usb-tools/amaranth
1
0
Fork 0
Code Issues Pull requests Actions Packages Projects Releases Wiki Activity

vendor._intel: use dff instead of $dff.

Browse source 
Fixes #1046.
This commit is contained in:
Wanda 2024-02-13 06:57:22 +01:00 committed by Catherine
parent 3867623727
commit a0c8b18546
1 changed files with 26 additions and 21 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

47
amaranth/vendor/_intel.py
View file

@ -312,13 +312,15 @@ class IntelPlatform(TemplatedPlatform):
return get_ineg(pin.i)
elif pin.xdr == 1:
i_sdr = Signal(pin.width, name="{}_i_sdr")
m.submodules += Instance("$dff",
p_CLK_POLARITY=1,
p_WIDTH=pin.width,
i_CLK=pin.i_clk,
i_D=i_sdr,
o_Q=get_ineg(pin.i),
)
i_neg = get_ineg(pin.i)
for bit in range(pin.width):
m.submodules += Instance("dff",
i_clk=pin.i_clk,
i_d=i_sdr[bit],
o_q=i_neg[bit],
o_clrn=Const(1),
o_prn=Const(1),
)
return i_sdr
elif pin.xdr == 2:
i_ddr = Signal(pin.width, name=f"{pin.name}_i_ddr")
@ -346,13 +348,15 @@ class IntelPlatform(TemplatedPlatform):
return get_oneg(pin.o)
elif pin.xdr == 1:
o_sdr = Signal(pin.width, name=f"{pin.name}_o_sdr")
m.submodules += Instance("$dff",
p_CLK_POLARITY=1,
p_WIDTH=pin.width,
i_CLK=pin.o_clk,
i_D=get_oneg(pin.o),
o_Q=o_sdr,
)
for bit in range(pin.width):
o_neg = get_oneg(pin.o)
m.submodules += Instance("dff",
i_clk=pin.o_clk,
i_d=o_neg[bit],
o_q=o_sdr[bit],
o_clrn=Const(1),
o_prn=Const(1),
)
return o_sdr
elif pin.xdr == 2:
o_ddr = Signal(pin.width, name=f"{pin.name}_o_ddr")
@ -374,13 +378,14 @@ class IntelPlatform(TemplatedPlatform):
elif pin.xdr in (1, 2):
oe_reg = Signal(pin.width, name=f"{pin.name}_oe_reg")
oe_reg.attrs["useioff"] = "1"
m.submodules += Instance("$dff",
p_CLK_POLARITY=1,
p_WIDTH=pin.width,
i_CLK=pin.o_clk,
i_D=pin.oe,
o_Q=oe_reg,
)
for bit in range(pin.width):
m.submodules += Instance("dff",
i_clk=pin.o_clk,
i_d=pin.oe,
o_q=oe_reg[bit],
o_clrn=Const(1),
o_prn=Const(1),
)
return oe_reg
assert False