Device Family: Intel® Arria® 10 GT, Intel® Arria® 10 GX, Intel® Arria® 10 SX, Intel® Cyclone® 10 GX

Type: Errata

Area: Intellectual Property



Error (10166): SystemVerilog RTL Coding error at altpcieav_dma_hprxm_rdwr.sv(562): always_comb construct does not infer purely combinational logic.

Description

Due to a problem with the Intel® Quartus® Prime Standard software version 18.0 and onwards, when enabling burst capability for RXM BAR2 port of the Intel® Arria® 10 or Intel® Cyclone® 10 GX Avalon®-MM DMA interface for PCI Express* IP, the following Analysis & Synthesis error will occur.

 

Error (10166): SystemVerilog RTL Coding error at altpcieav_dma_hprxm_rdwr.sv(562): always_comb construct does not infer purely combinational logic.

Error (12152): Can't elaborate user hierarchy "*|altpcieav_256_app:g_avmm_256_dma.avmm_256_dma.altpcieav_256_app|altpcieav_dma_hprxm:hprxm_master|altpcieav_dma_hprxm_rdwr:hprxm_pcie_rdwr"

 

 

Workaround/Fix

Modify the verilog file below at the line_602 to fix the problem as follows.

File Path :\ip\altera\altera_pcie\altera_pcie_hip_256_avmm\rtl\altpcieav_dma_hprxm_rdwr.sv

 

From :
        default: avmm_fbe[15:0] = 16'hFFFF;

To :

        default :  begin
               avmm_fbe[15:0] = 16'hFFFF;
               first_dw_holes = 10'h0;
       end

 

This problem is scheduled to be fixed in the Intel® Quartus® Prime Standard software version 18.1 update1 or later.