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AT Commands For File System

 

Command Description
AT+FSCD Select directory as current directory
AT+FSMKDIR Make new directory in current directory
AT+FSRMDIR Delete directory in current directory
AT+FSLS List directories/files in current directory
AT+FSDEL Delete file in current directory
AT+FSRENAME Rename file in current directory
AT+FSATTRI Request file attributes
AT+FSMEM Check the size of available memory
AT+FSLOCA Select storage place
AT+FSCOPY Copy an appointed file
AT+CFTRANRX Transfer a file to EFS
AT+CFTRANTX Transfer a file from EFS to host
 

 

 

 

AT+FSCD     Select Directory As Current Directory

 

This command is used to select a directory.

The Module supports absolute path and relative path.

Read Command will return current directory without double quotation marks.

Support “C:”, “D:”, “E:”, “F:”.

 

T) AT+FSCD=? OK
R) AT+FSCD?

+FSCD: <curr_path>

 

OK

W) AT+FSCD=<path>

+FSCD: <curr_path>

 

OK

or

ERROR

 

 

<path> String without double quotes, directory for selection.
<curr_path> String without double quotes, current directory.

 

NOTE

If <PATH> is “..”, it will go back to previous level of directory.

 

Example

AT+FSCD=C:

+FSCD: C:/

 

OK

AT+FSCD=C:/

+FSCD: C:/

 

OK

AT+FSCD?

+FSCD: C:/

 

OK

AT+FSCD=..

+FSCD: C:/

 

OK

AT+FSCD=D:

+FSCD: D:/

 

OK

AT+FSCD?

+FSCD: D:/

 

OK

 

 

 

 

AT+FSMKDIR      Make New Directory In Current Directory

 

This command is used to create a new directory in current directory.

Support “C:”, “D:”, “E:”, “F:”.

 

T) AT+FSMKDIR=? OK
W) AT+FSMKDIR=<dir>

OK

or

ERROR

 

 

<dir> String without double quotes, directory name which does not already exist in current directory.

 

 

Example

AT+FSMKDIR=SIMTech

OK

AT+FSCD?

+FSCD: E:/

OK

AT+FSLS

+FSLS: SUBDIRECTORIES

Audio

SIMTech

 

OK

 

 

 

 

AT+FSRMDIR      Delete Directory In Current Directory

 

This command is used to delete existing directory in current directory.

Support “C:”, “D:”, “E:”, “F:”.

 

T) AT+FSRMDIR=? OK
W) AT+FSRMDIR=<dir>

OK

or

ERROR

 

 

<dir> String without double quotes.

 

 

Example

AT+FSRMDIR=SIMTech

OK

AT+FSCD?

+FSCD: E:/

 

OK

AT+FSLS

+FSLS: SUBDIRECTORIES

Audio

 

OK

 

 

 

 

AT+FSLS     List Directories/Files In Current Directory

 

This command is used to list information of directories and/or files in current directory.

Support “C:”, “D:”, “E:”, “F:”.

 

T) AT+FSLS=?

+FSLS: (list of supported <type>)

 

OK

R) AT+FSLS?

+FSLS: SUBDIRECTORIES<dir_num>,FILES:<file_num>

 

OK

W) AT+ FSLS=<type>

[+FSLS: SUBDIRECTORIES:

<list of subdirectories>

<CR><LF>]

[+FSLS: FILES:

<list of files>

<CR><LF>]

OK

E) AT+ FSLS

[+FSLS: SUBDIRECTORIES:

<list of subdirectories>

<CR><LF>]

[+FSLS: FILES:

<list of files>

<CR><LF>]

OK

 

 

<dir_num> Integer type, the number of subdirectories in current directory.
<file_num> Integer type, the number of files in current directory.
<type>

0       –    list both subdirectories and files

1       –    list subdirectories only

2       –    list files only

 

 

Example

AT+FSLS?

+FSLS: SUBDIRECTORIES:2,FILES:2

 

OK

AT+FSLS

+FSLS: SUBDIRECTORIES:

FirstDir

SecondDir

 

+FSLS: FILES:

image_0.jpg

image_1.jpg

 

OK

AT+FSLS=2

+FSLS: FILES:

image_0.jpg

image_1.jpg

 

OK

 

 

 

 

AT+FSDEL      Delete File In Current Directory

 

This command is used to delete a file in current directory.

Before do that, it needs to use AT+FSCD select the father directory as current directory.

Support “C:”, “D:”, “E:”, “F:”.

 

T) AT+FSDEL=? OK
W) AT+FSDEL=<filename>

OK

or

ERROR

 

 

<filename>

String with or without double quotes, file name which is relative and already existing.

If <filename> is *.*, it means delete all files in current directory.

If the file path contains non-ASCII characters, the filename parameter should contain a prefix of {non-ascii} and the quotation mark.

 

 

Example

AT+FSDEL=image_0.jpg

OK

 

 

 

 

AT+FSRENAME     Rename File In Current Directory

 

This command is used to rename a file in current directory.

Support “C:”, “D:”, “E:”, “F:”.

 

T) AT+FSRENAME=? OK
W) AT+FSRENAME=<old_name>,<new_name>

OK

or

ERROR

 

 

<old_name>

String with or without double quotes, file name which is existed in current directory.

If the file path contains non-ASCII characters, the file path parameter should contain a prefix of {non-ascii} and the quotation mark.

<new_name>

New name of specified file, string with or without double quotes.

If the file path contains non-ASCII characters,

the file path parameter should contain a prefix of {non-ascii} and the quotation mark.

 

 

Example

AT+FSRENAME=image_0.jpg, image_1.jpg

OK

AT+FSRENAME=”mytest.jpg”,

{non-ascii}”E6B58BE8AF95E99984E4BBB62E6A7067″

OK

 

 

 

 

 AT+FSATTRI     Request File Attributes

 

This command is used to request the attributes of file which exists in current directory.

Support “C:”, “D:”, “E:”, “F:”.

 
T) AT+FSATTRI=? OK
W) AT+FSATTRI=<dir>

+FSATTRI: <file_size>,<create_date>

 

OK

or

ERROR

 

 

<filename>

String with or without double quotes, file name which is in current directory.

If the file path contains non-ASCII characters,

the file path parameter should contain a prefix of {non-ascii} and the quotation mark.

<file_size> The size of specified file, and the unit is in Byte.
<create_date>

Create date and time of specified file, the format is YYYY/MM/DD HH:MM:SS Week.

Week    –   Mon, Tue, Wed, Thu, Fri, Sat, Sun

 

 

Example

AT+FSATTRI=image_0.jpg

+FSATTRI: 8604, 2008/04/28 10:24:46 Tue

 

OK

AT+FSATTRI={non-ascii}”E6B58BE8AF95E99984E4BBB62E6A7067″

+FSATTRI: 6296, 2012/01/06 00:00:00 Sun

 

OK

 

 

 

 

AT+FSMEM      Check The Size Of Available Memory

 

This command is used to check the size of available memory.

The response will list total size and used size of local storage space if present and mounted.

Support “C:”, “D:”, “E:”, “F:”.

 

T) AT+FSMEM=? OK
W) AT+FSMEM

+FSMEM: <loctype>:(<total>, <used>)

OK

 

 

<loctype> Support “C:”, “D:”, “E:”, “F:”.
<total>

The total size of local storage space.

The unit of storage space size is in Byte.

<used>

The used size of local storage space.

The unit of storage space size is in Byte.

 

 

Example

AT+FSMEM

+FSMEM: C:(11348480, 2201600)

 

OK

 

 

 

 

AT+FSLOCA     Select Storage Place

 

This command is used to set the storage place for media files.

Support “C:”.

 

T) AT+FSLOCA=?

+FSLOCA: (list of supported <loca>s)

 

OK

R) AT+FSLOCA?

+FSLOCA: <loca>

 

OK

W) AT+FSLOCA=<loca>

OK

or

ERROR

 

 

<loca> 0    –    store media files to local storage space (namely “C:/”)

 

 

Example

AT+FSLOCA=0

OK

AT+FSLOCA?

+FSLOCA: 0

 

OK

 

 

 

 

AT+FSCOPY     Copy An Appointed File

 

This command is used to copy an appointed file on C:/ to an appointed directory on C:/, the new file name should give in parameter.

Support “C:”,”D:”, “E:”, “F:”, but copying from “C:” to “D:”, “E:”, “F:” or from “D:”, “E:”, “F:” to “C:” is not supported.

T) AT+FSCOPY=? OK
W) AT+FSCOPY=<file1>,<file2> [,<sync_mode>]

Sync mode

+FSCOPY: <percent><CR><LF>

[+FSCOPY: <percent><CR><LF>]

OK

 

Async mode

OK

+FSCOPY: <percent><CR><LF>

[+FSCOPY: <percent><CR><LF>]

+FSCOPY: END<CR><LF>

Or

When error, shows one of the following errors and ERROR

SD CARD NOT PLUGGED IN

FILE IS EXISTING

FILE NOT EXISTING

DIRECTORY IS EXISTED

DIRECTORY NOT EXISTED

FORBID CREATE DIRECTORY UNDER \”C:/\”

FORBID DELETE DIRECTORY

INVALID PATH NAME

INVALID FILE NAME

SD CARD HAVE NO ENOUGH MEMORY

EFS HAVE NO ENOUGH MEMORY

FILE CREATE ERROR

READ FILE ERROR

WRITE FILE ERROR

ERROR

 

 

<file1>

The sources file name or the whole path name with sources file name.

If the file path contains non-ASCII characters,

the file path parameter should contain a prefix of {non-ascii} and the quotation mark.

<file2>

The destination file name or the whole path name with destination file name.

If the file path contains non-ASCII characters,

the file path parameter should contain a prefix of {non-ascii} and the quotation mark.

<percent>

The percent of copy done.

The range is 0.0 to 100.0

<sync_mode>

The execution mode of the command:

0       –    synchronous mode

1       –    asynchronous mode

 

NOTE

1.The <file1> and <file2> should give the whole path and name, if only given file name, it will refer to current path (AT+FSCD) and check the file’s validity.

2.If <file2> is a whole path and name, make sure the directory exists, make sure that the file name does not exist or the file name is not the same name as the sub folder name, otherwise return error.

3.<percent> report refer to the copy file size.

The big file maybe report many times, and little file report less.

4.If <sync_mode> is 1, the command will return OK immediately, and report final result with +FSCOPY: END.

 

Example

AT+FSCD?

+FSCD: C:/

 

OK

AT+FSCOPY= C:/TESTFILE,COPYFILE   (Copy file TESTFILE on C:/ to C:/COPYFILE)

+FSCOPY: 1.0

 

+FSCOPY: 100.0

 

OK

AT+FSCOPY= “my test.jpg”, {non-ascii}”E6B58BE8AF95E99984E4BBB62E6A7067″

+FSCOPY:1.0

+FSCOPY:100.0

 

OK

 

 

 

 

AT+CFTRANRX     Transfer A File To EFS

 

This command is used to transfer a file to EFS.

Support SDcard.

 

T) AT+CFTRANRX=?

+CFTRANRX: [{non-ascii}]”FILEPATH”

 

OK

W) AT+CFTRANRX=”<filepath>”,<len>

>

OK

or

>

ERROR

or

ERROR

 

 

<filepath> The path of the file on EFS.
<len>

The length of the file data to send.

The range is from 0 to 2147483647.

 

NOTE

The <filepath> must be a full path with the directory path.

 

Example

AT+CFTRANRX=”c:/MyDir/t1.txt”,10

><input data here>

 

OK

AT+CFTRANRX=”d:/MyDir/t1.txt”,10

><input data here>

 

OK

 

 

 

 

AT+CFTRANTX     Transfer A File From EFS To Host

 

This command is used to transfer a file from EFS to host.

Before using this command, the AT+CATR must be used to set the correct port used.

Support SDcard.

 

T) AT+CFTRANTX=?

+CFTRANTX: [{non-ascii}]”FILEPATH”

 

OK

W) AT+CFTRANTX =”<filepath>”[,<location>

,<size>]

[+CFTRANTX: DATA,<len>

+CFTRANTX: DATA,<len>]

+CFTRANTX: 0

OK

or

ERROR

 

 

<filepath> The path of the file on EFS.
<len> The length of the following file data to output.
<location> The beginning of the file data to output.
<size> The length of the file data to output.

 

NOTE

The <filepath> must be a full path with the directory path.

 

 

Example

AT+CFTRANTX=”c:/MyDir/t1.txt”

OK

+CFTRANTX: DATA, 11

Testcontent

+CFTRANTX: 0

OK

AT+CFTRANTX=”d:/MyDir/t1.txt”,1,4

+CFTRANTX: DATA, 4

estc

+CFTRANTX: 0

OK

 

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