User Manual

LEA-6 - Data Sheet
GPS.G6-HW-09004-E2 Page 8 of 26
1.9 GLONASS
The Russian GLONASS satellite system is an alternative system to the US-based Global Positioning System (GPS).
LEA-6H modules are GLONASS ready and are capable of receiving and processing GLONASS signals via a
firmware upgrade. For more information about GLONASS and implementation see the u-blox GPS Compendium
[4] and the GLONASS & GPS HW Designs Application Note [5].
1.10 Protocols and interfaces
Protocol Type
NMEA Input/output, ASCII, 0183, 2.3 (compatible to 3.0)
UBX Input/output, binary, u-blox proprietary
RTCM Input, 2.3
Table 3: Available protocols
All listed protocols are available on UART, USB and DDC. For specification of the various protocols see the
u-blox 6 Receiver Description including Protocol Specification [2].
LEA-6 modules support a number of peripheral interfaces for serial communication. The embedded firmware
uses these interfaces according to their respective protocol specifications. For specific applications, the firmware
also supports the connection of external memories.
1.10.1 UART
LEA-6 modules include one configurable UART interface for serial communication (for information about
configuration see section 1.12).
1.10.2 USB
LEA-6 modules provide a USB version 2.0 FS (Full Speed, 12Mbit/s) interface as an alternative to the UART. The
pull-up resistor on USB_DP is integrated to signal a full-speed device to the host. The VDDUSB pin supplies the
USB interface.
u-blox provides a Microsoft
®
certified USB driver for Windows XP, Windows Vista and Windows 7 operating
systems.
Operating System Support level
Windows XP Certified
Windows Vista Certified
Windows 7 Certified
Table 4: Operating systems supported by USB driver