| Electronics > Beginners |
| Does the NEO-M8T store configuration settings in internal flash? |
| (1/1) |
| Illusionist:
I've read the datahseets and manuals until I'm crosseyed, and I still can't figure out decisively if I need an external memory on the NEO-M8T-0-00, or if it can save runtime settings/configuration to its internal flash. Or, if the flash is just for firmware updates. Most of the ready-made boards I see still have a memory chip, but not all. I only have one module to play with, and need to design the PCB for it, so I really need to know before I do. |
| wraper:
With flash it can do fast fix on satellites. Also it can do data logging. --- Quote ---1.6.2 AssistNowTM Offline With AssistNow Offline, users download u-blox’s long-term orbit data from the Internet at their convenience. The orbit data can be stored in the NEO-M8T and LEA-M8T GNSS receivers' SQI flash memory. Thus the service requires no connectivity at system start-up, enabling a position fix within seconds, even when no network is available. AssistNow Offline offers augmentation for up to 35 days. AssistNow Offline service provides data for GPS and GLONASS only, BeiDou and Galileo are not currently supported. 1.6.3 AssistNowTM Autonomous AssistNow Autonomous provides aiding information without the need for a host or external network connection. Based on previous broadcast satellite ephemeris data downloaded to and stored by the GNSS receiver, AssistNow Autonomous automatically generates accurate satellite orbital data (“AssistNow Autonomous data”) that is usable for future GNSS position fixes. The concept capitalizes on the periodic nature of GNSS satellites: their position in the sky is basically repeated every 24 hours. By capturing strategic ephemeris data at specific times over several days, the receiver can predict accurate satellite ephemeris for up to six days after initial reception. u-blox’s AssistNow Autonomous benefits are: Faster fix in situations where GNSS satellite signals are weak No connectivity required Compatible with AssistNow Online and Offline (can work stand-alone, or in tandem with these services) No integration effort; calculations are done in the background, transparent to the user. For more details see the u-blox 8 / u-blox M8 Receiver Description Including Protocol Specification [3] and MGA Services User Guide [6]. --- End quote --- |
| Illusionist:
--- Quote from: wraper on May 19, 2019, 10:02:15 pm ---With flash it can do fast fix on satellites. Also it can do data logging. --- End quote --- That answers that then, thank you. I've also just found a note in the evaluation kit guide about saving the config to the SQI flash. |
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