Why does Nordic_Uart sample do an illegal response for iPhone X?

I am trying to communicate with iPhone X using Nordic_Uart sample project in SDK 14.2. And I check the Protocols between nRF52DK and iPhone X by using Ellisys Bluetooth Tracker, I found an error on LLCP Length Response. LL_LENGTH_RSP.png

The nRF52DK responses a value of 313 as both MaxTx and MaxRx for iPhone X. why does this incomprehensible thing occur?

Parents Reply Children