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Dependencies: MAX44000 PWM_Tone_Library nexpaq_mdk
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Diff: mbd_os/tools/host_tests/echo.py
- Revision:
- 1:55a6170b404f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbd_os/tools/host_tests/echo.py Sat Sep 17 16:32:05 2016 +0000 @@ -0,0 +1,59 @@ +""" +mbed SDK +Copyright (c) 2011-2013 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. +""" + +import sys +import uuid +from sys import stdout + +class EchoTest(): + + # Test parameters + TEST_SERIAL_BAUDRATE = 115200 + TEST_LOOP_COUNT = 50 + + def test(self, selftest): + """ This host test will use mbed serial port with + baudrate 115200 to perform echo test on that port. + """ + # Custom initialization for echo test + selftest.mbed.init_serial_params(serial_baud=self.TEST_SERIAL_BAUDRATE) + selftest.mbed.init_serial() + + # Test function, return True or False to get standard test notification on stdout + selftest.mbed.flush() + selftest.notify("HOST: Starting the ECHO test") + result = True + + """ This ensures that there are no parasites left in the serial buffer. + """ + for i in range(0, 2): + selftest.mbed.serial_write("\n") + c = selftest.mbed.serial_readline() + + for i in range(0, self.TEST_LOOP_COUNT): + TEST_STRING = str(uuid.uuid4()) + "\n" + selftest.mbed.serial_write(TEST_STRING) + c = selftest.mbed.serial_readline() + if c is None: + return selftest.RESULT_IO_SERIAL + if c.strip() != TEST_STRING.strip(): + selftest.notify('HOST: "%s" != "%s"'% (c, TEST_STRING)) + result = False + else: + sys.stdout.write('.') + stdout.flush() + return selftest.RESULT_SUCCESS if result else selftest.RESULT_FAILURE