Version 1 (modified by 15 years ago) (diff) | ,
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SocLib Components General Index
Upsampling
1) Functional Description
The upsampling operation consists in adding zeros between the inputs (i.e. the OFDM symbols in our case). In our system, the upsampling factor is 4. This means that we add 3 zeros between each input. The architecture of the upsampling component is presented in the figure 1. It is composed of a upsampling 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
Upsampling 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('Upsampling', fifo_depth = 16);
3) CABA Implementation
CABA sources
- interface : source:trunk/soclib/soclib/module/ofdm_chain_components/upsampling/caba/source/include/upsampling.h
- implementation : source:trunk/soclib/soclib/module/ofdm_chain_components/upsampling/caba/source/src/upsampling.cpp
CABA Constructor parameters
Upsampling( 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 upsampling to the MWMR controller
- soclib::caba::FifoInput<uint32_t> p_from_ctrl : interface from the MWMR controller to the upsampling
4) TLM-T Implementation
The TLM-T implementation is not yet available.
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