klipper-dgus/klippy/extras/samd_sercom.py

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# SAMD Sercom configuration
#
# Copyright (C) 2019 Florian Heilmann <Florian.Heilmann@gmx.net>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
class SamdSERCOM:
def __init__(self, config):
self.printer = config.get_printer()
self.name = config.get_name().split()[1]
ppins = self.printer.lookup_object("pins")
try:
int(self.name)
except ValueError:
raise ppins.error("%s: SERCOM name must be an integer" % (
config.get_name(),))
self.tx_pin = config.get("tx_pin")
self.rx_pin = config.get("rx_pin", None)
self.clk_pin = config.get("clk_pin")
tx_pin_params = ppins.lookup_pin(self.tx_pin)
self.mcu = tx_pin_params['chip']
self.mcu.add_config_cmd(
"set_sercom_pin sercom_id=%s pin_type=%d pin=%s" % (
self.name, 0, self.tx_pin))
clk_pin_params = ppins.lookup_pin(self.clk_pin)
if self.mcu is not clk_pin_params['chip']:
raise ppins.error("%s: SERCOM pins must be on same mcu" % (
config.get_name(),))
self.mcu.add_config_cmd(
"set_sercom_pin sercom_id=%s pin_type=%d pin=%s" % (
self.name, 2, self.clk_pin))
if self.rx_pin:
rx_pin_params = ppins.lookup_pin(self.rx_pin)
if self.mcu is not rx_pin_params['chip']:
raise ppins.error("%s: SERCOM pins must be on same mcu" % (
config.get_name(),))
self.mcu.add_config_cmd(
"set_sercom_pin sercom_id=%s pin_type=%d pin=%s" % (
self.name, 1, self.rx_pin))
def load_config_prefix(config):
return SamdSERCOM(config)