https://github.com/deadsy/grbl_stm32f4

The grbl g-code interpreter ported to the STM32F4
https://github.com/deadsy/grbl_stm32f4

Last synced: 3 months ago
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The grbl g-code interpreter ported to the STM32F4

• Host: GitHub
• URL: https://github.com/deadsy/grbl_stm32f4
• Owner: deadsy
• Created: 2014-03-16T14:59:07.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2023-06-02T17:05:55.000Z (about 1 year ago)
• Last Synced: 2024-01-16T18:11:19.016Z (5 months ago)
• Language: C
• Size: 2.52 MB
• Stars: 60
• Watchers: 19
• Forks: 33
• Open Issues: 6
• Metadata Files:
  • Readme: README.md

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• AwesomeInterpreter - grbl_stm32f4

README

        
# grbl_stm32f4

## Purpose

This a port of the grbl 0.8c g-code interpreter to the STM32F4 SoC

The STM32F4 SoC has attractive features for a realtime G-Code interpreter and machine controller.

* Lot's of IO - it's possible to run more stepper motors, more limit switches, etc.

* A Floating Point Unit - good for doing the linear/circular interpolation math.

* Fast (168MHz 32-bit versus 16MHz 8-bit for the atmega328p).

## Target Platform

STM32F4Discovery Board

* http://www.st.com/web/catalog/tools/FM116/SC959/SS1532/PF252419

* http://www.digikey.com/short/504hf

## Build tools:

GCC Toolchain

* https://launchpad.net/gcc-arm-embedded

* [gcc-arm-none-eabi-4_9-2015q2] (https://launchpad.net/gcc-arm-embedded/4.9/4.9-2015-q2-update/+download/gcc-arm-none-eabi-4_9-2015q2-20150609-linux.tar.bz2)

STLink Programming Tool

* https://github.com/texane/stlink

## Target CNC Machine

This code is a straight port of grbl and is adaptable to many stepper drivers and CNC machines.

My test and development has used:

Gecko Drives G540 4-Axis Digital Step Drive

* http://www.geckodrive.com/geckodrive-step-motor-drives/g540.html

KRMx01 CNC Router 

* http://www.kronosrobotics.com/krmx01/

## Additions

* Support for XYZY axes operation has been added. ie- Two stepper motors, controlled in the same way, are used to drive the Y-axis.

* All input signals (homing switches, e-stop, etc.) are debounced in software.

## Status

* Non-volatile EEPROM storage of configuration parameters is not currently supported. The EEPROM facility is being faked with RAM based storage. The desired machine parameters should be compiled into the firmware.

* The CDC USB serial device implemented on the board is not as reliable as it needs to be. Pending bug fixes the option of a normal serial port using the USART hardware has been implemented. This can be enabled in the makefile by setting "USB_SERIAL = 0".