occheung
/
artiq
forked from M-Labs/artiq
1
0
Fork 0
Code Pull Requests Activity

drtio: accept 32b/64b bus

This commit is contained in:
occheung 2021-11-08 12:29:15 +08:00 committed by Sébastien Bourdeauducq
parent 8da924ec0f
commit c6e0e26440
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
artiq/gateware/drtio/aux_controller.py
View File

@ -212,14 +212,15 @@ class Receiver(Module, AutoCSR):
# TODO: FullMemoryWE should be applied by migen.build
@FullMemoryWE()
class DRTIOAuxController(Module):
def __init__(self, link_layer):
self.bus = wishbone.Interface()
def __init__(self, link_layer, dw=32):
wsb = log2_int(dw//8)
self.bus = wishbone.Interface(data_width=dw, adr_width=32-wsb)
self.submodules.transmitter = Transmitter(link_layer, len(self.bus.dat_w))
self.submodules.receiver = Receiver(link_layer, len(self.bus.dat_w))
tx_sdram_if = wishbone.SRAM(self.transmitter.mem, read_only=False)
rx_sdram_if = wishbone.SRAM(self.receiver.mem, read_only=True)
wsb = log2_int(len(self.bus.dat_w)//8)
tx_sdram_if = wishbone.SRAM(self.transmitter.mem, read_only=False, data_width=dw)
rx_sdram_if = wishbone.SRAM(self.receiver.mem, read_only=True, data_width=dw)
decoder = wishbone.Decoder(self.bus,
[(lambda a: a[log2_int(max_packet)-wsb] == 0, tx_sdram_if.bus),
(lambda a: a[log2_int(max_packet)-wsb] == 1, rx_sdram_if.bus)],