Thank you , aslijia and aji_vlsi.
write_sdf -v 1.0 *****
sorry, I dont understand what it mean? I didnot use this command. please tell all of .
I check my log.
the log file give a message of timing violation.
Warning! Timing violation
$hold( negedge XC &&& D:2000240 PS, posedge XR:2000440 PS, 21 : 210 PS );
File: /project/VDEC/rohm035u/lib/Verilog/ROHM035.v, line = 967
Scope: top_test.SIN_POUT.\U1/OUT_REG[0]
Time: 2000440 PS
but the report of astro is Timing met. why?
how will I fix my P&R or other question?
Thank you very much!
mark. lee