pairing automatically

Richin Abraham

Other Parts Discussed in Thread: CC2564

Hi,

I am using CC2564 bluetooth module and LM4F232 stellaris kit and i am trying to pair with an android phone. But every time when I reset the device I have to pair again.I want to pair once and after that I want the LM4F232 to automatically pair with the phone every time it switches on.

How to use HCI_Write_Stored_Link_Key and HCI_Read_Stored_Link_Key so that I dont have to pair every time.

If I have write to flash can anyone give me a code snippet for doing the same in LM4F232.

Another doubt is how to check if transmit is complete when using Write API. ( I tried to send 40 bytes data 50 times using Write but after 15 successful writes it sends the remaining 35Write API with 0 bytes). so I would like to check if previous write was successful before using write API again. Kindly tell which flag or register i need to check for achieving this?

-Richin Johns

over 11 years ago

0 Sundeep Javvaji over 11 years ago

TI__Mastermind 32615 points

Hi,

what is the stack you are using?

0 Richin Abraham over 11 years ago in reply to Sundeep Javvaji

Prodigy 190 points

I am using Bluetopia stack version 1.1 for TivaWare(compatible with StellarisWare).

Thank you

0 Sundeep Javvaji over 11 years ago in reply to Richin Abraham

TI__Mastermind 32615 points

Hi,

I hope the below post will help http://e2e.ti.com/support/wireless_connectivity/f/660/p/318520/1117795.aspx#1117795

Anyway moving it to SSO team for precise answer

0 Stonestreet One Support over 11 years ago

Mastermind 7225 points

Hi,

We recommend you do not use HCI_Write_Stored_Link_Key and HCI_Read_Stored_Link_Key as they offload the link key management to the radio and we recommend that the application should control the link key management as it may happen that the application and radio are not in sync and that may affect user experience. It is better for the radio to ask the application whenever link keys are needed.

This post, http://e2e.ti.com/support/wireless_connectivity/f/660/t/267220.aspx has sample code for storing and writing to flash.

If SPP_Data_Write returns a value less than what you are trying to write, that means the outgoing path is full and the application should wait to write until more buffers are available. The stack will indicate that more space is available using the etPort_Buffer_Empty_Indication event in the SPP callback. Once you receive this event, you can send more data. The user will have to take care to send any unsent bytes in the previous call by using the return code of SPP_Data_Write.

Thanks,

Stonestreet One.

0 Richin Abraham over 11 years ago in reply to Stonestreet One Support

Prodigy 190 points

Thank you so much for the help.

http://e2e.ti.com/support/wireless_connectivity/f/660/t/267220.aspx

But in this link there are many solutions. can you please guide me to the correct sample code.(please tell "posted by whom").

And can you please tell the Flash Address to use for LM4F232 or atleast where I can find it.

Richin

0 Stonestreet One Support over 11 years ago in reply to Richin Abraham

Mastermind 7225 points

Hi,

The solutions in the last 2 posts have been posted by the users who have said that its worked fine for them. You are free to use any one for your purposes.

Thanks,

Stonestreet One.

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pairing automatically