Digi 50M1312 802.11b transceiver to serial converter User Manual Digi Connect SP and Wi SP Hardware Reference

Digi International Inc 802.11b transceiver to serial converter Digi Connect SP and Wi SP Hardware Reference

User Manual

Digi Connect SP &Digi Connect Wi-SPHardware ReferenceTMTM90000540_C
 Digi International Inc. 2003, 2004, 2005. All Rights Reserved.The Digi logo is a registered trademark of Digi International, Inc. Digi Connect SP and Digi Connect Wi-SP are trademarks of Digi International, Inc.NetSilicon, NET+Works, NET+OS, and NET+ are trademarks of NetSilicon, Inc. All other trademarks mentioned in this document are the property of their respective owners. Information in this document is subject to change without notice and does not represent a commitment on the part of Digi International. Digi provides this document “as is,” without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of fitness or merchantability for a particular purpose. Digi may make improvements and/or changes in this manual or in the product(s) and/or the program(s) described in this manual at any time. This product could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes may be incorporated in new editions of the publication.
 5ContentsAbout This Guide .....................................................................................................................7Purpose .............................................................................................................................7Related Documentation....................................................................................................7Chapter 1: Introducing the Digi Connect SP & Digi Connect Wi-SP Hardware ............9Hardware Overview .........................................................................................................9LEDs...............................................................................................................................11Reset Button ...................................................................................................................12Antenna ..........................................................................................................................13MEI 232/422/485 Switch Settings .................................................................................13DB-9 Connector .............................................................................................................14JTAG Interface...............................................................................................................15Power Jack......................................................................................................................16Chapter 2: Programming Considerations..........................................................................19GPIO...............................................................................................................................19GPIO Pin Use.................................................................................................................21LEDs...............................................................................................................................21Flash ...............................................................................................................................22Memory ..........................................................................................................................22Reset Button ...................................................................................................................23Appendix A: Specifications.................................................................................................. 25Network Interfaces .........................................................................................................25Serial Interface ...............................................................................................................26Data Rates (bps) .............................................................................................................26Flow Control Options.....................................................................................................26
Contents6 Environmental................................................................................................................ 26Power Requirements ...................................................................................................... 27Mechanical..................................................................................................................... 27Antenna Information...................................................................................................... 28RF Exposure Statement.................................................................................................. 32Overlay Specifications................................................................................................... 33Appendix B: Certifications ................................................................................................. 35FCC Part 15 Class A ...................................................................................................... 35Industry Canada ............................................................................................................. 36International EMC Standards......................................................................................... 37Appendix C: Change Log.................................................................................................... 39Revision C......................................................................................................................39
 7About This GuidePurposeThe purpose of this guide is to assist developers creating custom embedded software for the Digi Connect SP and Digi Connect Wi-SP platform using the NET+OS operating system and tools.Related DocumentationSee the NS7520 Hardware Reference for information on the NS7520 chip.See the NET+Works BSP Porting Guide for additional programming information.
Related Documentation8 
 9Introducing the Digi Connect SP & Digi Connect Wi-SP HardwareCHAPTER 5Hardware OverviewThe following figure identifies various Digi Connect SP and Digi Connect Wi-SP connectors, LEDs and switches.
Hardware Overview10 Digi Connect SP Hardware ReferenceDigi Connect SP Hardware OverviewNote MEI switches and the Reset button are in the same location for both the Digi Connect SP and Digi Connect Wi-SP.LEDsEthernetconnectorPowerDB-9MEIswitchResetbutton
 11Digi Connect Wi-SP OverviewLEDsThe Digi Connect SP and Digi Connect Wi-SP provide three LEDs. Two of the LEDs are connected directly to the hardware; the other is software programmable. See the following table for more information.LED DescriptionsLED Color PurposePower Red (labeled PWR) This LED is software programmable. The default is that this LED indicates power (and is therefore always on). See “LEDs” on page 21 for more information
Reset Button12 Digi Connect SP Hardware ReferenceReset ButtonThe behavior of the reset button is user-defined. See “Reset Button” on page 23 and the NS520 BSP Porting Guide for LED programming information.Link GreenNetwork link status:– On - unit is associated with an access point– Blinking slowly - unit is in ad hoc mode– Blinking quickly - unit is scanning for a networkACT YellowThis LED is wired to the Ethernet hardware.– On indicates bad initialization–Off indicates ready– Blinking indicates network activityLED DescriptionsLED Color Purpose
 13AntennaThe Digi Connect Wi-SP is available with 1 RP-SMA connector. The antenna is connected to the product with a reverse polarity SMA connector (sub-miniature size A). The antenna only fits on the product one way to ensure a proper connection. Another option for both signal reception and design flexibility is to use a 30cm antenna extension cord (Digi part number DC-ANT-E-24DP) with .5dB loss to separate the antenna from the product..MEI 232/422/485 Switch SettingsThese switches set the MEI (multiple electrical interface) line protocol on the serial interface. Antenna DescriptionType Desktop Dipole 30 cmAntenna Extension CordPart number DC-ANT-24DT DC-ANT-24DP DC-ANT-E-24DPGain 1.8 dBi 2 dBi -.5dBCaution: This Part 15 radio device operates on a non-interference basis with other devices operating at this frequency when using the antennaelisted in the Antenna Specification table. Any changes or modification touser’s authority to operate the device.the product not expressly approved by Digi International could void theFunction Switch Setting1 2 3 4EIA-232 Up Down Down DownEIA-422/485 full-duplex Down Up Down – If up, termination. – If down, no terminationEIA-485 half-duplex Down Down Up
DB-9 Connector14 Digi Connect SP Hardware ReferenceDB-9 ConnectorThe figure and table provide information on DB-9 pin orientation and pin assignments.DB-9 Pin Orientation*If switch 4 is up, termination.If down, no termination.Up/OnDown/OffEIA-232 EIA-422/485Full-DuplexEIA-485Half-Duplex**00000006Pin 1 Pin 5Pin 6 Pin 9
 15JTAG InterfaceThe Digi Connect SP Development Kit is provided with the case opened, providing access to the JTAG interface which mates with a JTAG debugger plug (for example, the Macraigor Raven included in the kit). See the following table for pin assignments on the JTAG adapter block provided.DB-9 Pin AssignmentsPin EIA-232 EIA-422/485Full-Duplex EIA-485Half-Duplex1 DCD CTS- Not used2 RXD RXD+ RXD+3 TXD TXD+ TXD+4DTR RTS- Not used5 GND GND GND6 DSR RXD- RXD-7RTS RTS+ Not used8CTS CTS+ Not used9NA TXD- TXD-JTAG Debugger Connector Pin AssignmentsPin 1Pin 2Pin 3Pin 4Pin 5Pin 6Pin 7Pin 8Pin 9Pin 10 Pin 11 Pin 12 Pin13 Pin14VCC+ GND /TRST GND TDI GND TMS GND TCK GND TDO /SRST VCC+ GND
Power Jack16 Digi Connect SP Hardware ReferenceDigi Connect SP JTAG Debugger ConnectorPower JackThe Power Jack is a barrel connector that accepts 9 to 30 VDC +/- 5%. The jack is labeled as P11 on the development board. The following table shows the polarity of the power jack.The following figure schematically represents the polarity of the power jack.Power Jack PolarityContact PolarityCenter +9 to +30 VDCOuter Ground
 17Power Jack Polarity, Schematic
Power Jack18 Digi Connect SP Hardware Reference
 19Programming ConsiderationsCHAPTER 6This chapter discusses programming consideration for the Digi Connect SP and Digi Connect Wi-SP and the NS7520 processor it is based on.GPIOGeneral InformationThe NS7520 processor supports 16 general purpose I/O (GPIO) pins, some of which are reserved for specific functions and some of which can be customized. These pins fall into three categories: Those labeled “Reserved” in the following table are dedicated to a specific use and must not be reprogrammed, or the unit may not operate correctly. Often, these pins are not connected to external interfaces. Those labeled “Allocated” in the following table are exposed to an external interface and allocated to a specific use by the software but can be customized safely with code modifications.Those labeled “Available” are exposed to an external interface, not controlled directly by the software, and can be customized.
GPIO20 Digi Connect SP Hardware ReferenceGPIO RegistersTwo registers, named PORTA and PORTC, govern the 16 GPIO pins. Each register is responsible for eight pins, and each GPIO pin uses the following four bits to completely describe its behavior:Mode (CMODE)Direction (CDIR)Special function (CSF). This is only applicable to PORTC. Data value The first three bits describe the functionality of the GPIO pin. The data bit provides the current value of the pin when read and allows control of the value of an output pin when written. In order to configure a pin as either a GPIO input or GPIO output, the corresponding bit positions in the appropriate register must be configured according to the information in the following table: Since each register controls 8 GPIO pins, it is safest to read the full 32 bit register, modify the bits corresponding to the pin, and then write the full 32 bits back. In this way, the behavior of other GPIO pins will be preserved.For more information regarding the format and programming of the GPIO registers, see the NS7520 Hardware Reference.GPIO ConfigurationInput Output–CMODE = 0–CDIR = 0– CSF = 0– CMODE = 0–CDIR = 1–CSF = 0
 21GPIO Pin UseLEDsGeneral informationThe device server has two types of LEDs: LEDs connected directly to GPIO pins on the processor and controlled directly in softwareLEDs connected to other hardware components (normally the Ethernet hardware) and not directly programmable by the operating systemThe development kit supplies software to control the LEDs. This behavior can often be modified by manipulating the LED table in the BSP code. See gpio.c for details.As with any GPIO output, the GPIO register must be properly configured in order to assert values on the pin. The appropriate bits should be configured as:CMODE = 0CDIR = 1GPIO Pin UseRegister Bit Category External Interface DescriptionPORTA7 - PORTA0 Reserved NA NAPORTC7 Reserved NA NAPORTC6 Allocated Connected to the red LEDUsed as a power indicator (always on). It could be reassigned as a general purpose LED. It must remain a GPIO output for the LED to operate correctly. The LED is lit when the signal is a logic "high."PORTC5 Available Connected to the reset button. It should be configured as a GPIO input.PORTC4 - PORTC0 Reserved NA NA
Flash22 Digi Connect SP Hardware ReferenceCSF=0About LEDsThe device server has three LEDs: The green LED is wired directly to the Ethernet hardware and indicates that a link has been established.The yellow LED is wired directly to the Ethernet hardware and signals Ethernet activity.The red LED is software programmable. It is wired to processor GPIO register bit PORTC6. The LED is wired to be active high. The development kit software is implemented by default so that this LED reflects "power" (and is, therefore, always lit).FlashGeneral InformationDigi Connect SP and Digi Connect Wi-SP device servers each have 4 MB of flash memory, which is controlled by chip select 0, located at 0x02000000.MemoryDigi Connect SP and Digi Connect Wi-SP device servers each have 16 MB of SDRAM memory, which is controlled by chip select 1, located at 0x00000000 in the processor address space and aliased at 0x04000000 and 0x08000000. The application program (EOS) is loaded at address 0x08080000.
 23Reset ButtonThe device servers have a push button connected to a GPIO pin. This pin is named "/INIT." In the processor, the GPIO register bit associated with "/INIT" is PORTC5. The GPIO pin will read as high normally, and low when the button is pushed. See "Reset Button" on page 12 for the external location.
Reset Button24 Digi Connect SP Hardware Reference
 25SpecificationsAPPENDIX ANetwork InterfacesDigi Connect SPRJ-45 connector10/100Base-THalf- and full-duplex supportDigi Connect Wi-SPStandard: IEEE 802.11bData Rate: Up to 11 Mbps with automatic fallbackWEP (64-bit and 128-bit encryption)WPA (Wi-Fi Protected Access)/WPA2/802.11i Frequency: 2.4 GHzModulation: CCK (11/5 Mbps), DQPSK (2 Mbps), DBPSK (1 Mbps)Transmit power: 16 dBm typicalReceive sensitivity: – 1Mbps: -92 dBm– 2Mbps: -89 dBm– 5.5Mbps: -87 dBm– 11Mbps: -82 dBmAntenna connector: RP-SMA
Serial Interface26 Digi Connect SP Hardware Reference10/100Base-T auto-sensingHalf- and full-duplex supportSerial InterfaceOne EIA-232/422/485 switch-selectable serial port with full modem control. Data Rates (bps)50, 110, 134, 150, 200, 300, 600, 1200, 2400, 3600, 4800, 9600, 19200, 38400, 57600, 115200, 230400Flow Control OptionsRTS/CTS, XON/XOFF, NoneEnvironmentalDigi Connect SP Digi Connect Wi-SPAmbient Temperature -40oF to 185oF(-40oC to 85oC)-4oF to 185oF (-20oC to 85oC)Storage Temperature -400F to 2570F(-400C to 1250C)Humidty 5% to 90%Altitude 12000 feet(3657.60 meters)
 27SpecificationsPower RequirementsNote: The Digi Connect SP and Digi Connect Wi-SP must be powered by a Listed LPS or Class II power supply rated 9-30 VDC, 0.37 A minimum. Mechanical DIgi Connect SPLength: 3.876 inches (9.846 cm)Width: 1.680 inches (4.267 cm)Height: 0.999 inches (2.537 cm)Unit Weight: 2.29 oz (64.92 g)Digi Connect Wi-SPLength: 4.188 inches ( 10.64cm)Width: 1.680 inches (4.267 cm)Height: 0.999 inches (2.537 cm)Unit Weight: 1.9 oz ( 53.86 g)
Antenna Information28 Digi Connect SP Hardware ReferenceAntenna InformationAntenna StrengthThe following diagram demonstrates the strength of the signal received by the antenna on both a horizontal and vertical plane. The diagram shows the magnetic field when the antenna is in a vertical position. The red line represents the horizontal plane and the dotted green lined represents the vertical plane. You can see in the illustration that at 90degrees, the signal strength is (as expected) 0.Radiation PatternsAntenna DetailsAntennaDescription Dipole DesktopPart Number DC-ANT-24DP DC-ANT-24DTFrequency 2.4~2.5 GHz 2.4~2.5 GHzPower Output 2 W 1 WDB Gain 2 dBi 1.8 dBi
 29SpecificationsAntenna Restriction in North AmericaOnly antennas of the same type listed on the FCC grant, with equal or lower antenna gain,may be used with the Digi Connect Wi-SP.VSWR < or = 2.0 1.92 maxDimension 10.0x108.5 mm 105 x4.5 mmWeight 10.5g 11 gConnector RP-SMA RP-SMAAntennaDescription Dipole Desktop
Antenna Information30 Digi Connect SP Hardware ReferenceDesktop Antenna DimensionsUnits: mm
 31SpecificationsDipole Antenna Dimensions
RF Exposure Statement32 Digi Connect SP Hardware ReferenceRF Exposure StatementThe Digi Connect Wi-SP device complies with the RF exposure limits for humans as called out in RSS-102. It is exempt from RF evaluation based on its operating frequency of 2400 MHz, and effective radiated power of 100 milliwatts. This would be less than the 3 watt requirement for a mobile device (>20 cm separation) operating at 2400 MHz.In order to comply with FCC RF exposure limits, dipole antenna should be located at a minimum distance of 7.9 inches (20 cm) or more from the body of all persons.
 33SpecificationsOverlay SpecificationsThe following specifications are for the product overlays.Digi Connect Wi-SPDigi Connect SP
Overlay Specifications34 Digi Connect SP Hardware Reference
 35CertificationsAPPENDIX BThese products comply with the following standards.FCC Part 15 Class A Radio Frequency Interference (RFI) (FCC 15.105(a) The Digi Connect SP and Digi Connect Wi-SP have been tested and found to comply with the limits for Class A digital devices 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 the user will be required to correct the interference at his own expense.Labeling Requirements (FCC 15.19) This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Industry Canada36 Digi Connect SP Hardware ReferenceModifications (FCC 15.21) Changes or modifications to this equipment not expressly approved by Digi may void the user's authority to operate this equipment. Cables (FCC 15.27) Shielded cables must be used to remain within the Class A limitations. Industry CanadaThis digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.Le present appareil numerique n'emet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques de la class A prescrites dans le Reglement sur le brouillage radioelectrique edicte par le ministere des Communications du Canada.
 37CertificationsInternational EMC StandardsThe Digi Connect SP and Digi Connect Wi-SP meet the following standards.Standards Digi Connect SP Digi ConnectWi-SPEmissionsAS/NZS 3548AS/NZS 3548 CISPR 22FCC Part 15 Subpart C(FCC ID: MCQ-50M1312) IC RSS 210 (IC:1846A-50M1312)ICES-003EN 55022 EN 61000-3-2EN 61000-3-3EN 301 489- 3EN 300 328VCCI Immunity EN 55024SafetyUL 60950-1CSA 22.2 No. 60950--1EN 60950
International EMC Standards38 Digi Connect SP Hardware Reference
 39Change LogAPPENDIX CThe following changes have been made since the last release of this document.Revision CChanged RAM from 8 MB to 16 MB.Added overlay drawings.Added desktop antenna information.Added Japan certification..
Revision C40 Digi Connect SP Hardware Reference

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