projects
/
soc.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
|
inline
| side by side (parent:
6861d8f
)
Check that busy_o doesn't rise on its own
author
Cesar Strauss
<cestrauss@gmail.com>
Mon, 25 May 2020 22:50:32 +0000
(19:50 -0300)
committer
Cesar Strauss
<cestrauss@gmail.com>
Mon, 25 May 2020 22:51:13 +0000
(19:51 -0300)
src/soc/experiment/compalu_multi.py
patch
|
blob
|
history
diff --git
a/src/soc/experiment/compalu_multi.py
b/src/soc/experiment/compalu_multi.py
index 081472eeee129472af0b819bdd5976124eb4800d..beb2179ad6de7e2382dc215f77dae687c7769ee5 100644
(file)
--- a/
src/soc/experiment/compalu_multi.py
+++ b/
src/soc/experiment/compalu_multi.py
@@
-388,18
+388,22
@@
class CompUnitParallelTest:
# Operation cycle should not take longer than this:
self.MAX_BUSY_WAIT = 50
# Operation cycle should not take longer than this:
self.MAX_BUSY_WAIT = 50
+ # Minimum duration in which issue_i will be kept inactive,
+ # during which busy_o must remain low.
+ self.MIN_BUSY_LOW = 5
+
def driver(self):
print("Begin parallel test.")
# issue_i starts inactive
yield self.dut.issue_i.eq(0)
def driver(self):
print("Begin parallel test.")
# issue_i starts inactive
yield self.dut.issue_i.eq(0)
- yield
- # busy_o must start inactive
- # TODO: Check a few times that busy_o doesn't rise on its own
- busy_o = yield self.dut.busy_o
- assert not busy_o
+ for n in range(self.MIN_BUSY_LOW):
+ yield
+ # busy_o must remain inactive. It cannot rise on its own.
+ busy_o = yield self.dut.busy_o
+ assert not busy_o
# activate issue_i to begin the operation cycle
yield self.dut.issue_i.eq(1)
# activate issue_i to begin the operation cycle
yield self.dut.issue_i.eq(1)