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Use PIN_INPUT mode in LatticeiCE40SDROutputImpl because i_INPUT_CLK is not connected.

This commit is contained in:
William D. Jones 2021-10-21 12:11:52 -04:00
parent 57002cf3fc
commit 140e4586ab
1 changed files with 4 additions and 1 deletions
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5
litex/build/lattice/common.py
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@ -446,7 +446,10 @@ class LatticeiCE40DDRInput:
class LatticeiCE40SDROutputImpl(Module): class LatticeiCE40SDROutputImpl(Module):
def __init__(self, i, o, clk): def __init__(self, i, o, clk):
self.specials += Instance("SB_IO", self.specials += Instance("SB_IO",
p_PIN_TYPE = C(0b010100, 6), # PIN_OUTPUT_REGISTERED # i_INPUT_CLK must match between two SB_IOs in the same tile.
# In PIN_INPUT mode, this restriction is relaxed; an unconnected
# i_INPUT_CLK also works.
p_PIN_TYPE = C(0b010101, 6), # PIN_OUTPUT_REGISTERED + PIN_INPUT
p_IO_STANDARD = "SB_LVCMOS", p_IO_STANDARD = "SB_LVCMOS",
io_PACKAGE_PIN = o, io_PACKAGE_PIN = o,
i_CLOCK_ENABLE = 1, i_CLOCK_ENABLE = 1,