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TCI6636K2H: LTE CPRI Serdes loopback mode Problem

Balakrishnan Ramalingam
Prodigy 230 points

Part Number: TCI6636K2H

Hi,

How to test LTE CPRI  Serdes loop back mode  in  keystone II device (TCIEVMk2X evaluation module) using  SFP+ Fiber-optic cable connection. we tested following PDK example codes (PDK version : pdk_keystone2_3_00_03_15)

(C:\ti\pdk_keystone2_3_00_03_15\packages\exampleProjects)

  1.  aif2GenericK2HTestProject
  2. aif2LteCheckRfK2HTestProject
  3. aif2LteCpriK2HTestProject
  4. aif2LteSingleToneK2HTestProject
  5. aif2CpriFastCMK2HTestProject

 above example codes are working with internal loop back mode only. we tested with SFP + fiber optic cable for external loop back test but it didn't work.

 Desperate need of help to resolve the issue

*  How to change above example codes from internal loop back mode to external loop-back

 * which SFP part is suitable for TCIEVMK2X evaluation module for test the five example codes.