Eval - ADAU1701MINIZ filter resolution
Hi,
I have created a 3 stages filterilter MATLAB
when I insert the parameters I get a different filter different filter
I tried to verify with another board of cypress there the filter looks the same as matlab
what is the reason, how many precision is possible with the Eval - ADAU1701MINIZ board(how many numbers after the .
an example of one of one of the stages of the filters b[n] an a[n] parameters
1.00000000000000000000
-0.00000000000000022204
-1.00000000000000020000
-1.94525619079764640000
0.94588126573724629000
please your help
Best,
Netti
To confirm that you are not getting issues with your implementation / how you enter the coefficients, did you try with lower precision ones?
Remeber the SigmaDSP is 28/56 bit fixed point DSP. Read the documentation.
I have tried too but it should work but what is the minimum precision?
Does the processor takes in to consideration the intern delay?
Best,
Lobo
I can't understand from the datasheet haw many numbers after the point is the precision I understand the precision is 8 numbers(2^-28) or 16 for 56 am I right jaac?
and I am not sure weather it takes in to consideration the internal delay
Best
Net
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EZ Admin
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