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Related Manuals for BeagleBone RS232 Cape
Summary of Contents for BeagleBone RS232 Cape
- Page 1 BeagleBone RS232 Cape System Reference Manual Revision A1 August 10th, 2012...
- Page 2 For any questions, concerns, or issues submit them to support@beagleboardtoys.com BEAGLEBONE RS232 CAPE DESIGN 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 Beagleboardtoys.com/support...
- Page 3 BeagleBone RS232 Cape System Reference Manual Revision A ENTIRE RISK QUALITY PERFORMANCE OF THE DESIGN MATERIALS IS WITH YOU. SHOULD THE DESIGN MATERIALS PROVE DEFECTIVE, YOU ASSUME THE COST OF NECESSARY SERVICING, REPAIR CORRECTION. We mean it; these design materials may be totally unsuitable for any purposes.
- Page 4 BeagleBone RS232 Cape System Reference Manual Revision A BeagleBoardToys 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 BeagleBoardtoys.com to be a finished end- product fit for general consumer use.
- Page 5 System Reference Manual Revision A WARRANTY: The BeagleBone RS232 Cape 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.
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Page 6: Table Of Contents
System Reference Manual Revision A Table of Contents FIGURES ..............................7 TABLES ................................ 7 INTRODUCTION..........................9 CHANGE HISTORY .........................10 ..........................10 HANGE ISTORY BEAGLEBONE RS232 CAPE OVERVIEW ..................11 ..........................11 ESCRIPTIONS .............................12 ...........................12 ETTING TARTED ............................13 EPAIRS FEATURES AND SPECIFICATIONS ....................14 ......................15... -
Page 7: Figures
Figure 1. The BeagleBone RS232 Cape ............... 11 Figure 2. Key Components ................... 15 Figure 3. BeagleBone RS232 Cape High Level Block Diagram ......... 17 Figure 4. BeagleBone RS232 Cape UART Selection ..........18 Figure 5. UART to RS232 .................... 19 Figure 6. - Page 8 BeagleBone RS232 Cape System Reference Manual Revision A NOTES Page 8 of 22...
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Page 9: Introduction
System Reference Manual Revision A Introduction This document is the System Reference Manual for the BeagleBone RS232 Cape, an add- on board for the BeagleBone. This document is intended as a guide to assist anyone purchasing or who are considering purchasing the board to understand the overall design and usage of the BeagleBone RS232 Cape from the system level perspective. -
Page 10: Change History
BeagleBone RS232 Cape System Reference Manual Revision A Change History Change History Table 1 tracks the changes made for each revision of this document. Table 1. Change History Changes Date Initial release. 08/10/2012 Page 10 of 22... -
Page 11: Beaglebone Rs232 Cape Overview
BeagleBone RS232 Cape Overview Descriptions The BeagleBone RS232 Cape provides an RS232 interface to the BeagleBone via a standard D-Sub 9 female serial connector. This connector is located to the side so it doesn't interfere with any capes stacked above it. By default, the BeagleBone RS232 Cape uses UART2 port on the AM335x for RS232 connection;... -
Page 12: In The Box
BeagleBone RS232 Cape System Reference Manual Revision A In The Box The final packaged BeagleBone RS232 Cape Rev A1 product will contain the following items: 1 BeagleBone RS232 Cape 1 Wiki information card Getting Started Following the instructions below to start using your BeagleBone RS232 Cape: 1) Mount the BeagleBone RS232 on top of BeagleBone 2) Make sure the micro SD card using with BeagleBone has latest Angstrom image. -
Page 13: Repairs
BeagleBone RS232 Cape System Reference Manual Revision A Repairs If you feel the board is in need of repair, follow the RMA Request process found at http://www.beagleboardtoys.com/support/rma Do not send the board in for repair until an RMA authorization has been provided. -
Page 14: Features And Specifications
Revision A Features and Specifications This section covers the specifications of the BeagleBone RS232 Cape and provides a high level description of the major components and interfaces that make up the board. Table 2 provides a list of the BeagleBone RS232 Cape’s features. -
Page 15: Key Component Locations
Key Components RS232 Interface The BeagleBone RS232 Cape uses the SN65C322EPW to provide an RS232 serial interface for BeagleBone. SN65C322EPW features one line driver and one line receiver to translate data from RS232 level to UART level and vice versa. The RS232 signals are connected to TX and RX pins of D-Sub9 serial connector on the board. -
Page 16: Uart Selection
UART2. If one wishes to use a UART port, ensure the jumper for that port is installed. Power Indicator The BeagleBone RS232 Cape features an LED (D3) to indicate that power is applied to the cape. This LED is green when lit. -
Page 17: System Architecture And Design
BeagleBone RS232 Cape High Level Block Diagram RS232 The BeagleBone RS232 Cape uses a D-Sub 9 female serial connector to provide RS232 connection. The TX, RX, and GND signals of RS232 interface are connected to pin 2, 3, and 5 of D-Sub connector J1. A compatible serial cable is required to communicate via RS232 interface. -
Page 18: Uart
There are four UART ports available on the expansion header of BeagleBone; each of these ports can be used by the RS232 Cape. The TXD and RXD signals of SN65C322EPW can be connected to the corresponding signals of UART1, 2, 4, and 5 by installing jumpers for that signal. -
Page 19: Eeprom
EEPROMs are required for all Capes sold in order for them to operate correctly when plugged in the BeagleBone. The EEPROM used on this cape is the same one as is used on the BeagleBone, a CAT24C256. The CAT24C256 is a 256 kb Serial CMOS EEPROM, internally organized as 32,768 words of 8 bits each. -
Page 20: Eeprom Address
BeagleBone RS232 Cape System Reference Manual Revision A Figure 6. BeagleBone RS232 Cape EEPROM 5.5.1 EEPROM Address In order for each Cape to have a unique address, a board ID scheme is used that sets the address to be different depending on the order in which it is stacked onto the main board. -
Page 21: Mechanical Information
BeagleBone RS232 Cape System Reference Manual Revision A Mechanical Information This section provides information on the mechanical aspect of the BeagleBone RS232 Cape. Figure 7 is the dimensions of the BeagleBone RS232 Cape. Figure 7. BeagleBone RS232 Cape Dimensions Drawing... -
Page 22: Design Materials
BeagleBone RS232 Cape System Reference Manual Revision A Design Materials Design information can be found at BeagleBoardToys wiki: http://beagleboardtoys.com/wiki/index.php?title=BeagleBone_RS232 Provided there is: Schematic in PDF Schematic in OrCAD Manufacturing files o PCB Gerber o PCB Layout (Allegro) Bill of Materials...
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