def read_1_word_test(dut):
"""
Description:
*
Test ID: 1
Expected Results:
*
"""
dut.rst <= 1
dut.test_id <= 1
setup_dut(dut)
ADDR = 0x00
memory = Array('B', [0] * MEM_SIZE)
memory[0] = 0x10
memory[1] = 0x32
memory[2] = 0x54
memory[3] = 0x76
#memory = [0] * MEM_SIZE
#memory[0] = 0x7654321
axim = AXI4Slave(dut, "AXIS", dut.clk, memory)
axim.log.setLevel(logging.DEBUG)
cm = CommandMaster(dut, "CMD", dut.clk)
cm.log.setLevel(logging.DEBUG)
yield Timer(CLK_PERIOD * 10)
dut.rst <= 1
yield Timer(CLK_PERIOD * 10)
dut.rst <= 0
yield Timer(CLK_PERIOD * 40)
data = yield cm.read(ADDR)
yield Timer(CLK_PERIOD * 50)
def write_1_word_test(dut):
"""
Description:
*
Test ID: 0
Expected Results:
*
"""
dut.rst <= 1
dut.test_id <= 0
setup_dut(dut)
memory = [0] * MEM_SIZE
axim = AXI4Slave(dut, "AXIS", dut.clk, memory)
axim.log.setLevel(logging.DEBUG)
cm = CommandMaster(dut, "CMD", dut.clk)
cm.log.setLevel(logging.DEBUG)
yield Timer(CLK_PERIOD * 10)
dut.rst <= 1
yield Timer(CLK_PERIOD * 10)
dut.rst <= 0
yield Timer(CLK_PERIOD * 40)
yield cm.write(0x01, 0x01234567)
yield Timer(CLK_PERIOD * 50)
def read_512_word_test(dut):
"""
Description:
*
Test ID: 4
Expected Results:
*
"""
dut.rst <= 4
dut.test_id <= 0
setup_dut(dut)
MEM_SIZE = 4096
#COUNT = 10
COUNT = 512
ADDR = 0x00
memory = Array('B', [0] * MEM_SIZE)
for i in range(len(memory)):
#memory[i] = i % 256
memory[i] = (255 - i) % 256
axim = AXI4Slave(dut, "AXIS", dut.clk, memory)
axim.log.setLevel(logging.DEBUG)
cm = CommandMaster(dut, "CMD", dut.clk)
cm.log.setLevel(logging.DEBUG)
yield Timer(CLK_PERIOD * 10)
dut.rst <= 1
yield Timer(CLK_PERIOD * 10)
dut.rst <= 0
yield Timer(CLK_PERIOD * 40)
#yield cm.read(0x02, 2)
yield cm.read(ADDR, COUNT)
yield Timer(CLK_PERIOD * 1000)
def write_256_words_test(dut):
"""
Description:
*
Test ID: 2
Expected Results:
*
"""
dut.rst <= 1
dut.test_id <= 2
setup_dut(dut)
memory = [0] * MEM_SIZE
data = []
for i in range(256):
data.append(i)
axim = AXI4Slave(dut, "AXIS", dut.clk, memory)
axim.log.setLevel(logging.DEBUG)
cm = CommandMaster(dut, "CMD", dut.clk)
cm.log.setLevel(logging.DEBUG)
yield Timer(CLK_PERIOD * 10)
dut.rst <= 1
yield Timer(CLK_PERIOD * 10)
dut.rst <= 0
yield Timer(CLK_PERIOD * 40)
yield cm.write(0x01, data)
yield Timer(CLK_PERIOD * 400)
def write_256_words_with_backpreassure_test(dut):
"""
Description:
*
Test ID: 3
Expected Results:
*
"""
dut.rst <= 1
dut.test_id <= 3
ADDR = 0x04
setup_dut(dut)
memory = [0] * MEM_SIZE
data_in = []
for i in range(256):
data_in.append(i)
axim = AXI4Slave(dut, "AXIS", dut.clk, memory)
axim.log.setLevel(logging.DEBUG)
cm = CommandMaster(dut, "CMD", dut.clk)
cm.log.setLevel(logging.DEBUG)
yield Timer(CLK_PERIOD * 10)
dut.rst <= 1
yield Timer(CLK_PERIOD * 10)
dut.rst <= 0
yield Timer(CLK_PERIOD * 40)
cocotb.fork(cm.write(ADDR, data_in))
yield Timer(CLK_PERIOD * 300)
dut.test_id <= 0
yield axim.delay(100)
dut.test_id <= 3
yield Timer(CLK_PERIOD * 800)
byte_data_out = memory[ADDR:ADDR + len(data_in) * 4]
data_out = [0] * len(data_in)
for i in range(0, len(data_in)):
data_out[i] = (byte_data_out[(i * 4) + 3] << 24) | \
(byte_data_out[(i * 4) + 2] << 16) | \
(byte_data_out[(i * 4) + 1] << 8) | \
(byte_data_out[(i * 4) + 0] << 0)
for i in range(len(data_out)):
if data_out[i] != data_in[i]:
print "[% 4d]: 0x%08X != 0x%08X" % (i, data_in[i], data_out[i])