M12 Oncore Users Guide Supplement - deetc - isel

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Motorola GPS Products M12 Oncore User’s Guide Supplement Revision 1.0 01/25/00 ALMANAC STATUS This command requests almanac status information corresponding to the currently used satellite almanac data stored in RAM. The GPS receiver continually captures a complete new almanac to internal RAM while tracking satellites. If an existing almanac is stored in RAM on power-up, satellite visibility information will be available immediately. If no almanac data is stored in RAM on power-up, the receiver will download a new almanac and then compute satellite visibility information. Almanac data is stored in memory only while main or battery back-up power is applied. 44
Input Command Response Message Motorola GPS Products M12 Oncore User’s Guide Supplement Revision 1.0 01/25/00 ALMANAC STATUS Motorola Binary Format • Request Almanac Status Command: @@BdmC m mode 0 = Output status once (polled) 1 = Output status when RAM almanac data changes (continuous) C checksum Message Length: 8 bytes • To above command: @@BdvwtassssrrrrrrrrC RAM Almanac Status v almanac valid flag 0 = no almanac in receiver 1 = valid almanac in receiver w almanac week number (raw) 0 .. 255 (ICD-GPS-200) t time of almanac (raw) 0 .. 147 (ICD-GPS-200) a number of available SVs 0 .. 32 ssss SVs in almanac 0 = SV not available 32 bit binary field, 1 = SV included each bit represents one SVID (msb = SVID 32; lsb = SVID 1) rrrrrrrr reserved C checksum Message Length: 23 bytes 45
Page 1 and 2: M12 User’s Guide Supplement
Page 3 and 4: General Characteristics Performance
Page 5 and 6: 3. Mechanical 3.1 Mechanical Drawin
Page 7 and 8: 5.2 Main power Motorola GPS Product
Page 9 and 10: 8. Performance 8.1 Accuracy Motorol
Page 11 and 12: 10. Serial I/O Messages 10.1 Soluti
Page 13 and 14: Motorola GPS Products M12 Oncore Us
Page 15 and 16: Input Command Response Message Moto
Page 17 and 18: Input Command SATELLITE IGNORE LIST
Page 25 and 26: Input Command POSITION-HOLD POSITIO
Page 43: Input Command Response Message Moto
Page 63 and 64: Input Command Response Message @ #
Page 83 and 84: Response Message (Continued) Motoro
Page 93 and 94: Output Command Motorola GPS Product
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Input Command Response Message Moto
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Input Command GPGLL (GEOGRAPHIC POS
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Satellite Mask Angle Function Contr
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Position-Hold Position Function Inp
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RTCM Port Mode Function Sets the ba
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Almanac Data Output Function Output
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Almanac Data Input Function Manuall
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ASCII Position Output Function The
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Position Control Function Sets the
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Oscillator Learning Function Reques
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Controller ID cid Run Command run M
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M12 Oncore Users Guide Supplement - deetc - isel

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