Loading Memory Contents With File I/O Tasks - 2024.1 English

Vivado Design Suite User Guide: Synthesis (UG901)

Document ID
UG901
Release Date
2024-05-30
Version
2024.1 English

Use the $readmemb and $readmemh system tasks to initialize block memories.

  • Use $readmemb for binary representation.
  • Use $readmemh for hexadecimal representation.
  • Use index parameters to avoid behavioral conflicts between Vivado synthesis and the simulator.
$readmemb("rams_20c.data",ram, 0, 7);