Reference Buffer¶

[1]:

%pylab inline
import numpy as np
from caf_verilog.reference_buffer import ReferenceBuffer

%pylab is deprecated, use %matplotlib inline and import the required libraries.
Populating the interactive namespace from numpy and matplotlib

[2]:

fs = 1
n = np.arange(0,10000)
x = np.exp(2*np.pi*0.15*n*1j)

[3]:

Px, ff = psd(x,2**10, fs)
plot(ff, 10*np.log10(Px))
ylim([-80, 25])
xlim([0, 0.2])

[3]:

(0.0, 0.2)

[4]:

rb = ReferenceBuffer(x[:100], name='tb_inst')

[5]:

rb.gen_tb()

[6]:

from caf_verilog.io_helper import read_complex_output
rb_output = read_complex_output(rb.test_output_filename)

[7]:

assert len(rb_output) == len(rb.buffer_quant)

[8]:

for sim_iq,py_iq in zip(rb_output, rb.buffer_quant):
    assert sim_iq == py_iq

CAF Verilog