USGlobalsat EB-5662RE User Manual

Page 22

Advertising
background image

EB-5662RE
High Performance GPS Engine Board

- 22 -

UINT16

<ChannelCount> Number of channels to use. 1-12 UBYTE

<ResetCfg>

bit mask

0×01=Data Valid warm/hot starts=1

0×02=clear ephemeris warm start=1

0×04=clear memory. Cold start=1

UBYTE

Example: Start using known position and time.

$PSRF104,37.3875111,-121.97232,0,96000,237759,922,12,3*37

F). Development Data On/Off ID: 105 Switch Development Data Messages On/Off

Use this command to enable development debug information if you are having trouble getting

commands accepted. Invalid commands will generate debug information that should enable the

user to determine the source of the command rejection. Common reasons for input command

rejection are invalid checksum or parameter out of specified range. This setting is not preserved

across a module reset.

Format:

$PSRF105,<debug>*CKSUM<CR><LF>

<debug>

0=Off, 1=On

Example: Debug On

$PSRF105,1*3E

Example: Debug Off

$PSRF105,0*3F

G). Select Datum ID: 106 Selection of datum to be used for coordinate Transformations

GPS receivers perform initial position and velocity calculations using an earth-centered earth-fixed

(ECEF) coordinate system. Results may be converted to an earth model (geoid) defined by the

selected datum. The default datum is WGS 84 (World Geodetic System 1984) which provides a

worldwide common grid system that may be translated into local coordinate systems or map

datums. (Local map datums are a best fit to the local shape of the earth and not valid worldwide.)

Examples:

Datum select TOKYO_MEAN

$PSRF106,178*32

Name

Example

Unit

Description

Message ID

$PSRF106

PSRF106 protocol

header

Advertising