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REF: BBONEGRN_SRM                   

BeagleBone Green   

                  System  Reference  Manual                             

Rev  v1     

 

 

16 

5.2

 

Processor 

Sitara AM3358BZCZ100   

5.3

 

Memory   

Described in the following sections are the three memory devices found on the board. 

 

5.3.1

 

512MB DDR3L   

A single 256Mb x16 DDR3L 4Gb (512MB) memory device is used. The memory used is is 
one of two devices: 

 

- MT41K256M16HA-125 from Micron   
- D2516EC4BXGGB from Kingston 

 

It will operate at a clock frequency of 400MHz yielding an effective rate of 800MHZ on the 
DDR3L bus allowing for 1.6GB/S of DDR3L memory bandwidth. 

 

5.3.2

 

4KB EEPROM   

A  single  4KB  EEPROM  is  provided  on  I2C0  that  holds  the  board  information.  This 
information includes board name, serial number, and revision information. This is the not 
the same as the one used on the original BeagleBone. The device was changed for cost 
reduction reasons. It has a test point to allow the device to be programmed and otherwise 
to provide write protection when not grounded. 

 

5.3.3

 

4GB Embedded MMC   

A single 4GB embedded MMC (eMMC) device is on the board. The device connects to the 
MMC1  port  of the processor,  allowing for  8bit wide  access.  Default  boot mode for  the 
board will be MMC1 with an option to change it to MMC0, the SD card slot, for booting 
from the SD card as a result of removing and reapplying the power to the board. Simply 
pressing the reset button will not change the boot mode. MMC0 cannot be used in 8Bit 
mode because the lower data pins are located on the pins used by the Ethernet port. This 
does not  interfere  with SD  card  operation but  it  does  make  it  unsuitable  for  use  as  an 
eMMC port if the 8 bit feature is needed.   

5.3.4

 

MicroSD Connector   

The  board  is  equipped  with  a  single  micro  SD  connector  to  act  as  the  secondary  boot 
source  for  the  board  and,  if  selected  as  such,  can  be  the  primary  boot  source.  The 
connector will support larger capacity micro SD cards. The micro SD card is not provided 

Содержание BeagleBone Green

Страница 1: ...REF BBONEGRN_SRM BeagleBone Green System Reference Manual Rev v1 1 BeagleBone Green System Reference Manual Revision v1 July 22 2015 Reference to the BBB_SRM THIS DOCUMENT ...

Страница 2: ...ore information see http creativecommons org license results one license_code by sa This document is derived from work by Gerald Coley gerald beagleboard org for hardware questions please send your email to XiangNan Qu xiangnan qu seeed cc for software and ecosystem questions please direct to Jason Kridner jkridner beagleboard org and http beagleboard org discuss Send all comments and errors conce...

Страница 3: ...ING 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 This board was designed as an evaluation and development tool It was not designed with any other app...

Страница 4: ...ne Green Overview 11 4 1 BeagleBone Black Compatibility 11 4 2 BeagleBone Green Features and Specification 12 4 3 Board Component Locations 13 4 3 1 Connectors LEDs and Switches 13 4 3 2 Key Components 14 5 0 BeagleBone Green High Level Specification 15 5 1 Block Diagram 15 5 2 Processor 16 5 3 Memory 16 5 3 1 512MB DDR3L 16 5 3 2 4KB EEPROM 16 5 3 3 4GB Embedded MMC 16 5 3 4 MicroSD Connector 16 ...

Страница 5: ...ctures 24 8 0 Support Information 26 8 1 Hardware Design 26 8 2 Software Updates 26 Tables Table 1 Change History 6 Table 2 BeagleBone Green Features 12 Figures Figure 1 In The Box 7 Figure 2 Tethered Configuration 8 Figure 3 USB Connection to the Board 9 Figure 4 Board Power LED 10 Figure 5 Board Boot Status 10 Figure 6 Connectors LEDs and Switches 13 Figure 7 Key Components14 Figure 8 BeagleBone...

Страница 6: ...t notice as we will work to keep improving the design as the product matures based on feedback and experience Software updates will be frequent and will be independent of the hardware revisions and as such not result in a change in the revision number Make sure you check the support Wiki frequently for the most up to date information http www seeedstudio com wiki beaglebone_green 2 0 Change Histor...

Страница 7: ...2 As a standalone development platform in a desktop PC configuration 3 1 What s In the Box In the box you will find three main items as shown in Figure 1 BeagleBone Green Micro USB to USB Type A Cable Instruction card with link to the support WIKI address This is sufficient for the tethered scenario and creates an out of box experience where the board can be used immediately with no other equipmen...

Страница 8: ...will be able to read this section and get a good idea as to what the initial set up will be like The board can be configured in several different ways but we will discuss the most common scenarios as described in the Quick Start Guide card that comes in the box 3 3 Tethered To A PC In this configuration the board is powered by the PC via the provided USB cable no other cables are required The boar...

Страница 9: ...an be used to power the board through VDD_5V pin in P9 connector but this should rarely be necessary 3 3 1 Connect the Cable to the Board 1 Connect the small connector on the USB cable to the board as shown in Figure 4 The connector is on the bottom side of the board Figure 3 USB Connection to the Board 2 Connect the large connector of the USB cable to your PC or laptop USB port 3 The board will p...

Страница 10: ...arts to the booting process started by the process of applying power the LEDs will come on in sequence as shown in Figure 5 below It will take a few seconds for the status LEDs to come on so be patient The LEDs will be flashing in an erratic manner as it begins to boot the Linux kernel Figure 5 Board Boot Status ...

Страница 11: ...It has removed the HDMI port on the BBB and also updated the 5V barrel to Micro USB host The main improvement about BeagleBone Green is that adding two Grove connector for supporting Grove system For more information about Grove system please visit http www seeedstudio com wiki Grove_System 4 1 BeagleBone Black Compatibility The board is intended to be compatible with the BeagleBone Black as much ...

Страница 12: ...ient Port Access to USB0 Client mode via Micro USB HS USB 2 0 Host Port Access to USB1 Type A Socket 500mA LS FS HS Serial Port UART0 access via 6 pin 3 3V TTL Header Header is populated Ethernet 10 100 RJ45 SD MMC Connector microSD 3 3V Grove Connectors 1 Uart2 1 I2C2 User Input Reset Button Boot Button Power Button Video Out Not support Audio Out Not support Expansion Connectors Power 5V 3 3V VD...

Страница 13: ...ure 6 Connectors LEDs and Switches Power Button alerts the processor to initiate the power down sequence and is used to power down the board 10 100 Ethernet is the connection to the LAN Serial Debug is the serial debug port USB Client is a Micro USB connection to a PC that can also power the board BOOT switch can be used to force a boot from the micro SD card if the power is cycled on the board re...

Страница 14: ...e 7 below shows the locations of the key components on the PCB layout of the board Figure 7 Key Components Sitara AM3358BZCZ100 is the processor for the board Micron 512MB DDR3L or Kingston 512mB DDR3 is the Dual Data Rate RAM memory TPS65217C PMIC provides the power rails to the various components on the board SMSC Ethernet PHY is the physical interface to the network Micron eMMC is an onboard MM...

Страница 15: ...Rev v1 15 5 0 BeagleBone Green High Level Specification This section provides the high level specification of the BeagleBone Green 5 1 Block Diagram Figure 8 below is the high level block diagram of the BeagleBone Green Figure 8 BeagleBone Green Block diagram ...

Страница 16: ... allow the device to be programmed and otherwise to provide write protection when not grounded 5 3 3 4GB Embedded MMC A single 4GB embedded MMC eMMC device is on the board The device connects to the MMC1 port of the processor allowing for 8bit wide access Default boot mode for the board will be MMC1 with an option to change it to MMC0 the SD card slot for booting from the SD card as a result of re...

Страница 17: ...h down during a removal and reapplication of power without a microSD card inserted will force the boot source to be the USB port and if nothing is detected on the USB client port it will go to the serial port for download Without holding the switch the board will boot try to boot from the eMMC If it is empty then it will try booting from the microSD slot followed by the serial port and then the US...

Страница 18: ...e handshake signals are supported 5 7 USB1 Host Port On the board is a single USB Type A female connector with full LS FS HS Host support that connects to USB1 on the processor The port can provide power on off control and up to 500mA of current at 5V Under USB power the board will not be able to supply the full 500mA but should be sufficient to supply enough current for a lower power USB device s...

Страница 19: ...was decided to add this feature to the board to ensure everyone had access to some new features These features include Interrupt is sent to the processor to facilitate an orderly shutdown to save files and to un mount drives Provides ability to let processor put board into a sleep mode to save power Can alert processor to wake up from sleep mode and restore state before sleep was entered If you ho...

Страница 20: ...to the processor s I2C2 interface and also connect with the P9 expansion header s I2C2 pins The Grove I2C connector is for the connection of Grove sensors with I2C interface Uart The J5 connector is UART interface It accesses to the processor s UART2 interface and also connect with the P9 expansion header s UART2 pins The Grove UART connector is for the connection of Grove sensors with UART interf...

Страница 21: ...expansion header pins It is possible to provide 5V to the main board from an expansion board By supplying a 5V signal into the VDD_5V rail the main board can be supplied This voltage must not exceed 5V You should not supply any voltage into any other pin of the expansion connectors Based on the board design this rail is limited to 1A per pin to the BeagleBone Green There are several precautions th...

Страница 22: ...eagleBone Green System Reference Manual Rev v1 22 6 0 BeagleBone Green Mechanical 6 1 Dimensions and Weight Size 3 5 x 2 15 86 36mm x 53 34mm Max height 187 4 76mm PCB Layers 6 062 PCB thickness Yes RoHS Compliant 1 4 oz ...

Страница 23: ...REF BBONEGRN_SRM BeagleBone Green System Reference Manual Rev v1 23 6 2 Board Dimensions Figure 9 Board Dimensions ...

Страница 24: ...REF BBONEGRN_SRM BeagleBone Green System Reference Manual Rev v1 24 7 0 Pictures Figure 10 Top Side ...

Страница 25: ...REF BBONEGRN_SRM BeagleBone Green System Reference Manual Rev v1 25 Figure 11 Bottom Side ...

Страница 26: ...here is Schematic in PDF Schematic in OrCAD Cadence Design Entry CIS 16 3 PCB Gerber PCB Layout File Allegro Bill of Material System Reference Manual This document This directory is not always kept up to date in every SW release due to the frequency of changes of the SW The best solution is to download the files from the Circuitco WIKI at http www seeedstudio com wiki beaglebone_green 8 2 Software...

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