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CC2541 can't send LL_CONNECTION_UPDATE_REQ when connect with Nordic

Other Parts Discussed in Thread: CC2541

Hi,


I'm doing a test between CC2541 and Nordic NRF51822. The CC2541 work as a peripheral role. NRF51822 as central role.

I want update the connection interval after CC2541 establish a connection to NRF51822. The bellow is my test parameter.

GAPRole_SendUpdateParam(6, 20, 0, 400, 0).

This can works when CC2541 connect to CC2541 central device.

And I use the BPA sniffer to capture the packets between the TI and Nordic. I didn't see any packet LL_CONNECTION_UPDATE_REQ on the air.


So what happened in the TI peripheral stack when connect to Nordic?

Thanks!