CC2650STK: Attribute Handle is fix or variable value?

kyt

Part Number: CC2650STK
Other Parts Discussed in Thread: CC2541, CC2650

Now I use CC2650STK with Linux PC and bluez application.

In case of one sensortag, it is avairable to connect CC2650STK through hcitool.

But there is difference one sensortag from below Attribute table.
-SensorTagattributetable
processors.wiki.ti.com/.../BLE_SensorTag_GATT_Server.pdf

our condition:
-Temp 0x24
-Temp enabke 0x27
-Humidity 0x2C
-Humidity enable 0x2F
-Buzzer ON 0x35

Is it correct operation?

It is my first time to occur this situation.

best regards,

kyt

over 9 years ago

0 Christin Lee over 9 years ago

TI__Guru 56475 points

Hi,

Can you elaborate your question? Do you mean that the attribute table you are seeing is different from what you found on the website?

0 kyt over 9 years ago in reply to Christin Lee

Expert 2355 points

Yes, exactly.

best regards,
kyt

0 Christin Lee over 9 years ago in reply to kyt

TI__Guru 56475 points

Hi,

The attribute table you attached is for CC2541 sensortag. For CC2650 sensortag attribute table, you need to check here :
www.ti.com/.../tearDown.html

0 kyt over 9 years ago in reply to Christin Lee

Expert 2355 points

Hi, Thank you for your advice.

I misunderstood GATT table.
Now I try to get sensor data behaved with correct GATT table.
but it can not get data.
hcitool and gatttool is ok, but in the scrit, it fails.

So, is it recommend to use the UUID without the attribute handle?

In the SIG document(Core Specification) , it describes that attribute handle may not same value because of assighned when CC2650STK is boot.

best regards,

kyt

0 Christin Lee over 9 years ago in reply to kyt

TI__Guru 56475 points

What's the script you are using?

We have simplelink academy covering how the attribute table works, you can find more information here : software-dl.ti.com/.../ble_01_custom_profile.html

Here is what I extracted from the page :
Handle
In the TI BLE Stack the handles are assigned starting from 1 when the attribute is registered with the GATT Server. If the firmware doesn't change, the handle is always the same.

0 kyt over 9 years ago in reply to Christin Lee

Expert 2355 points

Hi,

Thanks, I will check again.

regards,

kyt

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CC2650STK: Attribute Handle is fix or variable value?