How to manually instantiate the hard input FIFO from ALTDQ_DQS2 in Stratix V? - How to manually instantiate the hard input FIFO from ALTDQ_DQS2 in Stratix V?
Description For designs in Stratix ® V devices using the ALTDQ_DQS2 megafunction with hard input FIFO enabled, there is a known issue where the hard input FIFO is not instantiated correctly. When enabling hard input FIFO, take note of the following: 1. Y ou must instantiate both “stratixv_read_fifo” and “stratixv_read_fifo_read_enable” blocks as per the UniPHY implementation 2. Some edits are required for “altdq_dqs2_stratixv_<design_file_name>.sv”, otherwise you will get the following fitter error during compilation: Error (175001): Could not place DQS Logic Block – Dynamic OCT Control Path fed by DQS I/O pad Resolution Contact Altera® Support for details regarding the “stratixv_read_fifo” and “stratixv_read_fifo_read_enable” blocks as well as the changes required in the “altdq_dqs2_stratixv_<design_file_name>.sv” file. This issue will be fixed in a future version of the Quartus® II software.
Custom Fields values:
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Troubleshooting
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False
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['FPGA Dev Tools Quartus II Software']
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11.1.2
['Stratix® V E FPGA', 'Stratix® V FPGAs', 'Stratix® V GS FPGA', 'Stratix® V GT FPGA', 'Stratix® V GX FPGA']
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['novalue'] - 2021-08-25
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