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BeagleBone RS232 Cape

System Reference Manual

Revision A1

August 10th, 2012

Содержание RS232 Cape

Страница 1: ...BeagleBone RS232 Cape System Reference Manual Revision A1 August 10th 2012...

Страница 2: ...license_code by sa 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 a...

Страница 3: ...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 mea...

Страница 4: ...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...

Страница 5: ...roblems 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 fo...

Страница 6: ...TTING STARTED 12 3 4 REPAIRS 13 4 0 FEATURES AND SPECIFICATIONS 14 4 1 KEY COMPONENT LOCATIONS 15 4 2 RS232 INTERFACE 15 4 3 UART SELECTION 16 4 4 POWER INDICATOR 16 4 5 MECHANICAL SPECIFICATIONS 16 4...

Страница 7: ...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 BeagleBone RS232 Cape EEPROM 20 Figur...

Страница 8: ...BeagleBone RS232 Cape System Reference Manual Revision A Page 8 of 22 NOTES...

Страница 9: ...ns in this document are Section 2 0 Change History Provides tracking for the changes made to the System Reference Manual Section 3 0 Overview This is a high level overview of the BeagleBone RS232 Cape...

Страница 10: ...em Reference Manual Revision A Page 10 of 22 2 0 Change History 2 1 Change History Table 1 tracks the changes made for each revision of this document Table 1 Change History Rev Changes Date By A1 Init...

Страница 11: ...e 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 t...

Страница 12: ...his connection This will also power up the BeagleBone 5 Open a terminal application Teraterm Hyperterminal etc and open new connection with following settings baud rate 115200 data 8 bit parity none s...

Страница 13: ...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 Do not return the board to the...

Страница 14: ...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 Table 2 BeagleBone RS232 Cape Features Compatible S...

Страница 15: ...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 le...

Страница 16: ...T port ensure the jumper for that port is installed 4 4 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 4 5 Mechan...

Страница 17: ...el block diagram of the BeagleBone RS232 Cape Figure 3 BeagleBone RS232 Cape High Level Block Diagram 5 2 RS232 The BeagleBone RS232 Cape uses a D Sub 9 female serial connector to provide RS232 connec...

Страница 18: ...s to use a different UART port the TX and RX jumpers for that port are required to be installed User will also need to rebuild the kernel to support that UART port in software A buffer is used to ensu...

Страница 19: ...chematic Figure 5 UART to RS232 5 5 EEPROM The BeagleBone RS232 Cape has an EEPROM containing information that will allow the SW to identify the board and to configure the expansion headers pins as ne...

Страница 20: ...Address line A2 is always tied high This sets the allowable address range for the expansion cards to 0x54 to 0x57 All other I2C addresses can be used by the user in the design of their Capes But thes...

Страница 21: ...Revision A Page 21 of 22 6 0 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 Figu...

Страница 22: ...d 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...