DSP Tools

[halunke86]

Hello,

I want to implement the translate function of CORDIC algorithm. I created a simple testbench with sinus and cosinus input signals and expected a (more-or-less) constant magnitude output.

I attached my simulation results and hope that somebody can give me a hint what i'm doing wrong.

Thx for your help

Benny

[halunke86]

Sorry, forgot the result:

[thomas1974]

What is the meaing of chopping the signal by interrupting enable? Does the behavior stay the same when using const enable?

Did you use any time scaling / sampling or saturation for the ports?

Can you observe the same output which the wave window on FPGA signal level?

[halunke86 · Accepted solution]

In the meantime I found out my problem: I forgot to set "coarse rotation", so only the first quadrant was considered. 

 Benny