4.6. What is the purpose of having VBackup (or backup power) connected?
By supplying VBackup with power, it can retain satellite information that has been already received after the module is powered off. This can help to speed up the acquisition time during the next start-up. In addition, user will be able to retain adjusted settings (through Mini GPS Tool or PMTK Command) as well.
Sub Navigation
- 4.1. Is there a design guide available?
- 4.2. Why does it take so long for my GPS module to obtain position fix?
- 4.3. Help! Why is the GPS reception sensitivity so low on my design?
- 4.4. Help! Why won't my module turn on?
- 4.5. What is the purpose of having damping resistors placed near UART terminals?
- 4.6. What is the purpose of having VBackup (or backup power) connected?
- 4.7. Does GlobalTop GPS module provides sub-meter accuracy GPS? How do I increase the accuracy?
- 4.8. For the integrated USB I/O port, which operating system is supported by GlobalTop?
- 4.9. What differentiate between Cold Start, Warm Start and Hot Start?
- 4.10. Is it possible to put the GPS module to sleep via software command?
- 4.11. Help! My GPS module died after powering on and off, what can I do?
- 4.12. What is the high and low voltage level for the GPIO ports (3D-Fix, 1PPS) in MT3329 GPS modules?
- 4.13. Why does the GPS module take so long to fix inside building? I thought it has -165dBm sensitivity?
- 4.14. I see that some model of GPS module has a SPI port, can I use this to receive NMEA?
Contact Us
GlobalTop Technology Inc.
No. 16, Nan-Ke 9th Road, Science-Based Industrial Park, Tainan 741, Taiwan
TEL: +886-6-5051268
FAX: +886-6-5053381
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