ChipScope Core Generator Flow

[Thomas Reinemann]

Hello,

I want to use the Xilinx Chipscope. As described I generated the
controller and logic analyzer using the ChipScope Core Generator and
than instantiated the icon and ila instances in my VHDL and synthesised
it using Precision RTL. But the generated edif file does not contain any
cell icon and ila. Therefore Chipscpoe logic isn't implemented and I
can't use it.

What is my fault?

Regards

Thomas Reinemann

 

[Jim Wu]

Hello,

I want to use the Xilinx Chipscope. As described I generated the
controller and logic analyzer using the ChipScope Core Generator and
than instantiated the icon and ila instances in my VHDL and synthesised
it using Precision RTL. But the generated edif file does not contain any
cell icon and ila. Therefore Chipscpoe logic isn't implemented and I
can't use it.

What is my fault?

Could be that Precision RTL optimizes out the icon and ila instantiations.
I've never used Precision RTL, but it should have a way (most synthesis
tools do) to not optimize out certain blocks.

HTH,
Jim
jimwu88NOOOSPAM@yahoo.com
http://www.geocities.com/jimwu88/chips

 

[Symon]

Very true, for example you need this with Synplify

attribute syn_black_box : boolean;
attribute syn_black_box of icon : component is TRUE;
attribute syn_noprune : boolean;
attribute syn_noprune of icon : component is TRUE;

HTH, Syms.

"Jim Wu" <NOSPAM@NOSPAM.com> wrote in message
news:2gUmc.17549$vz5.3774@nwrdny01.gnilink.net...

Could be that Precision RTL optimizes out the icon and ila instantiations.
I've never used Precision RTL, but it should have a way (most synthesis
tools do) to not optimize out certain blocks.

 

[Thomas Reinemann]

Symon wrote:

Very true, for example you need this with Synplify

attribute syn_black_box : boolean;
attribute syn_black_box of icon : component is TRUE;
attribute syn_noprune : boolean;
attribute syn_noprune of icon : component is TRUE;

For Precision one needs:

attribute preserve_driver : boolean;
attribute preserve_driver of control0 : signal is true;

The Chipscope Core Generator generates attributes for the predecessor of
Precision, Leonardo and I assumed they are compatible :-(.

Bye Tom