def test_faust_fx_generation():
path = os.path.join(here, 'lowpass.net') # Absolute path
netlist = Netlist(path) # Init Netlist with path to '.net' file
#print(netlist.netlist()) # print netlist content
graph = netlist.to_graph() # Build Graph object from netlist
core = graph.to_core() # perform graph analysis and produce `Core`object
#core.pprint() # show structure
core.M, core.J(), core.R()
core.reduce_z() # reduce linear dissipation functions in matrix R
#core.pprint() # show structure
core.M, core.J(), core.R()
pfc, C, R1 = core.symbols(['pfc', 'CCapa', 'R1']) # define some symbols
fref = 20
cutoff = fref * 10**(3 * pfc) # pfc in [0, 1] => cutoff in [2e1, 2e4]
rc = 1 / (2 * 3.14157 * cutoff * C) # resistance = 1/(2*pi*cutoff*C)
# 1 remplacer
core.subs[R1] = rc # substitute symbol R1 by expression rc
# 2 appliquer
core.substitute(selfexprs=True) # substitute symbols by expressions
core.R()
# 3 déclarer
core.add_parameters(pfc) # add pfc to the list of control parameters
# path to generated .dsp file
label = 'lowpass'
dsppath = os.path.join(here, label + '.dsp')
# Select inputs: list of constant values and input labels
# Here, we select input as 'uI' and set 'uO' to constant 0
inputs = (0., 'uI')
# Select outputs: list of outputs labels
outputs = ('yO', )
from pyphs import core2faustfx
core2faustfx(core, path=dsppath, inputs=inputs, outputs=outputs)
os.remove(dsppath)
return True
def test_faust_fx_generation():
path = os.path.join(here, 'lowpass.net') # Absolute path
netlist = Netlist(path) # Init Netlist with path to '.net' file
#print(netlist.netlist()) # print netlist content
graph = netlist.to_graph() # Build Graph object from netlist
core = graph.to_core() # perform graph analysis and produce `Core`object
#core.pprint() # show structure
core.M, core.J(), core.R()
core.reduce_z() # reduce linear dissipation functions in matrix R
#core.pprint() # show structure
core.M, core.J(), core.R()
pfc, C, R1 = core.symbols(['pfc', 'CCapa', 'R1']) # define some symbols
fref = 20
cutoff = fref*10**(3*pfc) # pfc in [0, 1] => cutoff in [2e1, 2e4]
rc = 1/(2*3.14157*cutoff*C) # resistance = 1/(2*pi*cutoff*C)
# 1 remplacer
core.subs[R1] = rc # substitute symbol R1 by expression rc
# 2 appliquer
core.substitute(selfexprs=True) # substitute symbols by expressions
core.R()
# 3 déclarer
core.add_parameters(pfc) # add pfc to the list of control parameters
# path to generated .dsp file
label = 'lowpass'
dsppath = os.path.join(here, label+'.dsp')
# Select inputs: list of constant values and input labels
# Here, we select input as 'uI' and set 'uO' to constant 0
inputs = (0., 'uI')
# Select outputs: list of outputs labels
outputs = ('yO', )
from pyphs import core2faustfx
core2faustfx(core, path=dsppath, inputs=inputs, outputs=outputs)
os.remove(dsppath)
return True
@author: afalaize
"""
from __future__ import absolute_import, division, print_function
import os
from pyphs import Netlist
import matplotlib.pyplot as plt
plt.close('all')
# netlist is "{label}.net"
label = 'sp_circuit'
# get folder path
path = os.path.realpath(__file__)[:os.path.realpath(__file__).rfind(os.sep)]
# def filename
netlist_filename = os.path.join(path, '{0}.net'.format(label))
# read in Netlist object
netlist = Netlist(netlist_filename)
# Build Graph object
graph = netlist.to_graph()
graph.sp_split()
# Build Core object
core = graph.to_core(merge_all=True)