Ftp Time Out - SimCom SIM900B Application Note

SIM900 IP APPLICATION
Open the FTP put session
FTP session is ready for upload.
1280 is the max length of data
which can be sent at a time. It
depends on the network status.
Client requests to send 100 bytes.
Response will indicates that user
must input 100 bytes for transferring
now.
URC indicates that the FTP session
is ready to transfer more data.
No more data will be uploaded. the
FTP session will be closed.
Data transfer finished.
connection to the FTP server is
closed.

3.10 FTP TIME OUT

Demonstration
Open the FTP Get session
If the status of the network is poor,
may be time out.
The connection to the FTP server is
closed
Open the FTP Get session
Data are available
If costumer do
"AT+FTPGET:2, <reqlength>" to
read data, "+FTPGE T:1,1" will be
shown again in a certain time.
SIM900 IP APPLICATION
AT+ FTPPUT =1
AT+FTPPUT=2,100
AT+FTPPUT=2,0
The
Syntax
AT+ FTPGET =1
AT+ FTPGET =1
not use
OK
+FTPPUT:1,1,1280
+FTPPUT:2,100
......
data from uart , and DCD has
been set to low.
OK
received over, and DCD is set
to high.
+FTPPUT:1,1,1280
OK
+FTPPUT:1,0
Expect Result
OK
+FTPGET:1,64
OK
+FTPGET:1,1
+FTPGET:1,1
........
+FTPGET:1,1
33
//It is ready to receive
//All data has been