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| author | Kevin O'Connor <kevin@koconnor.net> | 2016-06-13 19:42:34 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2016-06-14 14:24:14 -0400 |
| commit | 6220cdda9247391b02007d4e8d3c640eca962baa (patch) | |
| tree | 05c8c28f3c4071407ac4537d7c5a97990b78b67a /src/Kconfig | |
| parent | da305e6b61efab8c16d324723859b318fb1979a9 (diff) | |
| download | kutter-6220cdda9247391b02007d4e8d3c640eca962baa.tar.gz kutter-6220cdda9247391b02007d4e8d3c640eca962baa.tar.xz kutter-6220cdda9247391b02007d4e8d3c640eca962baa.zip | |
stepper: Support rescheduling of step events on faster MCUs
On faster MCUs the step and unstep events may be too close for the
stepper motor driver. Add a CONFIG_NO_UNSTEP_DELAY build option and
support the case where it is not set. This allows faster MCUs to
schedule two events for each step (one for the step and one for the
unstep).
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'src/Kconfig')
| -rw-r--r-- | src/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/Kconfig b/src/Kconfig index db265c96..1a326d06 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -25,6 +25,13 @@ config HAVE_GPIO_HARD_PWM bool default n +config NO_UNSTEP_DELAY + # Slow micro-controllers do not require a delay before returning a + # stepper step pin to its default level. A board can enable this + # option to optimize the stepper_event() handler in this case. + bool + default n + config INLINE_STEPPER_HACK # Enables gcc to inline stepper_event() into the main timer irq handler bool |