lab6.sdc

#**************************************************************
# This .sdc file is created by Terasic Tool.
# Users are recommended to modify this file to match users logic.
#**************************************************************

#**************************************************************
# Create Clock
#**************************************************************
create_clock -period "10.0 MHz" [get_ports ADC_CLK_10]
create_clock -period "50.0 MHz" [get_ports MAX10_CLK1_50]
create_clock -period "50.0 MHz" [get_ports MAX10_CLK2_50]




# SDRAM CLK
create_generated_clock -source [get_pins { m_lab61_soc|sdram_pll|sd1|pll7|clk[1] }] \
                      -name clk_dram_ext [get_ports {DRAM_CLK}]


#**************************************************************
# Create Generated Clock
#**************************************************************
derive_pll_clocks -create_base_clocks



#**************************************************************
# Set Clock Latency
#**************************************************************



#**************************************************************
# Set Clock Uncertainty
#**************************************************************
derive_clock_uncertainty



#**************************************************************
# Set Input Delay
#**************************************************************
# suppose +- 100 ps skew
# Board Delay (Data) + Propagation Delay - Board Delay (Clock)
# max 5.4(max) +0.4(trace delay) +0.1 = 5.9
# min 2.7(min) +0.4(trace delay) -0.1 = 3.0
set_input_delay -max -clock clk_dram_ext 5.9 [get_ports DRAM_DQ*]
set_input_delay -min -clock clk_dram_ext 3.0 [get_ports DRAM_DQ*]


#shift-window
set_multicycle_path -from [get_clocks {clk_dram_ext}] \
                    -to [get_clocks  { m_lab61_soc|sdram_pll|sd1|pll7|clk[1] }] \
						  -setup 2
						  
#**************************************************************
# Set Output Delay
#**************************************************************
# suppose +- 100 ps skew
# max : Board Delay (Data) - Board Delay (Clock) + tsu (External Device)
# min : Board Delay (Data) - Board Delay (Clock) - th (External Device)
# max 1.5+0.1 =1.6
# min -0.8-0.1 = 0.9
set_output_delay -max -clock clk_dram_ext 1.6  [get_ports {DRAM_DQ* DRAM_*DQM}]
set_output_delay -min -clock clk_dram_ext -0.9 [get_ports {DRAM_DQ* DRAM_*DQM}]
set_output_delay -max -clock clk_dram_ext 1.6  [get_ports {DRAM_ADDR* DRAM_BA* DRAM_RAS_N DRAM_CAS_N DRAM_WE_N DRAM_CKE DRAM_CS_N}]
set_output_delay -min -clock clk_dram_ext -0.9 [get_ports {DRAM_ADDR* DRAM_BA* DRAM_RAS_N DRAM_CAS_N DRAM_WE_N DRAM_CKE DRAM_CS_N}]


#**************************************************************
# Set Clock Groups
#**************************************************************



#**************************************************************
# Set False Path
#**************************************************************
set_false_path -from * -through * -to LEDR[?]
set_false_path -from [get_ports KEY*] -to * 
set_false_path -from [get_ports SW*] -to *
set_false_path -from [get_ports {DRAM_DQ* DRAM_*DQM}] -to *
set_false_path -from [get_ports {DRAM_ADDR* DRAM_BA* DRAM_RAS_N DRAM_CAS_N DRAM_WE_N DRAM_CKE DRAM_CS_N}] -to *


#**************************************************************
# Set Multicycle Path
#**************************************************************



#**************************************************************
# Set Maximum Delay
#**************************************************************



#**************************************************************
# Set Minimum Delay
#**************************************************************



#**************************************************************
# Set Input Transition
#**************************************************************
# set_input_delay -max -clock clk_dram_ext 1.6  [get_ports {DRAM_DQ* DRAM_*DQM}]


#**************************************************************
# Set Load
#**************************************************************