def _Generate_C(self, buildpath, locations):
current_location = self.GetCurrentLocation()
# define a unique name for the generated C file
location_str = "_".join(map(str, current_location))
Gen_Ethercatfile_path = os.path.join(buildpath,
"ethercat_%s.c" % location_str)
self.FileGenerator = _EthercatCFileGenerator(self)
LocationCFilesAndCFLAGS, LDFLAGS, extra_files = ConfigTreeNode._Generate_C(
self, buildpath, locations)
for idx, variable in enumerate(self.ProcessVariables.getvariable()):
name = None
var_type = None
read_from = variable.getReadFrom()
write_to = variable.getWriteTo()
if read_from is not None:
pos = read_from.getPosition()
index = read_from.getIndex()
subindex = read_from.getSubIndex()
location = current_location + (idx, )
var_type = self.GetSlaveVariableDataType(pos, index, subindex)
name = self.FileGenerator.DeclareVariable(
pos, index, subindex, var_type, "I",
self.GetProcessVariableName(location, var_type))
if write_to is not None:
pos = write_to.getPosition()
index = write_to.getIndex()
subindex = write_to.getSubIndex()
if name is None:
location = current_location + (idx, )
var_type = self.GetSlaveVariableDataType(
pos, index, subindex)
name = self.GetProcessVariableName(location, var_type)
self.FileGenerator.DeclareVariable(pos, index, subindex,
var_type, "Q", name, True)
self.FileGenerator.GenerateCFile(Gen_Ethercatfile_path, location_str,
self.BaseParams.getIEC_Channel())
LocationCFilesAndCFLAGS.insert(0, (current_location, [
(Gen_Ethercatfile_path,
'"-I%s"' % os.path.abspath(self.GetCTRoot().GetIECLibPath()))
], True))
LDFLAGS.append("-lethercat_rtdm -lrtdm")
return LocationCFilesAndCFLAGS, LDFLAGS, extra_files
