At+Qfread Read The File; At+Qfwrite Write The File - Quectel WCDMA UG FILE Series At Command Manual

2.7. AT+QFREAD Read the File

AT+QFREAD reads the data of the file related to the handle. The data starts from the current position of
the file pointer which belongs to the file handle.
AT+QFREAD Read the File
Test Command
AT+QFREAD=?
Write Command
AT+QFREAD=<file_handle>[,<length>
]
Parameter
<file_handle> The handle of the file to be operated
<length> The length of the file to be read out and the default is the file length
<read_length> The actual read length
<err> The error code from the module (see the Appendix A)

2.8. AT+QFWRITE Write the File

AT+QFWRITE writes the data to the file in storage. The data starts from the current position of the file
pointer which belongs to the file handle.
AT+QFWRITE Write the File
Test Command
AT+QFWRITE=?
Write Command
AT+QFWRITE=<file_handle>[,<length
>[,<timeout>]]
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WCDMA UGxx FILE AT Commands Manual
Response
+QFREAD: <file_handle>[,<length>]
OK
Response
CONNECT <read_length>
TA switches to data mode. When the total size of the data
reaches <length> (unit: byte), TA will return to command
mode, display the result and then reply the following codes:
OK
or
+CME ERROR: <err>
Response
+QFWRITE: <file_handle>[,<length>[,<timeout>]]
OK
Response
CONNECT
TA switches to data mode. When the total size of the written
data reaches <length> (unit: byte) or the time, TA will return to
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