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