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soc/cores/hyperbus: Avoid dq_oe condition to generate dq_o (was only useful for sim but now avoided).

This commit is contained in:
Florent Kermarrec 2024-08-20 21:54:15 +02:00
parent 298a004f08
commit 60f83b71fa
2 changed files with 26 additions and 20 deletions
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3
litex/soc/cores/hyperbus.py
View File

@ -160,7 +160,6 @@ class HyperRAM(LiteXModule):
).Else( ).Else(
sr_next[:dw].eq(dq_i), sr_next[:dw].eq(dq_i),
sr_next[dw:].eq(sr), sr_next[dw:].eq(sr),
) )
] ]
self.sync += If(clk_phase[0] == 0, sr.eq(sr_next)) # Shift on 0°/180° (and sampled on 90°/270°). self.sync += If(clk_phase[0] == 0, sr.eq(sr_next)) # Shift on 0°/180° (and sampled on 90°/270°).
@ -168,7 +167,6 @@ class HyperRAM(LiteXModule):
# Data Shift-Out Register ------------------------------------------------------------------ # Data Shift-Out Register ------------------------------------------------------------------
self.comb += [ self.comb += [
bus.dat_r.eq(sr_next), bus.dat_r.eq(sr_next),
If(dq_oe,
# Command/Address: 8-bit. # Command/Address: 8-bit.
If(ca_oe, If(ca_oe,
dq_o.eq(sr[-8:]), dq_o.eq(sr[-8:]),
@ -176,7 +174,6 @@ class HyperRAM(LiteXModule):
).Else( ).Else(
dq_o.eq(sr[-dw:]), dq_o.eq(sr[-dw:]),
) )
)
] ]
# Register Access/Buffer ------------------------------------------------------------------- # Register Access/Buffer -------------------------------------------------------------------

9
test/test_hyperbus.py
View File

@ -49,6 +49,7 @@ class TestHyperBus(unittest.TestCase):
self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk)) self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk))
self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n)) self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n))
self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe)) self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe))
if (yield dut.pads.dq.oe):
self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o)) self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o))
self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe)) self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe))
self.assertEqual(c2bool(rwds_o[i]), (yield dut.pads.rwds.o)) self.assertEqual(c2bool(rwds_o[i]), (yield dut.pads.rwds.o))
@ -73,6 +74,7 @@ class TestHyperBus(unittest.TestCase):
self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk)) self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk))
self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n)) self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n))
self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe)) self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe))
if (yield dut.pads.dq.oe):
self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o)) self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o))
self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe)) self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe))
self.assertEqual(c2bool(rwds_o[i]), (yield dut.pads.rwds.o)) self.assertEqual(c2bool(rwds_o[i]), (yield dut.pads.rwds.o))
@ -97,6 +99,7 @@ class TestHyperBus(unittest.TestCase):
self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk)) self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk))
self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n)) self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n))
self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe)) self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe))
if (yield dut.pads.dq.oe):
self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o)) self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o))
self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe)) self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe))
self.assertEqual(c2bool(rwds_o[i]), (yield dut.pads.rwds.o)) self.assertEqual(c2bool(rwds_o[i]), (yield dut.pads.rwds.o))
@ -121,6 +124,7 @@ class TestHyperBus(unittest.TestCase):
self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk)) self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk))
self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n)) self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n))
self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe)) self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe))
if (yield dut.pads.dq.oe):
self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o)) self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o))
self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe)) self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe))
self.assertEqual(c2bool(rwds_o[i]), (yield dut.pads.rwds.o)) self.assertEqual(c2bool(rwds_o[i]), (yield dut.pads.rwds.o))
@ -148,6 +152,7 @@ class TestHyperBus(unittest.TestCase):
self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk)) self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk))
self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n)) self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n))
self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe)) self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe))
if (yield dut.pads.dq.oe):
self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o)) self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o))
self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe)) self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe))
yield yield
@ -174,6 +179,7 @@ class TestHyperBus(unittest.TestCase):
self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk)) self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk))
self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n)) self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n))
self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe)) self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe))
if (yield dut.pads.dq.oe):
self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o)) self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o))
self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe)) self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe))
yield yield
@ -200,6 +206,7 @@ class TestHyperBus(unittest.TestCase):
self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk)) self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk))
self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n)) self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n))
self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe)) self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe))
if (yield dut.pads.dq.oe):
self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o)) self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o))
self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe)) self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe))
yield yield
@ -226,6 +233,7 @@ class TestHyperBus(unittest.TestCase):
self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk)) self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk))
self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n)) self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n))
self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe)) self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe))
if (yield dut.pads.dq.oe):
self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o)) self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o))
self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe)) self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe))
yield yield
@ -255,6 +263,7 @@ class TestHyperBus(unittest.TestCase):
self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk)) self.assertEqual(c2bool(clk[i]), (yield dut.pads.clk))
self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n)) self.assertEqual(c2bool(cs_n[i]), (yield dut.pads.cs_n))
self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe)) self.assertEqual(c2bool(dq_oe[i]), (yield dut.pads.dq.oe))
if (yield dut.pads.dq.oe):
self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o)) self.assertEqual(int(dq_o[2*(i//2):2*(i//2)+2], 16), (yield dut.pads.dq.o))
self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe)) self.assertEqual(c2bool(rwds_oe[i]), (yield dut.pads.rwds.oe))
self.assertEqual(c2bool(rwds_o[i]), (yield dut.pads.rwds.o)) self.assertEqual(c2bool(rwds_o[i]), (yield dut.pads.rwds.o))