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Add option to invert pin reset logic

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This commit is contained in:
Fabio Battaglia 2023-11-11 10:31:18 +01:00
parent 6e8e73669e
commit 38dfb08d98
3 changed files with 13 additions and 8 deletions
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1
doc/USAGE.md
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@ -22,6 +22,7 @@ options:
-h, --help show this help message and exit -h, --help show this help message and exit
-e, --erase only erase flash memory -e, --erase only erase flash memory
-a, --autoreset cycle power automatically by asserting DTR -a, --autoreset cycle power automatically by asserting DTR
-i, --invertreset invert pin reset logic
-A {dtr,rts}, --resetpin {dtr,rts} -A {dtr,rts}, --resetpin {dtr,rts}
pin to hold down when using --autoreset (default: DTR) pin to hold down when using --autoreset (default: DTR)
-r RESETCMD, --resetcmd RESETCMD -r RESETCMD, --resetcmd RESETCMD

3
stcgal/frontend.py
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@ -183,7 +183,7 @@ class StcGal:
return 0 return 0
try: try:
self.protocol.connect(autoreset=self.opts.autoreset, resetcmd=self.opts.resetcmd, resetpin=self.opts.resetpin) self.protocol.connect(autoreset=self.opts.autoreset, resetcmd=self.opts.resetcmd, resetpin=self.opts.resetpin, invertreset=self.opts.invertreset)
if isinstance(self.protocol, StcAutoProtocol): if isinstance(self.protocol, StcAutoProtocol):
if not self.protocol.protocol_name: if not self.protocol.protocol_name:
raise StcProtocolException("cannot detect protocol") raise StcProtocolException("cannot detect protocol")
@ -264,6 +264,7 @@ def cli():
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("-A", "--resetpin", help="pin to hold down when using --autoreset (default: DTR)", parser.add_argument("-A", "--resetpin", help="pin to hold down when using --autoreset (default: DTR)",
choices=["dtr", "rts"], default="dtr") choices=["dtr", "rts"], default="dtr")
parser.add_argument("-i", "--invertreset", help="invert autoreset pin logic", 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)",
choices=["stc89", "stc89a", "stc12a", "stc12b", "stc12", "stc15a", "stc15", "stc8", "stc8d", "stc8g", "usb15", "auto"], default="auto") choices=["stc89", "stc89a", "stc12a", "stc12b", "stc12", "stc15a", "stc15", "stc8", "stc8d", "stc8g", "usb15", "auto"], default="auto")

17
stcgal/protocols.py
View File

@ -265,22 +265,25 @@ class StcBaseProtocol(ABC):
def set_option(self, name, value): def set_option(self, name, value):
self.options.set_option(name, value) self.options.set_option(name, value)
def reset_device(self, resetcmd=False, resetpin=False): def reset_device(self, resetcmd=False, resetpin=False, invertreset=False):
if not resetcmd: if not resetcmd:
print("Cycling power: ", end="") print("Cycling power: ", end="")
sys.stdout.flush() sys.stdout.flush()
# If invertreset is enabled, start with pin at low
pin_state = False if invertreset else True
if resetpin == "rts": if resetpin == "rts":
self.ser.setRTS(True) self.ser.setRTS(pin_state)
else: else:
self.ser.setDTR(True) self.ser.setDTR(pin_state)
time.sleep(0.25) time.sleep(0.25)
if resetpin == "rts": if resetpin == "rts":
self.ser.setRTS(False) self.ser.setRTS(not pin_state)
else: else:
self.ser.setDTR(False) self.ser.setDTR(not pin_state)
time.sleep(0.030) time.sleep(0.030)
print("done") print("done")
@ -291,7 +294,7 @@ class StcBaseProtocol(ABC):
print("Waiting for MCU: ", end="") print("Waiting for MCU: ", end="")
sys.stdout.flush() sys.stdout.flush()
def connect(self, autoreset=False, resetcmd=False, resetpin=False): def connect(self, autoreset=False, resetcmd=False, resetpin=False, invertreset=False):
"""Connect to MCU and initialize communication. """Connect to MCU and initialize communication.
Set up serial port, send sync sequence and get part info. Set up serial port, send sync sequence and get part info.
@ -310,7 +313,7 @@ class StcBaseProtocol(ABC):
self.ser.flushInput() self.ser.flushInput()
if autoreset: if autoreset:
self.reset_device(resetcmd, resetpin) self.reset_device(resetcmd, resetpin, invertreset)
else: else:
print("Waiting for MCU, please cycle power: ", end="") print("Waiting for MCU, please cycle power: ", end="")
sys.stdout.flush() sys.stdout.flush()