Warning: Latch audio_deal:audio_deal_inst|val_vrefl[2] has unsafe behavior Warning: Ports D and ENA on the latch are fed by the same signal audio_deal:audio_deal_inst|waveform_l[0]
解决： if...else...要写全
原文：http://www.cnblogs.com/sungngaichen/p/3760361.html