Author Topic: TI CC2541 no GATT communication  (Read 1898 times)

0 Members and 1 Guest are viewing this topic.

Offline victusTopic starter

  • Newbie
  • Posts: 6
  • Country: si
TI CC2541 no GATT communication
« on: August 25, 2016, 02:04:13 am »
I am working on a project with TI CC2541 MCU and I am having major issues with BLE communication with Android. I was wondering what Android app or Windows software can I use to read and write to GATT of CC2541 (I don't have CC dongle)? I have been trying with BLE SensorTag, Sensortag and BlueExplorer on Google Play. The first two seems to be capable of only reading it, while BlueExplorer outputs error each time I try to change any value.

Would it be possible that the cause is any hardware error?

Please kindly check the screenshots attached in zip archive here: dropboxusercontent.com/u/18516025/ble%20screeshots.zip
 

Offline batteksystem

  • Regular Contributor
  • *
  • Posts: 167
  • Country: hk
    • My ebay store
Re: TI CC2541 no GATT communication
« Reply #1 on: August 25, 2016, 03:37:42 am »
This total depends on what firmware of Z-stack you had loaded into the MCU. Each GATT has a unique message number assigned ( I remember it is something like 4 hex, for example FFFE) only matched number will have proper response. The number from the android side and the number in the firmware must be consistent for a proper communication. I think there are lots more information if you read the Z-stack documentations.

Offline victusTopic starter

  • Newbie
  • Posts: 6
  • Country: si
Re: TI CC2541 no GATT communication
« Reply #2 on: August 28, 2016, 09:43:44 pm »
But I am using Bluetooth, not Z-Stack...
 

Offline victusTopic starter

  • Newbie
  • Posts: 6
  • Country: si
Re: TI CC2541 no GATT communication
« Reply #3 on: August 30, 2016, 09:33:32 am »
No one?
 

Offline batteksystem

  • Regular Contributor
  • *
  • Posts: 167
  • Country: hk
    • My ebay store
Re: TI CC2541 no GATT communication
« Reply #4 on: August 30, 2016, 11:00:58 am »
But I am using Bluetooth, not Z-Stack...

It is called BLE-Stack, the look and feel is exactly the same, except the protocol of course.


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf