- Cleaned up and organized pin mapping concept by @elmom.
- pin_map.h allows for user-supplied pin mapping and port vector
definitions in a centralized file. With more processor types, more
definitions could be added.
- Increased g-code parser line buffer from 50 to 70 characters. Should
fix most all issues with long arc statements, provided that they are 8
digits(float) long only.
- Added a line buffer overflow feedback error to let the user know when
it encounters this problem. Resets the line whenever this occurs.
(Thanks @BHSPitMonkey!)
- Fixed an issue (hopefully) with slow trailing steps after a
triangular velocity profile move. Sets the trapezoid tick cycle counter
to the correct value for an accurate reproduction of the deceleration
curve. Keeps it from arriving too early to the target position, which
causes the slow trailing steps.
- Added Zen Toolworks 7x7 to default settings.
- Updated readme with new edge build.
Because the Downloads section has been removed, added a builds folder
for users to download pre-compiled firmware without needing to compile
it themselves.
- Fixed a bug when after moving to a pre-defined position G28/G30, the
next move would go someplace unexpected. The g-code parser position
vector wasn't getting updated.
- Updated interface protocol to play nicer with interface programs. All
Grbl responses beginning with '$' signifies a setting. Bracketed '[]'
responses are feedback messages containing either state, parameter, or
general messages. Chevron '<>' response are from the real-time status
messages, i.e. position.
- M2 Program end command was causing a system alarm. Fixed. Thanks
@blinkenlight !
- The homing sequence is now a compile-time option, where a user can
choose which axes(s) move in sequence during the search phase. Up to 3
sequences. Works with the locating phase and the pull-off maneuver.
- New defaults.h file to store user generated default settings for
different machines. Mainly to be used as a central repo, but each set
may be select to be compiled in as a config.h define.
- Added Grbl state (Idle, Running, Queued, Hold, etc) to the real-time
status reporting feature as feedback to the user of what Grbl is doing.
Updated the help message to reflect this change.
- Removed switches (dry run, block delete, single block mode). To keep
Grbl simple and not muddled up from things that can easily be taken
care of by an external interface, these were removed.
- Check g-code mode was retained, but the command was moved to '$C'
from '$S0'.
- Refactored system states to be more clear and concise. Alarm locks
processes when position is unknown to indicate to user something has
gone wrong.
- Changed mc_alarm to mc_reset, which now manages the system reset
function. Centralizes it.
- Renamed '$X' kill homing lock to kill alarm lock.
- Created an alarm error reporting method to clear up what is an alarm:
message vs a status error: message. For GUIs mainly. Alarm codes are
negative. Status codes are positive.
- Serial baud support upto 115200. Previous baudrate calc was unstable
for 57600 and above.
- Alarm state locks out all g-code blocks, including startup scripts,
but allows user to access settings and internal commands. For example,
to disable hard limits, if they are problematic.
- Hard limits do not respond in an alarm state.
- Fixed a problem with the hard limit interrupt during the homing
cycle. The interrupt register is still active during the homing cycle
and still signal the interrupt to trigger when re-enabled. Instead,
just disabled the register.
- Homing rate adjusted. All axes move at homing seek rate, regardless
of how many axes move at the same time. This is unlike how the stepper
module does it as a point to point rate.
- New config.h settings to disable the homing rate adjustment and the
force homing upon powerup.
- Reduced the number of startup lines back down to 2 from 3. This
discourages users from placing motion block in there, which can be very
dangerous.
- Startup blocks now run only after an alarm-free reset or after a
homing cycle. Does not run when $X kill is called. For satefy reasons
- Fixed a minor issue where the seek rates would not immediately be
used and only would after a reset. Should update live now.
- A full circle IJ offset CCW arc would not do anything. Fixed bug via
a simple if-then statement.
- Radius mode tweaks to check for negative value in sqrt() rather than
isnan() it. Error report updated to indicate what actually happened.
- Added some more notes to config.h.
- Added the ability to override some of the #defines around Grbl in
config.h, like planner buffer size, line buffer size, serial
send/receive buffers. Mainly to centralize the configurations to be
able to port to different microcontrollers later.
- Removed the dry run switch. It was getting overly complicated for
what it needed to do. In practice, single block mode and feed rate
overrides (coming in next release) does a much better job with dry runs
than 'dry run'.
- Trimmed all of Grbl's messages from help, status, feedback to
settings. Saved 0.6KB+ of flash space that could be used for v0.9
features.
- Removed some settings inits when set. Will depend on user to power
cycle to get some of these to reload.
- Fixed a bug with settings version not re-writing old settings, when
it should. Thanks Alden!
- Increased the number of startup blocks to 3 for no good reason other
than it doesn't increase the flash size.
- Removed the purge buffer command and replaced with an disable homing
lock command.
- Homing now blocks all g-code commands (not system commands) until the
homing cycle has been performed or the disable homing lock is sent.
Homing is required upon startup or if Grbl loses it position. This is
for safety reasons.
- Cleaned up some of the Grbl states and re-organized it to be little
more cohesive.
- Cleaned up the feedback and status messages to not use so much flash
space, as it's a premium now.
- Check g-code and dry run switches how are mutually exclusive and
can't be enabled when the other is. And automatically resets Grbl when
disabled.
- Some bug fixes and other minor tweaks.
- To make managing the code easier and to help ensure a user starts
with a fresh reset, the functionality of check g-code and dry run has
been changed to automatically perform a soft reset when toggled off.
Position will not be lost, unless there is a cycle active. Feed hold
before toggling off it needed.
This is mainly a safety issue. If a user dry runs a program and kills
it mid-program, and then restarts it thinking to run it as normal, the
g-code modes that we're set may not be what they expect, and very bad
things can happen.
- NOTE: Grbl is at 83.5% of flash capacity. Not a lot of room left, but
I think we can squeeze in some more!
