A customer wants to force the connection interval to be 7.5ms, but after the connection param update is accpected, the central side(cellphone) always sends another connection update indication to change the interval to a higher value. Can the peripheral refuse the central's connection update indication?
Best regards,
Shuyang
Hi Clement,
I may be confused by the connection param update concept a little bit, please correct me if my understanding is wrong:
What I am trying to achieve is to send a connection param update from simple_peripheral to a cellphone to use a 7.5ms connection interval, what I observed from the sniffer log is that the central accpected the request, but later it sent an LL_CONNECTION_UPDATE_IND with 11.25ms interval.
And then the central sent two more LL_CONNECTION_UPDATE_IND with 7.5ms and 11.25ms interval seperately, eventually the connection interval was set to 11.25ms.
What I'm trying to understand is:
1. Is the LL_CONNECTION_UPDATE_IND the result of the connection param update being accepted by the cellphone? Or the cellphone can actively send LL_CONNECTION_UPDATE_IND without being requested?
2. Why is the interval in LL_CONNECTION_UPDATE_IND 11.25ms not 7.5ms?
3. Is it possible for the peripheral to deny this LL_CONNECTION_UPDATE_IND?
Best regards,
Shuyang
