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Trying to Configure 2TX and 2RX lanes (no OBS) using NO_OS.

Question asked by RyanSw on Aug 3, 2017
Latest reply on Aug 8, 2017 by rejeesh



We are using the 9371 board and are trying to configure a 2TX, 2RX lane system (no observation required).  We can get the default 4TX and 2RX going using the NO-OS code. 


We noticed that the FPGA JESD IP is hard coded to 4 lanes.  Can we reconfigure this using software? If so, what steps are required to do this?


We have tried hard coding the FPGA JESD IP to use only 2 lanes, is this the correct method?  This method did not work for us, we may be missing a configuration step. 


We have changed the 9371.c file to reflect the use of only 2 deframer lanes.  Does the crossbar need to be changed?  Are there other parameters that need to change in the Mykonos in order to use only 2 TX lanes?


Any help on the matter would be greatly appreciated.