grblhal / lpc176x

grblHAL driver for LPC1968 and LPC1769

LPC176x grblHAL driver

A GrblHAL driver for NXP LPC1768 and LPC1769 processors.

Loosely based on the official grbl-LPC port.

See the Wiki-page for compiling grblHAL for instructions for how to import the project, configure the driver and compile.

Available driver options can be found here.

Update 2020-12-11:

• Added initial board map file for Bigtreetech SKR V1.3 Turbo board.

Update 2020-11-21:

• Added initial board map file for BTT SKR V1.4 Turbo board.
• Added polling of limit switches, enabling hard limits is now possible.

A build option for creating a Firmware.bin file that can be used for programming via the Smoothieboard DFU-bootloader has been added to build configurations.
Select the BL_0x4000 configuration from the build tool dropdown to build, and programming can then be done via SD card transfer:

Firmware.bin is found in the BL_0x4000 project folder after a successful build.

Update 2020-01-01:

• Added board map file for Ramps 1.6 on Re-ARM board hacked for programming via Segger J-Link. Improved pin assignment handling and fixed some bugs. USB comms and SD card seems to be working ok for this board, however only limited testing done.

Update 2019-08-08:

• Changed IDE to MCUXpresso v11 and linked against LPCOpen development platform libraries. I2C EEPROM on OM13085 LPCXpresso board and SD card supported.

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Board maps:

	N_AXIS	Ganged axes1	EEPROM2	SD card	Modbus	I2C Keypad	Encoders	Digital I/O	Analog I/O
Generic	max 5	no	external	external	no	no	-	-	-
BOARD_RAMPS_16	max 5	no	external	external	no	no	-	-	-
BOARD_BTT_SKR_13	max 5	no	external	onboard	no	no	-	-	-
BOARD_BTT_SKR_14_TURBO	max 5	no	external	onboard	no	no	-	-	-
BOARD_MKS_SBASE_13	max 5	no	external	onboard	no	no	-	-	-
SMOOTHIEBOARD	max 5	no	external	onboard	no	no	-	-	-

¹ Each enabled reduces N_AXIS with one. Currently the board map file must be edited to enable ganged/auto squared axes.
² I²C EEPROM (or FRAM) is optional and must be added externally. FRAM is recommended when the Odometer plugin is added to the build.

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2021-04-28