[JN-SW-4170] Which API is for "Read Attributes" Response?

[alan5_lin]

Dear Sirs,

According to Chapter 2.2.1.1 of JN-UG-3103 ("Reading a Set of Attributes of a Remote Cluster"), the Destination Node will send "Read Attributes" response to the Source Node.

Where can I find the .c file which handling the response action?

Thanks!

[mario_castaneda]

Hi Alan,

I hope you are doing great.

Please look at the APP_ZCL_cbEndpointCallback in the app_zcl_event_handler.c file.

 case E_ZCL_CBET_READ_INDIVIDUAL_ATTRIBUTE_RESPONSE:‍

You will find how the attribute response is handled, and the function is reading out the attribute response.

            if((psEvent->eEventType == E_ZCL_CBET_READ_INDIVIDUAL_ATTRIBUTE_RESPONSE))
                vSL_WriteMessage ( E_SL_MSG_READ_ATTRIBUTE_RESPONSE,
                                   u16Length,
                                   au8LinkTxBuffer );‍‍‍‍

Regards,

Mario

[alan5_lin]

Dear Mario,

Thanks for your information. It seems behavior on Gateway Node.

How about on Device Node?

Where can I find the .c file which writing the attribute payload into response packet on Device Node?

Thanks!

[mario_castaneda]

Hi Alan,

It is the same, look at the APP_ZCL_cbEndpointCallback function. For example the JN-AN-1219 app_zcl_switch_task.c  file.

        case E_ZCL_CBET_READ_INDIVIDUAL_ATTRIBUTE_RESPONSE:
            DBG_vPrintf(TRACE_SWITCH_TASK, " Read Attrib Rsp %d %02x\n", psEvent->uMessage.sIndividualAttributeResponse.eAttributeStatus,
                *((uint8*)psEvent->uMessage.sIndividualAttributeResponse.pvAttributeData));
            break;‍‍‍‍

Regards,

Mario

[alan5_lin]

Hi Mario,

I run ZGWUI tool to read attribute of a device node based on JN-AN-1218. Captured picture as below:

I am interesting in the packet data marked with red block.

Which .c file build up this response packet on Device Node?

How to interpret this packet byte-by-byte?

Thanks!

[mario_castaneda · Accepted solution]

Hi Alan,

Please look at the Application Note: JN-AN-1216 Document A.2. Message Characteristics.

The PDF explains how is the packet is formed, so you could look at the B.1. Common Commandsthat described with the message description.

Regards,

Mario

[alan5_lin]

Hi Mario,

Thanks a lot.