When keep attributes on signals in HDL are synthesized by Vivado Synthesis, the keep attributes are propagated to instances connected to these signals and taken off the signal itself in the .edf (in 2013.1, the keep attribute on the signal itself is changed to an rtl_keep attribute). XST and Synplify, however, might still have flows that put keep attributes on the nets themselves in the .edf, and these attributes will then be interpreted as mark_debug attributes in Vivado.
The work-around is to change the keep attributes to save attributes in the HDL.
| AR# 54879 | |
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| Date | 07/19/2013 |
| Status | Active |
| Type | General Article |
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