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tmc: Add support for virtual enable pins

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Add support for enabling the stepper via the communication channel.
This improves support for boards with a shared enable line.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2019-06-12 23:28:22 -04:00 • committed by KevinOConnor
parent 041831f93a
commit 7702f0a027
7 changed files with 67 additions and 18 deletions
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25
config/example-extras.cfg
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@ -975,7 +975,10 @@
# Configure a TMC2130 stepper motor driver via SPI bus. To use this
# feature, define a config section with a "tmc2130" prefix followed by
# the name of the corresponding stepper config section (for example,
# "[tmc2130 stepper_x]").
# "[tmc2130 stepper_x]"). This also creates a
# "tmc2130_stepper_x:virtual_enable" virtual pin which may be used as
# the stepper's enable_pin (for enabling the driver via an SPI
# message).
#[tmc2130 stepper_x]
#cs_pin:
# The pin corresponding to the TMC2130 chip select line. This pin
@ -1038,7 +1041,10 @@
# Configure a TMC2208 (or TMC2224) stepper motor driver via single
# wire UART. To use this feature, define a config section with a
# "tmc2208" prefix followed by the name of the corresponding stepper
# config section (for example, "[tmc2208 stepper_x]").
# config section (for example, "[tmc2208 stepper_x]"). This also
# creates a "tmc2208_stepper_x:virtual_enable" virtual pin which may
# be used as the stepper's enable_pin (for enabling the driver via a
# UART message).
#[tmc2208 stepper_x]
#uart_pin:
# The pin connected to the TMC2208 PDN_UART line. This parameter
@ -1096,7 +1102,10 @@
# Configure a TMC2209 stepper motor driver via single wire UART. To
# use this feature, define a config section with a "tmc2209" prefix
# followed by the name of the corresponding stepper config section
# (for example, "[tmc2209 stepper_x]").
# (for example, "[tmc2209 stepper_x]"). This also creates a
# "tmc2209_stepper_x:virtual_enable" virtual pin which may be used as
# the stepper's enable_pin (for enabling the driver via a UART
# message).
#[tmc2209 stepper_x]
#uart_pin:
#tx_pin:
@ -1132,7 +1141,10 @@
# Configure a TMC2660 stepper motor driver via SPI bus. To use this
# feature, define a config section with a tmc2660 prefix followed by
# the name of the corresponding stepper config section (for example,
# "[tmc2660 stepper_x]").
# "[tmc2660 stepper_x]"). This also creates a
# "tmc2660_stepper_x:virtual_enable" virtual pin which may be used as
# the stepper's enable_pin (for enabling the driver via an SPI
# message).
#[tmc2660 stepper_x]
#cs_pin:
# The pin corresponding to the TMC2660 chip select line. This pin
@ -1204,7 +1216,10 @@
# Configure a TMC5160 stepper motor driver via SPI bus. To use this
# feature, define a config section with a "tmc5160" prefix followed by
# the name of the corresponding stepper config section (for example,
# "[tmc5160 stepper_x]").
# "[tmc5160 stepper_x]"). This also creates a
# "tmc5160_stepper_x:virtual_enable" virtual pin which may be used as
# the stepper's enable_pin (for enabling the driver via an SPI
# message).
#[tmc5160 stepper_x]
#cs_pin:
# The pin corresponding to the TMC5160 chip select line. This pin