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"""
mbed CMSIS-DAP debugger
Copyright (c) 2015 ARM Limited
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""
from __future__ import print_function
import os, sys
from time import sleep, time
from random import randrange
import traceback
import argparse
parentdir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0, parentdir)
from pyocd.core.helpers import ConnectHelper
from pyocd.probe.pydapaccess import DAPAccess
from test_util import (Test, TestResult, get_session_options)
import logging
class SpeedTestResult(TestResult):
def __init__(self):
super(SpeedTestResult, self).__init__(None, None, None)
self.name = "speed"
class SpeedTest(Test):
def __init__(self):
super(SpeedTest, self).__init__("Speed Test", speed_test)
def print_perf_info(self, result_list, output_file=None):
format_str = "{:<10}{:<16}{:<16}"
result_list = filter(lambda x: isinstance(x, SpeedTestResult), result_list)
print("\n\n------ Speed Test Performance ------", file=output_file)
print(format_str.format("Target", "Read Speed", "Write Speed"),
file=output_file)
print("", file=output_file)
for result in result_list:
if result.passed:
read_speed = "%.3f KB/s" % (float(result.read_speed) / float(1000))
write_speed = "%.3f KB/s" % (float(result.write_speed) / float(1000))
else:
read_speed = "Fail"
write_speed = "Fail"
print(format_str.format(result.board,
read_speed, write_speed),
file=output_file)
print("", file=output_file)
def run(self, board):
passed = False
read_speed = None
write_speed = None
try:
result = self.test_function(board.unique_id)
except Exception as e:
print("Exception %s when testing board %s" % (e, board.unique_id))
result = SpeedTestResult()
result.passed = False
traceback.print_exc(file=sys.stdout)
result.board = board
result.test = self
return result
def speed_test(board_id):
with ConnectHelper.session_with_chosen_probe(board_id=board_id, **get_session_options()) as session:
board = session.board
target_type = board.target_type
test_clock = 10000000
if target_type == "nrf51":
# Override clock since 10MHz is too fast
test_clock = 1000000
if target_type == "ncs36510":
# Override clock since 10MHz is too fast
test_clock = 1000000
memory_map = board.target.get_memory_map()
ram_regions = [region for region in memory_map if region.type == 'ram']
ram_region = ram_regions[0]
rom_region = memory_map.get_boot_memory()
ram_start = ram_region.start
ram_size = ram_region.length
rom_start = rom_region.start
rom_size = rom_region.length
target = board.target
test_pass_count = 0
test_count = 0
result = SpeedTestResult()
session.probe.set_clock(test_clock)
print("\n\n------ TEST RAM READ / WRITE SPEED ------")
test_addr = ram_start
test_size = ram_size
data = [randrange(1, 50) for x in range(test_size)]
start = time()
target.write_memory_block8(test_addr, data)
target.flush()
stop = time()
diff = stop - start
result.write_speed = test_size / diff
print("Writing %i byte took %.3f seconds: %.3f B/s" % (test_size, diff, result.write_speed))
start = time()
block = target.read_memory_block8(test_addr, test_size)
target.flush()
stop = time()
diff = stop - start
result.read_speed = test_size / diff
print("Reading %i byte took %.3f seconds: %.3f B/s" % (test_size, diff, result.read_speed))
error = False
for i in range(len(block)):
if (block[i] != data[i]):
error = True
print("ERROR: 0x%X, 0x%X, 0x%X!!!" % ((addr + i), block[i], data[i]))
if error:
print("TEST FAILED")
else:
print("TEST PASSED")
test_pass_count += 1
test_count += 1
print("\n\n------ TEST ROM READ SPEED ------")
test_addr = rom_start
test_size = rom_size
start = time()
block = target.read_memory_block8(test_addr, test_size)
target.flush()
stop = time()
diff = stop - start
print("Reading %i byte took %.3f seconds: %.3f B/s" % (test_size, diff, test_size / diff))
print("TEST PASSED")
test_pass_count += 1
test_count += 1
target.reset()
result.passed = test_count == test_pass_count
return result
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='pyOCD speed test')
parser.add_argument('-d', '--debug', action="store_true", help='Enable debug logging')
parser.add_argument("-da", "--daparg", dest="daparg", nargs='+', help="Send setting to DAPAccess layer.")
args = parser.parse_args()
level = logging.DEBUG if args.debug else logging.INFO
logging.basicConfig(level=level)
DAPAccess.set_args(args.daparg)
session = ConnectHelper.session_with_chosen_probe(open_session=False, **get_session_options())
test = SpeedTest()
result = [test.run(session.board)]
test.print_perf_info(result)
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