ManuelW/grbl-LPC-CoreXY
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Updated README. Max step rate back at 30kHz. Acceleration minor bug fix.

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- Returned the max step rate to 30kHz. The new arc algorithm works uses
so much less CPU overhead, because the segments are longer, that the
planner has no problem computing through them.

- Fixed an issue with the acceleration independence scaling. Should now
work with accelerations above 400mm/sec^2 or so.

- Updated README
This commit is contained in:
Sonny Jeon
2012-12-21 08:51:36 -07:00
parent 3dfffa622d
commit 5e7c25d480
4 changed files with 15 additions and 12 deletions
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4
config.h
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@ -114,7 +114,7 @@
// frequency goes up. So there will be little left for other processes like arcs.
// In future versions, more work will be done to increase the step rates but still stay around
// 20kHz by performing two steps per step event, rather than just one.
#define ISR_TICKS_PER_SECOND 20000L // Integer (Hz)
#define ISR_TICKS_PER_SECOND 30000L // Integer (Hz)
// The temporal resolution of the acceleration management subsystem. Higher number give smoother
// acceleration but may impact performance. If you run at very high feedrates (>15kHz or so) and
@ -122,7 +122,7 @@
// profiles and how the stepper program actually performs them. The correct value for this parameter
// is machine dependent, so it's advised to set this only as high as needed. Approximate successful
// values can widely range from 50 to 200 or more. Cannot be greater than ISR_TICKS_PER_SECOND/2.
#define ACCELERATION_TICKS_PER_SECOND 100L
#define ACCELERATION_TICKS_PER_SECOND 120L
// NOTE: Make sure this value is less than 256, when adjusting both dependent parameters.
#define INTERRUPTS_PER_ACCELERATION_TICK (ISR_TICKS_PER_SECOND/ACCELERATION_TICKS_PER_SECOND)