Spot STGR Globalstar STINGR User Manual STINGR Users Manual 0 2x

Spot LLC Globalstar STINGR STINGR Users Manual 0 2x

Users Manual

Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 1 STINGR Users Manual
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 2 Table of Contents 1 Introduction .................................................................................................................................................................... 4 1.1 Purpose ................................................................................................................................................................... 4 1.2 Applicable Documents ............................................................................................................................................ 4 1.3 Description .............................................................................................................................................................. 4 2 Application ...................................................................................................................................................................... 5 2.1 Theory of Operation ................................................................................................................................................ 5 2.2 Block Diagram ......................................................................................................................................................... 8 3 Physical Charactersistics ................................................................................................................................................. 9 4 Reference Design .......................................................................................................................................................... 13 4.1 Schematic .............................................................................................................................................................. 14 4.2 PCB ........................................................................................................................................................................ 15 4.3 BOM ...................................................................................................................................................................... 15 5 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 STINGR Serial Test Commands ...................................................................................................................... 27
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 3 5.3 “Transmitter Test” command ............................................................................................................................... 27 5.4 Example CRC calculation routines for serial packets ............................................................................................ 29 6 Test Modes .................................................................................................................................................................... 31 7 REGULATORY APPROVAL .............................................................................................................................................. 33 7.1 Radio Astronomy Site Avoidance .......................................................................................................................... 33 7.2 Regulatory Notices ................................................................................................................................................ 33
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 4 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)
Revision 0.206/24/15 Revision 0.2 Subject To Change without Notice2 Application 2.1 Theory of Operation The STINGR operates on the Globalstar LEO satellite network. LEO (Low Earth Orbit) means that there are a number of satellites in low earth orbit that constantly orbit the planet and can communicate with Globalstar devices that are within range of its current position. Since the satellite position is constantly changing, simplex devices on the ground will any of the satellites locations) and the transmissionrelay the message to the nearest satellite gateway as shown below. Once received by the message will be delivered to the simplex gateway where redundant messages are discarded and the data from the message is sent to the OEM via the Internet.Revision 0.2 STINGR Users Manual Subject To Change without Notice P a g eoperates on the Globalstar LEO satellite network. LEO (Low Earth Orbit) means that there are a number of tly orbit the planet and can communicate with Globalstar devices that are within Figure 2 LEO Constellation Since the satellite position is constantly changing, simplex devices on the ground will transmit (with no knowledge of the transmission may be received by one or more satellites. These satellites will then gateway as shown below. Once received by the satellite simplex gateway where redundant messages are discarded and the data from the message is sent to the OEM via the Internet. P a g e | 5 operates on the Globalstar LEO satellite network. LEO (Low Earth Orbit) means that there are a number of tly orbit the planet and can communicate with Globalstar devices that are within transmit (with no knowledge of may be received by one or more satellites. These satellites will then satellite gateway, the simplex simplex gateway where redundant messages are discarded and the data from the
Revision 0.206/24/15 Revision 0.2 Subject To Change without NoticeMessages are composed of 1 or more 9-byte payloads. The payloads greater than 9 bytes will require multiple onThere are brief periods of time where there is no satellite in range of the simplex transmitters due to obstructions and/or satellite coverage geometry. Since a simplex device has no way of knowing if a transmitted message has been successfully received, the STINGR device is designed to sent over the Globalstar network. The default value for the number of redundant means that each message sent to the STINGRdata payload. The redundant transmissions The transmission sequence for a single-packet message using the default setting of 3 redundantbelow. Revision 0.2 STINGR Users Manual Subject To Change without Notice P a g eFigure 3 Simplex Messaging byte payloads. The STINGR can only transmit 9-byte onpayloads greater than 9 bytes will require multiple on-air packets to be transmitted for each user payload. here there is no satellite in range of the simplex transmitters due to obstructions satellite coverage geometry. Since a simplex device has no way of knowing if a transmitted message has been device is designed to send multiple (redundant) transmissionssent over the Globalstar network. The default value for the number of redundant transmissionsSTINGR will be transmitted 3 times. Each transmission will contain the exact same The redundant transmissions of each message will be sent on a randomized 5-minute packet message using the default setting of 3 redundant P a g e | 6 byte on-air messages, so user to be transmitted for each user payload. here there is no satellite in range of the simplex transmitters due to obstructions satellite coverage geometry. Since a simplex device has no way of knowing if a transmitted message has been multiple (redundant) transmissions for each message being transmissions per message is 3. This ach transmission will contain the exact same minute nominal interval. packet message using the default setting of 3 redundant transmissions is shown
Revision 0.206/24/15 Revision 0.2 Subject To Change without NoticeThe transmission sequence for a two-packet message using the default setting of 3 redundant transmissions is shown below. For normal conditions where the transmitter has an open view of the sky, this will result in a bettthat the message will be received. Revision 0.2 STINGR Users Manual Subject To Change without Notice P a g epacket message using the default setting of 3 redundant transmissions is shown For normal conditions where the transmitter has an open view of the sky, this will result in a bett P a g e | 7 packet message using the default setting of 3 redundant transmissions is shown For normal conditions where the transmitter has an open view of the sky, this will result in a better than 99% chance
Revision 0.206/24/15 Revision 0.2 Subject To Change without Notice2.2 Block Diagram The basic elements of a design utilizing the The STINGR provides a single power supply input.required transmit current during RF transmissions.for the digital, RF and GPS circuitry. This provides the capability to leave the when the transmitter RF section and the GPS sectionis only required while the STINGR is transmitting a data packet.active transmissions in order to minimize the power consumption of the STINGR. very low, this supply will be turned off the majority of the time and only active during the transmission of a pato the random nature of the burst transmissions, and open collector output (PWR_EN) is provided by the can directly control an external high current supply for sending a multi-packet message). This will ensure that the RF power supplyminimum amount of time to complete each transmission. It may also be monitored by the host to determine when each burst has been completed without the need to Revision 0.2 STINGR Users Manual Subject To Change without Notice P a g eThe basic elements of a design utilizing the STINGR simplex transmitter are shown below. Figure 4 power supply input. Normally, this will be a high-current battery which can provide the required transmit current during RF transmissions. The STINGR has internal regulators which provide separate power . This provides the capability to leave the STINGR in a low power consumption state and the GPS section is idle. The internal RF power supply is a high power is transmitting a data packet. Internal cirucuitry turns this supply off except during active transmissions in order to minimize the power consumption of the STINGR. Since the transmission duty cycle is be turned off the majority of the time and only active during the transmission of a pato the random nature of the burst transmissions, and open collector output (PWR_EN) is provided by the high current supply for VBATT (VBATT can NOT be turned off between bursts when This will ensure that the RF power supply high current modeamount of time to complete each transmission. It may also be monitored by the host to determine when each burst has been completed without the need to query the STINGR via the serial host interface. P a g e | 8 current battery which can provide the The STINGR has internal regulators which provide separate power in a low power consumption state RF power supply is a high power supply which supply off except during Since the transmission duty cycle is be turned off the majority of the time and only active during the transmission of a packet. Due to the random nature of the burst transmissions, and open collector output (PWR_EN) is provided by the STINGR which VBATT can NOT be turned off between bursts when high current mode is enabled for the amount of time to complete each transmission. It may also be monitored by the host to determine when each
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 9 3 Physical Charactersistics Figure 5 Top View
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 10 Figure 6 Recommended PCB footprint layout
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 11 PIN NAME TYPE Description 1 GND Ground 2 RESERVED RESERVED Do NOT connect 3 CTS Output 3.0V Open Collector, weak internal pull-up, may be pulled up to 5V max external 4 RTS Input 3.0V (5V tolerant), weak internal pull-up 5 RxD Input 3.0V (5V tolerant), weak internal pull-up 6 TxD Output 3.0V Open Collector, weak internal pull-up, may be pulled up to 5V max external 7 Test2 Input Internal pull-up, ground or use open collector output, no external voltage to be applied 8 Test1 Input Internal pull-up, ground or use open collector output, no external voltage to be applied 9 RESERVED RESERVED Do NOT connect 10 RESET Input Only drive with open collector, no external voltage to be applied 11 RESERVED RESERVED Do NOT connect 12 GND Ground 13 GND Ground 14 RESERVED RESERVED Do NOT connect 15 RESERVED RESERVED Do NOT connect 16 GPSTxD Output 5V tolerant, weak internal pull-up, may be pulled up to 5V max external 17 RESERVED RESERVED Do NOT connect 18 GND Ground 19 GND Ground 20 PWR_EN Output Open collector output to control VRF supply 21 RESERVED RESERVED Do NOT connect 22 RESERVED RESERVED Do NOT connect 23 RESERVED RESERVED Do NOT connect 24 GND Ground 25 VBATT Power In 3.0 to 5.5 Volts, 400 mA max load @ 3.7V 26 RESERVED RESERVED Do NOT connect 27 GND Ground Operating Temperature Range -40 to +85°C VBATT Power Supply Operational Range 3.0 to 5.5 Volts ABSOLUTE MAXIMUM RATINGS VBATT 6.0 Volts Voltage onTxD,RxD,RTS,CTS 5.0 Volts Operating Modes Sleep Mode VBATT is applied, no transmissions are pending, no serial activity Active Mode The STINGR is active and responding to the serial port but is not transmitting Standby Mode The STINGR is inactive between transmissions but is not transmitting
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 12 Transmit Mode 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 8 40 uA
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 13 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.
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 14 4.1 Schematic
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 15 4.2 PCB 4.3 BOM Manufacturer Part Number Designator Description Manufacturer Quantity BC2/3AE BAT Multicell Battery MPD 1 GRM155R71A104KA01D C1, C3 CAP 0402 CER 100NF 10V X7R +/-10% MURATAELEC 2 04026D105KAT2A C2 CAP 0402 CER 100NF 10V X7R +/-10% AVXCORP 1 SP0503BAHTG D1 3 channel ESD protection diode array Little Fuse 1 897-43-005-00-100001 P1 CONN HDR USB-MINI-D Mill-Max 1 ERJ-2GEJ104X R1 RES 0402 TKF 100K 5% 1/16W Panasonic Electronic Components 1 KAJ02LGGT S1 DIP Switch, 2 Position, SPST E-Switch 1 MJTP1117 S3 Single-Pole, Single-Throw Switch Apem Inc. 1 2350-0339-01 U1 STINGR Globalstar, Inc. 1 CP2102-GMR U2 USB-Serial Interface Silicon Labs 1
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 16 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. 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. CommandResponseRTSCTSRxDTxD< 125 ms< 25 ms1. Lower RTS2. Wait for CTS to go low3. Send Command to STINGR4. Raise RTS5. STINGR raises CTS6. STINGR sends responseSTINGR pins Host pinsTxDRxD
Revision 0.206/24/15 Revision 0.2 Subject To Change without Notice5.2.1 Serial Packet Format Preamble Fixed pattern 0xAA Length Total number of bytes in the serial packet including the preamble Command Command type (See Table 5 Serial Packet Type). Responses to commands carry the same command type as the command that initiated the answer Data Data associated with the command or answer CRC 16 bit CRC 5.2.2 STX3 Legacy Serial Packet CommandsFor all serial packet commands as described 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 byte• If an improperly formatted command is received, the 5.2.2.1 Send Data (0x00) The Send Data command requests the STINGR0x00 Leader Len cmd AA NN 00 Example Command: AA 0E 00 01 02 03 04 05 06 07 08 09Response: AA 05 00 D9 C4 The example above commands the STINGR the STINGR receives a properly formatted Send Data command, it returns an acknowledge response as shown above. If the command is not properly formatted, it will return the NAK response Revision 0.2 STINGR Users Manual Subject To Change without Notice P a g eFixed pattern 0xAA Total number of bytes in the serial packet including the preamble Command type (See Table 5 Serial Packet Type). Responses to commands carry the same command type as the command that initiated the answer Data associated with the command or answer 16 bit CRC Figure 7 Serial Packet Format Serial Packet Commands as described below: byte byte operly formatted command is received, the STINGR will return a NAK response:AA 05 FF A1 CB STINGR to send from 1 to 144 data bytes over the Globalstar Simplex network. payload 1 payload 2 payload 3 .. payload XX XX XX XX 01 02 03 04 05 06 07 08 09 BE E8 to send 9 bytes of user defined data over the Globalstar Simplex network.receives a properly formatted Send Data command, it returns an acknowledge response as shown above. If the command is not properly formatted, it will return the NAK response AA 05 FF A1 CB. P a g e | 17 Total number of bytes in the serial packet including the preamble Command type (See Table 5 Serial Packet Type). Responses to commands carry the same command type as the command that will return a NAK response: to send from 1 to 144 data bytes over the Globalstar Simplex network. payload N CRC1 CRC2 XX CLSB CMSB he Globalstar Simplex network. If receives a properly formatted Send Data command, it returns an acknowledge response as shown above. If
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 18 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 Leader Len Cmd CRC1 CRC2 AA 05 01 50 D5 Command: AA 05 01 50 D5 Response: Leader len Cmd ESN CRC1 CRC2 AA 09 01 XX XX XX XX 86 7A Example Response: 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
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 19 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: 0 5.2.2.5 Query Firmware Version (0x05) The Query Firmware Version command requests the STINGR to return the current firmware version. 0x05 Leader Len cmd CRC1 CRC2 AA 05 05 74 93 Command: AA 05 05 74 93 Response: Leader Len 4 FW major FW minor CRC1 CRC2 AA 7 5 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 non-volatile memory. 0x06 Command: header len 04 RF channel # of Bursts Interval Min Interval Max RESERVED CRC1 CRC2AA 0E 06 XX XX XX XX XX XX XX XX XX CC CCRESERVED
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 20 Where: • RF channel : Valid values are: 0 = Channel A, 1 = Channel B, 2 = Channel C, 3 = Channel D • # of bursts: Valid values are: 0x01 thru x14 (1 to 20 bursts) • Minimum Burst Interval: Units of 5 seconds. Valid values are: 0x01 thru 0x3C (5 to 300 seconds) • Maximum Burst Interval: Units of 5 seconds. Valid values are: 0x02 thru 0x78 (10 to 600 seconds) Example Command: AA 0E 06 00 00 00 00 00 03 18 30 00 CE 9C Where the setup information is: • RF channel : 00 Channel A • # of bursts: 03 3 bursts per message • Minimum Burst Interval: 18 0x18 = 24, 24 x 5 = 120 seconds • Maximum Burst Interval: 30 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 RESERVED RF channel # of Bursts Interval Min Interval Max RESERVED CRC1 CRC2 AA 0E 07 XX XX XX XX XX XX XX XX XX 18 59 Where: • RF channel : Valid values are: 0 = Channel A, 1 = Channel B, 2 = Channel C, 3 = Channel D • # of bursts: Valid values are: 0x01 thru x14 (1 to 20 bursts) • Minimum Burst Interval: Units of 5 seconds. Valid values are: 0x01 thru 0x3C (5 to 300 seconds) • Maximum Burst Interval: Units of 5 seconds. Valid values are: 0x02 thru 0x78 (10 to 600 seconds) Example Response: AA 0E 07 00 23 18 60 00 03 18 30 00 5D 60
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 21 Where the setup information returned is: • RF channel : 00 Channel A • # of bursts: 03 3 bursts per message • Minimum Burst Interval: 18 0x18 = 24, 24 x 5 = 120 seconds • Maximum Burst Interval: 30 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 Leader len Cmd CRC1 CRC2 AA 05 09 18 59 Command: AA 05 09 18 59 Response: Leader len 04 Device Code Board Rev CPU Rev Radio Rev CRC1 CRC2 AA 0A 09 00 01 XX XX XX CC CC Where: • Device Code : Always 1 for STINGR • Board Revision: STINGR hardware revision • CPU Revision: STINGR CPU revision • Radio Revision: STINGR radio revision Example Response: AA 0A 09 00 01 00 8E 62 E5 5E Where the revision information returned is: • Board Revision: 00 • CPU Revision: 8E • Radio Revision: 62
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 22 5.2.3 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 0 – 7 Leader Always a value of 0xAA. 1 0 – 7 Length 0x0A (decimal 10) 2 0 – 7 Command Code. 0x30 = Initiate proprietary track. 3 -4 0 - 15 Interval Interval in minutes between the track points. MIN and MAX allowed TBD. 5 0 - 7 Byte 0 value The value to transmit as byte 0 6 0 - 7 Byte 7 value The value to transmit as byte 7. 7 0 - 7 Byte 8 value The value to transmit as byte 8. 8-9 0 - 15 CRC 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 : 0x0005 (5 minute intervals) • Payload Byte 0: 0xAA • Payload Byte 7: 0xBB • Payload Byte 8: 0xCC
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 23 Initiate proprietary track response Byte Bits Parameter Description 0 0 - 7 Leader Always a value of 0xAA. 1 0 - 7 Length 5 2 0 - 7 Command Code. 0x30 = ACK or 0xFF = NAK 3 -4 0 - 15 CRC Example Response: AA 05 30 5A F5 5.2.3.2 “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 Description 0 0 – 7 Leader Always a value of 0xAA. 1 0 – 7 Length 0x08 2 0 – 7 Command Code. 0x31 = Update proprietary track. 3 0 – 7 Byte 0 value The value to transmit as byte 0 4 0 – 7 Byte 7 value The value to transmit as byte 7. 5 0 – 7 Byte 8 value The value to transmit as byte 8. 6-7 0 – 15 CRC Leader Len Cmd Byte 0 Byte 7 Byte 8 CRC1 CRC2 AA 08 31 AA BB CC 18 59 Example Command: AA 08 31 BB CC DD AC 99
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 24 Where: • Payload Byte 0: 0xAA • Payload Byte 7: 0xBB • Payload Byte 8: 0xCC Update Proprietary Track Data response Byte Bits Parameter Description 0 0 - 7 Leader Always a value of 0xAA. 1 0 - 7 Length 5 2 0 - 7 Command Code. 0x31 = ACK or 0xFF = NAK 3 -4 0 - 15 CRC Example Response: AA 05 31 D3 E4 5.2.3.3 “Cancel Proprietary Track” command This command is used to terminate a proprietary track session. Cancel Proprietary Track command format Byte Bits Parameter Description 0 0 - 7 Leader Always a value of 0xAA. 1 0 - 7 Length 0x05 2 0 - 7 Command Code. 0x32 = cancel proprietary track. 3-4 0 - 15 CRC Leader Len Cmd CRC1 CRC2 AA 05 32 48 D6 Example Command: AA 05 32 48 D6
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 25 Cancel Proprietary Track response Byte Bits Parameter Description 0 0 - 7 Leader Always a value of 0xAA. 1 0 - 7 Length 5 2 0 - 7 Command Code. 0x32 = ACK or 0xFF = NAK 3 -4 0 - 15 CRC Example Response: 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 Description 0 0 - 7 Leader Always a value of 0xAA. 1 0 - 7 Length Variable 0x08 – 0x90 (144 bytes) 2 0 - 7 Command Code. 0x33 = Send Redundant Burst with GPS. 3 0 - 7 Byte 0 value The value to transmit as byte 0 of first packet 4 0 - 7 Byte 7 value The value to transmit as byte 7 of first packet 5 0 - 7 Byte 8 value The value to transmit as byte 8 of first packet 6 - n Additional data 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. n+1-n+2 0 - 15 CRC
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 26 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: 0xAA • Payload Byte 7: 0xBB • Payload Byte 8: 0xCC Example Command: AA 11 33 01 02 03 04 05 06 07 08 09 0A 0B 0C 57 C3 Where: • Payload Byte 0: 0x01 • Payload Byte 7: 0x02 • Payload Byte 8: 0x03 • Payload Byte 9: 0x04 • Payload Byte 10: 0x05 • Payload Byte 11: 0x06 • Payload Byte 12: 0x07 • Payload Byte 13: 0x08 • Payload Byte 14: 0x09 • Payload Byte 15: 0x0A • Payload Byte 16: 0x0B • Payload Byte 17: 0x0C Send Redundant Burst with GPS response Byte Bits Parameter Description 0 0 - 7 Leader Always a value of 0xAA. 1 0 - 7 Length 5 2 0 - 7 Command Code. 0x33 = ACK or 0xFF = NAK 3 -4 0 - 15 CRC Example Response: AA 05 33 C1 C7
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 27 5.2.4 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 Description 0 0 - 7 Leader Always a value of 0xAA. 1 0 - 7 Length 0x06 2 0 - 7 Command Code. 0xFC = Transmitter test. 3 0 - 7 Test mode 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. 4 – 5 0 - 15 CRC Leader Len Cmd Test Mode CRC1 CRC2 AA 06 FC 02 2E A2 Example Command: AA 06 FC 02 2E A2 Where: • Test Mode: 0x02 = Single Test Packet
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 28 Table 50: Transmitter test response format. Byte Bits Parameter Description 0 0 - 7 Leader Always a value of 0xAA. 1 0 - 7 Length 0x05 2 0 - 7 ACK or NAK 0xFC for success, 0xFF for incorrectly formatted command. A value for the test mode other than 0x01, 0x02, or 0x03 will generate a NAK. 3 - 4 0 - 15 CRC Example Response: AA 05 FC 3A F9
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 29 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: 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 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 30 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);
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 31 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 0 0 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 0 1 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 1 0 CW mode - An un-modulated carrier is continuously transmitted. 1 1 Normal Operation Table 6.1
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 32 The channels are selected via the Rx and RTS pins as follows RX RTS Channel 0 0 B 0 1 C 1 0 D 1 1 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
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 33 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.
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 34 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 NMB-003. 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.
Revision 0.2 STINGR Users Manual 06/24/15 Revision 0.2 Subject To Change without Notice P a g e | 35 FCC ID: L2V-STGR ICES-003/(A/B) IC:3989A-STGR R&TTE: TBR41 Complies with FCC standards. FOR HOME OR OFFICE USE

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