69 lines
3.1 KiB
Python
69 lines
3.1 KiB
Python
# Code to configure miscellaneous chips
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#
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# Copyright (C) 2017,2018 Kevin O'Connor <kevin@koconnor.net>
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#
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# This file may be distributed under the terms of the GNU GPLv3 license.
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PIN_MIN_TIME = 0.100
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class PrinterOutputPin:
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def __init__(self, config):
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self.printer = config.get_printer()
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ppins = self.printer.lookup_object('pins')
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self.is_pwm = config.getboolean('pwm', False)
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if self.is_pwm:
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self.mcu_pin = ppins.setup_pin('pwm', config.get('pin'))
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cycle_time = config.getfloat('cycle_time', 0.100, above=0.)
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hardware_pwm = config.getboolean('hardware_pwm', False)
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self.mcu_pin.setup_cycle_time(cycle_time, hardware_pwm)
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self.scale = config.getfloat('scale', 1., above=0.)
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self.last_cycle_time = self.default_cycle_time = cycle_time
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else:
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self.mcu_pin = ppins.setup_pin('digital_out', config.get('pin'))
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self.scale = 1.
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self.mcu_pin.setup_max_duration(0.)
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self.last_print_time = 0.
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static_value = config.getfloat('static_value', None,
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minval=0., maxval=self.scale)
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if static_value is not None:
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self.last_value = static_value / self.scale
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self.mcu_pin.setup_start_value(
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self.last_value, self.last_value, True)
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else:
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self.last_value = config.getfloat(
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'value', 0., minval=0., maxval=self.scale) / self.scale
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shutdown_value = config.getfloat(
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'shutdown_value', 0., minval=0., maxval=self.scale) / self.scale
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self.mcu_pin.setup_start_value(self.last_value, shutdown_value)
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pin_name = config.get_name().split()[1]
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gcode = self.printer.lookup_object('gcode')
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gcode.register_mux_command("SET_PIN", "PIN", pin_name,
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self.cmd_SET_PIN,
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desc=self.cmd_SET_PIN_help)
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def get_status(self, eventtime):
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return {'value': self.last_value}
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cmd_SET_PIN_help = "Set the value of an output pin"
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def cmd_SET_PIN(self, gcmd):
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value = gcmd.get_float('VALUE', minval=0., maxval=self.scale)
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value /= self.scale
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print_time = self.printer.lookup_object('toolhead').get_last_move_time()
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print_time = max(print_time, self.last_print_time + PIN_MIN_TIME)
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if self.is_pwm:
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cycle_time = gcmd.get_float('CYCLE_TIME', self.default_cycle_time,
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above=0.)
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if value == self.last_value and cycle_time == self.last_cycle_time:
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return
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self.mcu_pin.set_pwm(print_time, value, cycle_time)
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self.last_cycle_time = cycle_time
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else:
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if value == self.last_value:
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return
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if value not in [0., 1.]:
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raise gcmd.error("Invalid pin value")
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self.mcu_pin.set_digital(print_time, value)
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self.last_value = value
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self.last_print_time = print_time
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def load_config_prefix(config):
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return PrinterOutputPin(config)
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