Forum Discussion
Altera_Forum
Honored Contributor
16 years agoHow to wire to signal tap?
(* keep = 1 *) wire rx_bar_hit/* synthesis keep */;
assign rx_bar_hit = (rx_desc | rx_desc) ? 1'b1 : 1'b0;
But I can't add this signal to Siganl Tap. If I add this signal manualy (just type t...
Altera_Forum
Honored Contributor
16 years ago --- Quote Start --- Hi, did you get a warning like this : "object "rx_bar_hit" assigned a value but never read" ? That means the signal "rx_bar_hit" is not used in your design and it looks like that it --- Quote End --- Yes. I'm not use this wire yet. But I'm expected that wire will be used by Signal Tap. --- Quote Start --- is removed regardless of your "keep" assignment. I assume "keep" will only work in order to prevent the signal to be removed by the synthesis engine. BTW: "noprune" works only for reg ! in case they have no fan out. --- Quote End --- So, there are no way to make wire only for Signal Tap?