96 lines
3.5 KiB
Python
96 lines
3.5 KiB
Python
# This file is Copyright (c) 2013 Florent Kermarrec <florent@enjoy-digital.fr>
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# License: BSD
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import os, subprocess
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from migen.fhdl.structure import _Fragment
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from mibuild.generic_platform import *
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from mibuild import tools
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def _format_constraint(c):
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if isinstance(c, Pins):
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return "set_location_assignment PIN_" + c.identifiers[0]
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elif isinstance(c, IOStandard):
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return "set_instance_assignment -name IO_STANDARD " + "\"" + c.name + "\""
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elif isinstance(c, Misc):
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return c.misc
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def _format_qsf(signame, pin, others, resname):
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fmt_c = [_format_constraint(c) for c in ([Pins(pin)] + others)]
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fmt_r = resname[0] + ":" + str(resname[1])
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if resname[2] is not None:
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fmt_r += "." + resname[2]
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r = ""
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for c in fmt_c:
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r += c + " -to " + signame + " # " + fmt_r + "\n"
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return r
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def _build_qsf(named_sc, named_pc):
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r = ""
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for sig, pins, others, resname in named_sc:
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if len(pins) > 1:
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for i, p in enumerate(pins):
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r += _format_qsf(sig + "[" + str(i) + "]", p, others, resname)
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else:
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r += _format_qsf(sig, pins[0], others, resname)
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if named_pc:
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r += "\n" + "\n\n".join(named_pc)
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r += "set_global_assignment -name top_level_entity top\n"
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return r
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def _build_files(device, sources, vincpaths, named_sc, named_pc, build_name):
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qsf_contents = ""
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for filename, language in sources:
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# Enforce use of SystemVerilog (Quartus does not support global parameters in Verilog)
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if language == "verilog":
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language = "systemverilog"
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qsf_contents += "set_global_assignment -name "+language.upper()+"_FILE " + filename.replace("\\","/") + "\n"
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for path in vincpaths:
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qsf_contents += "set_global_assignment -name SEARCH_PATH " + path.replace("\\","/") + "\n"
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qsf_contents += _build_qsf(named_sc, named_pc)
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qsf_contents += "set_global_assignment -name DEVICE " + device
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tools.write_to_file(build_name + ".qsf", qsf_contents)
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def _run_quartus(build_name, quartus_path):
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build_script_contents = """# Autogenerated by mibuild
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quartus_map --read_settings_files=on --write_settings_files=off {build_name} -c {build_name}
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quartus_fit --read_settings_files=off --write_settings_files=off {build_name} -c {build_name}
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quartus_asm --read_settings_files=off --write_settings_files=off {build_name} -c {build_name}
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quartus_sta {build_name} -c {build_name}
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""".format(build_name=build_name)
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build_script_file = "build_" + build_name + ".sh"
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tools.write_to_file(build_script_file, build_script_contents, force_unix=True)
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r = subprocess.call(["bash", build_script_file])
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if r != 0:
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raise OSError("Subprocess failed")
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class AlteraQuartusPlatform(GenericPlatform):
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bitstream_ext = ".sof"
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def build(self, fragment, build_dir="build", build_name="top",
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quartus_path="/opt/Altera", run=True):
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tools.mkdir_noerror(build_dir)
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os.chdir(build_dir)
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if not isinstance(fragment, _Fragment):
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fragment = fragment.get_fragment()
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self.finalize(fragment)
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v_src, named_sc, named_pc = self.get_verilog(fragment)
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v_file = build_name + ".v"
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tools.write_to_file(v_file, v_src)
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sources = self.sources + [(v_file, "verilog")]
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_build_files(self.device, sources, self.verilog_include_paths, named_sc, named_pc, build_name)
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if run:
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_run_quartus(build_name, quartus_path)
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os.chdir("..")
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def add_period_constraint(self, clk, period):
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self.add_platform_command("""set_global_assignment -name DUTY_CYCLE 50 -section_id {clk}""", clk=clk)
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self.add_platform_command("""set_global_assignment -name FMAX_REQUIREMENT "{freq} MHz" -section_id {clk}\n""".format(freq=str(float(1/period)*1000), clk="{clk}"), clk=clk)
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