CC2541 can't update S120 connection parameters

[bihu]

Hi Guys,

I'm doing a test between CC2541 and Nordic NRF51822. The CC2541 work as a peripheral role. NRF51822 as central role. But CC2541 can update another CC2541 that work as central role.

I didn't see any packet LL_CONNECTION_UPDATE_REQ on sinffer's capture message. Does this problem is a known problem? And any body have a solution?

Thanks!

[Hung Bui]

What the peripheral can do is to set it's preferred connection parameter so that the central device can read and update accordingly if the central wants. Or the peripheral can send the connection parameter request (it's not the same as LL_CONNECTION_UPDATE_REQ) if the central accept that it will send LL_CONNECTION_UPDATE_REQ to update the connection parameter that justified with the request from peripheral. You can have a look here.