Gen3 Electronics Sample Configuration. More...

#include "arduino.h"

Defines
#define	HOST
	This is the motherboard, as opposed to the extruder.
#define	STEPS_PER_MM_X 320.000
#define	STEPS_PER_MM_Y 320.000
#define	STEPS_PER_MM_Z 200.000
#define	STEPS_PER_MM_E 320.000
	http://blog.arcol.hu/?p=157 may help with this one
#define	MAXIMUM_FEEDRATE_X 200
	used for G0 rapid moves and as a cap for all other feedrates
#define	MAXIMUM_FEEDRATE_Y 200
#define	MAXIMUM_FEEDRATE_Z 100
#define	MAXIMUM_FEEDRATE_E 200
#define	SEARCH_FEEDRATE_X 50
	used when searching endstops and as default feedrate
#define	SEARCH_FEEDRATE_Y 50
#define	SEARCH_FEEDRATE_Z 50
#define	SEARCH_FEEDRATE_E 50
#define	E_STARTSTOP_STEPS 20
	this is how many steps to suck back the filament by when we stop. set to zero to disable
#define	X_MIN 0.0
	Soft axis limits, in mm undefine if you don't want to use them.
#define	X_MAX 200.0
#define	Y_MIN 0.0
#define	Y_MAX 200.0
#define	Z_MIN 0.0
#define	Z_MAX 140.0
#define	ACCELERATION_RAMPING
	acceleration and deceleration ramping.
#define	ACCELERATION_STEEPNESS 500000
	how fast to accelerate when using ACCELERATION_RAMPING smaller values give quicker acceleration valid range = 1 to 8,000,000; 500,000 is a good starting point
#define	TX_ENABLE_PIN DIO12
	this is the official gen3 reprap motherboard pinout
#define	RX_ENABLE_PIN DIO13
#define	X_STEP_PIN DIO15
#define	X_DIR_PIN DIO18
#define	X_MIN_PIN DIO20
#define	X_MAX_PIN DIO21
#define	X_ENABLE_PIN DIO19
#define	Y_STEP_PIN DIO23
#define	Y_DIR_PIN DIO22
#define	Y_MIN_PIN AIO6
#define	Y_MAX_PIN AIO5
#define	Y_ENABLE_PIN DIO7
#define	Z_STEP_PIN AIO4
#define	Z_DIR_PIN AIO3
#define	Z_MIN_PIN AIO1
#define	Z_MAX_PIN AIO0
#define	Z_ENABLE_PIN AIO2
#define	E_STEP_PIN DIO16
#define	E_DIR_PIN DIO17
#define	SD_CARD_DETECT DIO2
#define	SD_WRITE_PROTECT DIO3
#define	TEMP_HYSTERESIS 20
	TEMP_HYSTERESIS: actual temperature must be target +/- hysteresis before target temperature can be achieved.
#define	TEMP_RESIDENCY_TIME 60
	TEMP_RESIDENCY_TIME: actual temperature must be close to target for this long before target is achieved.
#define	TEMP_INTERCOM
#define	DEFINE_TEMP_SENSOR(...)
#define	DEFINE_HEATER(...)
#define	REPRAP_HOST_COMPATIBILITY 20100806
	RepRap Host changes it's communications protocol from time to time and intentionally avoids backwards compatibility.
#define	BAUD 115200
	Baud rate for the connection to the host.
#define	MOVEBUFFER_SIZE 8
	move buffer size, in number of moves note that each move takes a fair chunk of ram (69 bytes as of this writing) so don't make the buffer too big - a bigger serial readbuffer may help more than increasing this unless your gcodes are more than 70 characters long on average.
#define	REFERENCE REFERENCE_AVCC
	analog subsystem stuff REFERENCE - which analog reference to use.
#define	STEP_INTERRUPT_INTERRUPTIBLE 1
	this option makes the step interrupt interruptible (nested).
#define	TH_COUNT 8
	temperature history count.
#define	PID_SCALE 1024L
	this is the scaling of internally stored PID values. 1024L is a good value

Detailed Description

Gen3 Electronics Sample Configuration.

Define Documentation

#define ACCELERATION_RAMPING

acceleration and deceleration ramping.

Each movement starts at (almost) no speed, linearly accelerates to target speed and decelerates just in time to smoothly stop at the target. alternative to ACCELERATION_REPRAP

#define BAUD 115200

Baud rate for the connection to the host.

Usually 115200, other common values are 19200, 38400 or 57600.

Referenced by serial_init().

#define HOST

This is the motherboard, as opposed to the extruder.

See extruder/ directory for GEN3 extruder firmware

#define MOVEBUFFER_SIZE 8

move buffer size, in number of moves note that each move takes a fair chunk of ram (69 bytes as of this writing) so don't make the buffer too big - a bigger serial readbuffer may help more than increasing this unless your gcodes are more than 70 characters long on average.

however, a larger movebuffer will probably help with lots of short consecutive moves, as each move takes a bunch of math (hence time) to set up so a longer buffer allows more of the math to be done during preceding longer moves

Referenced by enqueue(), next_move(), and queue_full().

#define REFERENCE REFERENCE_AVCC

analog subsystem stuff REFERENCE - which analog reference to use.

see analog.h for choices

Referenced by analog_init(), and ISR().

#define REPRAP_HOST_COMPATIBILITY 20100806

RepRap Host changes it's communications protocol from time to time and intentionally avoids backwards compatibility.

Set this to the date the source code of your Host was fetched from RepRap's repository, which is likely also the build date. See the discussion on the reprap-dev mailing list from 11 Oct. 2010.

Undefine it for best human readability, set it to an old date for compatibility with hosts before August 2010

#define STEP_INTERRUPT_INTERRUPTIBLE 1

this option makes the step interrupt interruptible (nested).

this should help immensely with dropped serial characters, but may also make debugging infuriating due to the complexities arising from nested interrupts

#define TEMP_HYSTERESIS 20

TEMP_HYSTERESIS: actual temperature must be target +/- hysteresis before target temperature can be achieved.

NOTE: format is 30.2 fixed point, so value of 20 actually means +/- 5 degrees

Referenced by heater_tick(), and temp_sensor_tick().

#define TEMP_RESIDENCY_TIME 60

TEMP_RESIDENCY_TIME: actual temperature must be close to target for this long before target is achieved.

temperature is "achieved" for purposes of M109 and friends when actual temperature is within [hysteresis] of target for [residency] seconds

Referenced by temp_achieved(), and temp_sensor_tick().

#define TH_COUNT 8

temperature history count.

This is how many temperature readings to keep in order to calculate derivative in PID loop higher values make PID derivative term more stable at the expense of reaction time

Referenced by heater_tick().

config.gen3.h File Reference

Defines

Detailed Description

Define Documentation