User manual MODULESTEK MG-ST01SP

[. . . ] 7 3. 1 MG-ST01SP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BOARD CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . APPLICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] PIN P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 Voltage level/ active level LED NC TxD RxD NC NReset BBat DGND 3. 3V 1PPS Description LED status TTL Tx TTL Rx Low level force reset Backup battery supply(1. 95~3. 6V) Digital Ground 3. 3V power supply Time pulse signal www. modulestek. com 7 No. 208, Jhengkang 1st St. , Taoyuan City, Taoyuan County 330, Taiwan TEL:+886-3-3311143 FAX:+886-3-3316751 Key Modules For Your Success 5. TApplicationsT MG-ST01SP module board receiver is a high performance, ultra low power consumption, plug &play product. Car Navigation Wrist Watch Solar Operated Device Marine Navigation Fleet Management AVL and Location-Based Services Radar detector with GPS function Hand-Held Device for Personal Positioning and Navigation Ideal for PDA, Pocket PC and Other Computing Devices at GPS Application 6. Assisted GPS With Assisted GPS technology, GPS Data (ephemeris data) will be downloaded from an A-GPS Server through internet and transferred to the GPS Module via Wire or Wireless like Bluetooth. This will greatly reduce the TTFF since the positions of the satellites are known. The downloaded GPS data will expire in 7 days if the GPS is not being used. If GPS receiver is being used on daily basis, GPS data will also be downloaded from satellites. www. modulestek. com 8 No. 208, Jhengkang 1st St. , Taoyuan City, Taoyuan County 330, Taiwan TEL:+886-3-3311143 FAX:+886-3-3316751 Key Modules For Your Success 7. Schematics www. modulestek. com 9 No. 208, Jhengkang 1st St. , Taoyuan City, Taoyuan County 330, Taiwan TEL:+886-3-3311143 FAX:+886-3-3316751 Key Modules For Your Success Appendix A: GENERAL NMEA FORMAT The general NMEA format consists of an ASCII string commencing with a `$' character and terminating with a <CR><LF> sequence. NMEA standard messages commence with `GP' then a 3-letter message identifier. The message header is followed by a comma delimited list of fields optionally terminated with a checksum consisting of an asterisk `*' and a 2 digit hex value representing the checksum. When present, the checksum is calculated as a bitwise exclusive of the characters between the `$' and `*'. As an ASCII representation, the number of digits in each number will vary depending on the number and precision, hence the record length will vary. Certain fields may be omitted if they are not used, in which case the field position is reserved using commas to ensure correct interpretation of subsequent fields. The tables below indicate the maximum and minimum widths of the fields to allow for buffer size allocation. www. modulestek. com 10 No. 208, Jhengkang 1st St. , Taoyuan City, Taoyuan County 330, Taiwan TEL:+886-3-3311143 FAX:+886-3-3316751 Key Modules For Your Success $GPGGA This message transfers global positioning system fix data. The $GPGGA message structure is shown below: Field Message ID UTC Time Latitude N/S Indicator Longitude E/W indicator Position Fix Indictor Satellites Used HDOP MSL Altitude Units Geoid Separation Units Age of Differential Corrections Diff Reference Corrections Checksum Message terminator *xx <CR> <LF> (0) 3 2 3 2 2 digits. Int Float Float Char Int 2 1. 1 1. 1 1 (0) 1 2 3. 1 5. 1 1 4 Int 1 1 0: Fix not available or invalid. Format $GPGGA hhmmss. sss float char float Char Min chars 6 2, 2, 2. 3 3, 2. 4 1 3, 2. 4 1 6 2, 2, 2. 3 3, 2. 4 1 3, 2. 4 1 Max chars Notes GGA protocol header. E=east or W=west www. modulestek. com 11 No. 208, Jhengkang 1st St. , Taoyuan City, Taoyuan County 330, Taiwan TEL:+886-3-3311143 FAX:+886-3-3316751 Key Modules For Your Success $GPGLL This message transfers Geographic position, Latitude, Longitude, and time. The $GPGLL message structure is shown below: Field Message ID Latitude N/S Indicator Longitude E/W indicator UTC Time Status Format $GPGLL Float Char Float Character hhmmss. sss Char Min chars 6 1, 2. 1 1 1, 2. 1 1 1, 2, 2. 1 1 6 3, 2. 4 1 3, 2. 4 1 2, 2, 2. 3 1 Max chars Notes GLL protocol header. [. . . ] Satellite Id Elevation Azimuth SNR Int Int Int Int 2 1 1 (0) 1 2 3 3 2 Satellite vehicle 4. Checksum Message terminator *xx <CR> <LF> (0) 3 2 3 2 2 digits. ASCII 13, ASCII 10. www. modulestek. com 14 No. 208, Jhengkang 1st St. , Taoyuan City, Taoyuan County 330, Taiwan TEL:+886-3-3311143 FAX:+886-3-3316751 Key Modules For Your Success $GPRMC This message transfers recommended minimum specific GNSS data. [. . . ]