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1. New Features
No new features have been introduced in this release.
2. Software Release Description
2.1. Software Identification
Software Identification
Internet Library 5.54 / Internet Application 5.54
2.2. Compatibility
Open AT® OS
6.51.0.201206010944
Firmware
7.51.0.201205311751
Libraries & Internet Application are only delivered on RVDS EABI compiler
3. Known Restrictions
ID
Description (What / When)
Impacted Domain
Impacted Sub Domain
59405
CME ERROR: 837 is received when ‘AT+WIPDATA’ command is issued even without starting a GPRS bearer and creating a TCP/UDP socket. ‘CONNECT’ indication is received in earlier versions of Internet Application. Ideally, CME ERROR: 831 (BAD STATE) should be received in such case.
Internet Application
OTHER
60917
While trying to execute Internet Application commands using function adl_atCmdSendExt() from a command handler of customized command, subscribed in an embedded application, then sometimes response to Internet Application commands is not received.
Internet Library
59494
GPRS bearer is not started if wip_bearerStart() is called in the +CGREG unsolicited handler. However, this can be achieved by starting the bearer in +CREG callback instead.
56164
The Embedded module may reset when network connection is lost during GPRS bearer stop operation.
55094
Ethernet bearer cannot be reopened after restarting the IP Stack.
55021
It is not possible to start the Ethernet bearer with DHCP enabled. Also with DHCP disabled, the Ethernet bearer does not get unsubscribed on removing the Ethernet cable.
54010
When using wip_list API, WIP_CEV_PEER_CLOSE event is not received after the last data is received.
52919
When file containing only DLE ETX character sequence is sent from TCP client to the server then data loss occurs and "SHUTDOWN" indication is received.
52499
Incorrect error codes are received when invalid peer IP address is given while trying to establish TCP Server Client connection.
4. Interface Modifications
This section lists the interfaces modifications introduced in Internet Application 5.54. No interface modifications have been in introduced in Internet Library 5.54.
API
Comment
ATI9
Information for application i.e. Application name, version, and Company Name are now filled in response of ATI9 command.
AT+WIPCFG=3
Response for AT+WIPCFG=3 command has been slightly changed to remove Internet Library and Internet Application version information.
5. Corrections & Improvements
Fixed in
55455
+CME ERROR: 800 is received instead of +CME ERROR: 851 when Server Address, Username and Password parameters are missing in the internet application command AT+WIPCREATE=4,1 to create the FTP server.
5.54
59087
When trying to set the data representation type at UART2 using Internet Application command AT+WIPOPT=4,1,2,40,x, after the FTP connection is made the expected OK response is not received.
59200
Unable to open server socket again, after closing the server socket and client socket (in this order).
61424
Embedded module cannot switch from DATA mode to AT mode if [ETX] character is encountered after HTTP POST method.
62074
When API wip_close() is called after successful HTTP GET/POST, HTTP GET/POST fails on next attempt.
62628
Embedded module goes into DATA mode even when issuing the AT+WIPDATA command with unused (inactive) socket. Escape sequence "+++" needs to be given to come out of DATA mode.
60910
Embedded module resets when GPRS bearer is opened and closed repeatedly in a loop using APIs wip_bearerOpen() and wip_bearerClose().
62752
When API wip_getFileOpts() is used with HTTP POST method and with header "Connection" with value "Keep-Alive" and header "Expect", "100-continue", then there can be multiple responses received from Server for a single request. And when API wip_getOpts() is called to get the values of WIP_COPT_HTTP_STATUS_CODE and WIP_COPT_HTTP_STATUS_REASON for each response, the values of first response are returned for all the further responses till the next request.