ManuelW/grbl-LPC-CoreXY
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Added step pulse delay after direction set (Compile-time option only). Updated read me.

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Added a compile-time only experimental feature that creates a
user-specified time delay between a step pulse and a direction pin set
(in config.h). This is for users with hardware-specific issues
(opto-couplers) that need more than a few microseconds between events,
which can lead to slowly progressing step drift after many many
direction changes. We suggest to try the hack/fix posted in the Wiki
before using this, as this experimental feature may cause Grbl to take
a performance hit at high step rates and about complex curves.
This commit is contained in:
Sonny Jeon
2012-06-26 21:48:42 -06:00
parent d3be216931
commit 79e0fd594b
3 changed files with 72 additions and 21 deletions
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@ -19,9 +19,11 @@ Grbl includes full acceleration management with look ahead. That means the contr
- Program stop(M0,M1*,M2,M30) initial support. Optional stop to do.
- System reset re-initializes grbl without resetting the Arduino and retains machine/home position and work coordinates.
- Restructured planner and stepper modules to become independent and ready for future features.
- Planned features: Jog mode, status reporting, runtime settings such as toggling block delete, XON/XOFF flow control.
- Reduce serial read buffer to 128 characters and increased write buffer to 64 characters.
- Misc bug fixes and removed deprecated acceleration enabled code.
- Reduced serial read buffer to 128 characters and increased write buffer to 64 characters.
- Misc bug fixes and removed deprecated acceleration enabled code.
- Planned features: Jog mode, full-featured status reporting, runtime settings such as toggling block delete.
- Advanced compile-time options: Up to 6 work coordinate systems(G54-G59), XON/XOFF flow control (limited support), direction and step pulse time delay.
*Important note for Atmega 168 users:* Going forward, support for Atmega 168 will be dropped due to its limited memory and speed. However, legacy Grbl v0.51 "in the branch called 'v0_51' is still available for use.