iamczx
Member level 3
I use the pearl cmd:
to convert the dc constraint script to cadence's constraint. But it seems the pearl can't recognize the set_input_delay and set_output_delay command.
so I must modify the gcf by hand. AND I think the set_input_delay should according the arrived_time, set_output_delay according required_time,isn't it?
But I don't know the detail fomat,and the gcfcheck always say the modified gcf invalid..
part of modified gcf
plz give some advice.
Thanks in advance.[/b]
Code:
read_dc_script -log aa.log -hpin_log aa_hp.log -retain DAC.dc top_con.cmd
write_gcf top_con.gcfto convert the dc constraint script to cadence's constraint. But it seems the pearl can't recognize the set_input_delay and set_output_delay command.
so I must modify the gcf by hand. AND I think the set_input_delay should according the arrived_time, set_output_delay according required_time,isn't it?
But I don't know the detail fomat,and the gcfcheck always say the modified gcf invalid..
part of modified gcf
Code:
(CELL ()
(SUBSET TIMING
(ENVIRONMENT
(CLOCK "CLK"
clk )
(ARRIVAL (? ) **[b]here I don't know how to descripe[/b]
7.000 8.700 7.000 8.700 D[15:0] )
(REQUIRED (?) **[b]here I don't know how to descripe[/b]
6.000 8.000 6.000 8.000 dout[63:0] )
(INPUT_SLEW * 2.900 * 2.900
rst_n )
(INPUT_SLEW * 2.900 * 2.900
din[0] )
(INPUT_SLEW * 2.900 * 2.900
din[13] )
(INPUT_SLEW * 2.900 * 2.900
test_en )
(INPUT_SLEW * 2.900 * 2.900
din[8] )
(INPUT_SLEW * 2.900 * 2.900
order_mode )
(INPUT_SLEW * 2.900 * 2.900
din[5] )plz give some advice.
Thanks in advance.[/b]