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1. New Features
This section lists the features added from the previous Open AT® OS 6.35. Embedded Debugging: Enables developers to speed up embedded software fine-tuning by managing application execution through suspend/resume, step-by-step, standard and conditional breakpoints, and data watch capabilities in conjunction with Developer Studio.
Note 1: library/application has to be compiled in DEBUG mode to be able to use it. Library/application compiled in RELEASE mode can’t be debugged.
Note 2: JTAG debugging is still supported for backward compatibility on WMP series.
UART Pin Interrupt: In order to offer a new wake up mechanism from the Sleep mode, ADL now allows mapping of external interrupt on some UART signals (RXD pins of UART1 and UART2, and DTR of UART1). This feature is available in beta stage.
Power Down Management: Improved power down management for Open AT application by fine tuning which software area are not allowed to enter in Sleep mode. This feature is available in beta stage.
2. Software Release Description
2.1. Software Identification
Software Identification
6.36
2.2. Compatibility
Applications built with this Open AT® OS version
Firmware 7.4a or higher
3. Known Restrictions
ID
Description (What / When)
Impacted Domain
Impacted Sub Domain
55998
When an embedded application releases credit one by one by using the adl_fcmReleaseCredits() API, credits are not released and at a moment the transfer could be stop like the sender never received the resume indication sent by the FCM when credits were released.
DEVICE
FCM
56898
While using Open Uart Interface, Parity is always returned as UART_PARITY_NONE when user tries to get the current line coding settings even if parity is set to UART_PARITY_ODD or UART_PARITY_EVEN. When parity is set other than UART_PAR_NONE_CAP then it should return the correct value whenever user is extracting the line coding settings.
OTHER
60306
GPRS CID set-up using API adl_gprsSetupEx() will be successful even if the length of parameters such as APN, login or password goes above maximum limit.
GPRS
61378
After adl_powerdownSubscribe (power down service subscription), adl_powerdownForbidden doesn't forbid sleep mode and WCPU goes into sleep mode. Workaround: After adl_powerdownSubscribe, use adl_powerdownAllowed and then adl_powerdownForbidden.
61027
A reset occurs when an embedded application makes use of realloc() function to reallocate the memory block.
60390
The embedded module gets reset in case an embedded application using SMS service is running on it and an SMS is received with the storage memory selected for reading and receiving the SMS being different. After the reset is fixed the CMTI indication received on terminal always shows that message is stored in SIM memory even if some other memory e.g. “ME” is selected for storage.
59135
The embedded module gets reset in case an embedded application using SMS service is running on it and an SMS is received with the storage memory selected for reading and receiving the SMS being different.
57629
When API adl_osaSendResponse() returns ADL_RET_ERR_PARAM, many times on successive calls to the API adl_osaSendResponse() ADL_RET_ERR_BAD_STATE is returned even when all the parameters are correct. ATR or APDU responses could not be post back to the Firmware successfully after this. OK response should be received when API adl_osaSendResponse() is called with correct parameters.
57032
If a command with type ADL_CMD_TYPE_PARA is subscribed by using the adl_atCmdSubscribe() API, the handler provided is also called while issuing the test command i.e. "AT+<xxxx>=?". Command handler should be called after confirming that '?' is not given after '='.
56598
On issuing a pre subscribed command from an Embedded application, through the 'adl_atCmdSendExt()' API, an OK and ERROR is received alternatively, i.e. the command is sent to the command handler and the firmware alternatively. Ideally, the command should always be sent to the command handler and OK should be received.
53324
When Using %I64 format specifier for displaying u64/s64 variable through API adl_atSendresponse() in TARGET mode it always prints only "%I64d" instead of the value of the variable. Workaround: use %lld instead of %I64.
60298
An incorrect value is received whenever we use the API adl_simSubscribe() for subscribing a SIM and give wrong pin code and check the number of attempts left for entering PIN in command handler.
SIM
4. Interface Modifications
This section lists the interfaces that have been modified from Open AT® OS 6.35
API
Comment
adl_pwrdwnSubscribe
This function allows the application to get control over the Power Down service.
adl_pwrdwnUnsubscribe
This function allows the application to unsubscribe from the Power Down service.
adl_pwrdwnAllowed
This function allows the application to allow the 32Khz mode Open AT service.
adl_pwrdwnForbidden
This function allows the application to forbid the 32Khz mode Open AT service.
adl_atCmdCreate
When using this function to change the UART settings by giving AT+IPR or AT+ICF command, the response will not be received on terminal even if the parameter rspflag is set as TRUE.
adl_fcmSubscribe
When this function is used for USB port then PORT services must be subscribed. When the USB cable is unplugged, the FCM service automatically gets unsubscribed and correspondingly the FCM control event handler is notified by the ADL_FCM_EVENT_FLOW_CLOSED event.
5. Corrections & Improvements
Fixed in
55785
When DTR signal control is enabled by AT&D2, OK response is not received for call disconnection when the call is dropped using DTR signal. This incorrect behavior is seen when any embedded application is running in the background.
AT
60293
When AT+IPR and AT+ICF commands are issued through an Embedded Application using the adl_atCmdCreate API and if the rspflag parameter is set as FALSE, the settings are not reflected on physical UART. UART settings to be set are reflected only after any AT command is issued through an external application.
V24
54077
Memory leak is observed in ADL library when embedded application calls the API adl_atSendResponseSpe().
60449
OK response is not displayed on the external application when an embedded application with a call to Wip_netInit() is running and escape sequence (+++) is sent when a GPRS call is active.
58708
adl_portGetSignalState( ) returns incorrect values for RTS & DTR signal state.
6.35
59692
A new MACRO is available in ADL to declare stack size according to the compilers. Please see more details in the ADL User Guide (paragraph 3.1: Application Entry Points Interface)
59721
Unable to link some specific Open AT® applications with ARM EABI GCC due to the absence of some standard C library stubs in ADL library.
55552
ARM exception is received in case an embedded application tries to recompact the A&D area by adl_adRecompact() API. Issue is reproduced if adl_adRecompact() API is used for recompacting without subscription to any A&D cell.
FLASH
OBJECTS
6.32
56655
OK response is received when trying to write in flash memory even when there is not enough flash memory left to write. In case when not enough flash memory is left to write, ADL_FLH_RET_ERR_MEM_FULL response should be received instead of OK response, while trying to write in flash memory.
55954
When an audio stream is played on speaker for an infinite duration, then after some time, a reset is observed and the audio stream stops playing.
53097
The Remote_terminal sample application provides incorrect usage of API adl_fcmSendDataExt().
6.31
56110
When the user switches from AT mode to DATA mode using WIPSoft, sometimes CONNECT indication is received in between the data. If any application specifically checks for CONNECT after switching from OFFLINE to ONLINE, this will result in a failure. For the correction, a new ADL interface has been opened and called by WIPSoft 5.21
53480
Attempt to establish GPRS connection fails, after the execution of ATV0 command using FW R73 and WIP Plug-in 5.10.2050.
56151
With WIPSoft 5.21, on some network operators any attempt to establish a GPRS connection using AT command AT+WIPBR+4,6,0 fails.
45300
rand() returns systematically 0 when the application is compiled with ADS
51011
When adl_flhGetUsedSize() is called and if "StartID" and "EndID" parameters have the same value then the Open AT® task which called this API is blocked.
51198
Reaction of 1.8V only, MEs on SIM type recognition failure, or MEs on type recognition of 3V SIMs, immediately after the ATR only the two commands "SELECT GSM" and "STATUS/GET RESPONSE" shall be sent by the ME. The ME shall then deactivate the SIM/ME interface within 5 seconds and reject the SIM. However, ME sends a Select command instead of Status command and doesn’t deactivate the SIM.
51229
VCC voltage in 3V_5V mode is not managed correctly.
51233
SIM keeps switching on after OSA unsubscription as no power off request is sent to chipset to switch off SIM.
51441
As describe in ADL user guide "No TCU service API should be called from Low Level IRQ handler". It should be better that APIs return ADL_RET_ERROR_SERVICE_LOCKED error code.
52425
Memory leak in ADL library when application calls adl_atSendResponseSpe() function
53082
Whenever UART3 will be opened using UART_access application, port will not get opened and error message will be received.
54558
Reaction of 1.8V only, MEs on SIM type recognition failure, or MEs on type recognition of 3V SIMs, immediately after the ATR only the two commands "SELECT GSM" and "STATUS/GET RESPONSE" shall be send by the ME. The ME shall then deactivate the SIM/ME interface within 5 seconds and reject the SIM. However, ME sends a Select command instead of Status command and doesn’t deactivate the SIM.
50716
With the activation of OSA on sending APDUs, the Wireless CPU® resets with a backtrace. This is due to the SIM frame buffers not being reallocated.
52437
The Wireless CPU® reset is observed when UART Access sample application tries to Open UART2 when UART2 is not free or tries to Open UART2 in DCE mode. The application should not reset the Wireless CPU®, but instead should return ADL_RET_ERR_BAD_HDL error.
53190
The extintSubscribe () API returns -13 (i.e. ADL_RET_ERR_NOT_SUPPORTED) when the sensitivity level is set “ADL_EXTINT_SENSITIVITY_HIGH_LEVEL” or “ADL_EXTINT_SENSITIVITY_LOW_LEVEL”. Support for sensitivity level “ADL_EXTINT_SENSITIVITY_HIGH_LEVEL” or “ADL_EXTINT_SENSITIVITY_LOW_LEVEL” is not provided yet. Documentation tracker is to be raised to mention the same in the ADL User Guide.
53196
In Telemetry sample, before writing into flash, the flash handle is not subscribed (there is no usage of "adl_flhSubscribe()"), this causes problem while saving the parameter via custom command +IOSET and +TEL.
53423
The GPRS subscription fails on first usage of the ADL API adl_gprsSetupExt(). On using the API again (i.e. 2nd time) the GPRS subscription passes.
54718
If the result of adl_memGet() is not checked against NULL value, the Wireless CPU® resets when we try to write to the NULL pointer. The return value of function adl_memGet() needs to be checked against NULL in order to avoid the reset on Wireless CPU® before write operation.
55539
When USB UART is used, successful asynchronous write will return CH_STATUS_NORMAL instead of CH_STATUS_PENDING.
50010
In RTE mode, When application calls adl_regGetHWDataChunk() functions with ByteCount parameter set to null, then a WCPU reset occurs
6.30
51234
Wrong parameters during ATR command sending procedure in OSA sample. Workaround:Data must be a pointer instead of a variable
51510
In RTE mode , adl_bus_read() is not functional. adl_busRead() call resets Target (backtrace).
51730 51731
Wireless CPU resets when adl_bus_read() and adl_bus_write() API's are used in RTE mode.
52221
With the activation of OSA on entering the SIM PIN code, the WCPU resets with a backtrace.
52642
With the activation of OSA on removing the remote SIM before +WIND: 4 indication, the WCPU resets.
52692
When using adl_eventWait and setting a timeout of n seconds the timeout will effectively occurs after n*4 seconds
53054
When the application opens a device with Open Device services, for example an UART, and close it, there is a memory leak
53427
When the "UART_access" sample application tries to Open UART2, when it's not free or to open it in DCE mode then the WCPU resets. Application should exit gracefully and proper error handling should be implemented in the application.
53391
Using IDS services, an Open AT® application can subscribe to monitoring mechanism in order to make report to the IDS server with application data. In the subscription, a configuration is required. When the application init is made several times, the configuration is overwritten each time in flash. Any update from the IDS server on a parameter configuration is then lost and a desynchronisation appears between the device and the IDS server. When a configuration is already present in flash for the Open AT® application parameter, the FW should not overwrite the configuration in flash
Embedded RDMS
RDMS
51709
When sample application tries to Open UART2 when it's not free or to open it in DCE mode then a WCPU reset occurs. Application should return an error.
6.21
52364
Second FAX call cannot be handled due to there is no terminal response send from ATI to OAT. Due to this AT commands initiate by ADL are saved in the stack waiting for the answer of first ATA command. ATI should send a terminal response to OAT with a new flag, so that OAT can unblock the queue and the terminal response will not be displayed in the terminal.
52550
RI doesn't function for setting +WRIM=1,2,1000 (i.e. RING [bit:1]) and Open AT application is enabledANO525
52826
If application have set ASYNCHRONOUS mode for I2C or SPI bus, then there is a memory leak when application unsubscribe to the I2C or SPI bus.
53516
48936
Backtrace while FCM subscription, Outgoing data call and 30 tasks running.
53478 53454
The stack size in "adl_InitTasks_t" cannot be declared more than 64K
41865
Application is not able to subscribe to AT commands that are subscribed by ADL, ref : "Inner AT commands Configuration" paragraph in ADL Documentation.
6.20
50881
Flash operations take too long time
49697
Signal Generator example does not work. adl_tcuStart() or adl_tcuStop() API doesn't works in low IRQ handler, as described in ADL user guide
50907
Sample Sound Demo adaptation. There is a change in Audio service behaviour about the note definitions. Since Open AT® Software Suite v2.10 there is a change on frequency range according to note scale. For a same note scale, now frequency range is lower. So melody which has been defined in Open AT® application before Open AT® Software Suite v2.10 could be now too low in frequency, so it could not be heard.
51169
Unsubscribe the OSA is impossible when an APDU request is unanswered.
51544
RI signal is not pulsed for unsolicited response chosen with +WRIM AT command if an Open AT® application is running.
50000
When some ADL functions are called in Open UART callback functions, then a WCPU reset occurs. ADL_RET_ERR_SERVICE_LOCKED error code should be returned
49761
IDS Sample not functional with ADS or RVDS compilation.
6.11
50448
Timeout of Event is not functional.
47297
"ADL_SIM_EVENT_PIN_NO_ATTEMPT" is only received for pin code sent with adl_simSubscribe() or adl_simEnterPIN() but not with pin code sent from external.
6.10
41747
After OSA service subscription with adl_osaSubscribe() function, if the application tries to unsubscribe to the OSA service without posting back an ATR request to the Sierra Wireless firmware (after an ADL_OSA_EVENT_ATR_REQUEST or ADL_OSA_EVENT_ADPU_REQUEST event), then the unsubscription will fail, so the OSA service is never closed and it's not possible to subscribe again to it.
6.02
41829
Problem occurs when trying to activate a context with adl_gprsAct (), ADL_GPRS_EVENT_ACTIVATE_OK is not associated with the good cid number
41834
When up to 2000 A&D cells are created by an application (whatever are the cells' sizes), the adl_adGetCellList function will lead to a Wireless CPU® watchdog reset.
41836
ADL is not currently supporting the ATQ1 mode; this mode is mandatory to keep an ascendant compatibility with old external applications using only some basic AT commands.
41846
The adl_fcmUnsubscribe () API returns an incorrect value of FCM flow when called immediately after adl_fcmSubscribe() API.
41860
Even if ADL manages the ATQ command mode, there is no way for the application to internally control the current value of the quiet mode.
41863
When "ADL_TMR_TYPE_100MS” timer is subscribed, if "TimerValue"parameter is superior to "0x5E9182"value, the timer will not be set with the required value. Accordingly there is a limitation when "ADL_TMR_TYPE_100MS” timer is used.
41866
When an application subscribe to the SIM service with a correct PIN code (with adl_simSubscribe() function ), if it unsubscribes to this service and tries to subscribe it again a second time with an other SIM and PIN code , then "ADL_SIM_EVENT_PIN_ERROR” event will be raised. User cannot change the SIM card with another one which has a different PIN code.
41867
ADL SIM service is not informed that a PIN code is entered when the AT+CPIN command is sent with the adl_atCmdCreate() function. And then the other services depending on the SIM state do not work properly (SMS, CALL & GPRS services)
42575
This error happens when an unsubscribe request occurs exactly between 2 timer cycles. During this period, an unsubscribe request of the cyclic timer can be done but returns an error message. It’s because the timer is restarting. Increasing the TimerValue reduces strongly the probability of getting this error. To get an accurate time measure, the SCTU service must be used.
43589
If IRQ Low and High handlers are subscribed and DTMF detection is started with adl_audioStreamListen API, when an IRQ occurs the Wireless CPU® will reset
43775
Some special strings used in ADL can't be sent by SMS (OK, CONNECT, ERROR
44468
Open AT® application is now correctly informed of port opening.
44495
When adl_atCmdCreate API is used with ADL_PORT_NONE parameter, then AT command is sent to the Wireless CPU® on the ADL_PORT_OPEN_AT_VIRTUAL_BASE port
44783
The customer application will be informed of a call release event by toggling DTR.
45017
Starting from a too big DOTA volume size (e.g. AT+WOPEN=6,2624) adl_adRecompact starts correctly but does not generate any events.
45024
ADL badly handles the AT+WOPEN=6 mode when safe mode service is subscribed (size systematically set to 123)
45490
When a task has been interrupted by an ISR, adl_ctxGetState returns ADL_CTX_STATE_SUSPENDED instead of ADL_CTX_STATE_PREEMPTED.
46854
"+CMS ERROR: 539" will now be handled so that the reading of the current SMS is discarded (since invalid) and the SMS service is ready to process further incoming SMSs.
47156
when an application uses adl_smsSend() API to send a SMS, if the phone number parameter is a NULL string so the SMS is not sent but the SMS service enters in an invalid state. The application is not be able to send again another SMS.
41853 41854
The Signal Replica sample HTML documentation for AT+SIGNAL command is not coherent with the real command behavior.
41861
During an interrupt routine, it is impossible to use adl_extintConfig.
41868
When an application unsubscribe to a timer which have been already deleted, ADL can delete another timer handler subscribed. So this last timer handler is not notified when the timer expired.
45667
A reset occurs when a try is made to unsubscribe the bus during a read or write.
41859
The sample Sms_Automaton does not check if the starting tag and the ending tag are the same.