bslathi19/cocotbext-eth
1
0
Fork 0
Code Issues Pull Requests Actions 3 Packages Projects Releases 2 Wiki Activity

Store SFD transfer sim time

Browse Source
This commit is contained in:
Alex Forencich
2021-01-03 23:28:33 -08:00
parent 1bd01ae879
commit aa97848450
5 changed files with 35 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
cocotbext/eth/gmii.py
View File

@@ -41,6 +41,7 @@ class GmiiFrame:
self.data = bytearray()
self.error = None
self.sim_time_start = None
self.sim_time_sfd = None
self.sim_time_end = None
self.tx_complete = None
@@ -48,6 +49,7 @@ class GmiiFrame:
self.data = bytearray(data.data)
self.error = data.error
self.sim_time_start = data.sim_time_start
self.sim_time_sfd = data.sim_time_sfd
self.sim_time_end = data.sim_time_end
self.tx_complete = data.tx_complete
else:
@@ -114,6 +116,7 @@ class GmiiFrame:
f"{type(self).__name__}(data={self.data!r}, "
f"error={self.error!r}, "
f"sim_time_start={self.sim_time_start!r}, "
f"sim_time_sfd={self.sim_time_sfd!r}, "
f"sim_time_end={self.sim_time_end!r})"
)
@@ -253,7 +256,10 @@ class GmiiSource(Reset):
self.active = True
if frame is not None:
self.data <= frame.data.pop(0)
d = frame.data.pop(0)
if frame.sim_time_sfd is None and d in (EthPre.SFD, 0xD):
frame.sim_time_sfd = get_sim_time()
self.data <= d
if self.er is not None:
self.er <= frame.error.pop(0)
self.dv <= 1
@@ -420,6 +426,9 @@ class GmiiSink(Reset):
frame = None
if frame is not None:
if frame.sim_time_sfd is None and d_val in (EthPre.SFD, 0xD):
frame.sim_time_sfd = get_sim_time()
frame.data.append(d_val)
frame.error.append(er_val)