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Simulators >> Logic Simulators >> Issue of unrecognized system task or function: $cdn_ahb_access
https://designers-guide.org/forum/YaBB.pl?num=1511879030

Message started by TDG_40 on Nov 28^th, 2017, 6:23am

Title: Issue of unrecognized system task or function: $cdn_ahb_access
Post by TDG_40 on Nov 28^th, 2017, 6:23am

Hi,
I'm trying to verify the simple AHB block by using VIPCAT, so I made simple test.v as the below

`timescale 1ps/1ps

module test2(
HCLK,
HRESET,
HADDR,
HTRANS,

...
HLOCK,
HGRANT
);
parameter interface_soma = "test2.soma";
parameter init_file = "";
parameter sim_control = "";
input HCLK;
input HRESET;
output [31:0] HADDR;

...

assign HBUSREQ = den_HBUSREQ;
output HLOCK;
reg den_HLOCK;
assign HLOCK = den_HLOCK;
input HGRANT;
initial
$cdn_ahb_access(HCLK,HRESET,den_HADDR,den_HTRANS,den_HWRITE,den_HSIZE,den_HBURST,den_HPROT,den_HWDATA,HRDATA,HREADY,HRESP,den_HBUSREQ,den_HLOCK,HGRANT);
endmodule

And I want to use the VIPCAT to generate a BFM file for the AHB interfacing test.
But I'm stuck in the below process. How do I resolve this problem?

When I execute with the below command
$ncverilog +access+wrc test2.v

then I've got the below errors $cdn_ahb_access(HCLK,HRESET,den_HADDR,den_HTRANS,den_HWRITE,den_HSIZE,den_HBURST,den_HPROT,den_HWDATA,HRDATA,HREADY,HRESP,den_HBUSREQ,den_HLOCK,HGRANT);
|
ncelab: *W,MISSYST (./test1.v,70|18): Unrecognized system task or function: $cdn_ahb_access (did not match built-in or user-defined names) [2.7.4(IEEE Std 1364-2001)]

Could you please help me how can I resolve this problem?.

I've attached with file (.v and executing file)
Would you help me how do I get the correct executing file?

Title: Re: Issue of unrecognized system task or function: $cdn_ahb_access
Post by Andrew Beckett on Dec 21^st, 2017, 7:21am

Not really my field, but some records of this suggest that it's due to not having been set up or not including the VIP PLI on the command line.

I suggest you try doing (set the path to your installation with setenv if csh, or export if using bash/ksh):

setenv CDN_VIP_ROOT /path/to/VIPCAT_release
$CDN_VIP_ROOT/tools/denali/example/cdn_ahb/svExamples/simpleExample/example_setup_ncsim.csh

Do this in an empty directory and then inspect the various files in the directory.

If this doesn't help, best to go to support.cadence.com and ask for help...

Regards,

Andrew.