Version 1 (modified by 15 years ago) (diff) | ,
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SocLib Components General Index
FIR128
1) Functional Description
The FIR (Finite Impulse Response) is a basic building block in any Digital Processing (DSP) system. The frenquency response of the filter depends on the value of its coefficients, or taps. In our case, the tap number of the filter is equal to 128. The architecture of the FIR is presented in the figure 1. It is composed of a FIR128 core and a MWMR wrapper. The wrapper is used to interface the core and the MWMR controller avalaible here VciMwmrController.
2) Component definition & usage
Component definition
Usage
FIR128 has a fifo_depth parameter, which defines the fifo depth for the input and the output. For example with a FIFO depth equal to 16 :
Uses('Fir128', fifo_depth = 16);
3) CABA Implementation
CABA sources
- interface : source:trunk/soclib/soclib/module/ofdm_chain_components/fir128/caba/source/include/fir128.h
- implementation : source:trunk/soclib/soclib/module/ofdm_chain_components/fir128/caba/source/src/fir128.cpp
CABA Constructor parameters
Fir128( sc_module_name name, // Instance name int ncycles) // Number of computation cycles
CABA Ports
- sc_in<bool> p_resetn : hardware reset
- sc_in<bool> p_clk : clock
- soclib::caba::FifoOutput<uint32_t> p_to_ctrl : interface from the fir128 to the MWMR controller
- soclib::caba::FifoInput<uint32_t> p_from_ctrl : interface from the MWMR controller to the fir128
4) TLM-T Implementation
The TLM-T implementation is not yet available.
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