本文整理汇总了Python中myhdl.Signal类的典型用法代码示例。如果您正苦于以下问题：Python Signal类的具体用法？Python Signal怎么用？Python Signal使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Signal类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: bench
def bench(self):
clk = Signal(0)
sig1 = Signal(0)
sig2 = Signal(0)
td = 10
def gen(s, n):
for i in range(n-1):
yield delay(td)
s.next = 1
yield delay(td)
for i in range(10):
offset = now()
n0 = randrange(1, 50)
n1 = randrange(1, 50)
n2 = randrange(1, 50)
sig1.next = 0
sig2.next = 0
yield join(delay(n0*td), gen(sig1, n1), gen(sig2, n2))
assert sig1.val == 1
assert sig2.val == 1
assert now() == offset + td * max(n0, n1, n2)
raise StopSimulation("Joined concurrent generator yield")示例2: assign_config
def assign_config(sig, val):
keep = Signal(bool(0))
keep.driven = 'wire'
@always_comb
def beh_assign():
sig.next = val if keep else val
return beh_assign示例3: testValAttrReadOnly
def testValAttrReadOnly(self):
""" val attribute should not be writable"""
s1 = Signal(1)
try:
s1.val = 1
except AttributeError:
pass
else:
self.fail()示例4: testDrivenAttrValue
def testDrivenAttrValue(self):
""" driven attribute only accepts value 'reg' or 'wire' """
s1 = Signal(1)
try:
s1.driven = "signal"
except ValueError:
pass
else:
self.fail()示例5: get_unsigned_intbv_rand_signal
def get_unsigned_intbv_rand_signal(width, init_value=0):
'''Create an unsigned intbv random signal.
'''
min_val = 0
max_val = 2**(width)
signal = Signal(intbv(val=init_value, min=min_val, max=max_val))
signal.val[:] = randrange(min_val, max_val)
return signal, min_val, max_val示例6: testNegedgeAttrReadOnly
def testNegedgeAttrReadOnly(self):
""" negedge attribute should not be writable"""
s1 = Signal(1)
try:
s1.negedge = 1
except AttributeError:
pass
else:
self.fail()示例7: testSignalBoolBounds
def testSignalBoolBounds(self):
if type(bool) is not type: # bool not a type in 2.2
return
s = Signal(bool())
s.next = 1
s.next = 0
for v in (-1, -8, 2, 5):
with pytest.raises(ValueError):
s.next = v示例8: stimulus
def stimulus():
a = Signal(0)
yield delay(10)
a.next = 1
yield None, delay(10)
self.assertEqual(a.val, 0)
self.assertEqual(now(), 10)
yield delay(0)
self.assertEqual(a.val, 1)
self.assertEqual(now(), 10)示例9: stimulus
def stimulus():
a = Signal(0)
yield delay(10)
a.next = 1
yield None, delay(10)
assert a.val == 0
assert now() == 10
yield delay(0)
assert a.val == 1
assert now() == 10示例10: inst
def inst():
yield delay(200 * nsec)
addr = Signal(intbv(0x10)[len(bus.A):])
while 1:
yield system.CLK.posedge
bus.CS_B.next = 0
bus.RAS_B.next = 0
bus.A.next = 0x4
bus.BA.next = 0x2
yield system.CLK.posedge
bus.CS_B.next = 1
bus.RAS_B.next = 1
bus.A.next = ~0 & mask(bus.A)
bus.BA.next = ~0 & mask(bus.BA)
yield system.CLK.posedge
bus.CS_B.next = 0
bus.CAS_B.next = 0
bus.A.next = addr
bus.BA.next = 0
yield system.CLK.posedge
bus.CS_B.next = 1
bus.CAS_B.next = 1
bus.A.next = ~0 & mask(bus.A)
bus.BA.next = ~0 & mask(bus.BA)
addr.next = 0
if addr != n - 1:
addr.next = addr + 4
yield system.CLK.posedge
bus.CS_B.next = 0
bus.CAS_B.next = 0
bus.A.next = addr
yield system.CLK.posedge
bus.CS_B.next = 1
bus.CAS_B.next = 1
bus.A.next = ~0 & mask(bus.A)
addr.next = 0
if addr != n - 1:
addr.next = addr + 4
yield delay(interval - 1)示例11: test
def test(B, G):
w = len(B)
G_Z = Signal(intbv(0)[w:])
B.next = intbv(0)
yield delay(10)
for i in range(1, 2**w):
G_Z.next = G
B.next = intbv(i)
yield delay(10)
diffcode = bin(G ^ G_Z)
self.assertEqual(diffcode.count('1'), 1)示例12: stimulus
def stimulus():
N = Signal(intbv(0)[32:])
yield bus.reset()
# Send a clear
yield whitebox_clear(bus)
# Check the fifo flags
yield bus.receive(WE_STATUS_ADDR)
assert bus.rdata & WES_SPACE
assert not (bus.rdata & WES_DATA)
yield bus.transmit(WE_THRESHOLD_ADDR,
concat(intbv(1)[16:], intbv(3)[16:]))
yield bus.receive(WE_THRESHOLD_ADDR)
assert bus.rdata == concat(intbv(1)[16:], intbv(3)[16:])
yield bus.transmit(WE_INTERP_ADDR, INTERP)
yield bus.receive(WE_INTERP_ADDR)
assert bus.rdata == INTERP
## Insert samples until overrun
yield bus.receive(WE_RUNS_ADDR)
while not (bus.rdata & 0x0000ffff):
x = intbv(int(sin(1000 * (2 * pi) * N / 50000) * 2**15), min=-2**15, max=2**15)[16:]
yield bus.transmit(WE_SAMPLE_ADDR, concat(x, x))
N.next = N + 1
yield bus.receive(WE_RUNS_ADDR)
# Check that we're full
yield bus.receive(WE_STATUS_ADDR)
assert not (bus.rdata & WES_SPACE)
assert bus.rdata & WES_DATA
## Now start transmitting
yield bus.transmit(WE_STATUS_ADDR, WES_TXEN)
yield bus.receive(WE_STATUS_ADDR)
assert bus.rdata & WES_TXEN
## Wait until underrun
yield bus.receive(WE_RUNS_ADDR)
while not (bus.rdata & 0xffff0000):
yield bus.delay(1000)
yield bus.receive(WE_RUNS_ADDR)
## Make sure we're both over and underrun
assert bus.rdata & 0xffff0000 and bus.rdata & 0x0000ffff
# Check the fifo flags
yield bus.receive(WE_STATUS_ADDR)
assert bus.rdata & WES_SPACE
assert not (bus.rdata & WES_DATA)
raise StopSimulation示例13: assign_config
def assign_config(sig, val):
"""
Arguments:
sig (Signal): The signals to be assigned to a constant value
val (int): The constant value
"""
keep = Signal(bool(0))
keep.driven = 'wire'
@always_comb
def beh_assign():
sig.next = val if keep else val
return beh_assign示例14: get_signed_intbv_rand_signal
def get_signed_intbv_rand_signal(width, val_range=None, init_value=0):
'''Create a signed intbv random signal.
'''
if val_range is not None:
min_val = val_range[0]
max_val = val_range[1]
else:
min_val = -(2**(width - 1) - 1)
max_val = 2**(width - 1)
signal = Signal(intbv(init_value, min=min_val, max=max_val))
signal.val[:] = randrange(min_val, max_val)
return signal, min_val, max_val示例15: testSignalBoolBounds
def testSignalBoolBounds(self):
if type(bool) is not type: # bool not a type in 2.2
return
s = Signal(bool())
s.next = 1
s.next = 0
for v in (-1, -8, 2, 5):
try:
s.next = v
#s._update()
#s.val
except ValueError:
pass
else:
self.fail()