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是一个开发板控制数码管显示的很小的程序
, Z7 C3 v( s3 M开发板里边带的教程程序" C" U8 n0 _* m: ?
应该没有问题 - t& `' t1 K9 [
不过一编译就出现这个警告! X/ c3 x, J' f" ~% V( S8 f
synopsys design constraints file file not found:' exp07_demo.sdc'. a synopsys design constraints file is
3 f$ ~4 }' ]$ T7 q T; K3 [8 ]4 E7 Drequired by the timequest timing analyzer to get proper timing constraints. without it , the compiler will not
# S+ Z ?; B) J, G- I" X0 A7 u; Z+ o& Oproperly optimize the design.. l/ u1 ^3 \8 N' d% o& W$ d y/ `
+ p% R- J; u* z各位大神求指导啊.......{:soso_e101:} |
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