kopia lustrzana https://github.com/gnea/grbl
156 wiersze
6.8 KiB
C
156 wiersze
6.8 KiB
C
/*
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cpu_map.h - CPU and pin mapping configuration file
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Part of Grbl
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Copyright (c) 2012-2016 Sungeun K. Jeon for Gnea Research LLC
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Grbl is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Grbl is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Grbl. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* The cpu_map.h files serve as a central pin mapping selection file for different
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processor types or alternative pin layouts. This version of Grbl officially supports
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only the Arduino Mega328p. */
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#ifndef cpu_map_h
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#define cpu_map_h
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#ifdef CPU_MAP_ATMEGA328P // (Arduino Uno) Officially supported by Grbl.
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// Define serial port pins and interrupt vectors.
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#define SERIAL_RX USART_RX_vect
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#define SERIAL_UDRE USART_UDRE_vect
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// Define step pulse output pins. NOTE: All step bit pins must be on the same port.
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#define STEP_DDR DDRD
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#define STEP_PORT PORTD
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#define X_STEP_BIT 2 // Uno Digital Pin 2
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#define Y_STEP_BIT 3 // Uno Digital Pin 3
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#define Z_STEP_BIT 4 // Uno Digital Pin 4
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#define STEP_MASK ((1<<X_STEP_BIT)|(1<<Y_STEP_BIT)|(1<<Z_STEP_BIT)) // All step bits
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// Define step direction output pins. NOTE: All direction pins must be on the same port.
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#define DIRECTION_DDR DDRD
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#define DIRECTION_PORT PORTD
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#define X_DIRECTION_BIT 5 // Uno Digital Pin 5
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#define Y_DIRECTION_BIT 6 // Uno Digital Pin 6
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#define Z_DIRECTION_BIT 7 // Uno Digital Pin 7
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#define DIRECTION_MASK ((1<<X_DIRECTION_BIT)|(1<<Y_DIRECTION_BIT)|(1<<Z_DIRECTION_BIT)) // All direction bits
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// Define stepper driver enable/disable output pin.
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#define STEPPERS_DISABLE_DDR DDRB
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#define STEPPERS_DISABLE_PORT PORTB
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#define STEPPERS_DISABLE_BIT 0 // Uno Digital Pin 8
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#define STEPPERS_DISABLE_MASK (1<<STEPPERS_DISABLE_BIT)
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// Define homing/hard limit switch input pins and limit interrupt vectors.
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// NOTE: All limit bit pins must be on the same port, but not on a port with other input pins (CONTROL).
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#define LIMIT_DDR DDRB
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#define LIMIT_PIN PINB
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#define LIMIT_PORT PORTB
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#define X_LIMIT_BIT 1 // Uno Digital Pin 9
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#define Y_LIMIT_BIT 2 // Uno Digital Pin 10
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#ifdef VARIABLE_SPINDLE // Z Limit pin and spindle enabled swapped to access hardware PWM on Pin 11.
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#define Z_LIMIT_BIT 4 // Uno Digital Pin 12
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#else
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#define Z_LIMIT_BIT 3 // Uno Digital Pin 11
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#endif
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#define LIMIT_MASK ((1<<X_LIMIT_BIT)|(1<<Y_LIMIT_BIT)|(1<<Z_LIMIT_BIT)) // All limit bits
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#define LIMIT_INT PCIE0 // Pin change interrupt enable pin
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#define LIMIT_INT_vect PCINT0_vect
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#define LIMIT_PCMSK PCMSK0 // Pin change interrupt register
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// Define spindle enable and spindle direction output pins.
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#define SPINDLE_ENABLE_DDR DDRB
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#define SPINDLE_ENABLE_PORT PORTB
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// Z Limit pin and spindle PWM/enable pin swapped to access hardware PWM on Pin 11.
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#ifdef VARIABLE_SPINDLE
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#ifdef USE_SPINDLE_DIR_AS_ENABLE_PIN
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// If enabled, spindle direction pin now used as spindle enable, while PWM remains on D11.
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#define SPINDLE_ENABLE_BIT 5 // Uno Digital Pin 13 (NOTE: D13 can't be pulled-high input due to LED.)
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#else
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#define SPINDLE_ENABLE_BIT 3 // Uno Digital Pin 11
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#endif
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#else
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#define SPINDLE_ENABLE_BIT 4 // Uno Digital Pin 12
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#endif
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#ifndef USE_SPINDLE_DIR_AS_ENABLE_PIN
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#define SPINDLE_DIRECTION_DDR DDRB
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#define SPINDLE_DIRECTION_PORT PORTB
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#define SPINDLE_DIRECTION_BIT 5 // Uno Digital Pin 13 (NOTE: D13 can't be pulled-high input due to LED.)
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#endif
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// Define flood and mist coolant enable output pins.
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#define COOLANT_FLOOD_DDR DDRC
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#define COOLANT_FLOOD_PORT PORTC
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#define COOLANT_FLOOD_BIT 3 // Uno Analog Pin 3
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#define COOLANT_MIST_DDR DDRC
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#define COOLANT_MIST_PORT PORTC
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#define COOLANT_MIST_BIT 4 // Uno Analog Pin 3
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// Define user-control controls (cycle start, reset, feed hold) input pins.
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// NOTE: All CONTROLs pins must be on the same port and not on a port with other input pins (limits).
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#define CONTROL_DDR DDRC
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#define CONTROL_PIN PINC
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#define CONTROL_PORT PORTC
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#define CONTROL_RESET_BIT 0 // Uno Analog Pin 0
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#define CONTROL_FEED_HOLD_BIT 1 // Uno Analog Pin 1
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#define CONTROL_CYCLE_START_BIT 2 // Uno Analog Pin 2
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#define CONTROL_SAFETY_DOOR_BIT 1 // Uno Analog Pin 1 NOTE: Safety door is shared with feed hold. Enabled by config define.
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#define CONTROL_INT PCIE1 // Pin change interrupt enable pin
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#define CONTROL_INT_vect PCINT1_vect
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#define CONTROL_PCMSK PCMSK1 // Pin change interrupt register
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#define CONTROL_MASK ((1<<CONTROL_RESET_BIT)|(1<<CONTROL_FEED_HOLD_BIT)|(1<<CONTROL_CYCLE_START_BIT)|(1<<CONTROL_SAFETY_DOOR_BIT))
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#define CONTROL_INVERT_MASK CONTROL_MASK // May be re-defined to only invert certain control pins.
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// Define probe switch input pin.
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#define PROBE_DDR DDRC
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#define PROBE_PIN PINC
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#define PROBE_PORT PORTC
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#define PROBE_BIT 5 // Uno Analog Pin 5
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#define PROBE_MASK (1<<PROBE_BIT)
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// Variable spindle configuration below. Do not change unless you know what you are doing.
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// NOTE: Only used when variable spindle is enabled.
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#define SPINDLE_PWM_MAX_VALUE 255 // Don't change. 328p fast PWM mode fixes top value as 255.
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#define SPINDLE_PWM_OFF_VALUE 0
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#define SPINDLE_TCCRA_REGISTER TCCR2A
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#define SPINDLE_TCCRB_REGISTER TCCR2B
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#define SPINDLE_OCR_REGISTER OCR2A
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#define SPINDLE_COMB_BIT COM2A1
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// Prescaled, 8-bit Fast PWM mode.
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#define SPINDLE_TCCRA_INIT_MASK ((1<<WGM20) | (1<<WGM21)) // Configures fast PWM mode.
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// #define SPINDLE_TCCRB_INIT_MASK (1<<CS21) // 1/8 prescaler -> 7.8kHz (Used in v0.9)
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// #define SPINDLE_TCCRB_INIT_MASK ((1<<CS21) | (1<<CS20)) // 1/32 prescaler -> 1.96kHz
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#define SPINDLE_TCCRB_INIT_MASK (1<<CS22) // 1/64 prescaler -> 0.98kHz
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// NOTE: On the 328p, these must be the same as the SPINDLE_ENABLE settings.
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#define SPINDLE_PWM_DDR DDRB
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#define SPINDLE_PWM_PORT PORTB
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#define SPINDLE_PWM_BIT 3 // Uno Digital Pin 11
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#endif
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/*
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#ifdef CPU_MAP_CUSTOM_PROC
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// For a custom pin map or different processor, copy and edit one of the available cpu
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// map files and modify it to your needs. Make sure the defined name is also changed in
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// the config.h file.
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#endif
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*/
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#endif
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