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FMC ADC 100M 14b 4cha - Testing
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FMC ADC 100M 14b 4cha - Testing
Commits
f343d7ee
Commit
f343d7ee
authored
Mar 28, 2014
by
Matthieu Cattin
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test42: Add sampling frequency counter test.
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f343d7ee
#! /usr/bin/env python
# coding: utf8
# Copyright CERN, 2011
# Author: Matthieu Cattin <matthieu.cattin@cern.ch>
# Licence: GPL v2 or later.
# Website: http://www.ohwr.org
# Last modifications: 30/5/2012
# Import system modules
import
sys
import
time
import
os
# Add common modules and libraries location to path
sys
.
path
.
append
(
'../../../'
)
sys
.
path
.
append
(
'../../../gnurabbit/python/'
)
sys
.
path
.
append
(
'../../../common/'
)
# Import common modules
from
ptsexcept
import
*
import
rr
# Import specific modules
from
fmc_adc_spec
import
*
from
fmc_adc
import
*
from
numpy
import
*
from
pylab
import
*
"""
test42: Tests sampling frequency counter
"""
def
main
(
default_directory
=
'.'
):
# Constants declaration
TEST_NB
=
42
FMC_ADC_BITSTREAM
=
'../firmwares/spec_fmcadc100m14b4cha.bin'
FMC_ADC_BITSTREAM
=
os
.
path
.
join
(
default_directory
,
FMC_ADC_BITSTREAM
)
EXPECTED_BITSTREAM_TYPE
=
0x1
start_test_time
=
time
.
time
()
print
"================================================================================"
print
"Test
%02
d start
\n
"
%
TEST_NB
# SPEC object declaration
print
"Loading hardware access library and opening device.
\n
"
spec
=
rr
.
Gennum
()
# Load FMC ADC firmware
#print "Loading FMC ADC firmware: %s\n" % FMC_ADC_BITSTREAM
#spec.load_firmware(FMC_ADC_BITSTREAM)
#time.sleep(2)
# Carrier object declaration (SPEC board specific part)
# Used to check that the firmware is loaded.
try
:
carrier
=
CFmcAdc100mSpec
(
spec
,
EXPECTED_BITSTREAM_TYPE
)
except
FmcAdc100mSpecOperationError
as
e
:
raise
PtsCritical
(
"Carrier init failed, test stopped:
%
s"
%
e
)
carrier
.
print_unique_id
()
carrier
.
print_temp
()
# Mezzanine object declaration (FmcAdc100m14b4cha board specific part)
try
:
fmc
=
CFmcAdc100m
(
spec
)
except
FmcAdc100mOperationError
as
e
:
raise
PtsCritical
(
"Mezzanine init failed, test stopped:
%
s"
%
e
)
try
:
expect_samp_freq
=
100E6
samp_freqs
=
[]
for
i
in
range
(
20
):
time
.
sleep
(
2
)
samp_freq
=
fmc
.
get_samp_freq
()
samp_freqs
.
append
(
samp_freq
)
diff
=
abs
(
samp_freq
-
expect_samp_freq
)
print
(
"Sampling frequency:
%6
d Hz, diff:
%6
d Hz"
%
(
samp_freq
,
diff
))
freq_mean
=
mean
(
samp_freqs
)
freq_dev
=
std
(
samp_freqs
)
print
(
"Measured sampling frequency, mean:
%
f std_dev:
%
f"
%
(
freq_mean
,
freq_dev
))
except
(
FmcAdc100mSpecOperationError
,
FmcAdc100mOperationError
)
as
e
:
raise
PtsError
(
"Test failed:
%
s"
%
e
)
print
""
print
"==> End of test
%02
d"
%
TEST_NB
print
"================================================================================"
end_test_time
=
time
.
time
()
print
"Test
%02
d elapsed time:
%.2
f seconds
\n
"
%
(
TEST_NB
,
end_test_time
-
start_test_time
)
if
__name__
==
'__main__'
:
main
()
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