vega baseboard. Refer to the COM Express CPU module’s user manual for further details.

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2.4 Board Layout
Figure 3 illustrates the location of connectors and jumpers on the top side of the Vega I/O baseboard. Figure 4
illustrates the location of connectors on the COM Express CPU. The COM Express CPU module attaches on the
baseboard’s bottom side.
Figure 3: Vega I/O Baseboard Top View
J10
J8
J12
J29
JP1
J11
JP2
J15
J22
J18
J17
J16
J27
J19
J28
J21
J20
J23
J2
J5
EXT
BAT
JP4
JP5
JP3
J14
J24

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Figure 4: COM Express CPU Bottom View
DP1

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2.5 Interface Connector Summary
The table below summarizes the functions of Vega’s interface, utility, and power connectors. The table also
identifies which major subsystem —COM Express CPU module or Vega I/O baseboard —provides the
electronics associated with each connector.
Signal functions relating to all of Vega’s interfaces connectors are discussed in greater detail in Section 6.
Interface Function
Connector
Designation
Associated
Subsystem
Supported by
Cable Kit
SATA
J2
COM Express
CPU module
No
LCD2 LVDS Interface
J5
Vega baseboard
No
Analog I/O
J8
Vega baseboard
Yes
Digital I/O
J10
Vega baseboard
Yes
Gigabit Ethernet Port 1
J11
Vega baseboard
Yes
Gigabit Ethernet Port 0
J12
COM Express
CPU module
Yes
Serial Ports COM1-COM4
J14, J15
Vega baseboard
Yes
USB Flashdisk
J16
Vega baseboard
No
USB 2.0
J17, J18
COM Express
CPU module
Yes
Utility Signals
J19
Vega baseboard
Yes
LCD1 LVDS Interface
J20
COM Express
CPU module
No
LCD Backlight
J21
COM Express
CPU module
No
Audio
J22
Vega baseboard
Yes
EMX I/O expansion
J23
Vega baseboard
No
External Battery
J24
Vega baseboard
No
PCIe MiniCard/mSATA socket
J27
Vega baseboard
No
VGA Display
J28
COM Express
CPU module
Yes
Input Power
J29
Vega baseboard
Yes
External battery
EXT BAT
Vega baseboard
No
Display Port
DP1
COM Express CPU
No
Note: COM Express COM I/O functions vary according to the specific COM Express module that is
attached to the Vega baseboard. For further details on functions listed above that are generated by
the COM Express CPU module, consult the specific COM Express CPU module’s user manual.

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2.6 Configuration Jumper Summary
The Vega baseboard’s configuration jumper blocks are listed below. Details regarding the use of these jumpers
appear in Section 5 of this document.
Jumper
Description
JP1
Digital I/O output resistors and FPGA base address
JP2
RS-422/485 termination resistors
JP3
LCD supply voltage
JP4
LCD backlight power
JP5
LCD panel scan direction and map setting
3. INTERFACE CONNECTOR DETAILS
This section describes functions associated with the Vega I/O baseboard’s EMX bus expansion stack, utility, and
power interface connectors in greater detail. Refer to Section 3 of this document for information regarding mating
cable assemblies that are provided in the Vega Cable Kit.
3.1 SATA (J2)
The SATA connector is an industry-standard right-angle connector. It is mounted flush with the edge of the board
so that a standard SATA cable can be used to connect the board to an external hard drive.
3.2 LCD2 LVDS Interface (J5)
J5 is a second LCD connector to support dual channel LCD panels.
D3+
1
2
D2+
D3-
3
4
D2-
Signal Gnd
5
6
Signal Gnd
D1+
7
8
D0+
D1-
9
10
D0-
Signal Gnd
11
12
Signal Gnd
Clock+
13
14
VLCD
Clock-
15
16
VLCD
Power Gnd
17
18
Power Gnd
DDC Data
19
20
DDC Clock
Connector description: JST SM20B-GHDS-G-TF 2x10 right angle 1.25mm pitch gold
Connector part number: JST GHDR-20V-S

Vega SBC User Manual A.01 www.diamondsystems.com Page 19
3.3 Analog I/O (J8)
Connector J8 provides the analog I/O signals from the on-board data acquisition circuitry. There are no ESD
protection diodes for these signals. This funtionality is only available on Vega A models.
VIN0
1
2
VIN8
VIN1
3
4
VIN9
VIN2
5
6
VIN10
VIN3
7
8
VIN11
VIN4
9
10
VIN12
VIN5
11
12
VIN13
VIN6
13
14
VIN14
VIN7
15
16
VIN15
AGND_DAQ
17
18
AGND_DAQ
VOUT0
19
20
VOUT1
VOUT2
21
22
VOUT3
VOUT4
23
24
VOUT5
VOUT6
25
26
VOUT7
AUX_IO0R
27
28
AUX_IO1R
EXTRIGR
29
30
GND
Connector description: CONN,2x15P,1.5MM,LOCK,SH,R/A,SMT
Connector part number: JST, SM30B-ZPDSS-TF
3.4 Digital I/O (J10)
Connector J10 provides the digital I/O signals from the on-board data acquisition circuitry. These signals
originate with the FPGA and have ESD protection diodes. The digital I/O is organized in four groups (A, B, C, and
D). Ports A, B and C have eight signals each and Port D consists of 6 signals. Ports C and D also offer special
counter/timer, pulse width modulator, and waveform generator functions.
PA0R
1
2
PA1R
PA2R
3
4
PA3R
PA4R
5
6
PA5R
PA6R
7
8
PA7R
PB0R
9
10
PB1R
PB2R
11
12
PB3R
PB4R
13
14
PB5R
PB6R
15
16
PB7R
PC0R
17
18
PC1R
PC2R
19
20
PC3R
PC4R
21
22
PC5R
PC6R
23
24
PC7R
AUX_IO2R
25
26
AUX_IO3R
TOUT0R
27
28
GND
+5V
29
30
GND
Connector description: CONN,2x15P,1.5MM,LOCK,SH,R/A,SMT
Connector part number: JST, SM30B-ZPDSS-TF

Vega SBC User Manual A.01 www.diamondsystems.com Page 20
3.5 Gigabit Ethernet (J11, J12)
The Vega SBC provides two Gigabit Ethernet ports, one provided directly from the COM Express COM CPU (J12)
and the other generated on the Vega I/O baseboard (J11). The connector pinout for both ports is identical.
DA+
1
2
DB+
DA-
3
4
DB-
DC+
5
6
DD+
DC-
7
8
DD-
CGND
9
10
NC
Connector description: CONN,2x5P,1.5MM,LOCK,SH,R/A,SMT
Connector part number: JST, SM10B-ZPDSS-TF
3.6 Serial Ports (J14, J15)
The Vega I/O baseboard provides four serial ports on two pin headers, two ports on each. Connector J14
provides signals for Port 1 and Port 2. Connector J15 provides signals for Port 3 and Port 4.
All four ports support RS-232/422/485 multiprotocol with the TX, RX, RTS and CTS signals. The connector pinout
for both ports is identical.
Protocol
Port#
RS-232
RS-422
Full Duplex
RS-485
Half Duplex
Port 1
TX1
1
2
RX1
TX1+
1
2
RX1+
TX1+/RX1+
1
2
NC
GND
3
4
GND
GND
3
4
GND
GND
3
4
GND
RTS1
5
6
CTS1
TX1-
5
6
RX1-
TX1-/RX1-
5
6
TX2-/RX2-
Port 2
CTS2
7
8
RTS2
RX2-
7
8
TX2-
NC
7
8
NC
RX2
9
10
TX2
RX2+
9
10
TX2+
NC
9
10
TX2+/RX2+
Port 3
TX3
1
2
RX3
TX3+
1
2
RX3+
TX3+/RX3+
1
2
NC
GND
3
4
GND
GND
3
4
GND
GND
3
4
GND
RTS3
5
6
CTS3
TX3-
5
6
RX3-
TX3-/RX3-
5
6
TX4-/RX4-
Port 4
CTS4
7
8
RTS4
RX4-
7
8
TX4-
NC
7
8
NC
RX4
9
10
TX4
RX4+
9
10
TX4+
NC
9
10
TX4+/RX4+
Connector description: CONN,2x5P,1.5MM,LOCK,SH,R/A,SMT
Connector part number: JST, SM10B-ZPDSS-TF
3.7 USB Flashdisk (J16)
Connector J16 hosts an on-board USB flashdisk. This is a dedicated USB port.
+5V
1
2
NC
USB0 Data-
3
4
NC
USB0 Data+
5
6
NC
GND
7
8
NC
KEY
9
10
NC
Connector description: CONN HEADER 2MM DUAL SMD 10POS
Connector part number: Sullins, NRPN052MAMS-RC