b3a53a4683
- Tons of new stuff in this release, which is fairly stable and well tested. However, much more is coming soon! - Real-time parking motion with safety door. When this compile option is enabled, an opened safety door will cause Grbl to automatically feed hold, retract, de-energize the spindle/coolant, and parks near Z max. After the door is closed and resume is commanded, this reverses and the program continues as if nothing happened. This is also highly configurable. See config.h for details. - New spindle max and min rpm ‘$’ settings! This has been requested often. Grbl will output 5V when commanded to turn on the spindle at its max rpm, and 0.02V with min rpm. The voltage and the rpm range are linear to each other. This should help users tweak their settings to get close to true rpm’s. - If the new max rpm ‘$’ setting is set = 0 or less than min rpm, the spindle speed PWM pin will act like a regular on/off spindle enable pin. On pin D11. - BEWARE: Your old EEPROM settings will be wiped! The new spindle rpm settings require a new settings version, so Grbl will automatically wipe and restore the EEPROM with the new defaults. - Control pin can now be inverted individually with a CONTROL_INVERT_MASK in the cpu_map header file. Not typical for users to need this, but handy to have. - Fixed bug when Grbl receive too many characters in a line and overflows. Previously it would respond with an error per overflow character and another acknowledge upon an EOL character. This broke the streaming protocol. Now fixed to only respond with an error after an EOL character. - Fixed a bug with the safety door during an ALARM mode. You now can’t home or unlock the axes until the safety door has been closed. This is for safety reasons (obviously.) - Tweaked some the Mega2560 cpu_map settings . Increased segment buffer size and fixed the spindle PWM settings to output at a higher PWM frequency. - Generalized the delay function used by G4 delay for use by parking motion. Allows non-blocking status reports and real-time control during re-energizing of the spindle and coolant. - Added spindle rpm max and min defaults to default.h files. - Added a new print float for rpm values.
147 lines
6.3 KiB
C
147 lines
6.3 KiB
C
/*
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cpu_map_atmega328p.h - CPU and pin mapping configuration file
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Part of Grbl
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Copyright (c) 2012-2015 Sungeun K. Jeon
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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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/* Grbl officially supports the Arduino Uno, but the other supplied pin mappings are
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supplied by users, so your results may vary. This cpu_map file serves as a central
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pin mapping settings file for AVR 328p used on the Arduino Uno. */
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#ifdef GRBL_PLATFORM
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#error "cpu_map already defined: GRBL_PLATFORM=" GRBL_PLATFORM
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#endif
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#define GRBL_PLATFORM "Atmega328p"
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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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// NOTE: Uno analog pins 4 and 5 are reserved for an i2c interface, and may be installed at
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// a later date if flash and memory space allows.
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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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#ifdef ENABLE_M7 // Mist coolant disabled by default. See config.h to enable/disable.
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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 4
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#endif
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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 RESET_BIT 0 // Uno Analog Pin 0
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#define FEED_HOLD_BIT 1 // Uno Analog Pin 1
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#define CYCLE_START_BIT 2 // Uno Analog Pin 2
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#define 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<<RESET_BIT)|(1<<FEED_HOLD_BIT)|(1<<CYCLE_START_BIT)|(1<<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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// Start of PWM & Stepper Enabled Spindle
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#ifdef VARIABLE_SPINDLE
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// Advanced Configuration Below You should not need to touch these variables
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#define PWM_MAX_VALUE 255.0 // Don't change. 328p fast PWM mode fixes top value as 255.
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#define TCCRA_REGISTER TCCR2A
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#define TCCRB_REGISTER TCCR2B
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#define OCR_REGISTER OCR2A
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#define COMB_BIT COM2A1
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// 1/8 Prescaler, 8-bit Fast PWM mode. Translates to about 7.8kHz PWM frequency.
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#define TCCRA_INIT_MASK ((1<<WGM20) | (1<<WGM21))
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#define TCCRB_INIT_MASK (1<<CS21)
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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 // End of VARIABLE_SPINDLE
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