WARNING:Cpld:310 - Cannot apply TIMESPEC TS1000 = PERIOD:PERIOD_sysq<12>.Q:0.000 nS because of one of the following: (a) a signal name was not found; (b) a signal was removed or renamed due to optimization; (c) there is no path between the FROM node and TO node in the TIMESPEC.
WARNING:Cpld:310 - Cannot apply TIMESPEC TS1018 = PERIOD:PERIOD_iow:0.000 nS because of one of the following: (a) a signal name was not found; (b) a signal was removed or renamed due to optimization; (c) there is no path between the FROM node and TO node in the TIMESPEC.
这是用ISE 11.1 Fit之后出现的警告,不知道是不是说我的布局有问题,或者说没有影响?