def _build_clock_constraints(self, platform):
platform.add_platform_command(_xdc_separator("Clock constraints"))
#for clk, period in sorted(self.clocks.items(), key=lambda x: x[0].duid):
# platform.add_platform_command(
# "create_clock -period " + str(period) +
# " {clk}", clk=clk)
pass #clock constraints not supported
def build_timing_constraints(self):
self.platform.add_platform_command(_xdc_separator("Clock constraints"))
for clk, period in sorted(self.clocks.items(), key=lambda x: x[0].duid):
self.platform.add_platform_command(
"create_clock -period " + str(period) +
" {clk}", clk=clk)
return ("", "")
def _build_pcf(named_sc):
r = _xdc_separator("Design constraints")
current_resname = ""
for sig, pins, _, resname in named_sc:
if current_resname != resname[0]:
if current_resname:
r += "\n"
current_resname = resname[0]
r += f"# {current_resname}\n"
if len(pins) > 1:
for i, p in enumerate(pins):
r += f"set_io {sig}[{i}] {Pins(p).identifiers[0]}\n"
elif pins:
r += f"set_io {sig} {Pins(pins[0]).identifiers[0]}\n"
return r