def get_wave(filename):
vcd_filename = __get_vcd_filename__('%s.vvp' % filename[0:-2])
ftp_utils.download_file_to_tmp(vcd_filename)
vcd = parse_vcd("./tmp/%s" % vcd_filename)
units = get_timescale()
i = 0
time = 0
endtime = get_endtime()
data = {
'file': vcd_filename,
'scale': units,
'endtime': endtime,
'signals': []
}
for key, value in vcd.iteritems():
name = value['nets'][0]['hier'] + "." + value['nets'][0]['name']
size = value['nets'][0]['size']
data['signals'].append({'name': name, 'size': size, 'wave': []})
time = 0
for item in value['tv']:
wavestruct = []
val = item[1]
wavestruct.append(item[0])
if val.find('z') > -1:
wavestruct.append('z')
elif val.find('x') > -1:
wavestruct.append('x')
else:
wavestruct.append(val)
data['signals'][i]['wave'].append(wavestruct)
i += 1
return data
def get_wave(filename):
vcd_filename = __get_vcd_filename__('%s.vvp' % filename[0:-2])
ftp_utils.download_file_to_tmp(vcd_filename)
vcd = parse_vcd("./tmp/%s" % vcd_filename)
units = get_timescale()
i = 0
time = 0
endtime = get_endtime()
data = {'file': vcd_filename, 'scale': units, 'endtime': endtime, 'signals': []}
for key, value in vcd.iteritems():
name = value['nets'][0]['hier'] + "." + value['nets'][0]['name']
size = value['nets'][0]['size']
data['signals'].append({'name': name, 'size': size, 'wave': []})
time = 0
for item in value['tv']:
wavestruct = []
val = item[1]
wavestruct.append(item[0])
if val.find('z') > -1:
wavestruct.append('z')
elif val.find('x') > -1:
wavestruct.append('x')
else:
wavestruct.append(val)
data['signals'][i]['wave'].append(wavestruct)
i += 1
return data
def __get_vcd_filename__(filename):
ftp_utils.download_file_to_tmp(filename)
verilog_file_data = open("./tmp/%s" % filename, 'r').read()
try:
vcd_file_name = verilog_file_data.split('"$dumpfile"')[1].split('"')[1]
except IndexError:
vcd_file_name = None
return vcd_file_name
def check_for_errors(filename):
ftp_utils.download_file_to_tmp(filename)
p = subprocess.Popen(["verilator --lint-only ./tmp/%s" % filename],
stdout=subprocess.PIPE,
shell=True,
stderr=subprocess.STDOUT)
data, err = p.communicate()
return __format_errors__(data)
def __get_vcd_filename__(filename):
ftp_utils.download_file_to_tmp(filename)
verilog_file_data = open("./tmp/%s" % filename, 'r').read()
try:
vcd_file_name = verilog_file_data.split('"$dumpfile"')[1].split('"')[1]
except IndexError:
vcd_file_name = None
return vcd_file_name
def check_for_errors(filename):
ftp_utils.download_file_to_tmp(filename)
p = subprocess.Popen(
["verilator --lint-only ./tmp/%s" % filename],
stdout=subprocess.PIPE,
shell=True,
stderr=subprocess.STDOUT
)
data, err = p.communicate()
return __format_errors__(data)
def __check_if_dumps_vcd_correctly__(filename):
ftp_utils.download_file_to_tmp(filename)
vcd_name = __get_vcd_filename__(filename)
if vcd_name != None:
if vcd_name.find("./tmp/") < 0:
file_instance = open('./tmp/%s' % filename, 'r+')
data = file_instance.read()
data = data.replace('"$dumpfile", "', '"$dumpfile", "./tmp/', 1)
file_instance.seek(0)
file_instance.write(data)
file_instance.close()
ftp_utils.upload_file_from_tmp(filename)
def __check_if_dumps_vcd_correctly__(filename):
ftp_utils.download_file_to_tmp(filename)
vcd_name = __get_vcd_filename__(filename)
if vcd_name != None:
if vcd_name.find("./tmp/") < 0:
file_instance = open('./tmp/%s' % filename, 'r+')
data = file_instance.read()
data = data.replace('"$dumpfile", "', '"$dumpfile", "./tmp/', 1)
file_instance.seek(0)
file_instance.write(data)
file_instance.close()
ftp_utils.upload_file_from_tmp(filename)
def get_output(filename):
vvp_filename = '%s.vvp' % filename[0:-2]
__check_if_dumps_vcd_correctly__(vvp_filename)
ftp_utils.download_file_to_tmp(vvp_filename)
c = 'vvp ./tmp/%s' % vvp_filename
p = subprocess.Popen([c],
stdout=subprocess.PIPE,
shell=True,
stderr=subprocess.STDOUT)
data, err = p.communicate()
__upload_dump_files__(vvp_filename)
return data.split('\n')
def get_output(filename):
vvp_filename = '%s.vvp' % filename[0:-2]
__check_if_dumps_vcd_correctly__(vvp_filename)
ftp_utils.download_file_to_tmp(vvp_filename)
c = 'vvp ./tmp/%s' % vvp_filename
p = subprocess.Popen(
[c],
stdout=subprocess.PIPE,
shell=True,
stderr=subprocess.STDOUT
)
data, err = p.communicate()
__upload_dump_files__(vvp_filename)
return data.split('\n')
def compile_to_vvp(filename, filename_test):
ftp_utils.download_file_to_tmp(filename)
ftp_utils.download_file_to_tmp(filename_test)
c = 'iverilog -o ./tmp/%s.vvp ./tmp/%s ./tmp/%s' % (
filename[0:-2], filename, filename_test)
p = subprocess.Popen([c],
stdout=subprocess.PIPE,
shell=True,
stderr=subprocess.STDOUT)
data, err = p.communicate()
if __format_error__(data) != []:
return __format_error__(data)
else:
ftp_utils.upload_file_from_tmp('%s.vvp' % filename[0:-2])
def compile_to_vvp(filename, filename_test):
ftp_utils.download_file_to_tmp(filename)
ftp_utils.download_file_to_tmp(filename_test)
c = 'iverilog -o ./tmp/%s.vvp ./tmp/%s ./tmp/%s' % (filename[0:-2], filename, filename_test)
p = subprocess.Popen(
[c],
stdout=subprocess.PIPE,
shell=True,
stderr=subprocess.STDOUT
)
data, err = p.communicate()
if __format_error__(data) != []:
return __format_error__(data)
else:
ftp_utils.upload_file_from_tmp('%s.vvp' % filename[0:-2])
def generate_testbench(filename):
ftp_utils.download_file_to_tmp(filename)
module = open('./tmp/%s' % filename, 'r').read()
out = ""
modname = get_module_name(module)
tbmodname = modname + "_tb"
period = 3
timescale = get_timescale(module)
out += "// Automatically Generated Testbench for module " + modname + "\n"
out += "// Generated on \n"
out += "`timescale " + timescale + "\n \n"
out += "module " + tbmodname + "; \n \n"
regs = get_regs(module)
wires = get_wires(module)
clk = "clk" if "clk" in wires else ""
rst = "rst" if "rst" in wires else ""
for i in regs:
out += "reg " + i + "; \n"
for i in wires:
out += "wire " + i + "; \n"
out += "\n"
out += modname + " DUT ( "
for i in regs:
out += "." + i + "(" + i + ")"
out += ", "
for i in wires:
out += "." + i + "(" + i + ")"
if i != wires[-1]:
out += ", "
out += " ); \n \n"
out += "initial begin \n"
out += "$dumpfile (" + '"' + tbmodname + ".vcd" + '"' + "); \n"
out += "$dumpvars (1, " + tbmodname + "); \n"
out += "#1000 $finish; \n"
out += "end\n \n"
if clk != "":
out += "// Clock Generator \n"
out += "initial " + clk + " = 0; \n"
out += "always #" + str(period/2.0) + " " + clk + " = ~" + clk + "; \n \n"
out += "// Reset generator goes here, change to match your design \n"
out += "initial begin \n"
if clk != "":
out += rst + " = 0; \n"
out += "@ (negedge clk); \n"
out += rst + " = 1; \n"
else:
out += "// Write your test case here \n"
out += "end\n \n"
out += "endmodule\n"
testbench_file = open('./tmp/%s_tb.v' % filename[0:-2], 'w')
testbench_file.write(out)
testbench_file.close()
ftp_utils.upload_file_from_tmp('%s_tb.v' % filename[0:-2])
return out