| Line 39... |
Line 39... |
}
|
}
|
|
|
# the delay cell in the lookahead pipeline
|
# the delay cell in the lookahead pipeline
|
# It is not a problem to get errors here if ENABLE_LOOKAHEAD is not defined.
|
# It is not a problem to get errors here if ENABLE_LOOKAHEAD is not defined.
|
foreach_in_collection celln [get_references -hierarchical outp_buf_*] {
|
foreach_in_collection celln [get_references -hierarchical outp_buf_*] {
|
set_disable_timing [get_object_name $celln]/DLY/U -from A -to Z
|
set_disable_timing [get_object_name $celln]/*DLY/U -from A -to Z
|
}
|
}
|
|
|
# set some timing path ending points
|
# set some timing path ending points
|
set DPD []
|
set DPD []
|
set DPA []
|
set DPA []
|
| Line 59... |
Line 59... |
set IOAI [filter [get_ports *i*] "@port_direction == out"]
|
set IOAI [filter [get_ports *i*] "@port_direction == out"]
|
set IOAO [filter [get_ports *o*] "@port_direction == in"]
|
set IOAO [filter [get_ports *o*] "@port_direction == in"]
|
|
|
# set the timing constraints for data paths and ack paths
|
# set the timing constraints for data paths and ack paths
|
# For better speed performance, please tune these delay and factors according different cell libraries
|
# For better speed performance, please tune these delay and factors according different cell libraries
|
set DATA_dly 5
|
set DATA_dly 1.0
|
set ACK_dly 8
|
set ACK_dly 1.6
|
|
|
set_max_delay [expr ${DATA_dly} * 1.00] -from ${DPA} -to ${DPD} -group G_DATA
|
set_max_delay [expr ${DATA_dly} * 1.00] -from ${DPA} -to ${DPD} -group G_DATA
|
set_max_delay [expr ${ACK_dly} * 1.00] -from ${DPA} -to ${DPA} -group G_ACK
|
set_max_delay [expr ${ACK_dly} * 1.00] -from ${DPA} -to ${DPA} -group G_ACK
|
set_max_delay [expr ${DATA_dly} * 0.30] -from ${IODI} -to ${DPD} -group G_DATA
|
set_max_delay [expr ${DATA_dly} * 0.30] -from ${IODI} -to ${DPD} -group G_DATA
|
set_max_delay [expr ${ACK_dly} * 0.75] -from ${DPA} -to ${IOAI} -group G_ACK
|
set_max_delay [expr ${ACK_dly} * 0.75] -from ${DPA} -to ${IOAI} -group G_ACK
|
| Line 80... |
Line 80... |
set_max_dynamic_power 0.0
|
set_max_dynamic_power 0.0
|
set_max_area 0
|
set_max_area 0
|
|
|
# timing path disabled by user constraints
|
# timing path disabled by user constraints
|
suppress_message TIM-175
|
suppress_message TIM-175
|
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|
|
|
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|
