initial commit

applications/stagiair/libraries/wave_gen/tb/python/tc_wave_gen.py

+#! /usr/bin/env python
+###############################################################################
+#
+# Copyright (C) 2012
+# ASTRON (Netherlands Institute for Radio Astronomy) <http://www.astron.nl/>
+# P.O.Box 2, 7990 AA Dwingeloo, The Netherlands
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+###############################################################################
+
+"""Test case for the bf_unit entity.
+
+   Description:
+
+   This testcase is used in conjunction with the tb_bf_unit.vhd file.
+
+   Generics for the VHDL testbench are passed to modelsim to configure the
+   current simulation.
+   To observe the VHDL signals in the wave window modelsim needs to be
+   started manually and then c_start_modelsim must be set to 0 and the generics
+   also must be set manually.
+
+   NOTE: Use c_write_bg, c_write_bf_weights and c_write_bf_ss_wide to en- or disable 
+   the time-consuming writes to the mm-interface. WHen disabled, be sure to
+   have the according .hex files in place. The .hex files can be generated 
+   with the bf_unit.py script. 
+   
+   BEWARE: If the hex files change due to different script settings, then it is
+   necessary to run the script again to ensure that Modelsim starts with the
+   latest hex files.
+   
+   Usage:
+
+   > python tc_bf_unit.py --unb 0 --fn 0 --sim 
+
+"""
+
+###############################################################################
+# System imports
+import test_case
+import node_io
+import sys
+import pi_diag_data_buffer
+import pi_stagiair_wave_gen
+from tools import *
+from common import *  
+import csv
+import cmath
+###############################################################################
+
+# Debug control
+c_debug_print = False 
+
+# Create a test case object
+tc = test_case.Testcase('TB - ', '')
+
+tc.append_log(3, '>>>')
+tc.append_log(1, '>>> Title : Test bench for wave_gen' )
+tc.append_log(3, '>>>')
+tc.append_log(3, '')
+tc.set_result('PASSED')
+
+###############################################################################
+
+c_size = 2048
+c_filename = 'values.csv'
+# Create access object for nodes
+io = node_io.NodeIO(tc.nodeImages, tc.base_ip)
+
+
+# Create databuffer instances
+db = pi_diag_data_buffer.PiDiagDataBuffer(tc, io, instanceName = '', nofStreams=1, ramSizePerStream=c_size)
+
+wg = pi_stagiair_wave_gen.PiWaveGen(tc, io, nof_inst=1)
+
+
+def listToCsv(fileName = 'default.csv', overwrite = False, value_list = []):
+    header = None
+    if overwrite:
+        ofile = open(fileName, "w")
+        header = ['real', 'imag', 'abs', 'phase']                
+    else:
+        ofile  = open(fileName, "a")
+    writer = csv.writer(ofile, delimiter=',', quoting=csv.QUOTE_NONE)
+    if not header == None:
+        writer.writerow(header)
+        
+    for value in value_list:
+        if type(value) == complex:
+            row_list = [value.real, value.imag, abs(value), cmath.phase(value)]      
+        else:
+            row_list = [value]
+        writer.writerow(row_list)
+
+
+
+
+if __name__ == "__main__":      
+
+    wg.write(registers=[('gain_sel', 16)])
+    wg.write(registers=[('wave_sel', 0)])   
+    wg.write(registers=[('enable', 1)])     
+
+    do_until_ge(db.read_nof_words, ms_retry=1000, val=c_size, s_timeout=3600)
+    wg.write(registers=[('enable', 0)])
+    val_list = flatten(db.read_data_buffer(streamNr=0, n=c_size, radix='dec', width=8, nofColumns=1))
+    listToCsv(fileName = c_filename, overwrite = True, value_list = val_list)
+    
+    for i in range(1,5):
+    		wg.write(registers=[('wave_sel', i)])
+    		wg.write(registers=[('enable', 1)])    
+    		do_until_ge(db.read_nof_words, ms_retry=1000, val=c_size, s_timeout=3600)    
+    		wg.write(registers=[('enable', 0)])
+    		val_list = flatten(db.read_data_buffer(streamNr=0, n=c_size, radix='dec', width=8, nofColumns=1))   
+    		listToCsv(fileName = c_filename, overwrite = False, value_list = val_list)
+    
+    
+    
+    ###############################################################################
+    # End
+    tc.set_section_id('')
+    tc.append_log(3, '')
+    tc.append_log(3, '>>>')
+    tc.append_log(0, '>>> Test bench result: %s' % tc.get_result())
+    tc.append_log(3, '>>>')
+    
+    sys.exit(tc.get_result())