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nandyeezforu
nandyeezforu
Associate II
October 27, 2015
Question

Error : Data Mode not available ?

  • October 27, 2015
  • 2 replies
  • 741 views
Posted on October 27, 2015 at 16:15

Hi,

I am using SPWF01SC.11

I used the command AT+S.SOCKD=8825 on the hyper terminal and received OK

so the module is in data mode.

Now I want the module to go back to  command mode, so I typed AT+S. also tried with escape but i got an ERROR: Data Mode not available

How I can get back to data mode ?

Second Method:

SocketServer is: 172.32.144.1

+WIND:61:Incoming Socket Client:172.32.144.2

(now the client is connected with the server and working fine )

+WIND:60:Now in Data Mode

(I disconnected the client and it went back to Command mode)

+WIND:59:Back to Command Mode (If I want it to go back to Data Mode ?)

+WIND:62:Socket Client Gone:172.32.144.2

AT+S.

ERROR: Data mode not available

(Even after disconnect I am keep on getting the below message why it so ?)

+WIND:29:DHCP reply for 172.32.144.2/T9:D0:FR:59:U5:RR

+WIND:29:DHCP reply for 172.32.144.2/T9:D0:FR:59:U5:RR

+WIND:29:DHCP reply for 172.32.144.2/T9:D0:FR:59:U5:RR

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    2 replies

    Gerardo GALLUCCI
    Gerardo GALLUCCI
    ST Employee
    October 27, 2015
    Posted on October 27, 2015 at 16:55

    Hi John,

    >>> I used the command AT+S.SOCKD=8825 on the hyper terminal and received OK 

    so the module is in data mode.

    This is wrong. Module is into DataMode in WIND:60:Now in Data Mode. This happens (the first time) after incoming socket client (WIND:61).

    >>> How I can get back to data mode ?

    You can leave DataMode only when DataMode is available.

    If you provide an AT-command, and module gives you a reply, this is called ''Command Mode''.

    Once in DataMode, pass the escape sequence to module, and you'll get the ''WIND:59:Back to Command Mode''

    >>> If I want it to go back to Data Mode ?)

    When (TCP) socket client disconnects, socket server come back to Command Mode, and Data Mode is no more existent. You cannot switch to Data Mode, since there is no client to send bytes.

    >>> Even after disconnect I am keep on getting the below message why it so ?

    Because you're in miniAP mode, and socket server/client are not related to DHCP/DNS or other 802.11 messages.

    I suggest you to take a look at hands-on documents
    nandyeezforu
    nandyeezforuAuthor
    Associate II
    October 27, 2015
    Posted on October 27, 2015 at 17:14

    Hi Gerardo,

    Thanks a lot

    I am clear with this concept now

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