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# Code to configure miscellaneous chips
#
# Copyright (C) 2017 Kevin O'Connor <kevin@koconnor.net>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
import pins
######################################################################
# Statically configured output pins
######################################################################
class PrinterStaticDigitalOut:
def __init__(self, printer, config):
pin_list = [pin.strip() for pin in config.get('pins').split(',')]
for pin_desc in pin_list:
mcu_pin = pins.setup_pin(printer, 'digital_out', pin_desc)
mcu_pin.setup_static()
class PrinterStaticPWM:
def __init__(self, printer, config):
mcu_pwm = pins.setup_pin(printer, 'pwm', config.get('pin'))
mcu_pwm.setup_max_duration(0.)
hard_pwm = config.getint('hard_pwm', None, minval=1)
if hard_pwm is None:
mcu_pwm.setup_cycle_time(config.getfloat(
'cycle_time', 0.100, above=0.))
else:
mcu_pwm.setup_hard_pwm(hard_pwm)
scale = config.getfloat('scale', 1., above=0.)
value = config.getfloat('value', minval=0., maxval=scale)
mcu_pwm.setup_static_pwm(value / scale)
######################################################################
# AD5206 digipot
######################################################################
class ad5206:
def __init__(self, printer, config):
enable_pin_params = pins.get_printer_pins(printer).parse_pin_desc(
config.get('enable_pin'))
self.mcu = enable_pin_params['chip']
self.pin = enable_pin_params['pin']
self.mcu.add_config_object(self)
scale = config.getfloat('scale', 1., above=0.)
self.channels = [None] * 6
for i in range(len(self.channels)):
val = config.getfloat('channel_%d' % (i+1,), None,
minval=0., maxval=scale)
if val is not None:
self.channels[i] = int(val * 256. / scale + .5)
def build_config(self):
for i, val in enumerate(self.channels):
if val is not None:
self.mcu.add_config_cmd(
"send_spi_message pin=%s msg=%02x%02x" % (self.pin, i, val))
######################################################################
# Setup
######################################################################
def add_printer_objects(printer, config):
for s in config.get_prefix_sections('static_digital_output '):
printer.add_object(s.section, PrinterStaticDigitalOut(printer, s))
for s in config.get_prefix_sections('static_pwm_output '):
printer.add_object(s.section, PrinterStaticPWM(printer, s))
for s in config.get_prefix_sections('ad5206 '):
printer.add_object(s.section, ad5206(printer, s))
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