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Table Of Contents
SARA-R4 series-AT commands manual
UBX-17003787 - R16
17File System
Page 199 of 401
17.2.4Notes
• Issue the AT+ULSTFILE=1 command to retrieve the available user space in the file system.
• Two files with different types can have the same name, i.e. AT+UDWNFILE="testfile",20,"USER" and AT
+UDWNFILE="testfile",43,"AUDIO".
SARA-R4 / SARA-N4
• The <tag> parameter is mandatory for firmware package transfer. The tag must be given as "FOAT" for
FW download, and "PROFILE" for carrier profile. For more details, see FILE TAGS.
17.3List files information +ULSTFILE
+ULSTFILE
Modules All products
Syntax PIN required Settings saved Can be aborted Response time Error referenceAttributes
partial No No No - +CME Error
17.3.1Description
Retrieves some information about the FS. Depending on the specified <op_code>, it can print:
• List of files stored into the FS
• Remaining free FS space expressed in bytes
• Size of the specified file expressed in bytes
The available free space on FS in bytes reported by the command AT+ULSTFILE=1 is the theoretical free
space including the space occupied by the hidden and temporary files which are not displayed by the AT
+ULSTFILE=0.
17.3.2SARA-R4 syntax
Type Syntax Response Example
Generic syntax
Set AT+ULSTFILE=[<op_code>[,
<param1>[,<param2>]]]
+ULSTFILE: [<param3>,...[,
<paramN>]]
OK
List of files stored into the FS
Set AT+ULSTFILE=[0[,<tag>]] +ULSTFILE: [<filename1>[,
<filename2>[,...[,<filenameN>]]]]
OK
See notes below
AT+ULSTFILE=
+ULSTFILE: "filename1","filename2"
OK
See notes below
Remaining free FS space expressed in bytes
Set AT+ULSTFILE=1[,<tag>] +ULSTFILE: <free_fs_space>
OK
AT+ULSTFILE=1
+ULSTFILE: 236800
OK
Size of the specified file
Set AT+ULSTFILE=2,<filename>[,
<tag>]
+ULSTFILE: <file_size>
OK
AT+ULSTFILE=2,"filename"
+ULSTFILE: 784
OK
17.3.3Defined values
Parameter Type Description
<op_code> Number Allowed values are:
• 0 (default value): lists the files belonging to <tag> file type
• 1: gets the free space for the specific <tag> file type
• 2: gets the file size expressed in bytes, belonging to <tag> type (if specified)
<tag> String Specifies the application file type. FILE TAGS table lists the allowed <tag> strings.