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Adventurer
Adventurer
226 Views
Registered: ‎10-14-2017

Unknown pulses on CORDIC tlast output

Hi,

I've created a design where I'm using cordic 5.0 core. I've simulated it with iSim and when analyzing it I found something weird on the m_axis_dout_tlast signal. My understanding from reading the datasheet is that when using SIN/COS function of the core then output to m_axis_dout_tlast should be a delayed signal passed into s_axis_phase_tlast. However on trace it shows some weird longer pulses on it which I cannot understand.

Below is a screenshot of trace where is shown the s_axis_phase_tlast and m_axis_dout_tlast lines. Can someone explain to me this? Have I misunderstood the datasheet maybe?

isim_cordic_output.png

 

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Adventurer
Adventurer
150 Views
Registered: ‎10-14-2017

Re: Unknown pulses on CORDIC tlast output

Anyone? Is it that obvious that nobody botheres to answer or is it because nobody has had the same problem and can comment?

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