SMART Embedded Computing COMX-P2020 BSP Quick start guide

COMX-P2020 Module
Installation and Use
P/N: 6806800K97F
November 2019

© 2019 SMART Embedded Computing™, Inc.
All Rights Reserved.
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The stylized "S" and "SMART" is a registered trademark of SMART Modular Technologies, Inc. and “SMART Embedded
Computing” and the SMART Embedded Computing logo are trademarks of SMART Modular Technologies, Inc. All other names
and logos referred to are trade names, trademarks, or registered trademarks of their respective owners. These materials are
provided by SMART Embedded Computing as a service to its customers and may be used for informational purposes only.
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materials are provided "AS IS" without warranty of any kind, either expressed or implied, including but not limited to,
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Technical Data clause at DFARS 252.227-7013 (Nov. 1995) and of the Rights in Noncommercial Computer Software and
Documentation clause at DFARS 252.227-7014 (Jun. 1995).
SMART Embedded Computing, Inc.
2900 S. Diablo Way, Suite 190
Tempe, Arizona 85282
USA
*For full legal terms and conditions, visit www.smartembedded.com/ec/legal

Table of Contents
ProductNameLong Manual Type (680xxxxxxx) 3
About this Manual ...............................................................11
Safety Notes....................................................................15
Sicherheitshinweise .............................................................17
1 Introduction.................................................................19
1.1 Features ...............................................................19
1.2 Standard Compliances ....................................................20
1.3 Mechanical Data .........................................................21
1.3.1 COMX-P2020 Mechanical Data ......................................21
1.3.2 Heat Spreader Mechanical Data .......................................22
1.3.3 Cooler Mechanical Data..............................................24
1.4 Board Identification .......................................................26
1.5 Ordering and Support Information ...........................................27
2 Hardware Preparation and Installation ...........................................29
2.1 Environmental and Power Requirements ......................................29
2.1.1 Environmental Requirements..........................................29
2.1.2 Thermal Requirements...............................................30
2.1.3 Power Requirements ................................................30
2.2 Default Settings .........................................................31
2.3 Unpacking and Inspecting the Module ........................................31
2.4 Preparing the Installation Environment .......................................32
2.5 Installing and Removing the Memory Module ...................................33
2.6 Installing the MicroSD Card ................................................35
2.7 Installing and Removing the Heat Spreader/Cooler .............................36
2.8 Installing and Removing the Module on the Carrier Board .........................36
3 Controls, LEDs, and Connectors ...............................................37
3.1 Board Layout ...........................................................37
3.2 Connectors and Switches ..................................................39
3.2.1 COM Express Connector .............................................39
3.2.2 Default Switch Settings ..............................................44

4 ProductNameLong Manual Type (680xxxxxxx)
Table of Contents
3.2.2.1 DIP Switch Setting ........................................44
3.2.2.2 PHY Address Settings .......................................46
3.2.2.3 I2C Bus #1 Address Setting ...................................46
3.2.2.4 I2C Bus #2 Address Setting ...................................46
3.2.2.5 Other Pin Strap Settings ...................................47
3.2.3 Debug Ports .......................................................66
3.2.3.1 P1 JTAG ..................................................66
3.2.4 Switches and LEDs for Debug Use .....................................67
3.3 LEDs ..................................................................68
4 Functional Description........................................................69
4.1 Block Diagram ..........................................................69
4.2 Processor ..............................................................69
4.3 Memory................................................................71
4.3.1 SDRAM ..........................................................71
4.3.2 SD Card ..........................................................71
4.3.3 SPI Flash .........................................................71
4.3.4 EEPROM .........................................................72
4.4 Video ..................................................................72
4.5 I2C....................................................................72
4.5.1 I2CBus...........................................................72
4.5.2 I2C EEPROM ......................................................72
4.5.3 PCA9545 .........................................................72
4.5.4 DDR3 SPD ........................................................73
4.5.5 RTC and Watchdog Timer ............................................73
4.6 Reset Logic .............................................................73
4.7 LM75CIM-3 .............................................................74
4.8 Interrupt Logic ...........................................................75
4.9 JTAG ..................................................................75
4.10 GPIO ..................................................................75
4.11 UART .................................................................76
4.12 USB ..................................................................77
4.13 PCI Express ............................................................77
4.14 Ethernet (eTSEC) ........................................................78
5 Maps and Registers ..........................................................79
5.1 MemoryMap............................................................79

Table of Contents
ProductNameLong Manual Type (680xxxxxxx) 5
5.2 IRQ Distribution .........................................................80
5.3 Registers ...............................................................80
6 Firmware Upgrade ...........................................................81
6.1 Upgrade Procedure ......................................................81
6.1.1 Host Setup ........................................................81
6.1.2 Upgrade MicroSD Card ..............................................82
6.1.3 Upgrade SPI Flash..................................................84
7 Operating System and Driver Support ...........................................87
7.1 Supported Operating Systems ..............................................87
7.2 Supported Drivers ........................................................87
A Related Documentation .......................................................89
A.1 SMART Embedded Computing Documentation .................................89
A.2 References .............................................................89

6 ProductNameLong Manual Type (680xxxxxxx)
Table of Contents

List of Tables
ProductNameLong Manual Type (680xxxxxxx) 7
Table 1-1 Standard Compliances ................................................20
Table 1-2 Mechanical Data .....................................................22
Table 2-1 Environmental Requirements ...........................................29
Table 2-2 Critical Temperature Spots for COMX-P2020 Module .........................30
Table 2-3 Module Total Power Consumption ........................................30
Table 2-4 Default Settings ......................................................31
Table 3-1 COM Express Connector ..............................................39
Table 3-2 DIP Switch Setting ...................................................44
Table 3-3 s3_23 Settings ......................................................44
Table 3-4 s3_14 Settings ......................................................44
Table 3-5 s7_23 Settings ......................................................45
Table 3-6 s7_14 Settings ......................................................45
Table 3-7 PHY Address Settings ................................................46
Table 3-8 I2C Bus #1 Address setting .............................................46
Table 3-9 I2C Bus #2 Address setting .............................................46
Table 3-10 CPU Debug (P1) .....................................................66
Table 3-11 GE PHY Debug (Test Point14-19) ........................................66
Table 3-12 Debug Switches .....................................................67
Table 3-13 Debug LEDs ........................................................67
Table 3-14 LEDs ..............................................................68
Table 4-1 GPIO Description ....................................................75
Table 4-2 Initialization Parameters ...............................................77
Table 5-1 Memory Map ........................................................79
Table 5-2 IRQ Distribution ......................................................80
Table 7-1 Driver Controller Table .................................................87
Table A-1 SMART EC Documentation ............................................89
Table A-2 References .........................................................89

List of Tables
8 ProductNameLong Manual Type (680xxxxxxx)

List of Figures
ProductNameLong Manual Type (680xxxxxxx) 9
Figure 1-1 COMX-P2020 Mechanical Dimensions (Top and Side View) ................. 21
Figure 1-2 Heat Spreader Mechanical Dimensions (Front and Side View) ............... 22
Figure 1-3 Heat Spreader (Rear View) .......................................... 23
Figure 1-4 Cooler Mechanical Dimensions (Front and Side View) ..................... 24
Figure 1-5 Cooler (Rear View) ................................................. 25
Figure 1-6 Serial Number Location ............................................. 26
Figure 2-1 MicroSD Card Slot ................................................. 35
Figure 3-1 COMX-P2020 Module Components ................................... 37
Figure 3-2 COMX-P2020 Module Components (Rear View) .......................... 38
Figure 3-3 Location of LEDs .................................................. 68
Figure 4-1 Block Diagram .................................................... 69
Figure 4-2 P2020 Processor Block Diagram ...................................... 70
Figure 4-3 SPI Area for U-boot ................................................ 71
Figure 4-4 Reset Logic ...................................................... 74
Figure 4-5 Interrupt Logic .................................................... 75

List of Figures
10 ProductNameLong Manual Type (680xxxxxxx)

COMX-P2020 Module Installation and Use (6806800K97F) 11
About this Manual
Overview of Contents
This manual is divided into the following chapters and appendices.
Safety Notes on page 15 summarizes the safety instructions in the manual.
Sicherheitshinweise on page 17 is a German translation of the Safety Notes chapter.
Chapter 1, Introduction on page 19 gives an overview of the features of the product,
standard compliances, mechanical data, ordering information, and board identification.
Chapter 2, Hardware Preparation and Installation on page 29 outlines the installation
requirements, hardware accessories, switch settings, and installation procedures.
Chapter 3, Controls, LEDs, and Connectors on page 37 describes external interfaces of the
board. This includes connectors and LEDs.
Chapter 4, Functional Description on page 69 includes a block diagram and functional
description of major components of the product.
Chapter 6, Firmware Upgrade on page 81 describes the procedures in upgrading the
firmware.
Chapter 7, Operating System and Driver Support on page 87 lists the drivers and operating
systems supported by the product.
Appendix A, Related Documentation on page 89 provides a listing of related product
documentation, manufacturer’s documents, and industry standard specifications.
Abbreviations
This document uses the following abbreviations:
Abbreviation Definition
COM Express Computer-on-Module Express
COP Common On-chip Processor
CRC Cyclic Redundancy Check
DDR Double Data Rate
DMA Direct Memory Access
DRAM Dynamic Random Access Memory
DUART Dual Universal Asynchronous Receiver/Transmitter
ECC Error Correction Code

12 COMX-P2020 Module Installation and Use (6806800K97F)
About this Manua
l
About this Manual
Conventions
The following table describes the conventions used throughout this manual..
EEPROM Electrically Erasable Programmable Read- Only Memory
FCC Federal Communications Commission
I2C Inter IC
JTAG Joint Test Access Group
PCI-X Peripheral Component Interconnect -X
PIC Programmable Interrupt Controller
PLL Phase-Locked Loop
RGMII Reduced Gigabit Media Independent Interface
RTC Real-Time Clock
RTM Rear Transition Module
SATA Serial AT Attachment
SDRAM Synchronous Dynamic Random Access Memory
SMT Surface Mount Technology
SO-UDIMM Small-Outline and Unbuffered Dual In-line Memory Module
Abbreviation Definition
Notation Description
0x00000000 Typical notation for hexadecimal numbers (digits are 0 through F), for
example used for addresses and offsets
0b0000 Same for binary numbers (digits are 0 and 1)
bold Used to emphasize a word
Screen Used for on-screen output and code related elements or commands.
Sample of Programming used in a table (9pt)
Courier + Bold Used to characterize user input and to separate it from system output
Reference Used for references and for table and figure descriptions
File > Exit Notation for selecting a submenu
<text> Notation for variables and keys
[text] Notation for software buttons to click on the screen and parameter
description

About this Manual
COMX-P2020 Module Installation and Use (6806800K97F) 13
... Repeated item for example node 1, node 2, ..., node 12
.
.
.
Omission of information from example/command that is not necessary at
the time
.. Ranges, for example: 0..4 means one of the integers 0,1,2,3, and 4 (used
in registers)
| Logical OR
Indicates a hazardous situation which, if not avoided, could result in death
or serious injury
Indicates a hazardous situation which, if not avoided, may result in minor
or moderate injury
Indicates a property damage message
Indicates a hot surface that could result in moderate or serious injury
Indicates an electrical situation that could result in moderate injury or death
Indicates that when working in an ESD environment care should be taken
to use proper ESD practices
No danger encountered, pay attention to important information
Notation Description

14 COMX-P2020 Module Installation and Use (6806800K97F)
About this Manua
l
About this Manual
Summary of Changes
The table below lists all the revisions implemented in this manual.
Part Number Publication Date Description
6806800K97F November 2019
Rebrand to SMART Embedded Computing template.
Removed Declaration of Conformity. Updated Freescale
to NXP; updated ordering info and related
documentation.
6806800K97E February 2015
Updated Connectors and Switches section, Table 3-1,
Registers section.
Added PinStapping Signal description.
Added Table A-2 References in Related documentation.
6806800K97D July 2014 Re-branded to Artesyn.
6806800K97C December 2010 Updated Chapter 6, Firmware Upgrade Updated
Supported Operating Systems
6806800K97B December 2010 Updated DIP Switch Setting
6806800K97A November 2010 GA version

COMX-P2020 Module Installation and Use (6806800K97F) 15
Safety Notes
This section provides warnings that precede potentially dangerous procedures throughout
this manual. Instructions contained in the warnings must be followed during all phases of
operation, service, and repair of this equipment. You should also employ all other safety
precautions necessary for the operation of the equipment in your operating environment.
Failure to comply with these precautions or with specific warnings elsewhere in this manual
could result in personal injury or damage to the equipment.
SMART Embedded Computing intends to provide all necessary information to install and
handle the product in this manual. Because of the complexity of this product and its various
uses, we do not guarantee that the given information is complete. If you need additional
information, ask your SMART EC representative.
The product has been designed to meet the standard industrial safety requirements. It must
only be used in its specific area of office telecommunication industry, industrial control, and
development. It must not be used in safety critical components, life supporting devices or
on aircraft.
Only personnel trained by SMART EC or persons qualified in electronics or electrical
engineering are authorized to install, remove or maintain the product. The information given
in this manual is meant to complete the knowledge of a specialist and must not be used as
replacement for qualified personnel.
Keep away from live circuits inside the equipment. Operating personnel must not remove
equipment covers. Only factory authorized service personnel or other qualified service
personnel is allowed to remove equipment covers for internal subassembly or component
replacement or any internal adjustment.
This product operates with dangerous voltages that can cause injury or death. Use extreme
caution when handling, testing, and adjusting this equipment and its components.
Operation
Product Damage
High humidity and condensation on surfaces cause short circuits.
Do not operate the product outside the specified environmental limits. Make sure the
product is completely dry and there is no moisture on any surface before applying power.
Installation
Damage of Circuits
Electrostatic discharge and incorrect installation and removal of the product can damage
circuits or shorten their life.

16 COMX-P2020 Module Installation and Use (6806800K97F)
Safety Notes
Safety Notes
Before touching the product make sure that your are working in an ESD-safe environment
or wear an ESD wrist strap or ESD shoes. Hold the product by its edges and do not touch
any components or circuits.
Damage of the Product and Additional Devices and Modules
Incorrect installation or removal of additional devices or modules damages the product or
the additional devices or modules.
Before installing or removing additional devices or modules, read the respective
documentation and use appropriate tools.
Pin Damage
Forcing the module into the system may damage the connector pins.
If the module hangs during insertion, pull it out and insert it again.
Environment
Environmental Damage
Improperly disposing of used products may harm the environment.
Always dispose of used products according to your country’s legislation and
manufacturer’s instructions.

COMX-P2020 Module Installation and Use (6806800K97F) 17
Sicherheitshinweise
Dieses Kapitel enthält Hinweise, die potentiell gefährlichen Prozeduren innerhalb dieses
Handbuchs vorrangestellt sind. Beachten Sie unbedingt in allen Phasen des Betriebs, der
Wartung und der Reparatur des Systems die Anweisungen, die diesen Hinweisen
enthalten sind. Sie sollten außerdem alle anderen Vorsichtsmaßnahmen treffen, die für den
Betrieb des Systems innerhalb Ihrer Betriebsumgebung notwendig sind. Wenn Sie diese
Vorsichtsmaßnahmen oder Sicherheitshinweise, die an anderer Stelle diese Handbuchs
enthalten sind, nicht beachten, kann das Verletzungen oder Schäden am System zur Folge
haben.
SMART Embedded Computing ist darauf bedacht, alle notwendigen Informationen zum
Einbau und zum Umgang mit dem System in diesem Handbuch bereit zu stellen. Da es sich
jedoch bei dem System um ein komplexes Produkt mit vielfältigen Einsatzmöglichkeiten
handelt, können wir die Vollständigkeit der im Handbuch enthaltenen Informationen nicht
garantieren. Falls Sie weitere Informationen benötigen sollten, wenden Sie sich bitte an die
für Sie zuständige Geschäftsstelle von SMART EC.
Das Produkt erfüllt die für die Industrie geforderten Sicherheitsvorschriften und darf
ausschließlich für Anwendungen in der Telekommunikationsindustrie, im Zusammenhang
mit Industriesteuerungen und in der Entwicklung verwendet werden. Es darf nicht in
sicherheitskritischen Anwendungen, lebenserhaltenden Geräten oder in Flugzeugen
verwendet werden.
Einbau, Wartung und Betrieb dürfen nur von durch SMART EC ausgebildetem oder im
Bereich Elektronik oder Elektrotechnik qualifiziertem Personal durchgeführt werden. Die in
diesem Handbuch enthaltenen Informationen dienen ausschließlich dazu, das Wissen von
Fachpersonal zu ergänzen, können dieses jedoch nicht ersetzen.
Halten Sie sich von stromführenden Leitungen innerhalb des Systems fern. Entfernen Sie
auf keinen Fall die Systemabdeckung. Nur werksseitig zugelassenes Wartungspersonal
oder anderweitig qualifiziertes Wartungspersonal darf die Systemabdeckung entfernen, um
Systemkomponenten zu ersetzen oder andere Anpassungen vorzunehmen.
Installieren Sie keine Ersatzteile oder führen Sie keine unerlaubten Veränderungen am
System durch, sonst verfällt die Garantie. Wenden Sie sich für Wartung oder Reparatur
bitte an die für Sie zuständige Geschäftsstelle von SMART EC. So stellen Sie sicher, dass
alle sicherheitsrelevanten Aspekte beachtet werden.
SMART EC und unsere Zulieferer unternehmen größte Anstrengungen um sicherzustellen,
dass sich Pins und Stecker von Boards vor dem Verlassen der Produktionsstätte in
einwandfreiem Zustand befinden. Verbogene Pins, verursacht durch fehlerhafte
Installation oder durch Installation von Boards mit beschädigten Steckern kann die durch
SMART Embedded Computing gewährte Garantie für Boards und Backplanes erlöschen
lassen.

18 COMX-P2020 Module Installation and Use (6806800K97F)
Sicherheitshinweise
Sicherheitshinweise
Dieses Produkt wird mit gefährlichen Spannungen betrieben, die zu Verletzungen und Tod
führen können. Seien Sie im Umgang mit dem Produkt und beim Testen und Anpassen des
Produktes und seiner Komponenten äußerst vorsichtig.
Betrieb
Beschädigung des Systems
Hohe Luftfeuchtigkeit und Kondensat auf den Oberflächen der Produkte kann zu
Kurzschlüssen führen.
Betreiben Sie die Produkte nur innerhalb der angegebenen Grenzwerte für die relative
Luftfeuchtigkeit und Temperatur und stellen Sie vor dem Einschalten des Stroms sicher,
dass sich auf den Produkten kein Kondensat befindet.
System Installation
Beschädigung von Schaltkreisen
Elektrostatische Entladung und unsachgemäßer Ein- und Ausbau des Produktes kann
Schaltkreise beschädigen oder ihre Lebensdauer verkürzen.
Bevor Sie das Produkt oder elektronische Komponenten berühren, vergewissern Sie sich,
daß Sie in einem ESD-geschützten Bereich arbeiten.
Beschädigung des Produktes und der Zusatzmodule
Fehlerhafter Ein- oder Ausbau von Zusatzmodulen führt zu Beschädigung des Produktes
oder der Zusatzmodule.
Lesen Sie deshalb vor dem Ein- oder Ausbau von Zusatzmodulen die Dokumentation und
benutzen Sie angemessenes Werkzeug.
Umweltschutz
Umweltverschmutzung
Falsche Entsorgung der Produkte schadet der Umwelt.
Entsorgen Sie alte Produkte gemäß der in Ihrem Land gültigen Gesetzgebung und den
Empfehlungen des Herstellers.

COMX-P2020 Module Installation and Use (6806800K97F) 19
Chapter 1
Introduction
1.1 Features
The COMX-P2020 COM Express module is based on the NXP® QorIQ® P2020 dual core
processor. The COMX-P2020 Module exhibits all the best open standard attributes:
allowing easy technology upgrades with future devices; competitive pricing with choice of
modules; and speedy time to market.
The COMX-P2020 Module is suitable for a range of applications including programmable
automation controllers, security gateways, civil aeronautics, renewable energy controllers,
test and measurement and other embedded devices. The COMX-P2020 Module is
supported by a range of real time operating systems and development tools.
The QorIQ P2020 processor is effectively a System-on-Chip device with a range of
features.
The main features of COMX-P2020 Module are as follows:
NXP® QorIQ® P2020 processor, two cores running at 1.2 GHz.
Supports up to 2GB DDR3 ECC SO-UDIMM
On-board storage:
– Micro SD card slot
– 2kbit I2C EEPROM
– 4MB SPI Flash
SDHC signals routed to the COM Express connector
Storage for bootloader and OS
Two full-function UARTs
On-board XGI Z11M Graphics Processor Unit (GPU)
95mm x 95mm compact foorprint
Supports VGA, LVDS interface
Ethernet: Three 10/100/1000Base-T Ethernet interface routed to COM Express
connectors
USB: Four USB2.0 ports routed to the COM Express connector
PCI Express: One PCI-E 1.0 and one x2 PCI-E 1.0 (@2.5GT/s) ports routed to the
COM Express connectors.
Boot loader: U-boot
I2C: Four ports
On-board I/O: JTAG

20 COMX-P2020 Module Installation and Use (6806800K97F)
Introduction
Introduction
Firmware and operating system: OS support
– BSPs to be available from:
– Mentor Graphics Linux
– Wind River VxWorks
– LynuxWorks LynuxOS
1.2 Standard Compliances
This product meets the following standards:
Table 1-1 Standard Compliances
Standard Description
UL/CSA 60950-1
EN 60950-1
IEC 60950-1 CB Scheme
Legal safety requirements
FCC 47 CFR Part 15 Subpart B (US),
Class A
EN55022 Class A (EU)
AS/NZS CISPR 22 Class A
(Australia/New Zealand)
VCCI Class A (Japan)
EMC requirements (legal) on system level (predefined
SMART EC system)