SIMPLELINK-CC13X2-26X2-SDK: Reading attributes with SimpleLink 6.30.00.84 fails with SOFTWARE_FAILURE

Koen Kanters

Intellectual 925 points

Part Number: SIMPLELINK-CC13X2-26X2-SDK
Other Parts Discussed in Thread: SIMPLELINK-CC13XX-CC26XX-SDK

I'm trying to upgrade my router firmware from 6.20 to 6.30.00.84 however it seems attribute reading broke.

The problem can be reproduced very easily:

- Load in the zr_genericapp_CC26X2R1_LAUNCHXL_tirtos7_ticlang project from (SIMPLELINK-CC13XX-CC26XX-SDK_6_30_00_84)

- Build and flash the fw on a CC2652R1 launchpad

- Pair and read attribute zclVersion of cluster basic endpoint 8

- Router returns a SOFTWARE_FAILURE error in the read response (0xc1)

over 1 year ago

+1 Ryan Brown1 over 1 year ago

TI__Guru**** 207157 points

Hi Koen,

You can review the change made to zcl.c which affects the behavior you are describing.

//V6.30
    //Validate the attribute is found and the access control
    if ( ( attrFound == TRUE ) &&
         (  (attrRec.attr.accessControl & ACCESS_GLOBAL) ||
            (GET_BIT( &attrRec.attr.accessControl, ACCESS_CONTROL_MASK ) == pInMsg->hdr.fc.direction ) ) )
    {
      if ( zcl_AccessCtrlRead( attrRec.attr.accessControl ) )
      {
        if ( zcl_AccessCtrlAuthRead( attrRec.attr.accessControl ))
        {
          statusRec->status = zclAuthorizeRead( pInMsg->msg->endPoint,
                                                        &(pInMsg->msg->srcAddr), &attrRec );
        }
        else
        {
          statusRec->status = zclReadAttrDataUsingCB( pInMsg->msg->endPoint, attrRec.clusterID, attrRec.attr.attrId, attrRec.attr.dataPtr, &len );
        }

//V6.20
    //Validate the attribute is found and the access control
    if ( ( attrFound == TRUE ) &&
         (  (attrRec.attr.accessControl & ACCESS_GLOBAL) ||
            (GET_BIT( &attrRec.attr.accessControl, ACCESS_CONTROL_MASK ) == pInMsg->hdr.fc.direction ) ) )
    {
      if ( zcl_AccessCtrlRead( attrRec.attr.accessControl ) )
      {
        statusRec->status = zclAuthorizeRead( pInMsg->msg->endPoint,
                                              &(pInMsg->msg->srcAddr), &attrRec );

Other than the ZCL_STATUS_SOFTWARE_FAILURE status given (due to no pfnReadWriteCB registered and ACCESS_CONTROL_AUTH_READ not set), is the return packet the same as before? You could choose to revert the changes or change the return status of zclReadAttrDataUsingCB to ZCL_STATUS_SUCCESS instead to work around the observed behavior.

Regards,
Ryan

0 Koen Kanters over 1 year ago in reply to Ryan Brown1

Intellectual 925 points

Thanks, I was not aware of this change. I solved it by changing the attributes access control. e.g. ACCESS_CONTROL_READ to (ACCESS_CONTROL_READ | ACCESS_CONTROL_AUTH_READ).

A different question about this new release; I see that due to switching to TI-RTOS7 the HEAPMGR_SIZE option is gone. We discussed this previously in https://e2e.ti.com/support/wireless-connectivity/zigbee-thread-group/zigbee-and-thread/f/zigbee-thread-forum/1052120/cc2652r-mac-no-resources-0x1a-errors-complete-crash-with-simplelink-cc13xx-cc26xx-sdk_5-30-00-56/3897554#3897554

With the default syscfg -> TI RTOS -> BIOS -> Default heap settings -> Default memory heap type set to HeapCallback, is the heap dynamically allocated again? (like pre 5.20). I consulted https://software-dl.ti.com/simplelink/esd/simplelink_cc13xx_cc26xx_sdk/6.30.00.84/exports/docs/zigbee/html/memory/memory_management.html#dynamic-memory-allocation but cannot find a clear answer about "HeapCallback".

+1 Ryan Brown1 over 1 year ago in reply to Koen Kanters

TI__Guru**** 207157 points

You can review the Predefined Symbols in the Project Properties -> CCS Build -> Arm Compiler to find HEAPMGR_CONFIG=0x80
HEAPMGR_SIZE=0x00, osal_port.c indicates that rtos_heaposal.h would be referenced which sets AUTOHEAPSIZE if defined(HEAPMGR_SIZE) && (HEAPMGR_SIZE == 0). You can find more documentation about the TI-RTOS7 Kernel here.

Regards,
Ryan

0 Koen Kanters over 1 year ago in reply to Ryan Brown1

Intellectual 925 points

Thanks for your quick response!

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SIMPLELINK-CC13X2-26X2-SDK: Reading attributes with SimpleLink 6.30.00.84 fails with SOFTWARE_FAILURE