91 lines
3.9 KiB
Python
91 lines
3.9 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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import pins
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######################################################################
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# Output pins
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######################################################################
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class PrinterStaticDigitalOut:
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def __init__(self, printer, config):
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pin_list = [pin.strip() for pin in config.get('pins').split(',')]
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for pin_desc in pin_list:
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mcu_pin = pins.setup_pin(printer, 'digital_out', pin_desc)
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mcu_pin.setup_start_value(1, 1, True)
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PIN_MIN_TIME = 0.100
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class PrinterPin:
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def __init__(self, printer, config):
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self.printer = printer
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self.is_pwm = 'pwm' in config.get_name().split()[0]
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if self.is_pwm:
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self.mcu_pin = pins.setup_pin(printer, '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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else:
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self.mcu_pin = pins.setup_pin(
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printer, '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_value_time = 0.
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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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self.is_static = config.get_name().startswith('static_')
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if self.is_static:
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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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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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self.gcode = printer.lookup_object('gcode')
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self.gcode.register_command("SET_PIN", self.cmd_SET_PIN,
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desc=self.cmd_SET_PIN_help)
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cmd_SET_PIN_help = "Set the value of an output pin"
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def cmd_SET_PIN(self, params):
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pin_name = self.gcode.get_str('PIN', params)
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pin = self.printer.lookup_object('pin ' + pin_name, None)
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if pin is not self:
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if pin is None:
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raise self.gcode.error("Pin not configured")
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return pin.cmd_SET_PIN(params)
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if self.is_static:
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raise self.gcode.error("Static pin can not be changed at run-time")
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value = self.gcode.get_float('VALUE', params) / self.scale
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if value == self.last_value:
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return
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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_value_time + PIN_MIN_TIME)
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if self.is_pwm:
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if value < 0. or value > 1.:
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raise self.gcode.error("Invalid pin value")
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self.mcu_pin.set_pwm(print_time, value)
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else:
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if value not in [0., 1.]:
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raise self.gcode.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_value_time = print_time
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######################################################################
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# Setup
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######################################################################
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def add_printer_objects(printer, config):
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for s in config.get_prefix_sections('static_digital_output '):
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printer.add_object(s.section, PrinterStaticDigitalOut(printer, s))
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for s in config.get_prefix_sections('digital_output '):
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printer.add_object('pin' + s.section[14:], PrinterPin(printer, s))
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for s in config.get_prefix_sections('static_pwm_output '):
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printer.add_object('pin' + s.section[17:], PrinterPin(printer, s))
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for s in config.get_prefix_sections('pwm_output '):
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printer.add_object('pin' + s.section[10:], PrinterPin(printer, s))
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