ZCL Write string to attribute

Hi YiKai

In my case, I want to use  "zcl_SendWrite" to write attribute of Server side, which is only ATTRID_BASIC_LOCATION_DESC attribute.

The code is based on DoorlockController & Doorlock sample proj.

Once I call change location function, Server side cannot catch any RF packet data.

below is my code :

static void DLCSApp_changeLocation(void)
{
	zclWriteCmd_t *writeCmd;
	afAddrType_t dstAddr;

  	writeCmd = (zclWriteCmd_t *)zcl_mem_alloc( sizeof( zclWriteCmd_t ) + ( 1 * sizeof( zclWriteRec_t ) ) );
	writeCmd->numAttr = 1;
	writeCmd->attrList[0].attrID = ATTRID_BASIC_LOCATION_DESC; // attr id
	writeCmd->attrList[0].dataType = ZCL_DATATYPE_CHAR_STR;	   // data type
	writeCmd->attrList[0].attrData = "Location"; //buffer

	dstAddr.addrMode = (afAddrMode_t)zdlcDstAddr.addrMode;
        dstAddr.addr.shortAddr = zdlcDstAddr.addr.shortAddr;
        dstAddr.endPoint = zdlcDstAddr.endpoint;
        dstAddr.panId = zdlcDstAddr.panID;
	
	zcl_SendWrite(DLCSAPP_EP, &dstAddr, ZCL_CLUSTER_ID_GEN_BASIC, writeCmd, ZCL_FRAME_CLIENT_SERVER_DIR, 0, 0);
}

Please suggest me what is the problem

Hi YiKai,

Thanks for your quick reply.

Below code is for ATTRID_BASIC_LOCATION_DESC attribute .

/*********************************************************************
 * ATTRIBUTE DEFINITIONS - Uses REAL cluster IDs
 */
CONST zclAttrRec_t zclSampleDoorLock_Attrs[SAMPLEDOORLOCK_MAX_ATTRIBUTES] =
{
             // ...........
  // *** General Basic Cluster Attributes ***
{
    ZCL_CLUSTER_ID_GEN_BASIC,
    { // Attribute record
      ATTRID_BASIC_LOCATION_DESC,
      ZCL_DATATYPE_CHAR_STR,
      (ACCESS_CONTROL_READ | ACCESS_CONTROL_WRITE),
      (void *)zclSampleDoorLock_LocationDescription
    }
  },
             // ..........
}

Thanks

Hi YiKai

I set breakpoint at server side which located at zclSampleDoorLock_ProcessFoundationMsg  as you told me.

But when I send write command from client side, server side cannot receive anything, exactly. Breakpoint also cannot be hit.

Please see attached picture which is captured at client side. when I click some button to trigger send write command writeCmd variable value show nothing.

what is the problem?

Actually, I don't have ubiqua tool.

can I use z-tool to capture sniffer packet?

If yes, I already use z-tool to check packet.

z-tool can show me the packet log during send door lock/unlock command from client.

but write attribute command cannot show anything with z-tool.

Hi YiKai,

I use TI Packet sniffer tool to capture OTA packet, when I trigger write attribute command from client, I cannot see such of packet.

I think the problem caused by write command, 

static void DLCSApp_changeLocation(void)
{
	zclWriteCmd_t *writeCmd;
	afAddrType_t dstAddr;

  	writeCmd = (zclWriteCmd_t *)zcl_mem_alloc( sizeof( zclWriteCmd_t ) + ( 1 * sizeof( zclWriteRec_t ) ) );
	writeCmd->numAttr = 1;
	writeCmd->attrList[0].attrID = ATTRID_BASIC_LOCATION_DESC; // attr id
	writeCmd->attrList[0].dataType = ZCL_DATATYPE_CHAR_STR;	   // data type
	writeCmd->attrList[0].attrData = "songrym"; //buffer

	writeRec111.attrID = ATTRID_BASIC_LOCATION_DESC;
	
	dstAddr.addrMode = (afAddrMode_t)zdlcDstAddr.addrMode;
    dstAddr.addr.shortAddr = zdlcDstAddr.addr.shortAddr;
    dstAddr.endPoint = zdlcDstAddr.endpoint;
    dstAddr.panId = zdlcDstAddr.panID;
	
	zcl_SendWrite(DLCSAPP_EP, &dstAddr, ZCL_CLUSTER_ID_GEN_BASIC, writeCmd, ZCL_FRAME_CLIENT_SERVER_DIR, 0, 0);
}

As I post debug image yesterday, before call zcl_SendWrite function, writeCmd variable value is abnormal. 

what is yr opinion?

Hi YiKai

In DLCSApp_changeLocation function call, I used zclWriteCmd_t *writeCmd to assign command data. (refer above src code)

finally assign the write command I call zcl_SendWrite function to write command over the air to server side.

With debugging mode, I checked writeCmd variable in Local tab, find that there is no value assign in it.

Hi YiKai

Please see below picture, what is captured by packet sniffer.

when I trigger send write attribute command, there is nothing special packet over the air.

==================================== send write attribute command =============================================

===================================== send change light level control command ======================================

If I send change light level command, sniffer packet shown as below picture.

Hi YiKai

Thanks for your suggest.

I checked zcl_SendWrite return value, it cannot return ZSuccess.

Means that write attribute fail at client side.

Please help me, what is problem

Hi YiKai

I didn't write code for sending write attribute command at SampleLight project.

Now my case is that write attribute command is send from SampleSwitch to SampleLight.

In Switch application when I send toggle command to Light, the short address and end point are set as 0x00.

If you want, I can attach whole switch project file to let you review my code.

Hi  Songrym Nam

       do  you have find out what is  the problem  of your code？

       if  not， maybe  you  could  have a  try of  below code ：

static void DLCSApp_changeLocation(void)
{
	zclWriteCmd_t *writeCmd;
	afAddrType_t dstAddr;
        uint8 Location_buf[] = { 8, 'L','o','c','a','t','i','o','n' };

  	writeCmd = (zclWriteCmd_t *)zcl_mem_alloc( sizeof( zclWriteCmd_t ) + ( 1 * sizeof( zclWriteRec_t ) ) );
	writeCmd->numAttr = 1;
	writeCmd->attrList[0].attrID = ATTRID_BASIC_LOCATION_DESC; // attr id
	writeCmd->attrList[0].dataType = ZCL_DATATYPE_CHAR_STR;	   // data type
	writeCmd->attrList[0].attrData = Location_buf; //buffer

	dstAddr.addrMode = (afAddrMode_t)zdlcDstAddr.addrMode;
        dstAddr.addr.shortAddr = zdlcDstAddr.addr.shortAddr;
        dstAddr.endPoint = zdlcDstAddr.endpoint;
        dstAddr.panId = zdlcDstAddr.panID;
	
	zcl_SendWrite(DLCSAPP_EP, &dstAddr, ZCL_CLUSTER_ID_GEN_BASIC, writeCmd, ZCL_FRAME_CLIENT_SERVER_DIR, 0, 0);
}

as  i  think it maybe the size of attrData is different with the one which get by zclGetAttrDataLength() function;

  eg:

       1.  zcl_SendWirte()  function will call  zcl_SendWriteRequest(),  

       2.  then zcl_SendWriteRequest()  will call zclGetAttrDataLength()  to get the dataLen 

uint16 zclGetAttrDataLength( uint8 dataType, uint8 *pData )
{
  uint16 dataLen = 0;

  if ( dataType == ZCL_DATATYPE_LONG_CHAR_STR || dataType == ZCL_DATATYPE_LONG_OCTET_STR )
  {
    dataLen = BUILD_UINT16( pData[0], pData[1] ) + 2; // long string length + 2 for length field
  }
  else if ( dataType == ZCL_DATATYPE_CHAR_STR || dataType == ZCL_DATATYPE_OCTET_STR )
  {
    dataLen = *pData + 1; // string length + 1 for length field
  }
  else
  {
    dataLen = zclGetDataTypeLength( dataType );
  }

  return ( dataLen );
}

           3.   writeCmd->attrList[0].attrData = "Location"; //buffer

        *pData  is 'L' 

BR!

Hi Yikai,

See below picture what is captured at time of send attribute cmd.

Seems that no relative packet send out by Switch side.

Hi, YiKai

Please refer attached psd file

Thankspacket.psd

Hi YiKai,

I am not so clear about your suggestion,

Is it means that set dstAddr.addr.shortAddr as coordinator short address?

If so, coordinator short address is default 0x00, how should I set ?

dstAddr.addrMode = (afAddrMode_t)zdlcDstAddr.addrMode;
dstAddr.addr.shortAddr = 0x00;   // it is already set as 0x00
dstAddr.endPoint = zdlcDstAddr.endpoint;
dstAddr.panId = zdlcDstAddr.panID;

Hi YiKai.

I change my code as shown below:

dstAddr1.addrMode = afAddr16Bit;
dstAddr1.addr.shortAddr = zswDstAddr.addr.shortAddr;
dstAddr1.endPoint = 0x08;
dstAddr1.panId = zswDstAddr.panID;

When I send command, I can captured some packet as attached. seems that something send out from switch side.

If it is relative command to light, at light side where should I set break point to check receiving message ?

location_cap.psd

Hi  Yikai

       does   below  code  not work？

static void DLCSApp_changeLocation(void)
{
	zclWriteCmd_t *writeCmd;
	afAddrType_t dstAddr;
        uint8 Location_buf[] = { 8, 'L','o','c','a','t','i','o','n' };

  	writeCmd = (zclWriteCmd_t *)zcl_mem_alloc( sizeof( zclWriteCmd_t ) + ( 1 * sizeof( zclWriteRec_t ) ) );
	writeCmd->numAttr = 1;
	writeCmd->attrList[0].attrID = ATTRID_BASIC_LOCATION_DESC; // attr id
	writeCmd->attrList[0].dataType = ZCL_DATATYPE_CHAR_STR;	   // data type
	writeCmd->attrList[0].attrData = Location_buf; //buffer

	dstAddr.addrMode = (afAddrMode_t)zdlcDstAddr.addrMode;
        dstAddr.addr.shortAddr = zdlcDstAddr.addr.shortAddr;
        dstAddr.endPoint = zdlcDstAddr.endpoint;
        dstAddr.panId = zdlcDstAddr.panID;
	
	zcl_SendWrite(DLCSAPP_EP, &dstAddr, ZCL_CLUSTER_ID_GEN_BASIC, writeCmd, ZCL_FRAME_CLIENT_SERVER_DIR, 0, 0);
}

Hi YiKai,

With your kindly suggestion, I can modify light side location desc as I wish.

One more question, 

I want to verify read attribute function. I already added code at switch side to read attribute of light side.

At light side, I set breakpoint at zclProcessInReadCmd (zcl.c), when switch trigger read attribute action I can receive read command from switch.

and in zclProcessInReadCmd function light finally will call zcl_SendReadRsp to send read resp command to switch side.

How should I check read rsp command at switch side ?

Hi, YiKai

At switch side, I am using cc2630EM, 

In switch.c file, I cannot find relative callback function to catch read resp command.

If you use CC2630EM, it is in zclParseInReadRspCmd.