VersaLogic VL-EPU-3311 Quick user guide

Hardware
Reference
Manual
REV. November 2020
Osprey
(VL-EPU-3311)
Intel®Atom™ E38xx-based
Embedded Processing Unit with
SATA, Ethernet, USB, Serial,
Video, Mini PCIe Sockets, and
microSD.

VL-EPU-3311 Reference Manual ii
WWW.VERSALOGIC.COM
12100 SW Tualatin Road
Tualatin, OR 97062-7341
[phone]
Fax [phone]
Copyright © 2016-2020 VersaLogic Corp. All rights reserved.
Notice:
Although every effort has been made to ensure this document is error-free, VersaLogic makes no
representations or warranties with respect to this product and specifically disclaims any implied warranties
of merchantability or fitness for any particular purpose.
VersaLogic reserves the right to revise this product and associated documentation at any time without
obligation to notify anyone of such changes.
† Other names and brands may be claimed as the property of others.

VL-EPU-3311 Reference Manual iii
Product Revision Notes
Revision 1.10 Updated CBR-4005 image (Figure 26)
Revision 1.09 Added GPIO voltage information on page 37 (The second bullet)
Revision 1.08 Updated BIOS Setup section.
Revision 1.06 Updated ground notice (page iv)
Revision 1.05 Updated the cable kit name on page 65
Revision 1.04
Added the part number and mating connector information for the I/O paddleboard on
page 53
Revision 1.03 Updated Web links
Revision 1.02 Updated Figure 4
Revision 1.01 Added Mini DisplayPort cable options
Revision 1.00 First release
Support Page
The Osprey Product Page contains additional information and resources for this product
including:
Operating system information and software drivers
Data sheets and manufacturers’ links for chips used in this product
BIOS information and upgrades
Customer Support
If you are unable to solve a problem after reading this manual, visiting the product support page,
or searching the KnowledgeBase, contact VersaLogic Technical Support at [phone].
VersaLogic support engineers are also available via e-mail at [email protected].
Repair Service
If your product requires service, you must obtain a Returned Material Authorization (RMA)
number by calling 503-747-2261. Be ready to provide the following information:
Your name, the name of your company, your phone number, and e-mail address
The name of a technician or engineer that can be contacted if any questions arise
The quantity of items being returned
The model and serial number (barcode) of each item
A detailed description of the problem
Steps you have taken to resolve or recreate the problem
The return shipping address
Warranty Repair All parts and labor charges are covered, including return shipping
charges for UPS Ground delivery to United States addresses.

VL-EPU-3311 Reference Manual iv
Non-warranty Repair All approved non-warranty repairs are subject to diagnosis and labor
charges, parts charges and return shipping fees. Specify the shipping
method you prefer and provide a purchase order number for invoicing
the repair.

Note:
Mark the RMA number clearly on the outside of the box before returning.
Cautions
Electrostatic Discharge
CAUTION:
Electrostatic discharge (ESD) can damage circuit boards, disk drives, and other
components. The circuit board must only be handled at an ESD workstation. If an
approved station is not available, some measure of protection can be provided by
wearing a grounded antistatic wrist strap. Keep all plastic away from the board, and do
not slide the board over any surface.
After removing the board from its protective wrapper, place the board on a grounded,
static-free surface, component side up. Use an antistatic foam pad if available.
The board should also be protected inside a closed metallic antistatic envelope during
shipment or storage.

Note:
The exterior coating on some metallic antistatic bags is sufficiently conductive to cause
excessive battery drain if the bag comes in contact with the bottom side of the Osprey.
Handling Care
CAUTION:
Avoid touching the exposed circuitry with your fingers when handling the board. Though
it will not damage the circuitry, it is possible that small amounts of oil or perspiration on
the skin could have enough conductivity to cause the contents of CMOS RAM to
become corrupted through careless handling, resulting in CMOS resetting to factory
defaults.
Ground Requirement
CAUTION:
All mounting standoffs are signal ground. For example, if metal standoffs are used to
mount to an earth-grounded chassis, it is highly recommended to isolate the standoffs
from the chassis.

VL-EPU-3311 Reference Manual v
KNOWN ISSUES
Hardware
A microSD card cannot be removed or inserted if certain cables are attached to the micro
USB 3.0 connector. Many USB 3.0 cables have a housing that is thick enough to obstruct
access to the microSD socket. Some cables may not produce this limitation.
The micro USB 3.0 connector can be damaged (that is, detached from the board) if an
inserted USB cable is removed by pulling up and away from the board. To reduce the risk of
damaging the connector (and the board), pull the cable straight out of the connector; also, do
not rock or wiggle the cable back and forth to loosen it from the connector.
Operating Systems
In Linux, a dual-display configuration (using both the LVDS and the Mini DisplayPort++
connectors) will fail to show output on the LVDS port unless the operating system is
configured to boot in UEFI mode. Single display configurations do not have an issue.
In Ubuntu 14.04, if an LVDS monitor goes into power saving mode or the operating system
goes into suspend or hibernate mode, the LVDS monitor will fail to come back on.
BIOS
An installed microSD card disappears from Windows Device Manager after the board enters
an S3 state. Extracting/re-inserting the microSD card does not bring it back; the board must
be rebooted for Windows to recognize the microSD card again.
In the USB Configuration menu, disabling the xHCI controller without enabling the EHCI
controller prevents the use of all USB devices, including the keyboard. Without a keyboard
to navigate BIOS Setup utility, the board may need to be returned to VersaLogic for repair.

Contents
Introduction .................................................................................................................10
Features.............................................................................................................................11
Technical Specifications...................................................................................................11
Block Diagram..................................................................................................................12
Dimensions and Mounting................................................................................................13
Osprey Dimensions..............................................................................................13
VL-HDW-405 Mounting Plate Dimensions........................................................14
Configuration and Setup.............................................................................................15
Initial Configuration .........................................................................................................15
Basic Setup .......................................................................................................................15
BIOS Setup.......................................................................................................................17
Default BIOS Setup Values.................................................................................17
Operating System Installation........................................................................................... 17
Jumper Blocks ..................................................................................................................18
Jumper As-Shipped Configuration ......................................................................18
Jumper Configuration Summary.......................................................................... 18
Board Features............................................................................................................19
CPU...................................................................................................................................19
CPU Die Temperature .........................................................................................19
System RAM.....................................................................................................................19
Flash Storage ....................................................................................................................19
I/O Interfaces ....................................................................................................................20
Real-Time Clock (RTC) ...................................................................................................20
Watchdog Timer...............................................................................................................20
External Connectors .........................................................................................................21
Baseboard Connector Locations..........................................................................21
Power Delivery.................................................................................................................22
Main Power Connector........................................................................................22
Cabling.................................................................................................................23
Power Requirements............................................................................................23
Power Delivery Considerations...........................................................................23
Power Button.......................................................................................................24
Supported Power States.......................................................................................24
Battery Power Options.........................................................................................25
External Speaker...............................................................................................................26
Push-button Reset.............................................................................................................26
LEDs.................................................................................................................................27
Power-Good/Fault Indicator LEDs......................................................................28
Mass Storage Interfaces.............................................................................................29
SATA Interface................................................................................................................. 29

VL-EPU-3311 Reference Manual vii
microSD Socket................................................................................................................30
eMMC Flash.....................................................................................................................30
Multi-purpose I/O.........................................................................................................31
USB Interface ...................................................................................................................31
Mini PCIe / mSATA Sockets............................................................................................32
W_Disable# Signal..............................................................................................34
Mini PCIe Card Wireless Status LEDs................................................................35
mSATA Activity LED.........................................................................................36
User I/O Connector...........................................................................................................37
Cabling.................................................................................................................38
Serial I/O ......................................................................................................................39
Serial Ports........................................................................................................................39
Serial Port Connector Pinout............................................................................... 40
Cabling.................................................................................................................40
COM Port Configuration.....................................................................................40
Console Redirection .........................................................................................................40
Video Interfaces...........................................................................................................41
Mini DisplayPort++ Connector ........................................................................................41
VGA Output......................................................................................................... 43
Mini DisplayPort Cable Options .........................................................................43
LVDS Interface.................................................................................................................44
LVDS Flat Panel Display Connector...................................................................44
LVDS Backlight Connector.................................................................................46
Network Interfaces......................................................................................................47
Ethernet Connector..............................................................................................47
Cabling.................................................................................................................48
Ethernet Status LEDs...........................................................................................49
VL-CBR-4005B Paddleboard.......................................................................................50
VL-CBR-4005B Connectors and Indicators........................................................50
User I/O Connector..............................................................................................51
Cabling.................................................................................................................52
On-board Battery.................................................................................................52
Auxiliary I/O Connector......................................................................................53
Dimensions and Mounting Holes ........................................................................ 54
Thermal Considerations .............................................................................................55
Selecting the Correct Thermal Solution for Your Application ........................................55
Heat Plate.............................................................................................................55
System-level Considerations ...............................................................................55
CPU Thermal Trip Points....................................................................................56
Thermal Specifications, Restrictions, and Conditions ........................................58
Overall Restrictions and Conditions:...................................................................58
Heat Plate Only Restrictions and Conditions:.....................................................58
Heat Sink Only Considerations: ..........................................................................58
Heat Sink with Fan Considerations:....................................................................58
EPU-3311 Thermal Characterization ...............................................................................59

VL-EPU-3311 Reference Manual viii
Test Results..........................................................................................................60
Installing VersaLogic Thermal Solutions.........................................................................64
Hardware Assembly............................................................................................. 64
Installing the VL-HDW-406 Passive Heat Sink.................................................. 66
Installing the VL-HDW-411 Heat Sink Fan........................................................ 67
Installing the VL-HDW-408 Heat Pipe Block.....................................................68
Tables
Table 1: Jumper Block V1 – Endpoint Termination ....................................................................................18
Table 2: Osprey Memory Characteristics.....................................................................................................19
Table 3: Links to Sections Describing Connectors.......................................................................................21
Table 4: Main Power Connector Pinout .......................................................................................................23
Table 5: Supported Power States..................................................................................................................24
Table 6: Mini PCIe / mSATA Socket Pinout ...............................................................................................33
Table 7: Mini PCIe Card Wireless Status LEDs ..........................................................................................35
Table 8: User I/O Connector Pinout and Pin Orientation.............................................................................38
Table 9: COM1/COM2 Connector Pinout....................................................................................................40
Table 10: Mini DisplayPort++ Connector Pinout.........................................................................................42
Table 11: LVDS Flat Panel Display Connector Pinout ................................................................................45
Table 12: LVDS Backlight Connector Pinout..............................................................................................46
Table 13: Ethernet Connector Pinout ...........................................................................................................48
Table 14: User I/O Connector Pinout...........................................................................................................51
Table 15: Auxiliary I/O Connector Pinout ...................................................................................................53
Table 16: CPU Thermal Trip Points.............................................................................................................56
Table 17: Temperature Monitoring Programs..............................................................................................57
Table 18: Absolute Minimum and Maximum Air Temperatures..................................................................58
Table 19: EPU-3311 Thermal Testing Setup ...............................................................................................59
Table 20: Heat Pipe Additional Configuration Details.................................................................................63

VL-EPU-3311 Reference Manual ix
Figures
Figure 1. The Osprey (VL-EPU-3311).........................................................................................................10
Figure 2. Osprey (VL-EPU-3311) Block Diagram.......................................................................................12
Figure 3. Osprey Dimensions and Mounting Holes......................................................................................13
Figure 4. Mounting Plate Dimensions..........................................................................................................14
Figure 5. Typical Development Configuration.............................................................................................16
Figure 6. Jumpers As-Shipped Configuration...............................................................................................18
Figure 7. Baseboard Connector Locations....................................................................................................21
Figure 8. Main Power Connector Pin Orientation........................................................................................22
Figure 9. Location and Pin Orientation of the Battery Connector................................................................25
Figure 10. VL-CBR-0203 Latching Battery Module....................................................................................26
Figure 11. Location of Status Indicator LEDs..............................................................................................27
Figure 12. Location of the Power-good/Fault Indicator LED.......................................................................28
Figure 13. Location of the SATA Connector ...............................................................................................29
Figure 14. Location of the microSD Socket.................................................................................................30
Figure 15. Location of the USB Ports ..........................................................................................................31
Figure 16. Mini PCIe/mSATA Sockets........................................................................................................32
Figure 17. Mini PCIe Wireless Status LEDs................................................................................................35
Figure 18. Location of the SATA/mSATA Activity LED............................................................................36
Figure 19. Location and Pin Orientation of the User I/O Connector............................................................37
Figure 20. Location and Pin Orientation of the Serial I/O Connector ..........................................................39
Figure 21. Location of the Mini DisplayPort++ Connector..........................................................................42
Figure 22. VL-CBR-2032 Mini DisplayPort to VGA Adapter.....................................................................43
Figure 23. Location of the LVDS Connectors..............................................................................................44
Figure 24. Location and Pin Orientation of the Ethernet Connector ............................................................47
Figure 25. Onboard Ethernet Status LEDs ...................................................................................................49
Figure 26. VL-CBR-4005B Connectors, Switches, and LEDs.....................................................................50
Figure 27. Location and Pin Orientation of the User I/O Connector............................................................51
Figure 28. Location and Pin Orientation of Auxiliary I/O Connector ..........................................................53
Figure 29. VL-CBR-4005B Dimensions and Mounting Holes.....................................................................54
Figure 30. EPU-3311-EAP Single Core Temperature Relative to Ambient Temperature............................60
Figure 31. EPU-3311-EBP Dual Core Temperature Relative to Ambient Temperature..............................61
Figure 32. EPU-3311-EDP Quad Core Temperature Relative to Ambient Temperature.............................62
Figure 33. EPU-3311-EDP Quad Core with Heat Pipe - Temperature Relative to Ambient........................63
Figure 34. Hardware Assembly with Heat Plate Down................................................................................64
Figure 35. Hardware Assembly with Heat Plate Up.....................................................................................65
Figure 36. Installing the Passive Heat Sink..................................................................................................66
Figure 37. Installing the Heat Sink Fan........................................................................................................67
Figure 38. Installing the Heat Pipe Block.....................................................................................................68

VL-EPU-3311 Reference Manual 10
Introduction
Figure 1. The Osprey (VL-EPU-3311)
1