At+Qfopen Open A File - Quectel BG96 At Command Manual

"<filename>"
<download_size> The size of the downloaded data. Unit: byte.
<checksum> The checksum of the downloaded data.
<err> An error code relating to ME or network. Please refer to Chapter 4 for details.
NOTES
"+++" sequence will cause TA to end the command and switch to command mode.
1.
2. <checksum> is a 16 bit checksum based on bitwise XOR.

2.6. AT+QFOPEN Open a File

The command can be used to open a file and get the file handle to be used in commands such as
AT+QFREAD, AT+QFWRITE, AT+QFSEEK, AT+QFPOSITION, AT+QFTUCAT and AT+QCLOSE.
AT+QFOPEN Open a File
Test Command
AT+QFOPEN=?
Read Command
AT+QFOPEN?
Write Command
AT+QFOPEN=<filename>[,<mode>]
Parameter
<filename> Name of the file to be opened. The maximum length is 80 bytes.
"<filename>"
<filehandle> The handle of the file. The data type is 4 bytes.
<mode> The open mode of the file.
0
BG96_FILE_AT_Commands_Manual
Name of the UFS file to be downloaded.
Response
+QFOPEN: <filename>[,(0-2)]
OK
Response
+QFOPEN: <filename>,<filehandle>,<mode>
[+QFOPEN: <filename>,<filehandle>,<mode>
[...]]
OK
Response
+QFOPEN: <filehandle>
OK
If there is any error:
+CME ERROR: <err>
Name of the UFS file to be opened.
If the file does not exist, it will be created. If the file exists, it will be directly
LTE Module Series
BG96 FILE AT Commands Manual
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