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警告求助

菜鸟
2011-05-07 15:52:00     打赏
WARNING:Xst:2677 - Node <ad_d_4> of sequential type is unconnected in block <DDS>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <odata1_2> (without init value) has a constant value of 0 in block <V_measure>.
WARNING:Xst:2734 - Property "use_dsp48" is not applicable for this technology.
WARNING:Xst:2211 - "D:/example/scan/dds.vhd" line 58: Instantiating black box module <sin>.



关键词: 警告     求助    

专家
2011-05-07 22:25:40     打赏
2楼
连接不正常?

高工
2011-05-07 23:29:07     打赏
3楼
楼主没说清楚,要求助的是哪个Warning?


菜鸟
2011-05-08 12:19:09     打赏
4楼

这些警告都需要解决呢。。。。。


高工
2011-05-09 10:22:22     打赏
5楼
好吧。
WARNING:Xst:2677 - Node <ad_d_4> of sequential type is unconnected in block <DDS>.
连线ad_d_4没有连接到DDS模块

WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <odata1_2> (without init value) has a constant value of 0 in block <V_measure>.
ad_d_4输出被固定在了0,自己检查一下什么原因

WARNING:Xst:2734 - Property "use_dsp48" is not applicable for this technology.
是ISE9.1的BUG,后续版本已经修正
http://www.xilinx.com/support/answers/25090.htm

WARNING:Xst:2211 - "D:/example/scan/dds.vhd" line 58: Instantiating black box module <sin>.
这个无所谓,不用管

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