Article ID: 000096654 Content Type: Error Messages Last Reviewed: 06/26/2025

Why do I see the Error "Operation failed" when "Run As > Ashling RISC-V (auto-detect) Hardware Debugging" in RiscFree* IDE?

Environment

    Intel® Quartus® Prime Standard Edition
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Description

Due to a problem in the Quartus® Prime Standard Edition Software version 22.1 and earlier,  if a 16-bit Data Width Avalon® Memory Mapped Slave (e.g., OCRAM) is connected to Nios® V/m processor as Instruction and Data memory, it will result in below error when you run "Run As > Ashling RISC-V (auto-detect) Hardware Debugging" in RiscFree* IDE:

error

 

Resolution

To workaround this problem, add an Avalon® -MM Pipeline Bridge between your Nios® V and your slave memory (e.g., OCRAM)  in Platform Designer.

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