The main differences between fft and dsphdl.FFT in MATLAB are:
Context:
- fft: General-purpose function for computing the FFT in software.
- dsphdl.FFT: Designed for generating HDL code for FPGA/ASIC implementations, optimized for hardware.
Implementation:
- fft: Uses optimized algorithms for software execution, supporting various data types.
- dsphdl.FFT: Employs hardware-friendly architectures like Streaming Radix 2^2 and Burst Radix 2, managing resources and latency for hardware execution.
Customization:
- fft: Straightforward use without much control over internal processes.
- dsphdl.FFT: Offers extensive control signals and configuration options for synchronization and data flow in hardware systems.
Data Handling:
- fft: Processes data directly, assuming it fits in memory.
- dsphdl.FFT: Handles streaming data and vectorized inputs, optimized for real-time hardware processing.
Performance:
