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liteusb/frontend/wishbone: use new packetized mode (allow grouping response in a single packet)

This commit is contained in:
Florent Kermarrec 2015-05-02 16:15:58 +02:00
parent 1761bfba8a
commit e9ef11620f
2 changed files with 8 additions and 8 deletions
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7
misoclib/com/liteusb/frontend/wishbone.py
View File

@ -6,9 +6,4 @@ from misoclib.tools.litescope.frontend.wishbone import LiteScopeWishboneBridge
class LiteUSBWishboneBridge(LiteScopeWishboneBridge): class LiteUSBWishboneBridge(LiteScopeWishboneBridge):
def __init__(self, port, clk_freq): def __init__(self, port, clk_freq):
LiteScopeWishboneBridge.__init__(self, port, clk_freq) LiteScopeWishboneBridge.__init__(self, port, clk_freq)
self.comb += [ self.comb += port.sink.dst.eq(port.tag)
port.sink.sop.eq(1),
port.sink.eop.eq(1),
port.sink.length.eq(1),
port.sink.dst.eq(port.tag)
]

9
misoclib/com/liteusb/software/ftdi/__init__.py
View File

@ -179,10 +179,15 @@ class UART:
self.q = queue.Queue() self.q = queue.Queue()
def get_packet_size(self, buf): def get_packet_size(self, buf):
return 10 payload_size = buf[5] << 24
payload_size |= buf[6] << 16
payload_size |= buf[7] << 8
payload_size |= buf[8] << 0
return 9 + payload_size
def consume(self, buf): def consume(self, buf):
self.q.put(buf[9]) for value in buf[9:]:
self.q.put(value)
def __init__(self, tag): def __init__(self, tag):
self.tag = tag self.tag = tag