AIF RM Resync Problem after LOS

Hakki KURUMAHMUT

Prodigy 30 points

Other Parts Discussed in Thread: TCI6638K2K

Hi ,I am using AIF2 LLD 1.0.0.16 version LTE 20MHZ, CPRI, FDD, 2 link 4 AxC with 4x4 MIMO unit.

When I pull out the fiber cable the RM sync_status is changing from ST3 to ST0.

"RM Link Status 0 Register" is 0x308 or 0xB08 values(LOS, UNSYNC).

Then I plug in the fiber, RM sync_status does not change to ST3 state or any other state.

How to resync AIF with fiber?

Thanks for your reply.

over 11 years ago

0 Raja over 11 years ago

TI__Guru* 81335 points

Hi,

Could you please provide your DSP part number?

Thanks.

0 Hakki KURUMAHMUT over 11 years ago in reply to Raja

Prodigy 30 points

We are using TCI6638K2K Keystone II device on board.

0 Hakki KURUMAHMUT over 11 years ago in reply to Hakki KURUMAHMUT

Prodigy 30 points

I think it is should be a basic feature of aif2 chip but I have not found any description how to resync links with each other(or single link) when one link arrive to ST0 state.

It is important for our design because 4 antenna symbol number (over link 2 and link 3)must be the same to reenable EDMA and FFTC blocks. We are designed of Advanced design this document (http://www.ti.com/lit/an/sprabf3/sprabf3.pdf)

0 Raja over 11 years ago in reply to Hakki KURUMAHMUT

TI__Guru* 81335 points

Hi,

TCI6638K2K are supported directly through Local Field Applications Engineers (FAEs.) These devices are not supported on the E2E forum. Please contact your local FAE for support of these devices. If you are not sure who your local FAE is, then please contact your local technical sales representative and they will be able to put you in contact with your local FAE.

Thanks.

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AIF RM Resync Problem after LOS