Answers Database ABEL: Signal properties ignored: Warning 18818:Could not find signal or instance <signal_name> associated with property <property_name>. Record #8375 Product Family: Software Product Line: CPLD Implementation Product Part: Abel Problem Title: ABEL: Signal properties ignored: Warning 18818:Could not find signal or instance <signal_name> associated with property <property_name>. Problem Description: Urgency: Standard General Description:      Property statements, including pin assignments, are being dropped or ignored for signal names with leading underscore or containing a tilde. Blif2net issues a warning that these signal names are being renamed in the netlist.      (i.e. Warning 18861:PIN name my~sig being renamed to mysig.) Blif2net then warns that it could not find the original signal names to which to apply the property.      (i.e. Warning 18818:Could not find signal or instance my~sig associated with property LOC.) Solution 1: This problem affects ABEL 7.0 included in both Foundation 2.1i and Webpack2.1. This problem will be fixed in ABEL 7.20 included in Foundation 3.1i and Webpack 2.1WP5.1 Workarounds are: 1) Avoid the use of tilde or leading underscore on signal names to which you need to attach and pass any properties; 2) Find the signal's new name in the log/report and apply the properties in the UCF. End of Record #8375 - Last Modified: 01/13/00 10:00

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