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vendor.gowin: unbreak dir="o" pins with xdr=2.

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Catherine 2023-08-08 16:07:52 +00:00
parent 33139ac6cb
commit 49a56c4467
1 changed files with 17 additions and 5 deletions
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22
amaranth/vendor/gowin.py
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@ -412,16 +412,26 @@ class GowinPlatform(TemplatedPlatform):
o_Q1=q1[bit]
)
def get_oddr(clk,d0,d1,tx,q0,q1):
def get_oddr(clk,d0,d1,q):
for bit in range(len(q)):
m.submodules += Instance("ODDR",
p_TXCLK_POL=0, # default -> Q1 changes on posedge of CLK
i_CLK=clk,
i_D0=d0[bit],
i_D1=d1[bit],
o_Q0=q[bit]
)
def get_oeddr(clk,d0,d1,tx,q0,q1):
for bit in range(len(q0)):
m.submodules += Instance("ODDR",
p_TXCLK_POL=0, # default -> Q1 changes on posedge of CLK
i_CLK=clk,
i_D0=d0[bit],
i_D1=d1[bit],
i_TX=tx[bit],
i_TX=tx,
o_Q0=q0[bit],
o_Q1=q1[bit]
o_Q1=q1
)
def get_ineg(y, invert):
@ -480,8 +490,10 @@ class GowinPlatform(TemplatedPlatform):
elif pin.xdr == 2:
if "i" in pin.dir:
get_iddr(pin.i_clk, i, pin_i0, pin_i1)
if pin.dir in ("o", "oe", "io"):
get_oddr(pin.o_clk, pin_o0, pin_o1, ~pin_oe, o, t)
if pin.dir in ("o",):
get_oddr(pin.o_clk, pin_o0, pin_o1, o)
if pin.dir in ("oe", "io"):
get_oeddr(pin.o_clk, pin_o0, pin_o1, ~pin.oe, o, t)
else:
assert False