DSP Tools

[robotiker007]

Finally I solve the problem, the solution is a bit extrange, I'll explain it if someone is interested.

Thank you very much for the suport.

[vlavruhin]

Please add your solution and mark thread as solved. Maybe somebody will find this information useful in case of having same issues.

[robotiker007 · Accepted solution]

At the end I solved the problem, as you can see in the picture attached bellow.

For the down sampling there are not problems at all. You have to choose decimation in the dialog box of the FIR COMPILER 5 with distributed arithmetic, the problem appears when you try to up sample the design, in this case if you try to check the upsampler dialog box, it is not working at all, you have to work in single rate and change the oversampling specification, as you can see in the attached information.

At the end you will reach to the solution.

Thanks for the support

[vlavruhin]

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robotiker007 wrote:

the problem appears when you try to up sample the design, in this case if you try to check the upsampler dialog box, it is not working at all

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It should work. I will try to build model later...

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At the end I solved the problem, as you can see in the picture attached bellow.

you have to work in single rate and change the oversampling specification, as you can see in the attached information.

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Well, it will work this way. But it requires times K resources in case of upsampling factor = K (because single rate filter will do multiplications by all coefficients for each output sample).