ManuelW/grbl-LPC-CoreXY
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Todd Fleming 2017-01-15 16:19:06 -05:00
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README.md
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![GitHub Logo](/doc/media/Grbl Logo 250px.png)
***
_Click the `Release` tab to download pre-compiled `.hex` files or just [click here](https://github.com/gnea/grbl/releases)_
This is GRBL 1.1 ported to the LPC1769. It can run on Smoothieboard.
Usage notes:
* This uses a different usb-serial driver than Smoothieware. Windows 10 should recognize it automatically.
If it doesn't, try installing VCOM_lib/usbser.inf.
* This doesn't pass the sdcard to the host. Once installed you need to use a micro sdcard adaptor to replace or change it.
* Only tested with lasers with PWM. Non-PWM spindle control not ported.
* These are fixed PWM config values. To change these you'll have to change ```SPINDLE_PWM_*``` in config.h and rebuild.
* Pin 2.4
* 40 kHz
* PWM off value: 0%
* Mimimum PWM value: 0%
* Maximum PWM value: 100%
* These are defaults for easy-to-change config values.
* Laser mode: ON ($32)
* Minimum S value: 0.0 ($31)
* Maximum S value: 1.0 ($30)
* Homing not tested
* Hard limits not yet ported
* Control inputs not yet ported (e.g. Cycle Start and Safety Door switches)
Build notes:
* Include ```make``` and the ```arm-none-eabi-*``` tools in your path.
* Make produces 2 files:
* ```build/firmware.bin```: this is compatible with the sdcard bootloader.
* ```build/grbl.hex```: this is not compatible with the sdcard bootloader. It loads using Flash Magic
and is primarilly for developers who don't want to keep swapping sdcards. If you flash this,
then you'll have to reflash the bootloader if you want to go back.
***
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).