本文整理汇总了Python中cocotb.binary.BinaryValue.buff方法的典型用法代码示例。如果您正苦于以下问题：Python BinaryValue.buff方法的具体用法？Python BinaryValue.buff怎么用？Python BinaryValue.buff使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类cocotb.binary.BinaryValue的用法示例。
在下文中一共展示了BinaryValue.buff方法的4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: _read_data
# 需要导入模块: from cocotb.binary import BinaryValue [as 别名]
# 或者: from cocotb.binary.BinaryValue import buff [as 别名]
def _read_data(self):
clock_re = RisingEdge(self.clock)
while True:
while True:
yield ReadOnly()
if self.bus.ARVALID.value:
break
yield clock_re
yield ReadOnly()
self._araddr = int(self.bus.ARADDR)
_arlen = int(self.bus.ARLEN)
_arsize = int(self.bus.ARSIZE)
_arburst = int(self.bus.ARBURST)
_arprot = int(self.bus.ARPROT)
burst_length = _arlen + 1
bytes_in_beat = self._size_to_bytes_in_beat(_arsize)
word = BinaryValue(bits=bytes_in_beat*8, bigEndian=self.big_endain)
if __debug__:
self.log.debug(
"ARLEN %d\n" % _arlen +
"ARSIZE %d\n" % _arsize +
"ARBURST %d\n" % _arburst +
"BURST_LENGTH %d\n" % burst_length +
"Bytes in beat %d\n" % bytes_in_beat)
burst_count = burst_length
word.buff = self._read_memory(burst_length,
burst_count,
bytes_in_beat)
yield clock_re
self.bus.RDATA <= word
while True:
self.bus.RVALID <= 1
yield clock_re
if self.bus.RREADY.value:
word.buff = self._read_memory(burst_length,
burst_count,
bytes_in_beat)
self.bus.RDATA <= word
if burst_count == 1:
self.bus.RLAST <= 1
yield clock_re
self.bus.RLAST <= 0
self.bus.RVALID <= 0
break
burst_count -= 1示例2: _read_data
# 需要导入模块: from cocotb.binary import BinaryValue [as 别名]
# 或者: from cocotb.binary.BinaryValue import buff [as 别名]
def _read_data(self):
clock_re = RisingEdge(self.clock)
while True:
while True:
yield ReadOnly()
if self.bus.ARVALID.value:
break
yield clock_re
yield ReadOnly()
_araddr = int(self.bus.ARADDR)
_arlen = int(self.bus.ARLEN)
_arsize = int(self.bus.ARSIZE)
_arburst = int(self.bus.ARBURST)
_arprot = int(self.bus.ARPROT)
burst_length = _arlen + 1
bytes_in_beat = self._size_to_bytes_in_beat(_arsize)
word = BinaryValue(n_bits=bytes_in_beat*8, bigEndian=self.big_endian)
if __debug__:
self.log.debug(
"ARADDR %d\n" % _araddr +
"ARLEN %d\n" % _arlen +
"ARSIZE %d\n" % _arsize +
"ARBURST %d\n" % _arburst +
"BURST_LENGTH %d\n" % burst_length +
"Bytes in beat %d\n" % bytes_in_beat)
burst_count = burst_length
yield clock_re
while True:
self.bus.RVALID <= 1
yield ReadOnly()
if self.bus.RREADY.value:
_burst_diff = burst_length - burst_count
_st = _araddr + (_burst_diff * bytes_in_beat)
_end = _araddr + ((_burst_diff + 1) * bytes_in_beat)
word.buff = self._memory[_st:_end].tostring()
self.bus.RDATA <= word
if burst_count == 1:
self.bus.RLAST <= 1
yield clock_re
burst_count -= 1
self.bus.RLAST <= 0
if burst_count == 0:
break示例3: _send_string
# 需要导入模块: from cocotb.binary import BinaryValue [as 别名]
# 或者: from cocotb.binary.BinaryValue import buff [as 别名]
def _send_string(self, string, sync=True, channel=None):
"""Args:
string (str): A string of bytes to send over the bus.
channel (int): Channel to send the data on.
"""
# Avoid spurious object creation by recycling
clkedge = RisingEdge(self.clock)
firstword = True
# FIXME busses that aren't integer numbers of bytes
bus_width = int(len(self.bus.data) / 8)
word = BinaryValue(n_bits=len(self.bus.data),
bigEndian=self.config['firstSymbolInHighOrderBits'])
single = BinaryValue(n_bits=1, bigEndian=False)
if self.use_empty:
empty = BinaryValue(n_bits=len(self.bus.empty), bigEndian=False)
# Drive some defaults since we don't know what state we're in
if self.use_empty:
self.bus.empty <= 0
self.bus.startofpacket <= 0
self.bus.endofpacket <= 0
self.bus.valid <= 0
if hasattr(self.bus, 'error'):
self.bus.error <= 0
if hasattr(self.bus, 'channel'):
self.bus.channel <= 0
elif channel is not None:
raise TestError("%s does not have a channel signal" % self.name)
while string:
if not firstword or (firstword and sync):
yield clkedge
# Insert a gap where valid is low
if not self.on:
self.bus.valid <= 0
for i in range(self.off):
yield clkedge
# Grab the next set of on/off values
self._next_valids()
# Consume a valid cycle
if self.on is not True and self.on:
self.on -= 1
self.bus.valid <= 1
if hasattr(self.bus, 'channel'):
if channel is None:
self.bus.channel <= 0
elif channel > self.config['maxChannel'] or channel < 0:
raise TestError(
"%s: Channel value %d is outside range 0-%d" %
(self.name,channel,self.config['maxChannel']))
else:
self.bus.channel <= channel
if firstword:
self.bus.startofpacket <= 1
firstword = False
else:
self.bus.startofpacket <= 0
nbytes = min(len(string), bus_width)
data = string[:nbytes]
word.buff = data
if len(string) <= bus_width:
self.bus.endofpacket <= 1
if self.use_empty:
self.bus.empty <= bus_width - len(string)
string = ""
else:
string = string[bus_width:]
self.bus.data <= word
# If this is a bus with a ready signal, wait for this word to
# be acknowledged
if hasattr(self.bus, "ready"):
yield self._wait_ready()
yield clkedge
self.bus.valid <= 0
self.bus.endofpacket <= 0
word.binstr = ("x"*len(self.bus.data))
single.binstr = ("x")
self.bus.data <= word
self.bus.startofpacket <= single
self.bus.endofpacket <= single
if self.use_empty:
empty.binstr = ("x"*len(self.bus.empty))
self.bus.empty <= empty
if hasattr(self.bus, 'channel'):
channel_value = BinaryValue(n_bits=len(self.bus.channel), bigEndian=False)
#.........这里部分代码省略.........
示例4: _send_string
# 需要导入模块: from cocotb.binary import BinaryValue [as 别名]
# 或者: from cocotb.binary.BinaryValue import buff [as 别名]
def _send_string(self, string, sync=True):
"""
Args:
string (str): A string of bytes to send over the bus
"""
# Avoid spurious object creation by recycling
clkedge = RisingEdge(self.clock)
firstword = True
# FIXME busses that aren't integer numbers of bytes
bus_width = int(len(self.bus.data) / 8)
word = BinaryValue(bits=len(self.bus.data),
bigEndian=self.config['firstSymbolInHighOrderBits'])
empty = BinaryValue(bits=len(self.bus.empty), bigEndian=False)
single = BinaryValue(bits=1, bigEndian=False)
# Drive some defaults since we don't know what state we're in
# self.bus.empty <= 0
self.bus.startofpacket <= 0
self.bus.endofpacket <= 0
self.bus.valid <= 0
if hasattr(self.bus, 'error'):
self.bus.error <= 0
while string:
if not firstword or (firstword and sync):
yield clkedge
# Insert a gap where valid is low
if not self.on:
self.bus.valid <= 0
for i in range(self.off):
yield clkedge
# Grab the next set of on/off values
self._next_valids()
# Consume a valid cycle
if self.on is not True and self.on:
self.on -= 1
self.bus.valid <= 1
if firstword:
#self.bus.empty <= 0
self.bus.startofpacket <= 1
firstword = False
else:
self.bus.startofpacket <= 0
nbytes = min(len(string), bus_width)
data = string[:nbytes]
word.buff = data
if len(string) <= bus_width:
self.bus.endofpacket <= 1
self.bus.empty <= bus_width - len(string)
string = ""
else:
string = string[bus_width:]
self.bus.data <= word
# If this is a bus with a ready signal, wait for this word to
# be acknowledged
if hasattr(self.bus, "ready"):
yield self._wait_ready()
yield clkedge
self.bus.valid <= 0
self.bus.endofpacket <= 0
word.binstr = ("x"*len(self.bus.data))
empty.binstr = ("x"*len(self.bus.empty))
single.binstr = ("x")
self.bus.data <= word
self.bus.empty <= empty
self.bus.startofpacket <= single
self.bus.endofpacket <= single