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mac/crc: Revert 30e66a7 (introducing a regression).

This commit is contained in:
Florent Kermarrec 2024-04-08 17:15:04 +02:00
parent 421e008fc8
commit 79ccffcfa7
1 changed files with 2 additions and 8 deletions
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10
liteeth/mac/crc.py
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@ -121,22 +121,16 @@ class LiteEthMACCRC32(LiteXModule):
self.sync += reg.eq(engines[-1].crc_next) self.sync += reg.eq(engines[-1].crc_next)
# Select CRC Engine/Result. # Select CRC Engine/Result.
crc_next = Signal(self.width)
for n in range(data_width//8): for n in range(data_width//8):
self.comb += [ self.comb += [
engines[n].data.eq(self.data), engines[n].data.eq(self.data),
engines[n].crc_prev.eq(reg), engines[n].crc_prev.eq(reg),
If(self.be[n], If(self.be[n],
crc_next.eq(engines[n].crc_next) self.value.eq(engines[n].crc_next[::-1] ^ self.init),
self.error.eq(engines[n].crc_next != self.check),
) )
] ]
# Output.
self.comb += [
self.value.eq(crc_next[::-1] ^ self.init),
self.error.eq(crc_next != self.check),
]
# MAC CRC32 Inserter ------------------------------------------------------------------------------- # MAC CRC32 Inserter -------------------------------------------------------------------------------
class LiteEthMACCRC32Inserter(LiteXModule): class LiteEthMACCRC32Inserter(LiteXModule):