User Manual

SARA-R4 series-AT commands manual
UBX-17003787 - R16

21FTP
Page 259 of 401
Parameter Type Description
sending the +++ sequence to switch off the direct link mode. This operation may
take a few seconds because the command also handles the final steps of the FTP
protocol.
• 8: changes the working directory to the specified one.
• 9: RFU.
• 10: creates a directory on the FTP host.
• 11: removes the directory from the remote FTP server.
• 12: RFU.
• 13: information of a file or a directory. The URC +UUFTPCD returns the information
of the specified file or directory from the FTP server.
• 14: lists the file names in a specified directory. The URC +UUFTPCD returns the list
of the file names received from FTP server. If the directory name is omitted, the list
of the files names of current working directory is requested.
• 100: retrieves the FOTA update file. The downloaded file will not be accessible to the
user. The +UUFTPCR URC will display the MD5 checksum of the downloaded file.
<file_name> String File name to be deleted/renamed from the FTP host. For the limit of the length of the
string, see Command line.
<new_file_name> String New file name. For the limit of the length of the string, see Command line.
<remote_file_name> String Remote file name to be retrieved from the FTP host or stored in it. The maximum
parameter length is 256 characters.
<local_file_name> String Local file name (module file system) text string to be stored/sent on the file system.
For the limit of the length of the string, see the File system limits.
<retrieving_mode> Number Allowed values:
• 0 (default value): the file is retrieved from beginning.
• 1: restart the data retrieving from the last data received during the previous
download interrupted due to error.
<number_of_byte> Number Represents the number of bytes already sent to the FTP server or received from it.
• During a file retrieval the server writes the file from the offset indicated with this
parameter.
• During a file storing the server sends the data from the value indicated with this
parameter.
<directory_name> String Directory name on the FTP server. For the limit of the length of the string, see
Command line.
<file_directory_
name>
String Path file/directory name to be listed. If not specified, the current directory list is
requested. For the limit of the length of the string, see Command line.
• <param1> optional parameter; the text string of the path (file or directory) to be
name listed. If not specified, the list of the files names of current working directory
is requested.
<fw_download_
status>
Number Manages the firmware package download status:
• if omitted trigger the firmware package download from an FTP server
• 0: cancel the firmware package download from an FTP server
• 1: resume the firmware package download from an FTP server
<ftp_data_len> Number Amount of data in bytes
<ftp_data> String Data available from the FTP server in the ASCII [0x00,0xFF] range. The starting
quotation mark shall not be taken into account like data, the first byte of data starts
after the first quotation mark. The total number of bytes is <ftp_data_len>. At the
end of the byte stream, another quotation mark is provided for user convenience and
visualization purposes.
<ftp_result> Number Allowed values:
• 0: fail
• 1: success
<md5_sum> String MD5 checksum of the FOTA update file downloaded via +UFTPC=100 AT command.
This parameter is issued only for +UFTPC=100 AT command.
<param1> String Content depend on related <op_code> (details are given above)
<param2> String Content depend on related <op_code> (details are given above)
<param3> String Content depend on related <op_code> (details are given above)
<stored_byte> Number Amount of stored bytes
<total_byte> Number Amount of total bytes of the FOTA update file to be stored