fcbc560ade
Print manufacturing date as well as the factory-measured internal voltage reference value. These values are displayed by STC-ISP, too.
72 lines
2.4 KiB
Python
72 lines
2.4 KiB
Python
# Copyright (c) 2013-2015 Grigori Goronzy <greg@chown.ath.cx>
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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#
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import argparse
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import serial
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class Utils:
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"""Common utility functions"""
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@classmethod
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def to_bool(cls, val):
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"""make sensible boolean from string or other type value"""
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if not val:
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return False
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if isinstance(val, bool):
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return val
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elif isinstance(val, int):
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return bool(val)
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return True if val[0].lower() == "t" or val[0] == "1" else False
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@classmethod
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def to_int(cls, val):
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"""make int from any value, nice error message if not possible"""
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try:
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return int(val, 0)
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except (TypeError, ValueError):
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raise ValueError("invalid integer")
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@classmethod
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def hexstr(cls, bytestr, sep=""):
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"""make formatted hex string output from byte sequence"""
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return sep.join(["%02X" % x for x in bytes(bytestr)])
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@classmethod
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def decode_packed_bcd(cls, byt):
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"""Decode two-digit packed BCD value"""
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return (byt & 0x0f) + (10 * (byt >> 4))
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class BaudType:
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"""Check baud rate for validity"""
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def __call__(self, string):
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baud = int(string)
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if baud not in serial.Serial.BAUDRATES:
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raise argparse.ArgumentTypeError("illegal baudrate")
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return baud
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def __repr__(self):
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return "baudrate"
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