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RTOS/CC2541: Random disconnections

Part Number: CC2541


Tool/software: TI-RTOS

Hi all,

Starting from the AdvRemote project with a CC2541. I observe random disconnection, some remotes disconnect  every 15 minutes some others really rarely disconnects.

I started with the stack v1.4.1 and I was already observing those disconnections so I restarted the project on the stack v1.4.2 but I still observe those random disconnection.

Those disconnections happen even with the remote close to the master and the remote is reconnecting a few seconds after but the remote can't send any keys during this time. 

Here's the BLE Parameters I use :

- Update Parameter Enabled

- Min connection Interval : 10ms

- Max Connection Interval : 10ms

- Slave Latency : 39

- Connection Timeout : 3s

Does anyone have any ideas of what could be the origin of those disconnection?

Thanks in advance,

Sylvain