CC2531: Not able to control ZR from ZC using write attributes command

Rudy Alfonso

Part Number: CC2531
Other Parts Discussed in Thread: Z-STACK

Hi all,

I was trying to send an ON/OFF data using write attribute command from ZigBee coordinator to a ZigBee router device.

It looks like the command was processed successfully. However, the write attribute response was telling that the attribute is read-only.

Also, I have noticed that I was not able to either switch-ON or switch-OFF the ZR from ZC.

Below is the command I sent from ZC.

0xfe 0x0f 0x26 0x03 0xZB_Addr_LSB 0xZB_Addr_MSB 0xCLUSTER_ID_ON_OFF_LSB 0xCLUSTER_ID_ON_OFF_MSB 0x26 0x01 0x0f 0x07 0x00 0x00 0x02 0x00 0x00 0x10 0xSTATUS 0xFCS
Where:
STATUS is either 0x01(ON) or 0x00(OFF)

Write attribute Log:

Write attribute response log:

I could not control the ON/OFF of ZB from ZC using write attribute because its read-only? If yes, how can I make the ZR not read-only? Or maybe the command I used is not correct?

Please advice.

Thank you.

Regards,

Rudy

over 2 years ago

0 YiKai Chen over 2 years ago

Guru 735455 points

Yes, On/Off attribute doesn't have write capability according to ZCL specification. You should send ZCLOn/Off/Toggle command to the device instead of writing On/Off attribute directly.

0 Ryan Brown1 over 2 years ago

TI__Guru**** 202256 points

Hi Rudy,

Please further review zclGeneral_SendOnOff_CmdToggle functionality from SampleSwitch examples using the CoordinatorEB configuration inside your Z-Stack version.

Regards,
Ryan

0 Rudy Alfonso over 2 years ago in reply to Ryan Brown1

Prodigy 40 points

Hello YIKai and Ryan,

Thanks for your response.

I would like to do it as per the diagram below.

The command will be sent by the host processor to ZC and then ZC to ZR.

And the response from ZB will be set to ZC and then read by the host processor. That's why I was looking for a command to use.

If possible, I don't want to modify the firmware of the ZC. Is that possible?

Thank you.

Regards,

Rudy

0 YiKai Chen over 2 years ago in reply to Rudy Alfonso

Guru 735455 points

By using MT command, you don’t need to modify ZNP which acts as ZC. You only need to send ZCL on/off command to your ZR in correct command format and it should work. To get on/off status, you can use ZCL read attribute command to do it.

0 Rudy Alfonso over 2 years ago in reply to YiKai Chen

Prodigy 40 points

Hi Yikai,

Thanks for your response.

Can you please give me an example of this MT command or maybe a document link for reference?

Thank you.

Regards,

Rudy

0 YiKai Chen over 2 years ago in reply to Rudy Alfonso

Guru 735455 points

I suggest you to use Ztool to test using MT command to send ZCL on/off/toggle command. By referring to the following screenshot, you have to fill in correct DstAddr, DestEndpoint, and SrcAddr according to your test setup. For cluster ID, lend, and data, please fill them as they are in the screenshot. For data 1 0 9, the latest byte stands for on/off/toggle command, 0 is off, 1 is on, and 2 is toggle. You can change the byte to send on/off/toggle command.

0 Ryan Brown1 over 2 years ago in reply to Rudy Alfonso

TI__Guru**** 202256 points

Here is a link to the Monitor and Test API. As YK has explained in detail, you must format AF_DATA_REQUEST messages data packets in a manner which will be understood by the common ZCL Specification. Any incoming responses or reports can likewise be intercepted from AF_INCOMING_MSG.

Regards,
Ryan

0 Rudy Alfonso over 2 years ago in reply to Ryan Brown1

Prodigy 40 points

Thanks a lot YK and Ryan. It's working now as expected.

Regards,

Rudy

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CC2531: Not able to control ZR from ZC using write attributes command