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Altera_Forum's avatar
Altera_Forum
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15 years ago

DMA & FIR Filter, some questions.

Hello everyone, I'd like to implement a FIR filter (because it's easy to start with) in DSPBuilder. It should make use of DMA. I finally want to integrate it into an NIOS II based system using ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

I'll keep that modular SGDMA design in mind, but for now I really want to be things as easy as possible. I also knew this Accelerated FIR Design, but because I'm rather unexperienced in HDL I wanted to do the same just in DSP Builder.

Can you give me any hints here?

For a simple proof of concept/workflow I made a DMA test model in Simulink which should do memory to memory transfers using these MM Master templates within HDL import blocks (finally integrating the fir in simulink shouldn't be a problem at all). But either I connected the blocks in a wrong way or I'm not using the right 'export' method out of simulink, because a short test within a small nios-driven system didn't work.

I'm at home now, but tomorrow I will attach the simulink model. For an experienced person it is probably quite obvious what might be wrong.

Regards,

Sebastian