BeagleBoard XM C2 Manuale utente

REF: BB_SRM_xM

BeagleBoard-xM System

Reference Manual

Revision C2

Page 1 of 163

BeagleBoard-xM Rev C2

System Reference Manual

Revision 0.0

October 11, 2012

Send all comments and errors concerning this SRM to the author at

[email protected]

For other questions you may contact Gerald at:

Gerald Coley

Texas Instruments

12500 TI Blvd. Dallas, Tx 75243

[email protected]

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BeagleBoard-xM System

Reference Manual

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Page 2 of 163

NOTE: This equipment has been tested and found to comply with the limits for a Class B

digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide

reasonable protection against harmful interference when the equipment is operated in a

commercial environment. This equipment generates, uses, and can radiate radio

frequency energy and, if not installed and used in accordance with the instruction manual,

may cause harmful interference to radio communications. Operation of this equipment in a

residential area is likely to cause harmful interference in which case the user will be

required to correct the interference at their own expense. All accessories used with this

board must meet FCC certification to maintain compliance of this equipment.

NOTE:. If this equipment does cause harmful interference to radio or television reception, which

can be determined by turning the equipment off and on, the user is encouraged to try to correct the

interference by one or more of the following measures:

—Reorient or relocate the receiving antenna.

—Increase the separation between the equipment and receiver.

—Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.

—Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by this manual for compliance could void the

user’s authority to operate the equipment.

THIS DOCUMENT

This work is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported

License. To view a copy of this license, visit http://creativecommons.org/licenses/by-

sa/3.0/ or send a letter to Creative Commons, 171 Second Street, Suite 300, San

Francisco, California, 94105, USA.

All derivative works are to be attributed to Gerald Coley of BeagleBoard.org.

For more information, see http://creativecommons.org/license/results-

one?license_code=by-sa

For any questions, concerns, or issues submit them to [email protected]

BEAGLEBOARD DESIGN

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BeagleBoard-xM System

Reference Manual

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These design materials referred to in this document are

*NOT SUPPORTED* and DO NOT constitute a

reference design. Only “community” support is allowed via

resources at BeagleBoard.org/discuss.

THERE IS NO WARRANTY FOR THE DESIGN

MATERIALS, TO THE EXTENT PERMITTED BY

APPLICABLE LAW. EXCEPT WHEN OTHERWISE

STATED IN WRITING THE COPYRIGHT HOLDERS

AND/OR OTHER PARTIES PROVIDE THE DESIGN

MATERIALS “AS IS” WITHOUT WARRANTY OF

ANY KIND, EITHER EXPRESSED OR IMPLIED,

INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

WARRANTIES OF MERCHANTABILITY AND

FITNESS FOR A PARTICULAR PURPOSE. THE

ENTIRE RISK AS TO THE QUALITY AND

PERFORMANCE OF THE DESIGN MATERIALS IS

WITH YOU. SHOULD THE DESIGN MATERIALS

PROVE DEFECTIVE, YOU ASSUME THE COST OF

ALL NECESSARY SERVICING, REPAIR OR

CORRECTION.

We mean it; these design materials may be totally

unsuitable for any purposes.

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Reference Manual

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BeagleBoard.org provides the enclosed product(s) under the following conditions:

This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR

EVALUATION PURPOSES ONLY and is not considered by BeagleBoard.org to be a finished end-product

fit for general consumer use. Persons handling the product(s) must have electronics training and observe

good engineering practice standards. As such, the goods being provided are not intended to be complete in

terms of required design-, marketing-, and/or manufacturing-related protective considerations, including

product safety and environmental measures typically found in end products that incorporate such

semiconductor components or circuit boards. This evaluation board/kit does not fall within the scope of the

European Union directives regarding electromagnetic compatibility, restricted substances (RoHS), recycling

(WEEE), FCC, CE or UL, and therefore may not meet the technical requirements of these directives or other

related directives.

Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may

be returned within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS

THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER

WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF

MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user

indemnifies BeagleBoard.org from all claims arising from the handling or use of the goods. Due to the open

construction of the product, it is the user’s responsibility to take any and all appropriate precautions with

regard to electrostatic discharge.

EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE

LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL

DAMAGES.

BeagleBoard.org currently deals with a variety of customers for products, and therefore our arrangement

with the user is not exclusive. BeagleBoard.org assumes no liability for applications assistance,

customer product design, software performance, or infringement of patents or services described

herein.

Please read the User’s Guide and, specifically, the Warnings and Restrictions notice in the User’s Guide

prior to handling the product. This notice contains important safety information about temperatures and

voltages. For additional information on BeagleBoard.org environmental and/or safety programs, please

contact visit BeagleBoard.org.

No license is granted under any patent right or other intellectual property right of BeagleBoard.org covering

or relating to any machine, process, or combination in which such BeagleBoard.org products or services

might be or are used.

Mailing Address:

BeagleBoard.org

1380 Presidential Dr. #100

Richardson, TX 75081

U.S.A.

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WARRANTY: The BeagleBoard is warranted against defects in materials and workmanship for a

period of 90 days from purchase. This warranty does not cover any problems occurring as a result

of improper use, modifications, exposure to water, excessive voltages, abuse, or accidents. All

boards will be returned via standard mail if an issue is found. If no issue is found or express return

is needed, the customer will pay all shipping costs.

Before returning the board, please visit BeagleBoard.org/support

Please refer to sections 12 and 13 of this document for the board checkout procedures and

troubleshooting guides.

To return a defective board, please request an RMA at http://beagleboard.org/support/rma

REF: BB_SRM_xM

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Table of Contents

FIGURES .....................................................................................................................................................10

TABLES .......................................................................................................................................................12

1.0 INTRODUCTION..............................................................................................................................14

2.0 CHANGE HISTORY.........................................................................................................................16

2.1 CHANGE HISTORY............................................................................................................................16

2.2 BEAGLEBOARD VS.BEAGLEBOARD-XM .........................................................................................16

2.2.1 Hardware Changes................................................................................................................16

2.2.2 Software Changes ..................................................................................................................17

2.3 –XMREVISION A2 VS.–XMREVISION A3.......................................................................................17

2.4 –XMREVISION A3 VS.–XMREVISION B.........................................................................................17

2.5 –XMREVISION BVS.–XMREVISION C ...........................................................................................18

2.6 –XMREVISION CVS.–XMREVISION C1 .........................................................................................19

2.7 DEFINITIONS ....................................................................................................................................19

3.0 BEAGLEBOARD OVERVIEW .......................................................................................................20

3.1 BEAGLEBOARD VERSIONS ...............................................................................................................20

4.0 BEAGLEBOARD SPECIFICATION ..............................................................................................21

4.1 BEAGLEBOARD FEATURES...............................................................................................................21

4.2 PROCESSOR......................................................................................................................................22

4.3 MEMORY..........................................................................................................................................22

4.4 POWER MANAGEMENT.....................................................................................................................22

4.5 HS USB 2.0 OTG PORT...................................................................................................................23

4.6 HS USB 2.0 HOST PORTS ................................................................................................................23

4.7 STEREO AUDIO OUTPUT CONNECTOR..............................................................................................24

4.8 STEREO AUDIO IN CONNECTOR .......................................................................................................24

4.9 S-VIDEO CONNECTOR ......................................................................................................................24

4.10 DVI-D CONNECTOR....................................................................................................................24

4.11 LCD HEADER..............................................................................................................................24

4.12 MICROSD CONNECTOR................................................................................................................25

4.13 RESET BUTTON ...........................................................................................................................25

4.14 USER BUTTON.............................................................................................................................25

4.15 INDICATORS ................................................................................................................................25

4.16 POWER CONNECTOR ...................................................................................................................25

4.17 JTAG CONNECTOR .....................................................................................................................26

4.18 RS232 DB9 CONNECTOR ............................................................................................................26

4.19 MAIN EXPANSION HEADER .........................................................................................................26

4.20 CAMERA CONNECTOR .................................................................................................................26

4.21 MMC3 EXPANSION HEADER.......................................................................................................27

4.22 MCBSP EXPANSION HEADER......................................................................................................27

4.23 BEAGLEBOARD MECHANICAL SPECIFICATIONS ..........................................................................27

4.24 ELECTRICAL SPECIFICATIONS .....................................................................................................28

5.0 PRODUCT CONTENTS...................................................................................................................30

5.1 BEAGLEBOARD IN THE BOX ............................................................................................................30

5.2 SOFTWARE ON THE BEAGLEBOARD .................................................................................................31

5.3 REPAIRS ...........................................................................................................................................31

6.0 BEAGLEBOARD CONNECTIONS................................................................................................32

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6.1 CONNECTING USB OTG..................................................................................................................32

6.2 CONNECTING USB HOST .................................................................................................................34

6.3 CONNECTING DC POWER.................................................................................................................35

6.4 CONNECTING JTAG.........................................................................................................................36

6.5 CONNECTING SERIAL CABLE ...........................................................................................................37

6.6 CONNECTING S-VIDEO.....................................................................................................................38

6.7 CONNECTING DVI-D CABLE............................................................................................................39

6.8 CONNECTING STEREO OUT CABLE...................................................................................................40

6.9 CONNECTING STEREO IN CABLE ......................................................................................................41

6.10 INDICATOR LOCATIONS...............................................................................................................42

6.11 BUTTON LOCATIONS ...................................................................................................................43

6.12 MICROSD CONNECTION ..............................................................................................................44

6.13 LCD CONNECTION ......................................................................................................................45

7.0 BEAGLEBOARD-XM SYSTEM ARCHITECTURE AND DESIGN ..........................................46

7.1 SYSTEM BLOCK DIAGRAM ...............................................................................................................46

7.2 OVER VOLTAGE PROTECTION ..........................................................................................................48

7.3 POWER CONDITIONING ....................................................................................................................49

7.3.1 USB DC Source .....................................................................................................................50

7.3.2 Wall Supply Source................................................................................................................51

7.3.3 DC Source Control ................................................................................................................51

7.3.4 AUX 3.3V Supply ...................................................................................................................52

7.4 METER CURRENT MEASUREMENT ...................................................................................................53

7.5 PROCESSOR CURRENT MEASUREMENT ............................................................................................53

7.6 VBAT POWER CONDITIONING.........................................................................................................55

7.7 TPS65950 RESET AND POWER MANAGEMENT ................................................................................55

7.7.1 Main Core Voltages...............................................................................................................56

7.7.2 Main DC Input.......................................................................................................................56

7.7.3 Processor I2C Control...........................................................................................................56

7.7.4 VIO_1V8 ................................................................................................................................56

7.7.5 Main Core Voltages Smart Reflex .........................................................................................58

7.7.6 VDD1.....................................................................................................................................58

7.7.7 VDD2.....................................................................................................................................58

7.8 PERIPHERAL VOLTAGES...................................................................................................................59

7.8.1 VDD_PLL2 ............................................................................................................................59

7.8.2 VDD_PLL1 ............................................................................................................................60

7.8.3 VDAC_1V8 ............................................................................................................................60

7.8.4 VDD_SIM ..............................................................................................................................61

7.8.5 VMMC2 .................................................................................................................................61

7.8.6 VDD_VMMC1 .......................................................................................................................61

7.8.7 CAM_2V8 ..............................................................................................................................61

7.8.8 CAM_1V8 ..............................................................................................................................61

7.8.9 USB_1V8 ...............................................................................................................................61

7.8.10 EXP_VDD.........................................................................................................................62

7.9 OTHER SIGNALS...............................................................................................................................62

7.9.1 Boot Configuration ................................................................................................................62

7.9.2 RTC Backup Battery ..............................................................................................................62

7.9.3 Power Sequencing .................................................................................................................63

7.9.4 Reset Signals..........................................................................................................................63

7.9.5 mSecure Signal ......................................................................................................................65

7.10 PROCESSOR .................................................................................................................................65

7.10.1 Overview ...........................................................................................................................66

7.10.2 SDRAM Bus ......................................................................................................................66

7.10.3 GPMC Bus ........................................................................................................................67

7.10.4 DSS Bus ............................................................................................................................67

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7.10.5 McBSP2 ............................................................................................................................67

7.10.6 McBSP1 ............................................................................................................................67

7.10.7 McBSP3 ............................................................................................................................68

7.10.8 Pin Muxing........................................................................................................................68

7.10.9 GPIO Mapping .................................................................................................................70

7.10.10 Interrupt Mapping.............................................................................................................70

7.11 POP MEMORY DEVICE................................................................................................................71

7.12 SYSTEM CLOCKS .........................................................................................................................71

7.12.1 32KHz Clock .....................................................................................................................72

7.12.2 26MHz Clock ....................................................................................................................72

7.12.3 McBSP_CLKS ...................................................................................................................73

7.13 USB OTG PORT..........................................................................................................................73

7.13.1 USB OTG Overview ..........................................................................................................73

7.13.2 USB OTG Design..............................................................................................................74

7.13.3 OTG ULPI Interface .........................................................................................................74

7.13.4 OTG Charge Pump ...........................................................................................................75

7.13.5 OTG USB Connector ........................................................................................................76

7.13.6 OTG USB Protection ........................................................................................................76

7.14 ONBOARD USB HUB..................................................................................................................76

7.14.1 Power................................................................................................................................77

7.14.2 HS USB PHY.....................................................................................................................78

7.14.3 USB HUB..........................................................................................................................80

7.14.4 USB Port Connectors........................................................................................................82

7.14.5 Ethernet.............................................................................................................................83

7.15 MICROSD ....................................................................................................................................84

7.15.1 microSD Power.................................................................................................................84

7.15.2 Processor Interface ...........................................................................................................84

7.15.3 Card Detect.......................................................................................................................85

7.15.4 Booting From SD/MMC Cards .........................................................................................85

7.16 AUDIO INTERFACE ......................................................................................................................86

7.16.1 Processor Audio Interface ................................................................................................86

7.16.2 TPS65950 Audio Interface ................................................................................................87

7.16.3 Audio Output Jack ............................................................................................................87

7.16.4 Audio Input Jack ...............................................................................................................87

7.17 DVI-D INTERFACE ......................................................................................................................88

7.17.1 Processor LCD Interface ..................................................................................................89

7.17.2 LCD Power .......................................................................................................................90

7.17.3 TFP410 Power..................................................................................................................90

7.17.4 TFP410 Framer ................................................................................................................90

7.17.5 TFP410 Control Pins........................................................................................................91

7.17.6 DVI-D Connector..............................................................................................................92

7.18 LCD EXPANSION HEADERS.........................................................................................................94

7.19 S-VIDEO......................................................................................................................................96

7.20 CAMERA PORT ............................................................................................................................96

7.20.1 Camera Power ..................................................................................................................97

7.20.2 Camera I2C Port ..............................................................................................................98

7.20.3 Processor Camera Port Interface .....................................................................................98

7.20.4 Camera Modules.............................................................................................................100

7.21 RS232 PORT..............................................................................................................................101

7.21.1 Processor Interface .........................................................................................................101

7.21.2 Level Translator..............................................................................................................101

7.21.3 RS232 Transceiver ..........................................................................................................102

7.21.4 Connector .......................................................................................................................102

7.22 INDICATORS ..............................................................................................................................102

7.22.1 Power Indicator ..............................................................................................................103

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7.22.2 PMU Status Indicator .....................................................................................................103

7.22.3 User Indicators ...............................................................................................................104

7.22.4 HUB Power Indicator .....................................................................................................104

7.22.5 Overvoltage Indicators ...................................................................................................104

7.23 JTAG ........................................................................................................................................104

7.23.1 Processor Interface .........................................................................................................105

7.23.2 JTAG Connector .............................................................................................................105

7.24 MAIN EXPANSION HEADER .......................................................................................................105

7.24.1 Processor Interface .........................................................................................................106

7.24.2 Expansion Signals...........................................................................................................107

7.24.3 Power..............................................................................................................................109

7.24.4 Reset................................................................................................................................109

7.24.5 Power Control.................................................................................................................109

7.25 LCD EXPANSION HEADER ........................................................................................................109

7.26 AUXILIARY EXPANSION HEADER ..............................................................................................110

7.26.1 MCBSP5 Signals.............................................................................................................111

7.26.2 MMC3 Signals ................................................................................................................111

7.26.3 ETK Signals ....................................................................................................................112

7.26.4 HSUSB1 Signals .............................................................................................................113

7.26.5 Alternate Clock ...............................................................................................................113

7.26.6 HDQ 1-Wire....................................................................................................................113

7.26.7 ADC ................................................................................................................................113

7.26.8 GPIO Signals ..................................................................................................................114

7.26.9 DMAREQ ........................................................................................................................114

7.27 AUDIO EXPANSION HEADER .....................................................................................................114

8.0 CONNECTOR PINOUTS AND CABLES ....................................................................................115

8.1 POWER CONNECTOR ......................................................................................................................115

8.2 USB OTG......................................................................................................................................116

8.3 S-VIDEO.........................................................................................................................................117

8.4 DVI-D ...........................................................................................................................................118

8.5LCD...............................................................................................................................................120

8.5.1 Connector Pinout.................................................................................................................120

8.5.2 Camera ................................................................................................................................122

8.5.3 Audio McBSP2 Port.............................................................................................................124

8.5.4 Auxiliary Access Header......................................................................................................125

8.5.5 LCD and Expansion Measurements ....................................................................................126

8.5.6 Mounting Scenarios .............................................................................................................127

8.6 AUDIO CONNECTIONS ....................................................................................................................128

8.7 AUDIO OUT....................................................................................................................................129

8.8 JTAG.............................................................................................................................................130

8.9 BATTERY INSTALLATION ...............................................................................................................132

8.9.1 Battery .................................................................................................................................132

8.9.2 Battery Installation ..............................................................................................................132

9.0 BEAGLEBOARD ACCESSORIES ...............................................................................................134

9.1 DC POWER SUPPLY........................................................................................................................135

9.2 DVI CABLES ..................................................................................................................................136

9.3 DVI-D MONITORS .........................................................................................................................136

9.4 MICROSD CARDS ...........................................................................................................................137

9.5 USB TO WIFI.................................................................................................................................137

9.6 USB TO BLUETOOTH .....................................................................................................................138

10.0 MECHANICAL INFORMATION ............................................................................................140

10.1 BEAGLEBOARD DIMENSIONS ....................................................................................................140

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BeagleBoard-xM System

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10.2 BEAGLEBOARD EXPANSION CARD DESIGN INFORMATION .......................................................141

10.2.1 Mounting Method............................................................................................................141

10.2.2 Expansion EEPROM.......................................................................................................142

11.0 BOARD VERIFICATION TEST POINTS...............................................................................144

11.1.1 Signal Access Points .......................................................................................................146

11.2 TROUBLESHOOTING GUIDE .......................................................................................................147

12.0 KNOWN ISSUES ........................................................................................................................148

13.0 PCB COMPONENT LOCATIONS...........................................................................................149

14.0 SCHEMATICS............................................................................................................................151

15.0 BILLS OF MATERIAL..............................................................................................................162

16.0 PCB INFORMATION ................................................................................................................163

Figures

Figure 1. BeagleBoard and BeagleBoard-xM .............................................................. 20

Figure 2. USB Y-Cable ................................................................................................ 23

Figure 3. The -xM Rev C Box...................................................................................... 30

Figure 4. -xM Rev C Box Contents.............................................................................. 31

Figure 5. USB OTG Connection .................................................................................. 33

Figure 6. USB Host Connection................................................................................... 34

Figure 7. DC Power Connection .................................................................................. 35

Figure 8. BeagleBoard JTAG Connection ................................................................... 36

Figure 9. BeagleBoard Serial Cable Connection.......................................................... 37

Figure 10. BeagleBoard S-Video Connection............................................................ 38

Figure 11. BeagleBoard DVI-D Connection.............................................................. 39

Figure 12. BeagleBoard Audio Out Cable Connection.............................................. 40

Figure 13. BeagleBoard Audio In Cable Connection................................................. 41

Figure 14. BeagleBoard Indicator Locations ............................................................. 42

Figure 15. BeagleBoard Button Location................................................................... 43

Figure 16. BeagleBoard microSD Card Location ...................................................... 44

Figure 17. BeagleBoard LCD Header Location......................................................... 45

Figure 18. BeagleBoard-xM High Level Block Diagram .......................................... 46

Figure 19. BeagleBoard Major Components.............................................................. 47

Figure 20. Overvoltage Protection ............................................................................. 48

Figure 21. Input Power Section.................................................................................. 50

Figure 22. AUX 3.3 Power Section............................................................................ 52

Figure 23. Processor Current Measurement............................................................... 53

Figure 24. VBAT Power Conditioning ...................................................................... 55

Figure 25. Main Power Rails...................................................................................... 57

Figure 26. Peripheral Voltages................................................................................... 60

Figure 27. Power Sequencing..................................................................................... 63

Figure 28. Reset Circuitry .......................................................................................... 64

Figure 29. DM37x Block Diagram............................................................................. 65

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