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drtio: aux controller fixes

This commit is contained in:
Sebastien Bourdeauducq 2016-11-15 12:02:41 +08:00
parent e1394db861
commit 6c9965b444
1 changed files with 9 additions and 6 deletions
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15
artiq/gateware/drtio/aux_controller.py
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@ -12,11 +12,12 @@ max_packet = 1024
class Transmitter(Module, AutoCSR):
def __init__(self, link_layer, min_mem_dw):
self.aux_tx_length = CSRStorage(bits_for(max_packet))
self.aux_tx = CSR()
ll_dw = len(link_layer.tx_aux_data)
mem_dw = max(min_mem_dw, ll_dw)
self.aux_tx_length = CSRStorage(bits_for(max_packet),
alignment_bits=log2_int(mem_dw//8))
self.aux_tx = CSR()
self.specials.mem = Memory(mem_dw, max_packet//(mem_dw//8))
converter = stream.Converter(mem_dw, ll_dw)
@ -83,7 +84,9 @@ class Transmitter(Module, AutoCSR):
)
fsm.act("TRANSMIT",
converter.sink.stb.eq(1),
frame_counter_ce.eq(1),
If(converter.sink.ack,
frame_counter_ce.eq(1)
),
If(frame_counter_next == tx_length, NextState("WAIT_INTERFRAME"))
)
fsm.act("WAIT_INTERFRAME",
@ -109,7 +112,7 @@ class Receiver(Module, AutoCSR):
# when continuously drained, the Converter accepts data continuously
self.sync.rtio_rx += [
converter.sink.stb.eq(link_layer.rx_aux_stb),
converter.sink.stb.eq(link_layer.rx_aux_stb & link_layer.rx_aux_frame),
converter.sink.data.eq(link_layer.rx_aux_data)
]
self.comb += converter.sink.eop.eq(link_layer.rx_aux_stb & ~link_layer.rx_aux_frame)
@ -145,7 +148,7 @@ class Receiver(Module, AutoCSR):
fsm = ClockDomainsRenamer("rtio_rx")(FSM(reset_state="IDLE"))
self.submodules += fsm
sop = Signal()
sop = Signal(reset=1)
self.sync.rtio_rx += \
If(converter.source.stb,
If(converter.source.eop,