test42: Add sampling frequency counter test.

f343d7ee · Matthieu Cattin · 3131970d · f343d7ee
Commit f343d7ee authored Mar 28, 2014 by Matthieu Cattin
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test42.py test/fmcadc100m14b4cha/python/test42.py +100 -0

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--- a/test/fmcadc100m14b4cha/python/test42.py
+++ b/test/fmcadc100m14b4cha/python/test42.py
+#!   /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%02d 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: %6d Hz, diff: %6d 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%02d" % TEST_NB
+    print "================================================================================"
+    end_test_time = time.time()
+    print "Test%02d elapsed time: %.2f seconds\n" % (TEST_NB, end_test_time-start_test_time)
+
+
+if __name__ == '__main__' :
+    main()