picobob_map.h

/*
  picobob_map.h - driver code for RP2040 ARM processors

  Part of grblHAL

  Copyright (c) 2021-2022 Terje Io

  Grbl is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  Grbl is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
*/

#if TRINAMIC_ENABLE
#error Trinamic plugin not supported!
#endif

#if N_ABC_MOTORS > 2
#error "Axis configuration is not supported!"
#endif

#define BOARD_NAME "PicoBOB"
#define BOARD_URL "https://github.com/Expatria-Technologies/PicoBOB"

// Define step pulse output pins.
#define STEP_PORT             GPIO_PIO  // N_AXIS pin PIO SM
#define STEP_PINS_BASE        17        // N_AXIS number of consecutive pins are used by PIO

// Define step direction output pins.
#define DIRECTION_PORT        GPIO_OUTPUT
#define DIRECTION_OUTMODE     GPIO_MAP
#define X_DIRECTION_PIN       9
#define Y_DIRECTION_PIN       10
#define Z_DIRECTION_PIN       11

// Define ganged axis or A axis step pulse and step direction output pins.
#if N_ABC_MOTORS > 0
#define M3_AVAILABLE
#define M3_STEP_PIN           3 //not the Pico pin.
#define M3_DIRECTION_PIN      12
#define M3_LIMIT_PIN          5
#endif

//M4 pins  Note that M3 and M4 must use the same limit pin.
#if N_ABC_MOTORS > 1
#define M4_AVAILABLE
#define M4_STEP_PIN           4 //not the Pico pin.
#define M4_DIRECTION_PIN      13
#define M4_LIMIT_PIN          5
#endif

//Define stepper driver enable/disable output pin.  This is not used on PicoBOB.

// Define homing/hard limit switch input pins.  Currently configured so that X and Z limit pins are shared.
#define LIMIT_PORT            GPIO_INPUT
#define X_LIMIT_PIN           2
#define Y_LIMIT_PIN           1
#define Z_LIMIT_PIN           2

// Define spindle enable and spindle direction output pins.  No direction signal on the Mach3 BOB.
//Spindle relay control is shared with B direction port, only one can be enabled at a time!
#define SPINDLE_PORT          GPIO_OUTPUT
#ifndef M4_DIRECTION_PIN
#define SPINDLE_ENABLE_PIN    13
#endif

// Define spindle PWM output pin.
#define SPINDLE_PWM_PORT      GPIO_OUTPUT
#define SPINDLE_PWM_PIN       14

// Define user-control controls (cycle start, reset, feed hold) input pins.  Only Estop is supported on the Mach3 BOB.
#define RESET_PIN             3

//Stepper enable is replaced with coolant control
#define COOLANT_PORT    GPIO_OUTPUT
#define COOLANT_FLOOD_PIN     16

// Define probe switch input pin.
#define PROBE_PIN             4
#define PROBE_PORT            GPIO_INPUT