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Add -e/--erase option

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Erases the flash memory without any programming. Mutually exclusive with
providing a file to flash.
This commit is contained in:
Grigori Goronzy
2021-01-03 19:57:50 +01:00
parent 0d5e8e645f
commit c2fd3ab710
1 changed files with 16 additions and 3 deletions
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17
stcgal/frontend.py
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@ -144,6 +144,15 @@ class StcGal:
self.protocol.program_options() self.protocol.program_options()
self.protocol.disconnect() self.protocol.disconnect()
def erase_mcu(self):
"""Erase MCU without programming"""
code_size = self.protocol.model.code
self.protocol.handshake()
self.protocol.erase_flash(code_size, code_size)
self.protocol.disconnect()
def run(self): def run(self):
"""Run programmer, main entry point.""" """Run programmer, main entry point."""
@ -190,7 +199,9 @@ class StcGal:
try: try:
if self.opts.code_image: if self.opts.code_image:
self.program_mcu() self.program_mcu()
return 0 elif self.opts.erase:
self.erase_mcu()
else:
self.protocol.disconnect() self.protocol.disconnect()
return 0 return 0
except NameError as ex: except NameError as ex:
@ -223,8 +234,10 @@ def cli():
parser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter, parser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter,
description="stcgal {} - an STC MCU ISP flash tool\n".format(stcgal.__version__) + description="stcgal {} - an STC MCU ISP flash tool\n".format(stcgal.__version__) +
"(C) 2014-2018 Grigori Goronzy and others\nhttps://github.com/grigorig/stcgal") "(C) 2014-2018 Grigori Goronzy and others\nhttps://github.com/grigorig/stcgal")
parser.add_argument("code_image", help="code segment file to flash (BIN/HEX)", type=argparse.FileType("rb"), nargs='?') exclusives = parser.add_mutually_exclusive_group()
exclusives.add_argument("code_image", help="code segment file to flash (BIN/HEX)", type=argparse.FileType("rb"), nargs='?')
parser.add_argument("eeprom_image", help="eeprom segment file to flash (BIN/HEX)", type=argparse.FileType("rb"), nargs='?') parser.add_argument("eeprom_image", help="eeprom segment file to flash (BIN/HEX)", type=argparse.FileType("rb"), nargs='?')
exclusives.add_argument("-e", "--erase", help="only erase flash memory", action="store_true")
parser.add_argument("-a", "--autoreset", help="cycle power automatically by asserting DTR", action="store_true") parser.add_argument("-a", "--autoreset", help="cycle power automatically by asserting DTR", action="store_true")
parser.add_argument("-r", "--resetcmd", help="shell command for board power-cycling (instead of DTR assertion)", action="store") parser.add_argument("-r", "--resetcmd", help="shell command for board power-cycling (instead of DTR assertion)", action="store")
parser.add_argument("-P", "--protocol", help="protocol version (default: auto)", parser.add_argument("-P", "--protocol", help="protocol version (default: auto)",