Article ID: 000099231 Content Type: Product Information & Documentation Last Reviewed: 07/16/2024

Why does the LPDRR4 EMIF IP hang when attempting to read from it when using the Agilex™ 5 AXI-4 Interface?

Environment

    Intel® Quartus® Prime Pro Edition
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Description

 Due to a problem in the Quartus® Prime Pro Edition Software version 24.1, the LPDDR4 EMIF IP may hang when attempting to read from memory using the AXI-4 interface due to signals being unintentionally optimized away.

 

 

Resolution

To workaround this problem, add the /*synthesis dont_merge syn_preserve = 1*/  attribute to all the registers of the AXI bus driving the Trafic Generator.

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