klipper-dgus/klippy/extras/tmc2209.py

96 lines
3.2 KiB
Python

# TMC2209 configuration
#
# Copyright (C) 2019 Stephan Oelze <stephan.oelze@gmail.com>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
import tmc2208, tmc2130, tmc, tmc_uart
TMC_FREQUENCY=12000000.
Registers = dict(tmc2208.Registers)
Registers.update({
"TCOOLTHRS": 0x14,
"COOLCONF": 0x42,
"SGTHRS": 0x40,
"SG_RESULT": 0x41
})
ReadRegisters = tmc2208.ReadRegisters + ["SG_RESULT"]
Fields = dict(tmc2208.Fields)
Fields["COOLCONF"] = {
"semin": 0x0F << 0,
"seup": 0x03 << 5,
"semax": 0x0F << 8,
"sedn": 0x03 << 13,
"seimin": 0x01 << 15
}
Fields["IOIN"] = {
"ENN": 0x01 << 0,
"MS1": 0x01 << 2,
"MS2": 0x01 << 3,
"DIAG": 0x01 << 4,
"PDN_UART": 0x01 << 6,
"STEP": 0x01 << 7,
"SPREAD_EN": 0x01 << 8,
"DIR": 0x01 << 9,
"VERSION": 0xff << 24
}
Fields["SGTHRS"] = {
"SGTHRS": 0xFF << 0
}
Fields["SG_RESULT"] = {
"SG_RESULT": 0x3FF << 0
}
Fields["TCOOLTHRS"] = {
"TCOOLTHRS": 0xfffff
}
FieldFormatters = dict(tmc2208.FieldFormatters)
######################################################################
# TMC2209 printer object
######################################################################
class TMC2209:
def __init__(self, config):
# Setup mcu communication
self.fields = tmc.FieldHelper(Fields, tmc2208.SignedFields,
FieldFormatters)
self.mcu_tmc = tmc_uart.MCU_TMC_uart(config, Registers, self.fields, 3)
# Allow virtual pins to be created
diag_pin = config.get('diag_pin', None)
tmc.TMCVirtualPinHelper(config, self.mcu_tmc, diag_pin)
# Register commands
cmdhelper = tmc.TMCCommandHelper(config, self.mcu_tmc)
cmdhelper.setup_register_dump(ReadRegisters)
# Setup basic register values
self.fields.set_field("pdn_disable", True)
self.fields.set_field("mstep_reg_select", True)
self.fields.set_field("multistep_filt", True)
tmc2130.TMCCurrentHelper(config, self.mcu_tmc)
mh = tmc.TMCMicrostepHelper(config, self.mcu_tmc)
self.get_microsteps = mh.get_microsteps
self.get_phase = mh.get_phase
tmc.TMCStealthchopHelper(config, self.mcu_tmc, TMC_FREQUENCY)
# Allow other registers to be set from the config
set_config_field = self.fields.set_config_field
set_config_field(config, "toff", 3)
set_config_field(config, "hstrt", 5)
set_config_field(config, "hend", 0)
set_config_field(config, "TBL", 2)
set_config_field(config, "IHOLDDELAY", 8)
set_config_field(config, "TPOWERDOWN", 20)
set_config_field(config, "PWM_OFS", 36)
set_config_field(config, "PWM_GRAD", 14)
set_config_field(config, "pwm_freq", 1)
set_config_field(config, "pwm_autoscale", True)
set_config_field(config, "pwm_autograd", True)
set_config_field(config, "PWM_REG", 8)
set_config_field(config, "PWM_LIM", 12)
set_config_field(config, "SGTHRS", 0)
def load_config_prefix(config):
return TMC2209(config)