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config.h.dist
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/*
CONTENTS
1. Mechanical/Hardware
2. Acceleration settings
3. Pinouts
4. Temperature sensors
5. Heaters
6. Communication options
7. Miscellaneous
8. Appendix A - PWMable pins and mappings
*/
/***************************************************************************\
* *
* 1. MECHANICAL/HARDWARE *
* *
\***************************************************************************/
/*
Set your microcontroller type in Makefile! atmega168/atmega328p/atmega644p/atmega1280
If you want to port this to a new chip, start off with arduino.h and see how you go.
*/
/*
CPU clock rate
*/
#ifndef F_CPU
#define F_CPU 16000000L
#endif
/*
Are you using the official GEN3 motherboard with separate extruder controller?
*/
#define GEN3
/*
This is the motherboard, as opposed to the extruder. See extruder/ directory for GEN3 extruder firmware
*/
#define HOST
/*
Values reflecting the gearing of your machine.
All numbers are fixed point integers, so no more than 3 digits to the right of the decimal point, please :-)
*/
// calculate these values appropriate for your machine
// for threaded rods, this is (steps motor per turn) / (pitch of the thread)
// for belts, this is (steps per motor turn) / (number of gear teeth) / (belt module)
// half-stepping doubles the number, quarter stepping requires * 4, etc.
#define STEPS_PER_MM_X 320.000
#define STEPS_PER_MM_Y 320.000
#define STEPS_PER_MM_Z 320.000
// http://blog.arcol.hu/?p=157 may help with this next one
#define STEPS_PER_MM_E 320.000
/*
Values depending on the capabilities of your stepper motors and other mechanics.
All numbers are integers, no decimals allowed.
Units are mm/min
*/
// used for G0 rapid moves and as a cap for all other feedrates
#define MAXIMUM_FEEDRATE_X 200
#define MAXIMUM_FEEDRATE_Y 200
#define MAXIMUM_FEEDRATE_Z 100
#define MAXIMUM_FEEDRATE_E 200
// used when searching endstops and as default feedrate
#define SEARCH_FEEDRATE_X 50
#define SEARCH_FEEDRATE_Y 50
#define SEARCH_FEEDRATE_Z 50
#define SEARCH_FEEDRATE_E 50
// this is how many steps to suck back the filament by when we stop. set to zero to disable
#define E_STARTSTOP_STEPS 20
/***************************************************************************\
* *
* 2. ACCELERATION *
* *
* IMPORTANT: choose only one! These algorithms choose when to step, trying *
* to use more than one will have undefined and probably *
* disastrous results! *
* *
\***************************************************************************/
/*
acceleration, reprap style.
Each movement starts at the speed of the previous command and accelerates or decelerates linearly to reach target speed at the end of the movement.
*/
// #define ACCELERATION_REPRAP
/*
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 ACCELERATION_RAMPING
// 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 ACCELERATION_STEEPNESS 500000
/*
temporal step algorithm
This algorithm causes the timer to fire when any axis needs to step, instead of synchronising to the axis with the most steps ala bresenham.
This algorithm is not a type of acceleration, and I haven't worked out how to integrate acceleration with it.
However it does control step timing, so acceleration algorithms seemed appropriate
The Bresenham algorithm is great for drawing lines, but not so good for steppers - In the case where X steps 3 times to Y's two, Y experiences massive jitter as it steps in sync with X every 2 out of 3 X steps. This is a worst-case, but the problem exists for most non-45/90 degree moves. At higher speeds, the jitter /will/ cause position loss and unnecessary vibration.
This algorithm instead calculates when a step occurs on any axis, and sets the timer to that value.
// TODO: figure out how to add acceleration to this algorithm
*/
// #define ACCELERATION_TEMPORAL
/***************************************************************************\
* *
* 3. PINOUTS *
* *
\***************************************************************************/
/*
Machine Pin Definitions
- make sure to avoid duplicate usage of a pin
- comment out pins not in use, as this drops the corresponding code and makes operations faster
*/
#include "arduino.h"
#ifndef GEN3
/*
user defined pins
adjust to suit your electronics,
or adjust your electronics to suit this
*/
#define X_STEP_PIN AIO0
#define X_DIR_PIN AIO1
#define X_MIN_PIN AIO2
#define Y_STEP_PIN AIO3
#define Y_DIR_PIN AIO4
#define Y_MIN_PIN AIO5
#define Z_STEP_PIN DIO2
#define Z_DIR_PIN DIO3
#define Z_MIN_PIN DIO4
#define E_STEP_PIN DIO7
#define E_DIR_PIN DIO8
#define PS_ON_PIN DIO9
#else
/*
this is the official gen3 reprap motherboard pinout
*/
#define TX_ENABLE_PIN DIO12
#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
#endif
/***************************************************************************\
* *
* 4. TEMPERATURE SENSORS *
* *
\***************************************************************************/
/*
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
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
*/
#define TEMP_HYSTERESIS 20
#define TEMP_RESIDENCY_TIME 60
// which temperature sensors are you using? (intercom is the gen3-style separate extruder board)
// #define TEMP_MAX6675
// #define TEMP_THERMISTOR
// #define TEMP_AD595
// #define TEMP_PT100
#define TEMP_INTERCOM
// if you selected thermistor or AD595, what pin is it on? (this value only used to fill ANALOG_MASK for you)
#define TEMP_PIN_CHANNEL AIO0_PIN
// ANALOG_MASK is a bitmask of all analog channels used- if you use more than one analog input (more than one temp sensor?), bitwise-or them all together
#define ANALOG_MASK MASK(TEMP_PIN_CHANNEL)
/***************************************************************************\
* *
* Define your temperature sensors here *
* *
* If your temperature sensor has no associated heater, enter '255' as the *
* heater index. Unassociated temperature sensors are still read, but they *
* do not affect firmware operation *
* *
* for GEN3 set temp_type to TT_INTERCOM, temp_pin to 0 and heater index to *
* 255 - the extruder manages the heater for us *
* *
* Types are same as TEMP_ list above- TT_MAX6675, TT_THERMISTOR, TT_AD595, *
* TT_PT100, TT_INTERCOM. See list in temp.c. *
* *
\***************************************************************************/
#ifndef DEFINE_TEMP_SENSOR
#define DEFINE_TEMP_SENSOR(...)
#endif
// name type pin heater index
DEFINE_TEMP_SENSOR(extruder, TT_INTERCOM, 0, 255)
/***************************************************************************\
* *
* 5. HEATERS *
* *
\***************************************************************************/
// index of bed heater for M105 and M140 commands. set to 255 if no bed heater
#define BED_HEATER 1
// check if heater responds to changes in target temperature, disable and spit errors if not
// #define HEATER_SANITY_CHECK
/***************************************************************************\
* *
* Define your heaters here *
* *
* If your heater isn't on a PWM-able pin, set heater_pwm to zero and we'll *
* use bang-bang output. Note that PID will still be used *
* *
* See Appendix 8 at the end of this file for PWMable pin mappings *
* *
* If a heater isn't attached to a temperature sensor above, it can still be *
* controlled by host but otherwise is ignored by firmware *
* *
\***************************************************************************/
#ifndef DEFINE_HEATER
#define DEFINE_HEATER(...)
#endif
// name port pin pwm
// DEFINE_HEATER(extruder, PORTD, PIND6, OCR0A)
// DEFINE_HEATER(bed, PORTD, PIND5, OCR0B)
/***************************************************************************\
* *
* 6. COMMUNICATION OPTIONS *
* *
\***************************************************************************/
/*
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 REPRAP_HOST_COMPATIBILITY 19750101
#define REPRAP_HOST_COMPATIBILITY 20100806
// #define REPRAP_HOST_COMPATIBILITY <date of next RepRap Host compatibility break>
/*
Xon/Xoff flow control.
Redundant when using RepRap Host for sending GCode, but mandatory when sending GCode files with a plain terminal emulator, like GtkTerm (Linux), CoolTerm (Mac) or HyperTerminal (Windows).
Can also be set in Makefile
*/
// #define XONXOFF
/***************************************************************************\
* *
* 7. MISCELLANEOUS OPTIONS *
* *
\***************************************************************************/
/*
DEBUG
enables /heaps/ of extra output, and some extra M-codes.
WARNING: this WILL break most host-side talkers that expect particular responses from firmware such as reprap host and replicatorG
use with serial terminal or other suitable talker only.
*/
// #define DEBUG
/*
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
*/
#define MOVEBUFFER_SIZE 8
/*
DC extruder
If you have a DC motor extruder, configure it as a "heater" above and define this value as the index.
*/
// #define DC_EXTRUDER 1
// #define DC_EXTRUDER_PWM 180
/*
FiveD on Arduino implements a watchdog, which has to be reset every 250ms or it will reboot the controller. As rebooting (and letting the GCode sending application trying to continue the build with a then different Home point) is probably even worse than just hanging, and there is no better restore code in place, this is disabled for now.
*/
// #define USE_WATCHDOG
/*
analog subsystem stuff
REFERENCE - which analog reference to use. see analog.h for choices
*/
#define REFERENCE REFERENCE_AVCC
/*
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 STEP_INTERRUPT_INTERRUPTIBLE 1
/*
how often we overflow and update our clock; with F_CPU=16MHz, max is < 4.096ms (TICK_TIME = 65535)
*/
#define TICK_TIME 2 MS
#define TICK_TIME_MS (TICK_TIME / (F_CPU / 1000))
/*
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
*/
#define TH_COUNT 8
// this is the scaling of internally stored PID values. 1024L is a good value
#define PID_SCALE 1024L
/***************************************************************************\
* *
* 8. APPENDIX A - PWMABLE PINS AND MAPPINGS *
* *
* *
* list of PWM-able pins and corresponding timers *
* timer1 is used for step timing so don't use OC1A/OC1B *
* they are omitted from this listing for that reason *
* *
* For the atmega168/328, timer/pin mappings are as follows *
* *
* OCR0A - PD6 - DIO6 *
* OCR0B - PD5 - DIO5 *
* OCR2A - PB3 - DIO11 *
* OCR2B - PD3 - DIO3 *
* *
* For the atmega644, timer/pin mappings are as follows *
* *
* OCR0A - PB3 - DIO3 *
* OCR0B - PB4 - DIO4 *
* OCR2A - PD7 - DIO15 *
* OCR2B - PD6 - DIO14 *
* *
* For the atmega1280, timer/pin mappings are as follows *
* *
* OCR0A - PB7 - DIO13 *
* OCR0B - PG5 - DIO4 *
* OCR2A - PB4 - DIO10 *
* OCR2B - PH6 - DIO9 *
* OCR3AL - PE3 - DIO5 *
* OCR3BL - PE4 - DIO2 *
* OCR3CL - PE5 - DIO3 *
* OCR4AL - PH3 - DIO6 *
* OCR4BL - PH4 - DIO7 *
* OCR4CL - PH5 - DIO8 *
* OCR5AL - PL3 - DIO46 *
* OCR5BL - PL4 - DIO45 *
* OCR5CL - PL5 - DIO44 *
* *
\***************************************************************************/