Re-ARM
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Release status: Working
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| Description | LPC1768 for use with RAMPS 1.4
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Contents
Summary
UNDER CONSTRUCTION
Re-ARM is a R3 form factor NXP LPC1768 based controller. It is meant to replace an Arduino mega260.
Software
Smoothieware - see xxxx for a useable configuration
Marlin - under construction - will be supported in Marlin 2.0
Compatible Shields
RAMPS1.4 is the only known compatible shield.
RAMPS-FD has an interference problem.
Pinout when used with RAMPS1.4
The LPC1768 has fewer I/O pins than the mega2560 which results in some logical pins no longer available and some logical pins being available on two different pins.
The logical pin numbers in the gallery are Marlin.
LCDs
Most LCDs are expected to use the J3 & J5 connectors on the Re-ARM board. J3 is pinned out for the 12 pin Viki2 LCD flat ribbon cable.
The standard SMART LCD adapter can be used to interface RepRap Discount Full Graphic type of controllers. The pinout is different than when used with a mega2560.
- If your LCD requires +5V then you'll need a special EXP1 cable.
- If your LCD uses any of the following signals then you must use J3 & J5:
- - LCD_PINS_D5, LCD_PINS_D6 & LCD_PINS_D7
- - DOGLCD_A0 & DOGLCD_CS
NOTE - The mega2560 pinout used two SPI channels but the Re-ARM only routes one to this adapter. The result is garbage/lines appearing on the RepRap Discount Full Graphic display when the SD card is accessed. Sometimes the garbage/lines remains on the "Print from SD card" submenu screen after the SD card accesses are finished.
