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/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program 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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*
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* This program 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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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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/**
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* Melzi (Creality) pin assignments
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*
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* The Creality board needs a bootloader installed before Marlin can be uploaded.
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* If you don't have a chip programmer you can use a spare Arduino plus a few
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* electronic components to write the bootloader.
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*
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* See https://www.instructables.com/id/Burn-Arduino-Bootloader-with-Arduino-MEGA/
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*
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* Schematic: https://bit.ly/2XOnsWb
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*/
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#define BOARD_INFO_NAME "Melzi (Creality)"
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// Alter timing for graphical display
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#if HAS_MARLINUI_U8GLIB
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#ifndef BOARD_ST7920_DELAY_1
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#define BOARD_ST7920_DELAY_1 DELAY_NS(125)
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#endif
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#ifndef BOARD_ST7920_DELAY_2
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#define BOARD_ST7920_DELAY_2 DELAY_NS(125)
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#endif
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#ifndef BOARD_ST7920_DELAY_3
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#define BOARD_ST7920_DELAY_3 DELAY_NS(125)
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#endif
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#endif
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#include "pins_MELZI.h"
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//
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// For the stock CR-10 enable CR10_STOCKDISPLAY in Configuration.h
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//
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#undef LCD_SDSS
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#undef LED_PIN
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#undef LCD_PINS_RS
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#undef LCD_PINS_ENABLE
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#undef LCD_PINS_D4
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#undef LCD_PINS_D5
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#undef LCD_PINS_D6
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#undef LCD_PINS_D7
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#define LCD_SDSS 31 // Smart Controller SD card reader (rather than the Melzi)
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#define LCD_PINS_RS 28 // ST9720 CS
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#define LCD_PINS_ENABLE 17 // ST9720 DAT
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#define LCD_PINS_D4 30 // ST9720 CLK
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#if ENABLED(BLTOUCH)
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#define SERVO0_PIN 27
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#undef BEEPER_PIN
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#elif ENABLED(FILAMENT_RUNOUT_SENSOR)
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#ifndef FIL_RUNOUT_PIN
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#define FIL_RUNOUT_PIN 27
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#endif
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#if FIL_RUNOUT_PIN == BEEPER_PIN
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#undef BEEPER_PIN
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#endif
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#endif
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#if ENABLED(MINIPANEL)
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#undef DOGLCD_CS
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#define DOGLCD_CS LCD_PINS_RS
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#endif
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/**
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PIN: 0 Port: B0 E0_DIR_PIN protected
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PIN: 1 Port: B1 E0_STEP_PIN protected
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PIN: 2 Port: B2 Z_DIR_PIN protected
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PIN: 3 Port: B3 Z_STEP_PIN protected
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PIN: 4 Port: B4 AVR_SS_PIN protected
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. FAN_PIN protected
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. SS_PIN protected
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PIN: 5 Port: B5 AVR_MOSI_PIN Output = 1
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. MOSI_PIN Output = 1
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PIN: 6 Port: B6 AVR_MISO_PIN Input = 0 TIMER3A PWM: 0 WGM: 1 COM3A: 0 CS: 3 TCCR3A: 1 TCCR3B: 3 TIMSK3: 0
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. MISO_PIN Input = 0
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PIN: 7 Port: B7 AVR_SCK_PIN Output = 0 TIMER3B PWM: 0 WGM: 1 COM3B: 0 CS: 3 TCCR3A: 1 TCCR3B: 3 TIMSK3: 0
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. SCK_PIN Output = 0
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PIN: 8 Port: D0 RXD Input = 1
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PIN: 9 Port: D1 TXD Input = 0
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PIN: 10 Port: D2 BTN_EN2 Input = 1
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PIN: 11 Port: D3 BTN_EN1 Input = 1
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PIN: 12 Port: D4 HEATER_BED_PIN protected
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PIN: 13 Port: D5 HEATER_0_PIN protected
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PIN: 14 Port: D6 E0_ENABLE_PIN protected
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. X_ENABLE_PIN protected
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. Y_ENABLE_PIN protected
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PIN: 15 Port: D7 X_STEP_PIN protected
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PIN: 16 Port: C0 BTN_ENC Input = 1
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. SCL Input = 1
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PIN: 17 Port: C1 LCD_PINS_ENABLE Output = 0
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. SDA Output = 0
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PIN: 18 Port: C2 X_MIN_PIN protected
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. X_STOP_PIN protected
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PIN: 19 Port: C3 Y_MIN_PIN protected
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. Y_STOP_PIN protected
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PIN: 20 Port: C4 Z_MIN_PIN protected
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. Z_STOP_PIN protected
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PIN: 21 Port: C5 X_DIR_PIN protected
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PIN: 22 Port: C6 Y_STEP_PIN protected
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PIN: 23 Port: C7 Y_DIR_PIN protected
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PIN: 24 Port: A7 TEMP_0_PIN protected
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PIN: 25 Port: A6 TEMP_BED_PIN protected
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PIN: 26 Port: A5 Z_ENABLE_PIN protected
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PIN: 27 Port: A4 BEEPER_PIN Output = 0
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PIN: 28 Port: A3 LCD_PINS_RS Output = 0
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PIN: 29 Port: A2 <unused/unknown> Input = 0
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PIN: 30 Port: A1 LCD_PINS_D4 Output = 1
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PIN: 31 Port: A0 SDSS Output = 1
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*/
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/**
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* EXP1 Connector EXP1 as CR10 STOCKDISPLAY
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* _____ _____
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* PA4 | 6 5 | PC0 BEEPER_PIN | 6 5 | BTN_ENC
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* PD3 | 7 4 | RESET BTN_EN1 | 7 4 | RESET
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* PD2 8 3 | PA1 BTN_EN2 8 3 | LCD_PINS_D4 (ST9720 CLK)
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* PA3 | 9 2 | PC1 (ST9720 CS) LCD_PINS_RS | 9 2 | LCD_PINS_ENABLE (ST9720 DAT)
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* GND |10 1 | 5V GND |10 1 | 5V
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* ----- -----
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*/
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