player80
Full Member level 2
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Path Begin : dcfx/fifo/d2_gray_enc_rd_addr_i_i11/Q
Path End : dcfx/fifo/w_ptr_diff_i__i13/D
Source Clock : clk_in
Destination Clock : clk_in
Logic Level : 27
Delay Ratio : 68.6% (route), 31.4% (logic)
Setup Constraint : 16666 ps
Path Slack : -17103 ps (Failed)
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Can someone help me to understand this report?
The Path Slack is -17.103ns, the Setup Constraint 16.6ns, does that mean if the slack would be -15 it would be okay?
The entire design works, I have tested it over days. Initially the slack was 64ns (that seriously failed), after rewriting the fifo with a different strategy it went down to that value.
Path Begin : dcfx/fifo/d2_gray_enc_rd_addr_i_i11/Q
Path End : dcfx/fifo/w_ptr_diff_i__i13/D
Source Clock : clk_in
Destination Clock : clk_in
Logic Level : 27
Delay Ratio : 68.6% (route), 31.4% (logic)
Setup Constraint : 16666 ps
Path Slack : -17103 ps (Failed)
-------------------------------------------------
Can someone help me to understand this report?
The Path Slack is -17.103ns, the Setup Constraint 16.6ns, does that mean if the slack would be -15 it would be okay?
The entire design works, I have tested it over days. Initially the slack was 64ns (that seriously failed), after rewriting the fifo with a different strategy it went down to that value.
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