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pp's avatar
pp
Icon for Occasional Contributor rankOccasional Contributor
5 years ago

fft_ip核仿真，接口时序问题

我使用的软件版本是2018.1 pro专业版 在对FFT IP核进行仿真时，对其时序产生疑问，请各位帮我看看，我输入的信号时序，哪里给错了，为何输出的source_error会给2b'11的值 IP核的配置如下 请求帮忙，卡了好久了，实在不知道哪里出了问题
CheepinC_altera's avatar
CheepinC_altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,


I notice that from your screenshot, when the sink_sop & sink_valid = 1, the sink_real = 0x0. Just to check with you if your first input data is 0x0 or 0x1fd511fa?


Please let me know if there is any concern. Thank you.



Best regards,

Chee Pin



  • pp's avatar
    pp
    Icon for Occasional Contributor rankOccasional Contributor
    5 years ago

    您好：

    sink_sop & sink_valid = 1，sink_real = 0x0是对的，我是用Matlab生成了一段正弦波，然后直接导出数据，用testbench写入的