Device Family: Stratix® IV E, Stratix® IV GT, Stratix® IV GX, Stratix® V E, Stratix® V GS, Stratix® V GT, Stratix® V GX

Type: Answers, How-To

Area: Component, EMIF



Fatal Error: Read data comes back but dynamic OCT ctrl is not in read mode

Description

You may see the following error when you simulate the UniPHY based DDR3 controller in full calibration mode.

# ** Fatal: Read data comes back but dynamic OCT ctrl is not in read mode

Workaround/Fix

  1. Open the following file in your simulation file-set: altdq_dqs2_ddio_3reg_<user_device>.sv
  2. Find the following line: (1, "Read data comes back but dynamic OCT ctrl is not in read mode");
  3. Replace the line above with the following line: ("Read data comes back but dynamic OCT ctrl is not in read mode at time %f", );

The simulation should run without any errors once the above change is implemented.