CC2560 Bluetooth Ethermind BT stack packet loss

Adam Zehavi

Other Parts Discussed in Thread: CC2560

Hi,

Is there any way to determine if there were any packet lost on the sender side, using the EtherMind BT stack, used in the CC2560/PAN1315 dev kit examples?

Thanks,

Adam.

over 13 years ago

0 Miguel over 13 years ago

TI__Mastermind 23565 points

Adam,

The SPP profile does not implement any type of flow control. You would have to implement this as part of your application.

Regards,

Miguel

0 Adam Zehavi over 13 years ago in reply to Miguel

Intellectual 875 points

Migule,

Just to see that I got it right, I send a packet, and the errors I might get are internal errors, and the SPP_SEND_CNF event success or fail, is just an internal event saying, I've [sent/failed to send] the packet, regardless if the peer got the packet or not.

Adam.

0 Miguel over 13 years ago in reply to Adam Zehavi

TI__Mastermind 23565 points

Adam,

Yes, your understanding is correct.

Regards,

Miguel

0 Adam Zehavi over 13 years ago in reply to Miguel

Intellectual 875 points

Miguel,

After long time learning the subject, I've transmitted around 500k packets so far, and I must say I disagree with your input. My research has shown that there is no case that a SPP_SEND_CNF is returned successful, and a packet not arriving on the other end, which makes me believe that there is a packet validation process in the BT stack, and that all packets which are indicated as successful indeed reach the other peer.

Adam.

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CC2560 Bluetooth Ethermind BT stack packet loss