30 lines
630 B
Python
30 lines
630 B
Python
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from migen import *
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from migen.build.generic_platform import *
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def _eem_signal(i):
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n = "d{}".format(i)
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if i == 0:
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n += "_cc"
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return n
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def _eem_pin(eem, i, pol):
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return "eem{}:{}_{}".format(eem, _eem_signal(i), pol)
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def default_iostandard(eem):
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return IOStandard("LVDS_25")
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def diff_io(eem, iostandard=default_iostandard):
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return [("dio{}".format(eem), i,
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Subsignal("p", Pins(_eem_pin(eem, i, "p"))),
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Subsignal("n", Pins(_eem_pin(eem, i, "n"))),
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iostandard(eem))
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for i in range(8)]
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def generate_pads(platform, eem):
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platform.add_extension(diff_io(eem))
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