C
ONFIGURATION
C
OMMAND
S
ET
- F
IRMWARE
R
EVISION
2.4.0_
BETA
-
V
ERSION
1.0.0
•
Each time the system MAMBOII receives the GPS.History.Read command, it
responds with a maximum packet size of 512 bytes even if the size of the marked
records is larger than 512 bytes. It means as larger the size of the selected history
data, as more GPS.History.Read
commands have to be sent to the target device.
•
When the selected history records have been successfully downloaded, the
MAMBOII device responds a message “
readout completed
”.
Example:
To download a 16 Kbytes set of records equivalent to 16384 bytes, you have to
send 32-times (16384 byte: 512 bytes = 32 times) the
to the target MAMBOII device.
Parameter Description
<format>
It defines the format of the history (logged) records to be downloaded. It can be
defined to:
Value
Meaning
bin
Downloads history records in the binary format (default) It
is the same as you send only
GPS.History.Read
).
txt
Downloads history records in a special textual format. A
brief description of this format can be found in the next
sub-chapter.
rmc
A standard RMC protocol is generated for each history
entry.
Notes
•
Note, the maximum number of bytes that can be downloaded at once is
predefined to 512 bytes.
•
To download the history records, please consider that the start date/time and
end date/time are based on the UTC Time, otherwise you will download the
stored history records in the incorrect time.
•
No PFAL commands could be entered/executed after the time the
command has been sent until the download process is successfully done.
•
Advantage to this command
: As above, this command does not download
the all history records you have selected at once. It splits the size of the
selected records in 512 bytes per packet and sends a 512 bytes packet out
upon user request. Splitting history data to several packets allows the remote
server to execute arbitrary commands even if the history readout process has
been started. Reading history packets can continue whenever it is desired
(but before you shut down or reset the MAMBOII device).
3.2.4.2.5.1
How to read the history records in textual format
Each history entry is reported within a single line of the following format.
$<
history_entry_standard
><
history_entry_extension
><CRLF>
Format
Example
Description
$
$
Start of records
<
history_entry_standard
>
<
date>,<time>,<fix>,<minsats>,<lat>,<lon>,<alt>,<speed>
dd.mm.yyyy
13.10.2006
Date: dd day, mm month, yy year separated by dots.
hh:mm:ss
13:26.56
Time: hh hours, mm minutes, ss seconds separated by colons.
dd.mmmmmm
50.673325
Latitude, a double value in
decimal degrees
format.
dd.mmmmmm
10.980685
Longitude, a double value in
decimal degrees
format.
dd.m
600.9
Altitude, an approximate height value (
0
…
8000)
above sea level in
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