156 lines
6.5 KiB
Python
156 lines
6.5 KiB
Python
#
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# 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 sys, os, time, struct
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import argparse
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import stcgal
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from stcgal.utils import Utils, BaudType
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from stcgal.protocols import *
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class StcGal:
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"""STC ISP flash tool frontend"""
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def __init__(self, opts):
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self.opts = opts
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if opts.protocol == "stc89":
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self.protocol = Stc89Protocol(opts.port, opts.handshake, opts.baud)
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elif opts.protocol == "stc12a":
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self.protocol = Stc12AProtocol(opts.port, opts.handshake, opts.baud)
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elif opts.protocol == "stc12":
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self.protocol = Stc12Protocol(opts.port, opts.handshake, opts.baud)
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elif opts.protocol == "stc15a":
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self.protocol = Stc15AProtocol(opts.port, opts.handshake, opts.baud,
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round(opts.trim * 1000))
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else:
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self.protocol = Stc15Protocol(opts.port, opts.handshake, opts.baud,
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round(opts.trim * 1000))
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self.protocol.debug = opts.debug
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def emit_options(self, options):
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for o in options:
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try:
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kv = o.split("=", 1)
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if len(kv) < 2: raise ValueError("incorrect format")
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self.protocol.set_option(kv[0], kv[1])
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except ValueError as e:
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raise NameError("invalid option '%s' (%s)" % (kv[0], e))
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def program_mcu(self):
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code_size = self.protocol.model.code
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ee_size = self.protocol.model.eeprom
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bindata = self.opts.code_binary.read()
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# warn if it overflows
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if len(bindata) > code_size:
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print("WARNING: code_binary overflows into eeprom segment!", file=sys.stderr)
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if len(bindata) > (code_size + ee_size):
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print("WARNING: code_binary truncated!", file=sys.stderr)
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bindata = bindata[0:code_size + ee_size]
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# add eeprom data if supplied
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if self.opts.eeprom_binary:
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eedata = self.opts.eeprom_binary.read()
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if len(eedata) > ee_size:
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print("WARNING: eeprom_binary truncated!", file=sys.stderr)
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eedata = eedata[0:ee_size]
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if len(bindata) < code_size:
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bindata += bytes(code_size - len(bindata))
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elif len(bindata) > code_size:
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print("WARNING: eeprom_binary overlaps code_binary!", file=sys.stderr)
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bindata = bindata[0:code_size]
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bindata += eedata
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# pad to 256 byte boundary
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if len(bindata) % 256:
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bindata += bytes(256 - len(bindata) % 256)
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if self.opts.option: self.emit_options(self.opts.option)
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self.protocol.handshake()
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self.protocol.erase_flash(len(bindata), code_size)
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self.protocol.program_flash(bindata)
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self.protocol.program_options()
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self.protocol.disconnect()
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def run(self):
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try: self.protocol.connect()
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except KeyboardInterrupt:
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sys.stdout.flush();
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print("interrupted")
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return 2
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except (StcFramingException, StcProtocolException) as e:
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sys.stdout.flush();
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print("Protocol error: %s" % e, file=sys.stderr)
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self.protocol.disconnect()
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return 1
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except serial.SerialException as e:
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sys.stdout.flush();
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print("Serial port error: %s" % e, file=sys.stderr)
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return 1
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try:
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if self.opts.code_binary:
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self.program_mcu()
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return 0
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else:
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self.protocol.disconnect()
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return 0
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except NameError as e:
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sys.stdout.flush();
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print("Option error: %s" % e, file=sys.stderr)
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self.protocol.disconnect()
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return 1
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except (StcFramingException, StcProtocolException) as e:
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sys.stdout.flush();
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print("Protocol error: %s" % e, file=sys.stderr)
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self.protocol.disconnect()
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return 1
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except KeyboardInterrupt:
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sys.stdout.flush();
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print("interrupted", file=sys.stderr)
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self.protocol.disconnect()
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return 2
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except serial.SerialException as e:
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print("Serial port error: %s" % e, file=sys.stderr)
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return 1
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def cli():
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# check arguments
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parser = argparse.ArgumentParser(description="stcgal %s - an STC MCU ISP flash tool" %stcgal.__version__)
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parser.add_argument("code_binary", help="code segment binary file to flash", type=argparse.FileType("rb"), nargs='?')
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parser.add_argument("eeprom_binary", help="eeprom segment binary file to flash", type=argparse.FileType("rb"), nargs='?')
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parser.add_argument("-P", "--protocol", help="protocol version", choices=["stc89", "stc12a", "stc12", "stc15a", "stc15"], default="stc12")
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parser.add_argument("-p", "--port", help="serial port device", default="/dev/ttyUSB0")
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parser.add_argument("-b", "--baud", help="transfer baud rate (default: 19200)", type=BaudType(), default=19200)
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parser.add_argument("-l", "--handshake", help="handshake baud rate (default: 2400)", type=BaudType(), default=2400)
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parser.add_argument("-o", "--option", help="set option (can be used multiple times)", action="append")
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parser.add_argument("-t", "--trim", help="RC oscillator frequency in kHz (STC15 series only)", type=float, default=0.0)
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parser.add_argument("-D", "--debug", help="enable debug output", action="store_true")
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opts = parser.parse_args()
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# run programmer
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gal = StcGal(opts)
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sys.exit(gal.run())
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