Globalsat ET-314 GPS Engine Board [15/22] Psrf101 2686700 4304200 3851624 96000 497260 921 12 3 1c

ET-314AC

High Performance GPS Engine Board

2010/4/1

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B). Navigation lnitialization ID：101 Parameters required for start

This command is used to cause a restart of the receiver, and to specify the type of restart.

Optionally, it may also initialize position (in X, Y, Z ECEF coordinates), clock drift, GPS Time Of

Week and GPS Week Number. This enables the receiver to search for the correct satellite signals

at the correct signal parameters. Correct initialization parameters enable the receiver to quickly

acquire signals.

For software that does not support initializing data (GSW3, GSWLT3, SiRFXTrac), attempting to

include initializing data may cause unpredictable results. Do not set the initialize-data bit in the

ResetCfg word.

Table B-2 contains the input values for the following example:

Start using known position and time.

$PSRF101,-2686700,-4304200,3851624,96000,497260,921,12,3*1C

Name Example Units Description

Message ID PSRF101 PSRF101 protocol header

ECEF X -2686700 Meters X coordinate position

ECEF Y -4304200 Meters Y coordinate position

ECEF Z 3851624 Meters Z coordinate position

clkDrift 96000 Hz

Clock offset of the receiver in Hz☆

TimeOfWeek 497260 Sec GPS Time Of Week

WeekNo 921

GPS Week Number

（ Week No and Time Of Week calculation from

UTC time）

ChannelCount 12

Number of channels to use.1-12. If your CPU

throughput is not high enough, you could decrease

needed throughput by reducing the number of active

channels

ResetCfg 3 See Table B-3 & B-4

Checksum *1C

<CR><LF> End of message termination

☆Use 0 for last saved value if available. If this is unavailable, a default value of 75000 for GSP1,

95000 for GSP 1/LX will be used.