Lattice Synthesis Timing Report -------------------------------------------------------------------------------- Lattice Synthesis Timing Report, Version Sun Nov 07 13:36:06 2021 Copyright (c) 1991-1994 by NeoCAD Inc. All rights reserved. Copyright (c) 1995 AT&T Corp. All rights reserved. Copyright (c) 1995-2001 Lucent Technologies Inc. All rights reserved. Copyright (c) 2001 Agere Systems All rights reserved. Copyright (c) 2002-2020 Lattice Semiconductor Corporation, All rights reserved. Report Information ------------------ Design: TinyFPGA_A2 Constraint file: Report level: verbose report, limited to 3 items per constraint -------------------------------------------------------------------------------- ================================================================================ Constraint: create_clock -period 5.000000 -name clk0 [get_nets clk] 311 items scored, 41 timing errors detected. -------------------------------------------------------------------------------- Error: The following path violates requirements by 0.878ns Logical Details: Cell type Pin type Cell name (clock net +/-) Source: FD1S3AX CK led_timer_16__i0 (from clk +) Destination: FD1S3AX D led_timer_16__i23 (to clk +) Delay: 5.718ns (62.9% logic, 37.1% route), 14 logic levels. Constraint Details: 5.718ns data_path led_timer_16__i0 to led_timer_16__i23 violates 5.000ns delay constraint less 0.160ns L_S requirement (totaling 4.840ns) by 0.878ns Path Details: led_timer_16__i0 to led_timer_16__i23 Name Fanout Delay (ns) Pins Resource(Cell.Net) L_CO --- 0.444 CK to Q led_timer_16__i0 (from clk) Route 1 e 0.941 n24 A1_TO_FCO --- 0.827 A[2] to COUT led_timer_16_add_4_1 Route 1 e 0.020 n157 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_3 Route 1 e 0.020 n158 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_5 Route 1 e 0.020 n159 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_7 Route 1 e 0.020 n160 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_9 Route 1 e 0.020 n161 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_11 Route 1 e 0.020 n162 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_13 Route 1 e 0.020 n163 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_15 Route 1 e 0.020 n164 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_17 Route 1 e 0.020 n165 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_19 Route 1 e 0.020 n166 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_21 Route 1 e 0.020 n167 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_23 Route 1 e 0.020 n168 FCI_TO_F --- 0.598 CIN to S[2] led_timer_16_add_4_25 Route 1 e 0.941 n102 -------- 5.718 (62.9% logic, 37.1% route), 14 logic levels. Error: The following path violates requirements by 0.701ns Logical Details: Cell type Pin type Cell name (clock net +/-) Source: FD1S3AX CK led_timer_16__i0 (from clk +) Destination: FD1S3AX D led_timer_16__i21 (to clk +) Delay: 5.541ns (62.1% logic, 37.9% route), 13 logic levels. Constraint Details: 5.541ns data_path led_timer_16__i0 to led_timer_16__i21 violates 5.000ns delay constraint less 0.160ns L_S requirement (totaling 4.840ns) by 0.701ns Path Details: led_timer_16__i0 to led_timer_16__i21 Name Fanout Delay (ns) Pins Resource(Cell.Net) L_CO --- 0.444 CK to Q led_timer_16__i0 (from clk) Route 1 e 0.941 n24 A1_TO_FCO --- 0.827 A[2] to COUT led_timer_16_add_4_1 Route 1 e 0.020 n157 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_3 Route 1 e 0.020 n158 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_5 Route 1 e 0.020 n159 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_7 Route 1 e 0.020 n160 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_9 Route 1 e 0.020 n161 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_11 Route 1 e 0.020 n162 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_13 Route 1 e 0.020 n163 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_15 Route 1 e 0.020 n164 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_17 Route 1 e 0.020 n165 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_19 Route 1 e 0.020 n166 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_21 Route 1 e 0.020 n167 FCI_TO_F --- 0.598 CIN to S[2] led_timer_16_add_4_23 Route 1 e 0.941 n104 -------- 5.541 (62.1% logic, 37.9% route), 13 logic levels. Error: The following path violates requirements by 0.701ns Logical Details: Cell type Pin type Cell name (clock net +/-) Source: FD1S3AX CK led_timer_16__i0 (from clk +) Destination: FD1S3AX D led_timer_16__i22 (to clk +) Delay: 5.541ns (62.1% logic, 37.9% route), 13 logic levels. Constraint Details: 5.541ns data_path led_timer_16__i0 to led_timer_16__i22 violates 5.000ns delay constraint less 0.160ns L_S requirement (totaling 4.840ns) by 0.701ns Path Details: led_timer_16__i0 to led_timer_16__i22 Name Fanout Delay (ns) Pins Resource(Cell.Net) L_CO --- 0.444 CK to Q led_timer_16__i0 (from clk) Route 1 e 0.941 n24 A1_TO_FCO --- 0.827 A[2] to COUT led_timer_16_add_4_1 Route 1 e 0.020 n157 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_3 Route 1 e 0.020 n158 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_5 Route 1 e 0.020 n159 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_7 Route 1 e 0.020 n160 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_9 Route 1 e 0.020 n161 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_11 Route 1 e 0.020 n162 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_13 Route 1 e 0.020 n163 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_15 Route 1 e 0.020 n164 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_17 Route 1 e 0.020 n165 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_19 Route 1 e 0.020 n166 FCI_TO_FCO --- 0.157 CIN to COUT led_timer_16_add_4_21 Route 1 e 0.020 n167 FCI_TO_F --- 0.598 CIN to S[2] led_timer_16_add_4_23 Route 1 e 0.941 n103 -------- 5.541 (62.1% logic, 37.9% route), 13 logic levels. Warning: 5.878 ns is the maximum delay for this constraint. Timing Report Summary -------------- -------------------------------------------------------------------------------- Constraint | Constraint| Actual|Levels -------------------------------------------------------------------------------- | | | create_clock -period 5.000000 -name | | | clk0 [get_nets clk] | 5.000 ns| 5.878 ns| 14 * | | | -------------------------------------------------------------------------------- 1 constraints not met. -------------------------------------------------------------------------------- Critical Nets | Loads| Errors| % of total -------------------------------------------------------------------------------- n161 | 1| 41| 99.00% | | | n162 | 1| 41| 99.00% | | | n163 | 1| 41| 99.00% | | | n164 | 1| 41| 99.00% | | | n160 | 1| 39| 95.12% | | | n165 | 1| 39| 95.12% | | | n159 | 1| 33| 80.49% | | | n166 | 1| 33| 80.49% | | | n158 | 1| 23| 56.10% | | | n167 | 1| 23| 56.10% | | | n24 | 1| 9| 21.95% | | | n102 | 1| 9| 21.95% | | | n157 | 1| 9| 21.95% | | | n168 | 1| 9| 21.95% | | | n22 | 1| 7| 17.07% | | | n23 | 1| 7| 17.07% | | | n103 | 1| 7| 17.07% | | | n104 | 1| 7| 17.07% | | | n20 | 1| 5| 12.20% | | | n21 | 1| 5| 12.20% | | | n105 | 1| 5| 12.20% | | | n106 | 1| 5| 12.20% | | | -------------------------------------------------------------------------------- Timing summary: --------------- Timing errors: 41 Score: 14758 Constraints cover 311 paths, 61 nets, and 84 connections (85.7% coverage) Peak memory: 53612544 bytes, TRCE: 1777664 bytes, DLYMAN: 0 bytes CPU_TIME_REPORT: 0 secs