async def initial_hal_test(dut, debug=True):
"""Example of using the software HAL against cosim testbench"""
cocotb.fork(Clock(dut.clk, 5, units='ns').start())
await reset(dut)
# Create the avalon master and direct our HAL calls to that
master = AvalonMaster(dut, "csr", dut.clk)
if debug:
master.log.setLevel(logging.DEBUG)
@cocotb.function
async def read(address):
master.log.debug("External source: reading address 0x%08X" % address)
value = await master.read(address)
master.log.debug("Reading complete: got value 0x%08x" % value)
return value
@cocotb.function
async def write(address, value):
master.log.debug("Write called for 0x%08X -> %d" % (address, value))
await master.write(address, value)
master.log.debug("Write complete")
io_module.set_write_function(write)
io_module.set_read_function(read)
dut._log.info("READ/WRITE functions set up, initialising HAL")
state = hal.endian_swapper_init(0)
# Check the actual value
if dut.byteswapping.value:
raise TestFailure("Byteswapping is enabled but haven't configured DUT")
await cocotb.external(hal.endian_swapper_enable)(state)
await ReadOnly()
if not dut.byteswapping.value:
raise TestFailure("Byteswapping wasn't enabled after calling "
"endian_swapper_enable")
dut._log.info(
"HAL call endian_swapper_enable successfully enabled the DUT")
def initial_hal_test(dut, debug=True):
"""Example of using the software HAL against cosim testbench"""
cocotb.fork(Clock(dut.clk, 5000).start())
yield reset(dut)
# Create the avalon master and direct our HAL calls to that
master = AvalonMaster(dut, "csr", dut.clk)
if debug:
master.log.setLevel(logging.DEBUG)
@cocotb.function
def read(address):
master.log.debug("External source: reading address 0x%08X" % address)
value = yield master.read(address)
master.log.debug("Reading complete: got value 0x%08x" % value)
raise ReturnValue(value)
@cocotb.function
def write(address, value):
master.log.debug("Write called for 0x%08X -> %d" % (address, value))
yield master.write(address, value)
master.log.debug("Write complete")
io_module.set_write_function(write)
io_module.set_read_function(read)
dut._log.info("READ/WRITE functions set up, initialising HAL")
state = hal.endian_swapper_init(0)
# Check the actual value
if dut.byteswapping.value:
raise TestFailure("Byteswapping is enabled but haven't configured DUT")
yield cocotb.external(hal.endian_swapper_enable)(state)
if not dut.byteswapping.value:
raise TestFailure("Byteswapping wasn't enabled after calling "
"endian_swapper_enable")
dut._log.info("HAL call endian_swapper_enable successfully enabled the DUT")