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#!/usr/bin/env python
#
# Copyright 2010 Ettus Research LLC
#
# 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/>.
#
# Description:
# generates a list of inputs and outputs from the top-level Verilog file and cross-references them to the .ucf.
# outputs errors for pins that aren't found in the UCF, checks for capitalization errors and other common mistakes
import sys
import re
if __name__=='__main__':
if len(sys.argv) != 3:
print("Usage: {} <top level Verilog file> <pin definition UCF>".format(sys.argv[0]))
sys.exit(-1)
verilog_filename = sys.argv[1]
ucf_filename = sys.argv[2]
verilog_file = open(verilog_filename, 'r')
ucf_file = open(ucf_filename, 'r')
verilog_iolist = list()
ucf_iolist = list()
#read in all input, inout, and output declarations and compile a list
for line in verilog_file:
for match in re.findall(r"(?:input|inout|output) (?:reg )*(?:\[.*\] )*(\w+)", line.split("//")[0]):
verilog_iolist.append(match)
for line in ucf_file:
m = re.search(r"""NET "(\w+).*" """, line.split("#")[0])
if m is not None:
ucf_iolist.append(m.group(1))
#now find corresponding matches and error when you don't find one
#we search for .v defs without matching .ucf defs since the reverse isn't necessarily a problem
err = False
for item in verilog_iolist:
if item not in ucf_iolist:
print("Error: {} appears in the top-level Verilog file, but is not in the UCF definition file!".format(item))
err = True
if err:
sys.exit(-1)
print("No errors found.")
sys.exit(0)
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