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UC864 UC864 UC864 UC864----E/G/WD/WDU E/G/WD/WDU E/G/WD/WDU E/G/WD/WDU AT Commands Reference Guide AT Commands Reference Guide AT Commands Reference Guide AT Commands Reference Guide
80304ST10041a Rev. 6 80304ST10041a Rev. 6 80304ST10041a Rev. 6 80304ST10041a Rev. 6 ---- 2010 2010 2010 2010----0 00 05 55 5----20 20 20 20
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3.2.1.
3.2.1. 3.2.1.
3.2.1. String Type Parameters
String Type Parameters String Type Parameters
String Type Parameters
A string, either enclosed between quotes or not, is considered to be a valid string type
parameter input. According to V25.ter space characters are ignored on the command
line and may be used freely for formatting purposes, unless they are embedded in
numeric or quoted string constants; therefore a string containing a space character has
to be enclosed between quotes to be considered a valid string type parameter (e.g. typing
AT
AT AT AT+COPS +COPS +COPS +COPS=1,0,”A1” =1,0,”A1” =1,0,”A1” =1,0,”A1” is the same as typing AT AT AT AT+COPS +COPS +COPS +COPS=1,0,A1 =1,0,A1 =1,0,A1 =1,0,A1; typing AT AT AT AT+COPS +COPS +COPS +COPS=1,0,”A =1,0,”A =1,0,”A =1,0,”A
BB”
BB” BB”
BB” is different from typing AT
AT AT
AT+COPS
+COPS +COPS
+COPS=1,0,A BB
=1,0,A BB =1,0,A BB
=1,0,A BB).
A small set of commands requires always writing the input string parameters within
quotes: this is explicitly reported in the specific descriptions.
3.2.2.
3.2.2. 3.2.2.
3.2.2. Command Lines
Command Lines Command Lines
Command Lines
A command line is made up of three elements: the prefix prefix prefix prefix, the body body body body and the termination termination termination termination
character
character character
character.
The command line prefix
command line prefix command line prefix
command line prefix consists of the characters “AT
AT AT
AT” or “at
at at
at”, or, to repeat the
execution of the previous command line, the characters “A/ A/ A/ A/” or “a/ a/ a/ a/”.
The termination character
termination character termination character
termination character may be selected by a user option (parameter S3), the default
being <CR> <CR> <CR> <CR>.
The basic structures of the command line are:
•
ATCMD1<CR>
ATCMD1<CR> ATCMD1<CR>
ATCMD1<CR> where AT
AT AT
AT is the command line prefix, CMD1
CMD1 CMD1
CMD1 is the body of a basic
basic basic
basic
command command command command (nb: the name of the command never begins with the character “+ ++ +”)
and <CR>
<CR> <CR>
<CR> is the command line terminator character
•
ATCMD2=10<CR>
ATCMD2=10<CR> ATCMD2=10<CR>
ATCMD2=10<CR> where 10 is a subparameter
•
AT+CMD1;+CMD2=, ,10<CR>
AT+CMD1;+CMD2=, ,10<CR> AT+CMD1;+CMD2=, ,10<CR>
AT+CMD1;+CMD2=, ,10<CR> These are two examples of extended commands
extended commands extended commands
extended commands
(nb: the name of the command always begins with the character “+ ++ +”
2
). They are
delimited with semicolon. In the second command the subparameter is omitted.
•
+CMD1?<CR>
+CMD1?<CR> +CMD1?<CR>
+CMD1?<CR> This is a Read command for checking current subparameter
values
•
+CMD1=?<CR> +CMD1=?<CR> +CMD1=?<CR> +CMD1=?<CR> This is a test command for checking possible subparameter
values
These commands might be performed in a single command line as shown below:
2
The set of proprietary AT commands proprietary AT commands proprietary AT commands proprietary AT commands differentiates from the standard one because the name of
each of them begins with either “@
@ @
@”, “#
# #
#”, “$
$ $
$” or “*”. Proprietary AT commands
Proprietary AT commands Proprietary AT commands
Proprietary AT commands follow the same
syntax rules as extended commands extended commands extended commands extended commands