vivado仿真报错:concurrent assignment to a non-net led is not permitted

这是因为output默认是wire型,你在仿真文件中写成了reg型,所以会报错。
另外注意initial中只能对reg型进行赋值,如果led是wire型就会报以下错误。
vivado仿真报错:concurrent assignment to a non-net led is not permitted_第1张图片

[VRFC 10-1280] procedural assignment to a non-register led is not permitted
删除对led的赋值即可。

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