A frame-based block takes an entire array of data as an input in one time step. This is not very hardware friendly; for hardware, you need to stream your data in one array element at a time. HDL Coder has a "HDL Streaming FFT" block and a "HDL FFT" block designed specifically for hardware implementation. You will need to modify your design to interface with one of these blocks. To access this block in R2013a:
>> hdllib
This library contains all blocks that support HDL code generation.
- Double-click on "HDL Demo Library".
- Choose the "HDL Streaming FFT" or "HDL FFT" block.
A more direct route to the block is to open the HDL Demo Library directly:
>> hdldemolib
