Sergey Pastor / grbl_1_

I'm trying to port GRBL 1.1 to the STM32F746 chip. Tell me the solution, thanks.

README.md@0:9dcf85d9b2f3, 2017-09-04 (annotated)

Committer:
Sergunb
Date:
Mon Sep 04 12:05:05 2017 +0000
Revision:
0:9dcf85d9b2f3
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Sergunb 0:9dcf85d9b2f3 1 ![GitHub Logo](https://github.com/gnea/gnea-Media/blob/master/Grbl%20Logo/Grbl%20Logo%20250px.png?raw=true)
Sergunb 0:9dcf85d9b2f3 2
Sergunb 0:9dcf85d9b2f3 3 ***
Sergunb 0:9dcf85d9b2f3 4 _Click the `Release` tab to download pre-compiled `.hex` files or just [click here](https://github.com/gnea/grbl/releases)_
Sergunb 0:9dcf85d9b2f3 5 ***
Sergunb 0:9dcf85d9b2f3 6 Grbl is a no-compromise, high performance, low cost alternative to parallel-port-based motion control for CNC milling. This version of Grbl runs on an Arduino with a 328p processor (Uno, Duemilanove, Nano, Micro, etc).
Sergunb 0:9dcf85d9b2f3 7
Sergunb 0:9dcf85d9b2f3 8 The controller is written in highly optimized C utilizing every clever feature of the AVR-chips to achieve precise timing and asynchronous operation. It is able to maintain up to 30kHz of stable, jitter free control pulses.
Sergunb 0:9dcf85d9b2f3 9
Sergunb 0:9dcf85d9b2f3 10 It accepts standards-compliant g-code and has been tested with the output of several CAM tools with no problems. Arcs, circles and helical motion are fully supported, as well as, all other primary g-code commands. Macro functions, variables, and most canned cycles are not supported, but we think GUIs can do a much better job at translating them into straight g-code anyhow.
Sergunb 0:9dcf85d9b2f3 11
Sergunb 0:9dcf85d9b2f3 12 Grbl includes full acceleration management with look ahead. That means the controller will look up to 16 motions into the future and plan its velocities ahead to deliver smooth acceleration and jerk-free cornering.
Sergunb 0:9dcf85d9b2f3 13
Sergunb 0:9dcf85d9b2f3 14 * [Licensing](https://github.com/gnea/grbl/wiki/Licensing): Grbl is free software, released under the GPLv3 license.
Sergunb 0:9dcf85d9b2f3 15
Sergunb 0:9dcf85d9b2f3 16 * For more information and help, check out our **[Wiki pages!](https://github.com/gnea/grbl/wiki)** If you find that the information is out-dated, please to help us keep it updated by editing it or notifying our community! Thanks!
Sergunb 0:9dcf85d9b2f3 17
Sergunb 0:9dcf85d9b2f3 18 * Lead Developer: Sungeun "Sonny" Jeon, Ph.D. (USA) aka @chamnit
Sergunb 0:9dcf85d9b2f3 19
Sergunb 0:9dcf85d9b2f3 20 * Built on the wonderful Grbl v0.6 (2011) firmware written by Simen Svale Skogsrud (Norway).
Sergunb 0:9dcf85d9b2f3 21
Sergunb 0:9dcf85d9b2f3 22 ***
Sergunb 0:9dcf85d9b2f3 23
Sergunb 0:9dcf85d9b2f3 24 ### Official Supporters of the Grbl CNC Project
Sergunb 0:9dcf85d9b2f3 25 ![Official Supporters](https://github.com/gnea/gnea-Media/blob/master/Contributors.png?raw=true)
Sergunb 0:9dcf85d9b2f3 26
Sergunb 0:9dcf85d9b2f3 27
Sergunb 0:9dcf85d9b2f3 28 ***
Sergunb 0:9dcf85d9b2f3 29
Sergunb 0:9dcf85d9b2f3 30 ## Update Summary for v1.1
Sergunb 0:9dcf85d9b2f3 31 - **IMPORTANT:** Your EEPROM will be wiped and restored with new settings. This is due to the addition of two new spindle speed '$' settings.
Sergunb 0:9dcf85d9b2f3 32
Sergunb 0:9dcf85d9b2f3 33 - **Real-time Overrides** : Alters the machine running state immediately with feed, rapid, spindle speed, spindle stop, and coolant toggle controls. This awesome new feature is common only on industrial machines, often used to optimize speeds and feeds while a job is running. Most hobby CNC's try to mimic this behavior, but usually have large amounts of lag. Grbl executes overrides in realtime and within tens of milliseconds.
Sergunb 0:9dcf85d9b2f3 34
Sergunb 0:9dcf85d9b2f3 35 - **Jogging Mode** : The new jogging commands are independent of the g-code parser, so that the parser state doesn't get altered and cause a potential crash if not restored properly. Documentation is included on how this works and how it can be used to control your machine via a joystick or rotary dial with a low-latency, satisfying response.
Sergunb 0:9dcf85d9b2f3 36
Sergunb 0:9dcf85d9b2f3 37 - **Laser Mode** : The new "laser" mode will cause Grbl to move continuously through consecutive G1, G2, and G3 commands with spindle speed changes. When "laser" mode is disabled, Grbl will instead come to a stop to ensure a spindle comes up to speed properly. Spindle speed overrides also work with laser mode so you can tweak the laser power, if you need to during the job. Switch between "laser" mode and "normal" mode via a `$` setting.
Sergunb 0:9dcf85d9b2f3 38
Sergunb 0:9dcf85d9b2f3 39 - **Dynamic Laser Power Scaling with Speed** : If your machine has low accelerations, Grbl will automagically scale the laser power based on how fast Grbl is traveling, so you won't have burnt corners when your CNC has to make a turn! Enabled by the `M4` spindle CCW command when laser mode is enabled!
Sergunb 0:9dcf85d9b2f3 40
Sergunb 0:9dcf85d9b2f3 41 - **Sleep Mode** : Grbl may now be put to "sleep" via a `$SLP` command. This will disable everything, including the stepper drivers. Nice to have when you are leaving your machine unattended and want to power down everything automatically. Only a reset exits the sleep state.
Sergunb 0:9dcf85d9b2f3 42
Sergunb 0:9dcf85d9b2f3 43 - **Significant Interface Improvements**: Tweaked to increase overall performance, include lots more real-time data, and to simplify maintaining and writing GUIs. Based on direct feedback from multiple GUI developers and bench performance testing. _NOTE: GUIs need to specifically update their code to be compatible with v1.1 and later._
Sergunb 0:9dcf85d9b2f3 44
Sergunb 0:9dcf85d9b2f3 45 - **New Status Reports**: To account for the additional override data, status reports have been tweaked to cram more data into it, while still being smaller than before. Documentation is included, outlining how it has been changed.
Sergunb 0:9dcf85d9b2f3 46 - **Improved Error/Alarm Feedback** : All Grbl error and alarm messages have been changed to providing a code. Each code is associated with a specific problem, so users will know exactly what is wrong without having to guess. Documentation and an easy to parse CSV is included in the repo.
Sergunb 0:9dcf85d9b2f3 47 - **Extended-ASCII realtime commands** : All overrides and future real-time commands are defined in the extended-ASCII character space. Unfortunately not easily type-able on a keyboard, but helps prevent accidental commands from a g-code file having these characters and gives lots of space for future expansion.
Sergunb 0:9dcf85d9b2f3 48 - **Message Prefixes** : Every message type from Grbl has a unique prefix to help GUIs immediately determine what the message is and parse it accordingly without having to know context. The prior interface had several instances of GUIs having to figure out the meaning of a message, which made everything more complicated than it needed to be.
Sergunb 0:9dcf85d9b2f3 49
Sergunb 0:9dcf85d9b2f3 50 - New OEM specific features, such as safety door parking, single configuration file build option, EEPROM restrictions and restoring controls, and storing product data information.
Sergunb 0:9dcf85d9b2f3 51
Sergunb 0:9dcf85d9b2f3 52 - New safety door parking motion as a compile-option. Grbl will retract, disable the spindle/coolant, and park near Z max. When resumed, it will perform these task in reverse order and continue the program. Highly configurable, even to add more than one parking motion. See config.h for details.
Sergunb 0:9dcf85d9b2f3 53
Sergunb 0:9dcf85d9b2f3 54 - New '$' Grbl settings for max and min spindle rpm. Allows for tweaking the PWM output to more closely match true spindle rpm. When max rpm is set to zero or less than min rpm, the PWM pin D11 will act like a simple enable on/off output.
Sergunb 0:9dcf85d9b2f3 55
Sergunb 0:9dcf85d9b2f3 56 - Updated G28 and G30 behavior from NIST to LinuxCNC g-code description. In short, if a intermediate motion is specified, only the axes specified will move to the stored coordinates, not all axes as before.
Sergunb 0:9dcf85d9b2f3 57
Sergunb 0:9dcf85d9b2f3 58 - Lots of minor bug fixes and refactoring to make the code more efficient and flexible.
Sergunb 0:9dcf85d9b2f3 59
Sergunb 0:9dcf85d9b2f3 60 - **NOTE:** Arduino Mega2560 support has been moved to an active, official Grbl-Mega [project](http://www.github.com/gnea/grbl-Mega/). All new developments here and there will be synced when it makes sense to.
Sergunb 0:9dcf85d9b2f3 61
Sergunb 0:9dcf85d9b2f3 62
Sergunb 0:9dcf85d9b2f3 63 ```
Sergunb 0:9dcf85d9b2f3 64 List of Supported G-Codes in Grbl v1.1:
Sergunb 0:9dcf85d9b2f3 65 - Non-Modal Commands: G4, G10L2, G10L20, G28, G30, G28.1, G30.1, G53, G92, G92.1
Sergunb 0:9dcf85d9b2f3 66 - Motion Modes: G0, G1, G2, G3, G38.2, G38.3, G38.4, G38.5, G80
Sergunb 0:9dcf85d9b2f3 67 - Feed Rate Modes: G93, G94
Sergunb 0:9dcf85d9b2f3 68 - Unit Modes: G20, G21
Sergunb 0:9dcf85d9b2f3 69 - Distance Modes: G90, G91
Sergunb 0:9dcf85d9b2f3 70 - Arc IJK Distance Modes: G91.1
Sergunb 0:9dcf85d9b2f3 71 - Plane Select Modes: G17, G18, G19
Sergunb 0:9dcf85d9b2f3 72 - Tool Length Offset Modes: G43.1, G49
Sergunb 0:9dcf85d9b2f3 73 - Cutter Compensation Modes: G40
Sergunb 0:9dcf85d9b2f3 74 - Coordinate System Modes: G54, G55, G56, G57, G58, G59
Sergunb 0:9dcf85d9b2f3 75 - Control Modes: G61
Sergunb 0:9dcf85d9b2f3 76 - Program Flow: M0, M1, M2, M30*
Sergunb 0:9dcf85d9b2f3 77 - Coolant Control: M7*, M8, M9
Sergunb 0:9dcf85d9b2f3 78 - Spindle Control: M3, M4, M5
Sergunb 0:9dcf85d9b2f3 79 - Valid Non-Command Words: F, I, J, K, L, N, P, R, S, T, X, Y, Z
Sergunb 0:9dcf85d9b2f3 80 ```
Sergunb 0:9dcf85d9b2f3 81
Sergunb 0:9dcf85d9b2f3 82 -------------
Sergunb 0:9dcf85d9b2f3 83 Grbl is an open-source project and fueled by the free-time of our intrepid administrators and altruistic users. If you'd like to donate, all proceeds will be used to help fund supporting hardware and testing equipment. Thank you!
Sergunb 0:9dcf85d9b2f3 84
Sergunb 0:9dcf85d9b2f3 85 [![Donate](https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=CUGXJHXA36BYW)