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!

[bihu]

I think I ignore the time line on S120 document. The BLE S120 will not send the packet when doing scan. And I saw the packet was sent after 50ms that I set as default connection interval. After I set the connection parameters when establish the connection and not scan when send data. But my application can't set the connection interval when establish the connection for the chip didn't send the data all the time. Do you think the peripheral device didn't send LL_CONNECTION_UPDATE_REQ is the TI's bug?