Spot STGR Globalstar STINGR User Manual STINGR Users Manual 0 2x
Spot LLC Globalstar STINGR STINGR Users Manual 0 2x
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| Document Description | Users Manual |
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| Date Submitted | 2015-08-10 00:00:00 |
| Date Available | 2015-08-10 00:00:00 |
| Creation Date | 2017-09-18 14:24:48 |
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Revision 0.2 STINGR Users Manual STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice Page |1 Revision 0.2 STINGR Users Manual Table of Contents Introduction .................................................................................................................................................................... 4 1.1 Purpose ................................................................................................................................................................... 4 1.2 Applicable Documents ............................................................................................................................................ 4 1.3 Description .............................................................................................................................................................. 4 Application ...................................................................................................................................................................... 5 2.1 Theory of Operation................................................................................................................................................ 5 2.2 Block Diagram ......................................................................................................................................................... 8 Physical Charactersistics ................................................................................................................................................. 9 Reference Design .......................................................................................................................................................... 13 4.1 Schematic .............................................................................................................................................................. 14 4.2 PCB ........................................................................................................................................................................ 15 4.3 BOM ...................................................................................................................................................................... 15 Application Programming Interface .............................................................................................................................. 16 5.1 Serial Port .............................................................................................................................................................. 16 5.2 Serial Packet Mode ............................................................................................................................................... 16 5.2.1 Serial Packet Format ..................................................................................................................................... 17 5.2.2 STX3 Legacy Serial Packet Commands .......................................................................................................... 17 5.2.2.1 Send Data (0x00) ....................................................................................................................................... 17 5.2.2.2 Query Electronic Serial Number (ESN) (0x01) ........................................................................................... 18 5.2.2.3 Abort Transmission (0x03) ........................................................................................................................ 18 5.2.2.4 Query Bursts Remaining (0x04) ................................................................................................................ 18 5.2.2.5 Query Firmware Version (0x05) ................................................................................................................ 19 5.2.2.6 Setup (0x06) .............................................................................................................................................. 19 5.2.2.7 Query Setup (0x07) ................................................................................................................................... 20 5.2.2.8 Query Hardware Version (0x09) ............................................................................................................... 21 5.2.3 STINGR Serial Packet Commands .................................................................................................................. 22 5.2.3.1 “Initiate proprietary track” command ...................................................................................................... 22 5.2.3.2 “Update Proprietary Track Data” command............................................................................................. 23 5.2.3.3 “Cancel Proprietary Track” command ...................................................................................................... 24 5.2.3.4 “Send Redundant Burst with GPS” command .......................................................................................... 25 5.2.4 06/24/15 STINGR Serial Test Commands ...................................................................................................................... 27 Revision 0.2 Subject To Change without Notice Page |2 Revision 0.2 STINGR Users Manual 5.3 “Transmitter Test” command ............................................................................................................................... 27 5.4 Example CRC calculation routines for serial packets ............................................................................................ 29 Test Modes.................................................................................................................................................................... 31 REGULATORY APPROVAL .............................................................................................................................................. 33 7.1 Radio Astronomy Site Avoidance .......................................................................................................................... 33 7.2 Regulatory Notices ................................................................................................................................................ 33 06/24/15 Revision 0.2 Subject To Change without Notice Page |3 Revision 0.2 STINGR Users Manual 1 Introduction 1.1 Purpose This document describes the physical, electrical, and functional characteristics of the STINGR satellite transmitter module. The information contained in this document is intended to provide the end user with the necessary technical information required to use the module in a custom application. This document is intended to be used by engineers and technical management and assumes a general knowledge of basic engineering practices by the user. 1.2 Applicable Documents 1.3 Description The STINGR is a simplex Satellite transmitter designed to send small packets of user defined data to a network of low earth orbiting (LEO) satellites using the Globalstar simplex satellite network. The received data is then forwarded to a user defined network interface that may be in the form of an FTP host or HTTP host where the user will interpret the data for further processing. The STINGR is a satellite transmitter radio module which contains a satellite transmitter, GPS receiver, motion sensor, and a dual band patch antenna. The STINGR is a surface mount module designed to attach to a user defined host PCB which must provide power and communications with a host processor which will control the operation of the STINGR. All electrical connections are provided via the castellated pads on the perimeter of the PCB. The STINGR is a small, low-profile device with the dimensions shown below. Figure 1 (dimensions in inches) 06/24/15 Revision 0.2 Subject To Change without Notice Page |4 Revision 0.2 STINGR Users Manual 2 Application 2.1 Theory of Operation The STINGR operates on the Globalstar LEO EO ssatellite network. LEO (Low Earth Orbit) means that there are a number of satellites in low earth orbit that constantly ly or orbit the planet and can communicate with Globalsta alstar devices that are within range of its current position. Figure 2 LEO Constellation Since the satellite position is constantly chan changing, simplex devices on the ground will transmit it (with (w no knowledge of any of the satellites locations) and the transm ansmission may be received by one or more satellites. es. These satellites will then relay the message to the nearest satellite gat gateway as shown below. Once received by the satell atellite gateway, the simplex message will be delivered to the simplex gate gateway where redundant messages are discarded and the data from the message is sent to the OEM via the Internet. net. 06/24/15 Revision 0.2 Sub Subject To Change without Notice Page |5 Revision 0.2 STINGR Users Manual Figure 3 Simplex Messaging Messages are composed of 1 or more 9-byte byte payloads. The STINGR can only transmit 9-byte on-air on messages, so user payloads greater than 9 bytes will requiree mu multiple on-air packets to be transmitted for each user use payload. There are brief periods of time where there ere iis no satellite in range of the simplex transmitters rs due du to obstructions and/or satellite coverage geometry. Sincee a simplex device has no way of knowing if a transmitt mitted message has been successfully received, the STINGR device is de designed to send multiple (redundant) transmissions ions for each message being sent over the Globalstar network. The defau efault value for the number of redundant transmissions ions per message is 3. This means that each message sent to the STINGR INGR will be transmitted 3 times. Each transmission will wil contain the exact same data payload. The redundant transmissions ons of each message will be sent on a randomized 5-min minute nominal interval. The transmission sequence for a single-packe acket message using the default setting of 3 redundant ant transmissions is shown below. 06/24/15 Revision 0.2 Sub Subject To Change without Notice Page |6 Revision 0.2 STINGR Users Manual The transmission sequence for a two-packet ket message using the default setting of 3 redundant nt transmissions tr is shown below. For normal conditions where the transmitter itter has an open view of the sky, this will result in a better bet than 99% chance that the message will be received. 06/24/15 Revision 0.2 Sub Subject To Change without Notice Page |7 Revision 0.2 STINGR Users Manual 2.2 Block Diagram The basic elements of a design utilizing the he STINGR simplex transmitter are shown below. Figure 4 ply in input. Normally, this will be a high-current battery ry which can provide the The STINGR provides a single power supply required transmit current during RF transmis smissions. The STINGR has internal regulators which h provide pr separate power for the digital, RF and GPS circuitry. This pro provides the capability to leave the STINGR in a low power po consumption state when the transmitter RF section and the GPS section is idle. The internal RF power supply is a high h power supply which is only required while the STINGR is transmit smitting a data packet. Internal cirucuitry turns this supply sup off except during active transmissions in order to minimize the power consumption of the STINGR. Since the transmission tran duty cycle is very low, this supply will be turned off thee m majority of the time and only active during the transm ansmission of a packet. Due to the random nature of the burst transmissi issions, and open collector output (PWR_EN) is provide vided by the STINGR which can directly control an external high current ent supply for VBATT (VBATT can NOT be turned offf between bet bursts when sending a multi-packet message). This will ill en ensure that the RF power supply high current mode de is enabled for the minimum amount of time to complete each ach ttransmission. It may also be monitored by the host to determine when each burst has been completed without the need eed to query the STINGR via the serial host interface. 06/24/15 Revision 0.2 Sub Subject To Change without Notice Page |8 Revision 0.2 STINGR Users Manual 3 Physical Charactersistics Figure 5 Top View 06/24/15 Revision 0.2 Subject To Change without Notice Page |9 Revision 0.2 STINGR Users Manual Figure 6 Recommended PCB footprint layout 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 10 Revision 0.2 PIN 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 NAME GND RESERVED CTS RTS RxD TxD Test2 Test1 RESERVED RESET RESERVED GND GND RESERVED RESERVED GPSTxD RESERVED GND GND PWR_EN RESERVED RESERVED RESERVED GND VBATT RESERVED GND TYPE Ground RESERVED Output Input Input Output Input Input RESERVED Input RESERVED Ground Ground RESERVED RESERVED Output RESERVED Ground Ground Output RESERVED RESERVED RESERVED Ground Power In RESERVED Ground STINGR Users Manual Description Do NOT connect 3.0V Open Collector, weak internal pull-up, may be pulled up to 5V max external 3.0V (5V tolerant), weak internal pull-up 3.0V (5V tolerant), weak internal pull-up 3.0V Open Collector, weak internal pull-up, may be pulled up to 5V max external Internal pull-up, ground or use open collector output, no external voltage to be applied Internal pull-up, ground or use open collector output, no external voltage to be applied Do NOT connect Only drive with open collector, no external voltage to be applied Do NOT connect Do NOT connect Do NOT connect 5V tolerant, weak internal pull-up, may be pulled up to 5V max external Do NOT connect Open collector output to control VRF supply Do NOT connect Do NOT connect Do NOT connect 3.0 to 5.5 Volts, 400 mA max load @ 3.7V Do NOT connect Operating Temperature Range VBATT Power Supply Operational Range -40 to +85°C 3.0 to 5.5 Volts ABSOLUTE MAXIMUM RATINGS VBATT Voltage onTxD,RxD,RTS,CTS 6.0 Volts 5.0 Volts Operating Modes Sleep Mode Active Mode Standby Mode 06/24/15 VBATT is applied, no transmissions are pending, no serial activity The STINGR is active and responding to the serial port but is not transmitting The STINGR is inactive between transmissions but is not transmitting Revision 0.2 Subject To Change without Notice P a g e | 11 Revision 0.2 Transmit Mode STINGR Users Manual The unit is transmitting an RF packet Parameter Test Conditions Min Typ Max Unit Transmit mode supply current -40-85º C, VBATT=3.7 volts 425 450 500 mA Active mode supply current 25º C, VBATT = 3.7 volts 2.3 2.5 mA Standby mode supply current 25º C, VBATT = 3.7 volts 12 50 uA Sleep mode supply current 25º C, Vcc = 3.7 volts 40 uA 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 12 Revision 0.2 STINGR Users Manual 4 Reference Design The reference design presented below illustrates a basic implementation using the STINGR module in conjunction with a primary battery, USB interface, and test mode switches. Since the battery is located on the same board as the STINGR, no decoupling capacitor is required on the VBATT input, however, if there are battery leads, lengthy power distribution, or noise sources present, a suitable decoupling capacitor might be appropriate. A ceramic XR7 10uF capacitor is usually a good choice. Switch S1 can be used to initate test modes of operation without using the USB serial interface using the settings shown in Table 6.1. Select the desired test mode and depress S3 (reset) to execute the selected test mode. When interfacing to a host processor, replace the USB serial interface with a 3.0 volt serial interface. The USB interface is powered by the USB bus, however, due to the high peak current requirements of the STINGR during transmissions, the STINGR is powered by the battery. 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 13 Revision 0.2 STINGR Users Manual 4.1 Schematic 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 14 Revision 0.2 STINGR Users Manual 4.2 PCB 4.3 BOM Manufacturer Part Number Designator Description Manufacturer Quantity BC2/3AE BAT Multicell Battery MPD GRM155R71A104KA01D C1, C3 CAP 0402 CER 100NF 10V X7R +/-10% MURATAELEC 04026D105KAT2A C2 CAP 0402 CER 100NF 10V X7R +/-10% AVXCORP SP0503BAHTG D1 3 channel ESD protection diode array Little Fuse 897-43-005-00-100001 P1 CONN HDR USB-MINI-D Mill-Max ERJ-2GEJ104X R1 RES 0402 TKF 100K 5% 1/16W Panasonic Electronic Components KAJ02LGGT S1 DIP Switch, 2 Position, SPST E-Switch MJTP1117 S3 Single-Pole, Single-Throw Switch Apem Inc. 2350-0339-01 U1 STINGR Globalstar, Inc. CP2102-GMR U2 USB-Serial Interface Silicon Labs 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 15 Revision 0.2 STINGR Users Manual 5 Application Programming Interface 5.1 Serial Port A half-duplex (0-3.0V) TTL asynchronous serial port (UART) is the primary interface to the user equipment. The serial port operates with the serial parameters of 9600bps, 8 data bits, no parity, 1 stop bit. The RX data input and the RTS inputs are 5V tolerant. The TX data and CTS outputs are 0-3.0V TTL. RS232 input levels are not supported. RS232 data must be converted to TTL before being sent to the unit. Each command from the DTE to the STINGR is sent in a serial packet. Upon receiving the command, the modem answers to the DTE and, if applicable, executes the command. In order to wake the STINGR from sleep mode and to indicate the end of the serial packet, each serial packet must be framed by activating RTS before the first byte of the command and deactivating RTS after the last byte of the command. STINGR pins Host pins RTS < 25 ms < 125 ms CTS TxD Command RxD Response TxD 1. 2. 3. 4. 5. 6. RxD Lower RTS Wait for CTS to go low Send Command to STINGR Raise RTS STINGR raises CTS STINGR sends response 5.2 Serial Packet Mode This mode is the legacy mode of operation as implemented in the STX2 and STX3 which consists of binary data packets. 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 16 Revision 0.2 5.2.1 STINGR Users Manual Serial Packet Format Preamble Length Command Fixed patte tern 0xAA Total numbber of bytes in the serial packet including the pre reamble Commandd type (See Table 5 Serial Packet Type). Responsses to commandss carry the same command type as the command d that initiated the he answer Data associ ciated with the command or answer 16 bit CRC Data CRC Figure 7 Serial Packet Format 5.2.2 STX3 Legacy Serial Packet Comma mmands For all serial packet commands as described bed below: • • • • • • AA is the Preamble. NN is the Length. XX is an unspecified byte value CLSB is the least significant CRC byte CMSB is the most significant CRC byt byte If an improperly formatted comman mand is received, the STINGR will return a NAK response onse: AA 05 FF A1 CB 5.2.2.1 Send Data (0x00) The Send Data command requests the STING INGR to send from 1 to 144 data bytes over the Globals balstar Simplex network. 0x00 Leader Len cmd payload payload payload .. pa ayload CRC1 CRC2 AA NN 00 XX XX XX XX XX CLSB CMSB Example Command: AA 0E 00 01 02 033 04 05 06 07 08 09 BE E8 Response: AA 05 00 D9 C4 The example above commands the STINGR to send 9 bytes of user defined data over the Global obalstar Simplex network. If the STINGR receives a properly formatted d Se Send Data command, it returns an acknowledge respo esponse as shown above. If the command is not properly formatted, it w will return the NAK response AA 05 FF A1 CB. 06/24/15 Revision 0.2 Sub Subject To Change without Notice P a g e | 17 Revision 0.2 STINGR Users Manual 5.2.2.2 Query Electronic Serial Number (ESN) (0x01) The Electronic Serial Number command requests the STINGR to respond with the units Electronic Serial Number (ESN). 0x01 Command: Leader Len Cmd CRC1 CRC2 AA 05 01 50 D5 AA 05 01 50 D5 Response: Leader len Cmd AA 09 01 Example Response: ESN XX XX XX XX CRC1 CRC2 86 7A AA 09 01 00 23 18 60 86 7A Where the ESN returned is 2300000. 5.2.2.3 Abort Transmission (0x03) The Abort Transmission command requests the STINGR to abort the current message transmit sequence over the Globalstar Simplex network. 0x03 Leader len Cmd CRC1 CRC2 AA 05 03 42 F6 Command: AA 05 03 42 F6 Response: AA 05 03 42 F6 5.2.2.4 Query Bursts Remaining (0x04) The Query Bursts Remaining command requests the STINGR to return the current number of bursts remaining the current message transmit sequence over the Globalstar Simplex network. 0x04 Leader len cmd CRC1 CRC2 AA 05 04 FD 82 Command: AA 06 04 00 F4 33 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 18 Revision 0.2 STINGR Users Manual Response: Leader Len 04 count CRC1 CRC2 AA 05 04 XX CC CC Example Response: AA 06 04 00 F4 33 Where the bursts remaining returned is: 5.2.2.5 Query Firmware Version (0x05) The Query Firmware Version command requests the STINGR to return the current firmware version. 0x05 Command: Leader Len cmd CRC1 CRC2 AA 05 05 74 93 AA 05 05 74 93 Response: Leader Len FW major FW minor CRC1 CRC2 AA XX XX CC CC Example Response: AA 07 05 01 07 E0 6A Where the firmware version returned is: 1.7 5.2.2.6 Setup (0x06) The Setup command requests the STINGR to use the specified current setup parameters. These are stored in nonvolatile memory. 0x06 Command: header len 04 AA 06/24/15 RESERVED RF channel # of Bursts Interval Min Interval Max RESERVED CRC1 CRC2 0E 06 XX XX XX XX Revision 0.2 XX XX XX XX Subject To Change without Notice XX CC P a g e | 19 CC Revision 0.2 STINGR Users Manual Where: • • • • RF channel : # of bursts: Minimum Burst Interval: Maximum Burst Interval: Example Command: Valid values are: 0 = Channel A, 1 = Channel B, 2 = Channel C, 3 = Channel D Valid values are: 0x01 thru x14 (1 to 20 bursts) Units of 5 seconds. Valid values are: 0x01 thru 0x3C (5 to 300 seconds) Units of 5 seconds. Valid values are: 0x02 thru 0x78 (10 to 600 seconds) AA 0E 06 00 00 00 00 00 03 18 30 00 CE 9C Where the setup information is: • • • • RF channel : # of bursts: Minimum Burst Interval: Maximum Burst Interval: 00 03 18 30 Channel A 3 bursts per message 0x18 = 24, 24 x 5 = 120 seconds 0x30 = 48, 48 x 5 = 240 seconds 5.2.2.7 Query Setup (0x07) The Query Setup command requests the STINGR to return the current setup parameters. 0x07 Leader len cmd CRC1 CRC2 AA 05 07 66 B0 Command: AA 05 07 66 B0 Response: Leader len cmd AA 0E 07 RESERVED XX XX XX XX RF channel # of Bursts Interval Min Interval Max RESERVED CRC1 CRC2 XX XX XX XX XX 18 59 Where: • • • • RF channel : # of bursts: Minimum Burst Interval: Maximum Burst Interval: Example Response: 06/24/15 Valid values are: 0 = Channel A, 1 = Channel B, 2 = Channel C, 3 = Channel D Valid values are: 0x01 thru x14 (1 to 20 bursts) Units of 5 seconds. Valid values are: 0x01 thru 0x3C (5 to 300 seconds) Units of 5 seconds. Valid values are: 0x02 thru 0x78 (10 to 600 seconds) AA 0E 07 00 23 18 60 00 03 18 30 00 5D 60 Revision 0.2 Subject To Change without Notice P a g e | 20 Revision 0.2 STINGR Users Manual Where the setup information returned is: • • • • RF channel : # of bursts: Minimum Burst Interval: Maximum Burst Interval: 00 03 18 30 Channel A 3 bursts per message 0x18 = 24, 24 x 5 = 120 seconds 0x30 = 48, 48 x 5 = 240 seconds 5.2.2.8 Query Hardware Version (0x09) The Query Hardware Version command requests the STINGR to return the current hardware version information. 0x09 Command: Leader len Cmd CRC1 CRC2 AA 05 09 18 59 AA 05 09 18 59 Response: Leader len 04 AA 0A 09 Device Code 00 01 Board Rev CPU Rev Radio Rev CRC1 CRC2 XX XX XX CC CC Where: • • • • Device Code : Board Revision: CPU Revision: Radio Revision: Example Response: Always 1 for STINGR STINGR hardware revision STINGR CPU revision STINGR radio revision AA 0A 09 00 01 00 8E 62 E5 5E Where the revision information returned is: • • • Board Revision: CPU Revision: Radio Revision: 06/24/15 Revision 0.2 00 8E 62 Subject To Change without Notice P a g e | 21 Revision 0.2 5.2.3 STINGR Users Manual STINGR Serial Packet Commands 5.2.3.1 “Initiate proprietary track” command This command allows the initiation of a periodic track with user defined data prepended and appended to the latitude and longitude fields. A periodic 9 byte custom track message, transmitted nominally at the interval specified, will result. Initiate proprietary track command format Byte Bits Parameter Description 0–7 Leader 0–7 Length 0–7 Command Code. 3 -4 0 - 15 Interval 0-7 Byte 0 value 0-7 Byte 7 value 0-7 Byte 8 value 8-9 0 - 15 CRC Always a value of 0xAA. 0x0A (decimal 10) 0x30 = Initiate proprietary track. Interval in minutes between the track points. MIN and MAX allowed TBD. The value to transmit as byte 0 The value to transmit as byte 7. The value to transmit as byte 8. Leader len Cmd Interval (MSB) Interval (LSB) Byte 0 Byte 7 Byte 8 CRC1 CRC2 AA 0A 30 00 05 AA BB CC 18 59 Example Command: AA 0A 30 00 05 AA BB CC 69 36 Where: • • • • Period : Payload Byte 0: Payload Byte 7: Payload Byte 8: 06/24/15 Revision 0.2 0x0005 (5 minute intervals) 0xAA 0xBB 0xCC Subject To Change without Notice P a g e | 22 Revision 0.2 STINGR Users Manual Initiate proprietary track response Byte Parameter Description 0-7 Leader 0-7 Length 0-7 Command Code. 3 -4 0 - 15 CRC Example Response: 5.2.3.2 Bits Always a value of 0xAA. 0x30 = ACK or 0xFF = NAK AA 05 30 5A F5 “Update Proprietary Track Data” command This command is used to change the user programmable data in a proprietary track message. If a proprietary track session is not in progress, it is ACK’d but will do nothing. Update proprietary track data command format Byte Bits Parameter 0–7 Leader 0–7 Length 0–7 Command Code. 0–7 Byte 0 value 0–7 Byte 7 value 0–7 Byte 8 value 6-7 0 – 15 CRC Always a value of 0xAA. 0x08 0x31 = Update proprietary track. The value to transmit as byte 0 The value to transmit as byte 7. The value to transmit as byte 8. Leader Len Cmd Byte 0 Byte 7 Byte 8 CRC1 CRC2 AA 08 31 AA BB CC 18 59 Example Command: 06/24/15 Description AA 08 31 BB CC DD AC 99 Revision 0.2 Subject To Change without Notice P a g e | 23 Revision 0.2 STINGR Users Manual Where: • • • Payload Byte 0: Payload Byte 7: Payload Byte 8: 0xAA 0xBB 0xCC Update Proprietary Track Data response Byte Parameter 0-7 Leader 0-7 Length 0-7 Command Code. 3 -4 0 - 15 CRC Example Response: 5.2.3.3 Bits Description Always a value of 0xAA. 0x31 = ACK or 0xFF = NAK AA 05 31 D3 E4 “Cancel Proprietary Track” command This command is used to terminate a proprietary track session. Cancel Proprietary Track command format Byte Bits Parameter 0-7 Leader 0-7 Length 0-7 Command Code. 3-4 0 - 15 CRC Example Command: 06/24/15 Description Always a value of 0xAA. 0x05 0x32 = cancel proprietary track. Leader Len Cmd CRC1 CRC2 AA 05 32 48 D6 AA 05 32 48 D6 Revision 0.2 Subject To Change without Notice P a g e | 24 Revision 0.2 STINGR Users Manual Cancel Proprietary Track response Byte Bits Parameter 0-7 Leader 0-7 Length 0-7 Command Code. 3 -4 0 - 15 CRC Example Response: Description Always a value of 0xAA. 0x32 = ACK or 0xFF = NAK AA 05 32 48 D6 5.2.3.4 “Send Redundant Burst with GPS” command This command is used to initiate a redundant bursted message (as setup in STX configuration). Bytes 1 – 6 of the first packet of the message shall contain latitude and longitude in standard Globalstar 24 bit format. Send Redundant Burst with GPS command format Byte Bits Parameter 0-7 Leader 0-7 Length 0-7 Command Code. 0-7 Byte 0 value 0-7 Byte 7 value 0-7 Byte 8 value 6-n n+1n+2 06/24/15 Additional data 0 - 15 Revision 0.2 Description Always a value of 0xAA. Variable 0x08 – 0x90 (144 bytes) 0x33 = Send Redundant Burst with GPS. The value to transmit as byte 0 of first packet The value to transmit as byte 7 of first packet The value to transmit as byte 8 of first packet Up to 135 additional bytes of data (15 9 byte packets). Maximum value of n = 141. If this number is not divisable by 9, the end of the final packet of the message will be zero padded. CRC Subject To Change without Notice P a g e | 25 Revision 0.2 STINGR Users Manual Leader Len Cmd Byte 0 Byte 7 Byte 8 CRC1 CRC2 AA 08 33 AA BB CC 57 C3 Example Command: AA 08 33 AA BB CC 57 C3 Where: • • • Payload Byte 0: Payload Byte 7: Payload Byte 8: Example Command: 0xAA 0xBB 0xCC AA 11 33 01 02 03 04 05 06 07 08 09 0A 0B 0C 57 C3 Where: • • • • • • • • • • • • Payload Byte 0: Payload Byte 7: Payload Byte 8: Payload Byte 9: Payload Byte 10: Payload Byte 11: Payload Byte 12: Payload Byte 13: Payload Byte 14: Payload Byte 15: Payload Byte 16: Payload Byte 17: 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C Send Redundant Burst with GPS response Byte Parameter 0-7 Leader 0-7 Length 0-7 Command Code. 3 -4 0 - 15 CRC Example Response: 06/24/15 Bits Description Always a value of 0xAA. 0x33 = ACK or 0xFF = NAK AA 05 33 C1 C7 Revision 0.2 Subject To Change without Notice P a g e | 26 Revision 0.2 5.2.4 STINGR Users Manual STINGR Serial Test Commands 5.3 “Transmitter Test” command This command is used to initiate a transmitter test in one of three modes. Transmitter test command format Byte Bits Parameter 0-7 Leader 0-7 Length 0-7 Command Code. 0-7 Test mode 4–5 0 - 15 CRC Example Command: Description Always a value of 0xAA. 0x06 0xFC = Transmitter test. The following test modes may be selected: 0x01 = CW Mode 0x02 = Transmit single test packet. 0x03 = Mod mode. Transmit a continuous signal modulated with a bit pattern. Leader Len Cmd Test Mode CRC1 CRC2 AA 06 FC 02 2E A2 AA 06 FC 02 2E A2 Where: • Test Mode: 06/24/15 Revision 0.2 0x02 = Single Test Packet Subject To Change without Notice P a g e | 27 Revision 0.2 STINGR Users Manual Table 50: Transmitter test response format. Byte Bits Parameter 0-7 Leader 0-7 Length 0-7 ACK or NAK 3-4 0 - 15 CRC Example Response: 06/24/15 Description Always a value of 0xAA. 0x05 0xFC for success, 0xFF for incorrectly formatted command. A value for the test mode other than 0x01, 0x02, or 0x03 will generate a NAK. AA 05 FC 3A F9 Revision 0.2 Subject To Change without Notice P a g e | 28 Revision 0.2 STINGR Users Manual 5.4 Example CRC calculation routines for serial packets The following example is written in the C programming language where: int = 32 bits, short = 16 bits, char = 8 bits unsigned short crc16_lsb(unsigned char *pData, int length) unsigned char i; unsigned short data, crc; crc = 0xFFFF; if (length == 0) return 0; do data = (unsigned int)0x00FF & *pData++; crc = crc ^ data; for (i = 8; i > 0; i--) if (crc & 0x0001) crc = (crc >> 1) ^ 0x8408; else crc >>= 1; }while (--length); crc = ~crc; return (crc); USAGE: 06/24/15 calculate the CRC for a message and update the message CRC unsigned short crc = crc16_lsb(msg, msg [1]-2); msg [msg [1]-2] = (unsigned char) (crc&0xFF); msg [msg [1]-1] = (unsigned char) (crc>>8); Revision 0.2 Subject To Change without Notice P a g e | 29 Revision 0.2 STINGR Users Manual The following example is written in the Java programming language: char crc16_lsb(byte pData[], int length) int pData_i = 0; char s1,s2; byte i; char data, crc; crc = (char) 0xFFFF; if (length == 0) return 0; do data = (char)((char)0x00FF & pData[pData_i++]); crc = (char)(crc ^ data); for (i = 8; i > 0; i--) if ((crc & 0x0001) != 0) crc = (char)((crc >> 1) ^ 0x8408); else crc >>= 1; }while (--length != 0); crc = (char)~crc; return (crc); USAGE: calculate the CRC for a message and update the message CRC byte msg[]; int len; char crc = crc16_lsb(msg,len-2); msg[len-2] = (byte)((short)crc & (short)0xff); msg[len-1] = (byte)((short)crc >> 8); 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 30 Revision 0.2 STINGR Users Manual 6 Test Modes The STINGR provides several test modes intended to aid in manufacturing testing and certification testing. All test modes are activated by grounding selective pins on the STINGR prior to applying power. Once power is applied, the STINGR will sample the states of the pins and based on the states of the pins, the STINGR will enter the selected test mode. For normal operation these pins must be left floating or in a high (logic 1) state. The following tables define the different test modes available in the STINGR. TEST1 TEST2 Mode Mod Mode (continuous transmission) - A test packet is continuously transmitted. The test packet shall comply with the Air Interface Packet format with a user information equal to the hex stream 0x80AAF0F0F0AAF0F0F0 where the most significant bit is transmitted first Test Packet - The test packet shall comply with the Air Interface Packet format with a user information equal to the hex stream 0x80AAF0F0F0AAF0F0F0 where the most significant bit is transmitted first CW mode - An un-modulated carrier is continuously transmitted. Normal Operation Table 6.1 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 31 Revision 0.2 STINGR Users Manual The channels are selected via the Rx and RTS pins as follows RX RTS Channel Channel specified in the flash setup. To specify channel A, it must be the default channel specified in the flash setup. See Setup command for details. Table 6.2 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 32 Revision 0.2 STINGR Users Manual 7 REGULATORY APPROVAL The STINGR module has received regulatory approvals for modular devices in the United States and Canada. Modular device approval allows the end user to place the STINGR module inside a finished product and not require regulatory testing for an intentional radiator (RF transmitter), provided no changes or modifications are made to the module circuitry. Changes or modifications could void the user’s authority to operate the equipment. The end user must comply with all of the instructions provided by the Grantee, which indicate installation and/or operating conditions necessary for compliance. The integrator is still responsible for testing the end product for any additional compliance requirements required with this module installed (digital device emission, PC peripheral requirements, etc.) in the specific country that the end device will be marketed. For more information on regulatory compliance, refer to the specific country radio regulations in the following sections. 7.1 Radio Astronomy Site Avoidance The end user device must comply with the requirements for Radio Astronomy Site avoidance as specified by the Globalstar National Science Foundation agreement of 2001. It must be compliant with CFR25.213. 7.2 Regulatory Notices The STINGR has received Federal Communications Commission authorization under FCC Rules Part 25 as a modular transmitter. Final installation must be in compliance with 25.213 (see 6.1 above). The installation and operating configurations of this transmitter must satisfy MPE categorical Exclusion Requirements of 2.1091. The antenna used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be collocated or operating in conjunction with any other antenna or transmitter. The STINGR module has been labeled with its own FCC and Industry Canada (IC) ID numbers, and if the FCC/IC ID numbers are not visible when the module is installed inside another device, then the outside of the finished product into which the module is installed must also display a label referring to the enclosed module: Contains Transmitter Module FCC ID: L2V-STGR IC: 3989A-STGR This device complies with Part 15 of the 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. 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 33 Revision 0.2 STINGR Users Manual The user’s manual should include the following statements: 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 in a residential installation. This equipment generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. 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. WARNING: Changes or modifications not expressly approved by Globalstar may render the device non-compliant to FCC and other regulatory body standards for operation and may void the user’s authority to operate the equipment. This device complies with Part 15 of the 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. This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de classe B est conforme à la norme NMB003. This device will operate in accordance to the standards set forth by the CE Mark Directives and standards R&TTE: (TBR41 v1.1.1 May 2000, EN 301 441), RFI: (EN61000-4-3:1996 + A1:1998 + A2:2000), ESD: (EN61000-4-2: 1995 + A1:1998) NOTICE: This equipment complies with the FCC RF Exposure Limits. A minimum of 20 centimeters (8 inches) separation between the device and the user and all other persons should be maintained. AVIS: Cet équipement est conforme aux RSS-102 Limites d'exposition RF. Un minimum de 20 centimètres (8 pouces) entre l'appareil et l'utilisateur et toutes les autres personnes devrait être maintenue. 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 34 Revision 0.2 STINGR Users Manual FCC ID: L2V-STGR ICES-003/(A/B) IC:3989A-STGR R&TTE: TBR41 Complies with FCC standards. FOR HOME OR OFFICE USE 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 35
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