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{Dep,p}acketizer: handle transactions of a single bus word

This commit is contained in:
Leon Schuermann 2021-09-09 15:19:23 +02:00
parent a08271b83a
commit 6cacdcd926
1 changed files with 5 additions and 5 deletions
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10
litex/soc/interconnect/packet.py
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@ -238,7 +238,7 @@ class Packetizer(Module):
self.sync += If(source.ready, sink_d.eq(sink))
fsm.act("UNALIGNED-DATA-COPY",
source.valid.eq(sink.valid | sink_d.last),
source.last.eq(sink_d.last),
source.last.eq(sink.last | sink_d.last),
If(fsm_from_idle,
source.data[:max(header_leftover*8, 1)].eq(sr[min(header_offset_multiplier*data_width, len(sr)-1):])
).Else(
@ -246,7 +246,7 @@ class Packetizer(Module):
),
source.data[header_leftover*8:].eq(sink.data),
If(source.valid & source.ready,
sink.ready.eq(~source.last),
sink.ready.eq(~source.last | sink.last),
NextValue(fsm_from_idle, 0),
If(source.last,
NextState("IDLE")
@ -414,13 +414,13 @@ class Depacketizer(Module):
self.sync += If(sink.valid & sink.ready, sink_d.eq(sink))
fsm.act("UNALIGNED-DATA-COPY",
source.valid.eq(sink.valid | sink_d.last),
source.last.eq(sink.last | sink_d.last),
sink.ready.eq(source.ready),
source.last.eq(sink_d.last),
sink.ready.eq(source.ready & ~source.last),
source.data.eq(sink_d.data[header_leftover*8:]),
source.data[min((bytes_per_clk-header_leftover)*8, data_width-1):].eq(sink.data),
If(fsm_from_idle,
source.valid.eq(sink_d.last),
sink.ready.eq(1),
sink.ready.eq(~sink_d.last),
If(sink.valid,
NextValue(fsm_from_idle, 0),
sr_shift_leftover.eq(1),