EVM430-FR6043: How to configure Band-Pass filter in EVM430-FR6043

Hi Koki,

For the first question,

1. define USS_ALG_FILT_IS_FILTER_ENABLED to true

2. Check the USS_ALG_FILT_OPTION, if the USS_ALG_FILT_OPTION is 4. You need to generate your own filter coefficient in USS_SW_LIB_APP_FILTER_COFFICIENTS /* USS_filterCoeffs_Custom*/

3. Generate your own filter coffs in MATLAB.

For example,

 N = 18;

 Fs = 3400000;

 Fstop1 = 600000;

 Fpass1 = 800000;

 Fpass2 = 1200000;

 Fstop2 = 1400000;

 Wstop1 = 1;

 Wpass = 10;

 Wstop2 = 1;

 filterCoeffs = [firpm(N,[0 Fstop1 Fpass1 Fpass2 Fstop2 Fs/2]/(Fs/2), [0 0 1 1 0 0],[Wstop1 Wpass Wstop2]) 0];

For the second question, we do not have plan to disclose the USS library now.

Best regards,

Cash Hao

Hi, Cash Hao

> 3. Generate your own filter coffs in MATLAB.

Currently, I'm trying to get parameters on the MathWorks firpm design site.

Specifically, what steps do I need to take?

Thanks,

Koki

Hi Koki,

Just follow the example code I sent on the early reply. Define your own Fs, Fpass and Fstop. And I think it is not necessary to change the N.

Best regards,

Cash Hao

Hi, Cash Hao

I've roughly figured out what to set when using Firpm, but I'm not sure how to make it the 20 parameters to pass to the USS SW Library.

Thanks,

Koki

Hi Koki,

I do not get it. What is the 20 parameters you mean?

Best regards,

Cash Hao

Hi, Cash Hao

I am trying to get parameters on the MathWorks firpm design site.

Could you tell me the specific procedure in Matlab?

Currently, I am referring to the following URL Q16.

https://www.ti.com/lit/an/slaa837a/slaa837a.pdf

Thanks,

Koki