From f51ad436070ced9c98f7ec050146e30ebeb6f40e Mon Sep 17 00:00:00 2001 From: Florent Kermarrec Date: Thu, 7 Feb 2019 16:23:55 +0100 Subject: [PATCH] build/lattice/common: add LatticeiCE40DDROutput --- litex/build/lattice/common.py | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/litex/build/lattice/common.py b/litex/build/lattice/common.py index e807bb60..45baddb8 100644 --- a/litex/build/lattice/common.py +++ b/litex/build/lattice/common.py @@ -135,8 +135,29 @@ class LatticeiCE40DifferentialOutput: def lower(dr): return LatticeiCE40DifferentialOutputImpl(dr.i, dr.o_p, dr.o_n) + +class LatticeiCE40DDROutputImpl(Module): + def __init__(self, i1, i2, o, clk): + self.specials += Instance("SB_IO", + p_PIN_TYPE=C(0b010000, 6), + p_IO_STANDARD="SB_LVCMOS", + io_PACKAGE_PIN=o, + i_CLOCK_ENABLE=1, + i_OUTPUT_CLK=clk, + i_OUTPUT_ENABLE=1, + i_D_OUT_0=i1, + i_D_OUT_1=i2) + + +class LatticeiCE40DDROutput: + @staticmethod + def lower(dr): + return LatticeiCE40DDROutputImpl(dr.i1, dr.i2, dr.o, dr.clk) + + lattice_ice40_special_overrides = { AsyncResetSynchronizer: LatticeiCE40AsyncResetSynchronizer, Tristate: LatticeiCE40Tristate, - DifferentialOutput: LatticeiCE40DifferentialOutput + DifferentialOutput: LatticeiCE40DifferentialOutput, + DDROutput: LatticeiCE40DDROutput } -- 2.30.2