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Altera_Forum
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15 years ago

Simulation fails when it goes into big design.

Ok guys, I have designed a small block that does some counting and put some signals to zero while its counting.. library IEEE; use IEEE.STD_LOGIC_1164.ALL; --use IEEE.STD_LOGIC_ARITH.ALL; u...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

After poking at Assignments -> Settings -> Simulator Settings -> Simulation Verification

tick enable on Setup and hold time violation detection.

I get this during 'timing simulations' 


Warning: Found setup time violation at time 3198.98 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 3198.98 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 3199.03 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 3199.16 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 3205.64 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 3205.64 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 3205.64 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 3205.64 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 3212.31 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 3832.25 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 3832.25 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 3832.34 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 3838.91 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 3838.91 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 3838.91 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 3838.91 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 3838.97 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 3839.06 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 5105.45 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 5105.55 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 5112.12 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 5112.12 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 5112.12 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 5112.12 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 5112.18 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 5112.25 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 5112.26 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 7658.53 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 7658.53 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 7658.53 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 7658.53 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 7658.59 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 7658.66 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 7658.68 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 9565.18 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 9565.18 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 9571.67 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 9571.67 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 9571.67 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 9571.67 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 9571.73 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 9571.81 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 9571.82 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 10198.28 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|PWMB7_DB_reg"
Warning: Found setup time violation at time 10198.28 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|PWMB8_DB_reg"
Warning: Found setup time violation at time 10198.28 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:prev_T3PWM"
Warning: Found setup time violation at time 10204.94 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 10204.94 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 10204.94 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 10204.94 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 10205.0 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 10205.09 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 11478.15 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 11484.81 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 11484.81 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 11484.87 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 11484.96 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 11485.0 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 11491.48 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 11491.48 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 11491.48 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 12758.02 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 12758.02 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 12758.08 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found hold time violation at time 12758.2 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 12764.69 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 12764.69 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 12764.69 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 12764.69 ns on register "|cpt_spi_to_mb|spi_to_bus_v5:inst2|\DB_T3PWM_proc:count"
Warning: Found setup time violation at time 12771.35 ns on register
...
Since the T3PWM and the clock coming from the DSP aren't always in sync/phase, should I have another DFF before sending the input into this block?