27 lines
970 B
Python
27 lines
970 B
Python
from migen.build.generic_platform import GenericPlatform
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from migen.build.lattice import common, diamond
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class LatticePlatform(GenericPlatform):
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bitstream_ext = ".bit"
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def __init__(self, *args, toolchain="diamond", **kwargs):
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GenericPlatform.__init__(self, *args, **kwargs)
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if toolchain == "diamond":
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self.toolchain = diamond.LatticeDiamondToolchain()
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else:
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raise ValueError("Unknown toolchain")
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def get_verilog(self, *args, special_overrides=dict(), **kwargs):
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so = dict(common.lattice_special_overrides)
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so.update(special_overrides)
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return GenericPlatform.get_verilog(self, *args, special_overrides=so, **kwargs)
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def build(self, *args, **kwargs):
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return self.toolchain.build(self, *args, **kwargs)
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def add_period_constraint(self, clk, period):
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if hasattr(clk, "p"):
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clk = clk.p
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self.toolchain.add_period_constraint(self, clk, period)
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