how to deal with Multilink·s connect interval ？

[delay_7]

dear all：

My device designed by nRF52840，it·s a central and peripherals at the same time .I have a problem about connect interval .My device as central need connect with 10 peripherals(designed by nRF52810),and as peripheral connect with a mobile phone .    when connect with Multi peripherals  ， it always disconnected ，the reason is error 8  （BLE_HCI_CONNCET_TIMEOUT. it maybe related to the softdevice timing and connect interval。so i want to know how  to  deal with  Multilink·s connect interval ？

 

best wishs

[haakonsh]

What connection intervals are you getting? 

do you have a sniffer log?

[delay_7]

yeah，I have a log getted by sniffer. It show that the connection intervals  are not regular，include 30 ms（my nRF52840 set max connections interval ） or  200  ms（my nRF52810 set max connections interval），sometimes，it establish connection and then use 30 ms to transfer connection pack ， it always disconnected，but  sometimes，it establish connection and then use 200 ms to transfer connection pack，so is  the connection interval depended on central or peripheral？

[haakonsh]

The Connection Interval is negotiated, but ultimately the Central decides what Connection Interval to use. The Peripheral can tell the Central that it would like a minimum connection interval of 30ms and a maximum of 200ms, but the Central can choose to ignore it and use whatever Connection Interval it wants. 

Can you share the sniffer trace?