Lab_7_Part_3: FFT IP and Verification via Testbench

Topic: FFT IP and Verification via Testbench
Instructor: Shragvi Sidharth Jha, BTech ECE, IIIT Delhi, and Saksham Gupta, BTech ECE, IIIT Delhi
Course: ECE270: Embedded Logic Design (ELD), IIIT Delhi
Complete playlist: • IIIT Delhi ECE270: Emb...

[@dakshthapar5221]

Best instructors of ELD at IIIT Delhi

[@matzik1775]

Hi,
Thanks for your explications !! However, there is one thing that I don't understand. Why must we send the data in the reverse order in the test bench (from 15 to 0) ?

[@spksv]

can you explain how the top_wrapper.v file changed from empty (time 4:10) to fully populated(time: 4:12)?

[@nashatali6030]

first he wrote the inputs , outputs of the module and wrote the wire data_fft, and wire out_fft
and then to instantiate the fft_ip inside the top wrapper,
1- he copied the instantiation template from the fft.veo file and pasted it inside the top wrapper,
2- then he changed the port map in this instantiation template and put the inputs, outputs and wires that are declared in this top wrapper to complete the instantiation of the fft_ip.

[@fatemeraei2369]

excuse me my simulation when reaches to 105 ns, stops and runs forever and I can not see the output data after 0 , I use vivado 2023, and for testbench my timing scale is 1 ns/ 1 ps. can you tell me what is the issue?

[@hassaanahmed2928]

I am facing same issue, did you find any solution?

[@joelroy663]

I have a doubt, I want to find the FFT of a matrix of say size 1000x64 (64 point FFT). Any sources which i can follow to create it? or is there source which has already done it?

[@dakshthapar5221]

ECE OGs of IIITD

[@NKODURISESHASAISRIRAMKUMAR]

Good evening sir
Can we implement this in HARDWARE BOARD like BASYS 3 FPGA....
can you give some clarification on this sir pls...

[@mujeevkhan7298]

How can we detect peak frequency in the output?

[@macaxeira82]

Greetings. Came across you video. Very helpful. One thing i don't understand is my out_data[31:0] is always Hi Z while yours is 0. My out_data never seems to change. my out_fft is just like yours and the code was also copied. any ideas?

[@pls_vhdl]

I have the same issue, did you find a solution ?

[@Somanath.k]

You need to change the variables that are passed into FFT IP test bench from "s_axis_config_tdata" to the variables you declared in top wrapper "config_data"
Same case for other variables

[@abdelghanibourenane4221]

can you share the wrapper file code, I think you missed elaborating on that!

[@jameswilliamson2405]

you can generate those with a click of a button