GPS-RECEIVER JP7-T
VERSION 1.02
11.3 Firmware Interface
The table below shows supported SiRF firmware versions into the JP7-T
family devices.
Supported SiRF internal firmware version
GPS
Receiver
2.20
2.32
SiRFXTrac2
SiRFDrive
JP7-T
X
X
X
JP7-TB
X
X
X
X
JP7-TC-1
X
X
X
X
JP7-TC-2
X
X
X
X
11.4 XTrac firmware description
The JP7-T family using SiRFXTrac2 software offers high position accuracy
and fast Time-To-First-Fix (TTFF) than is currently possible with other
autonomous GPS solution. This means that the JP7-T family will continue
to determinate its positions or obtain an initial fix in places where previously
not possible. When the GPS receiver loaded with SiRFXTrac2 is initially
turned on, it begins to determinate its current positions, velocity and time
which will be calculated from tracking the GPS signals an extremely small
level by 16 dBHz. While trying to calculate a position fix, the receiver needs
to be locked-on to at least four satellites. Your position can be extremely
quick fixed within 4 seconds instead of within 8 seconds using other GPS
software from a "hot-start" state, and within 45 seconds from a "cold-start"
state.
As a general note, the SiRFdemo v3.61 supports the additional functionality
and configuration of SiRFXTrac2.
This software is now available on the Falcom’s Website for free download:
Î
www.falcom.de/service/downloads/manual/SiRF/SiRFdemo3.61.zip
11.4.1 SiRFXTrac2 firmware default settings
All GPS units which use the SiRFXTrac2 firmware version have the
following settings on serial interfaces:
SDI1/SDO1 (first serial port):
NMEA 38400 baud, Msg.: GLL, GGA, RMC,
VTG, GSV,
GSA
8 data bits, no parity, 1 stop bit
SDI2/SDO2(second serial port):
RTCM, 38400 baud
This confidential document is the property of FALCOM GmbH and may not be copied or circulated without permission.
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