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Reset processing on assert edge only to permit operations to be queued while reset is asserted

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This commit is contained in:
Alex Forencich
2021-03-21 12:13:19 -07:00
parent 156fada616
commit 7fb8c4e28b
6 changed files with 187 additions and 183 deletions
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36
cocotbext/axi/axis.py
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@@ -365,13 +365,13 @@ class AxiStreamBase(Reset):
if self._run_cr is not None:
self._run_cr.kill()
self._run_cr = None
self.active = False
else:
self.log.info("Reset de-asserted")
if self._run_cr is None:
self._run_cr = cocotb.scheduler.start_soon(self._run())
self.active = False
async def _run(self):
raise NotImplementedError()
@@ -441,19 +441,20 @@ class AxiStreamSource(AxiStreamBase, AxiStreamPause):
def _handle_reset(self, state):
super()._handle_reset(state)
self.bus.tdata <= 0
if hasattr(self.bus, "tvalid"):
self.bus.tvalid <= 0
if hasattr(self.bus, "tlast"):
self.bus.tlast <= 0
if hasattr(self.bus, "tkeep"):
self.bus.tkeep <= 0
if hasattr(self.bus, "tid"):
self.bus.tid <= 0
if hasattr(self.bus, "tdest"):
self.bus.tdest <= 0
if hasattr(self.bus, "tuser"):
self.bus.tuser <= 0
if state:
self.bus.tdata <= 0
if hasattr(self.bus, "tvalid"):
self.bus.tvalid <= 0
if hasattr(self.bus, "tlast"):
self.bus.tlast <= 0
if hasattr(self.bus, "tkeep"):
self.bus.tkeep <= 0
if hasattr(self.bus, "tid"):
self.bus.tid <= 0
if hasattr(self.bus, "tdest"):
self.bus.tdest <= 0
if hasattr(self.bus, "tuser"):
self.bus.tuser <= 0
async def _run(self):
frame = None
@@ -659,8 +660,9 @@ class AxiStreamSink(AxiStreamMonitor, AxiStreamPause):
def _handle_reset(self, state):
super()._handle_reset(state)
if hasattr(self.bus, "tready"):
self.bus.tready <= 0
if state:
if hasattr(self.bus, "tready"):
self.bus.tready <= 0
async def _run(self):
frame = None