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jmountney
Observer
Observer
8,174 Views
Registered: ‎09-30-2014

Initializing MIG

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It is my understanding that the initialization process between the MIG and external memory is handled completely internal to the MIG.

 

Is this correct?

 

Are there any commands that need to be sent to the MIG in order to start intiiatlization or will the process automatically start after reset?

 

In sim_tb_top.v, there is a 50 micosecond delay after inti_calib_complete is asserted before displaying "Calibration Done". Is this wait period necesssary to complete calibration in a physical design or is this delay strictly for the example simulation testbench?

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vsrunga
Xilinx Employee
Xilinx Employee
14,543 Views
Registered: ‎07-11-2011

HI,

 

 MIG calibration will be done automatically every power on reset or sys_rst, it required no external commands

The 50us in sim_tb_top is expected calibration completion time in simulation, in real HW it might take few microseconds but  negligible time

 

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vsrunga
Xilinx Employee
Xilinx Employee
14,544 Views
Registered: ‎07-11-2011

HI,

 

 MIG calibration will be done automatically every power on reset or sys_rst, it required no external commands

The 50us in sim_tb_top is expected calibration completion time in simulation, in real HW it might take few microseconds but  negligible time

 

---------------------------------------------------------------------------------------------
Please do google search before posting, you may find relavant information.
Mark the post - "Accept as solution" and give kudos if information provided is helpful and reply oriented

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tomray
Observer
Observer
8,141 Views
Registered: ‎03-27-2014

Can I cancel the calibration when simulating with MIG, it's a little long to wait the calibration completion.

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