Et-314 – USGlobalsat ET-314 User Manual

Page 16

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ET-314


The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology.

Page 16 of 19

Version 1.2

value if available. If this is unavailable, a default

value of 75000 for GSP1, 95000 for GSP 1/LX will be used.

INT32

<TimeOf Week> GPS Time Of Week

UINT32

<WeekNo> GPS Week Number

UINT16

( Week No and Time Of Week calculation from UTC time)

<chnlCount> 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

UBYTE

<ResetCfg> bit mask

0

×01=Data Valid warm/hotstarts=1

0

×02=clear ephemeris warm start=1

0

×04=clear memory. Cold start=1

UBYTE

Example: Start using known position and time.

$PSRF101,-2686700,-4304200,3851624,96000,497260,921,12,3*7F


C). Set DGPS Port ID:102 Set PORT B parameters for DGPS input

This command is used to control Serial Port B that is an input only serial port

used to receive

RTCM differential corrections.

Differential receivers may output corrections using different

communication parameters. The default

communication parameters for PORT B are 9600

Baud, 8data bits, 0 stop bits, and no parity. If a DGPS

receiver is used which has different communication parameters, use this command to allow

the receiver to correctly decode the data. When a valid message is received, the

parameters will be stored in battery backed SRAM and then the receiver will restart using

the saved parameters.

Format:

$PSRF102,<Baud>,<DataBits>,<StopBits>,<Parity>*CKSUM<CR><LF>

<baud> 1200,2400,4800,9600,19200,38400

<DataBits>

8

<StopBits>

0,1

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