Prusa MINI Firmware overview
pins_MELZI_CREALITY.h
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1 /**
2  * Marlin 3D Printer Firmware
3  * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
4  *
5  * Based on Sprinter and grbl.
6  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
7  *
8  * This program is free software: you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation, either version 3 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program. If not, see <http://www.gnu.org/licenses/>.
20  *
21  */
22 #pragma once
23 
24 /**
25  * Melzi (Creality) pin assignments
26  *
27  * The Creality board needs a bootloader installed before Marlin can be uploaded.
28  * If you don't have a chip programmer you can use a spare Arduino plus a few
29  * electronic components to write the bootloader.
30  *
31  * See http://www.instructables.com/id/Burn-Arduino-Bootloader-with-Arduino-MEGA/
32  */
33 
34 #define BOARD_INFO_NAME "Melzi (Creality)"
35 
36 #include "pins_MELZI.h"
37 
38 // For the stock CR-10 use the REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER
39 // option for the display in Configuration.h
40 
41 #undef LCD_SDSS
42 #undef LED_PIN
43 #undef LCD_PINS_RS
44 #undef LCD_PINS_ENABLE
45 #undef LCD_PINS_D4
46 #undef LCD_PINS_D5
47 #undef LCD_PINS_D6
48 #undef LCD_PINS_D7
49 #undef FIL_RUNOUT_PIN // Uses Beeper/LED Pin Pulled to GND
50 
51 #define LCD_SDSS 31 // Smart Controller SD card reader (rather than the Melzi)
52 #define LCD_PINS_RS 28 // ST9720 CS
53 #define LCD_PINS_ENABLE 17 // ST9720 DAT
54 #define LCD_PINS_D4 30 // ST9720 CLK
55 
56 #if ENABLED(BLTOUCH)
57  #define SERVO0_PIN 27
58  #undef BEEPER_PIN
59 #endif
60 
61 // Alter timing for graphical display
62 #ifndef ST7920_DELAY_1
63  #define ST7920_DELAY_1 DELAY_NS(125)
64 #endif
65 #ifndef ST7920_DELAY_2
66  #define ST7920_DELAY_2 DELAY_NS(125)
67 #endif
68 #ifndef ST7920_DELAY_3
69  #define ST7920_DELAY_3 DELAY_NS(125)
70 #endif
71 
72 #if ENABLED(MINIPANEL)
73  #undef DOGLCD_CS
74  #define DOGLCD_CS LCD_PINS_RS
75 #endif
76 
77 /**
78  PIN: 0 Port: B0 E0_DIR_PIN protected
79  PIN: 1 Port: B1 E0_STEP_PIN protected
80  PIN: 2 Port: B2 Z_DIR_PIN protected
81  PIN: 3 Port: B3 Z_STEP_PIN protected
82  PIN: 4 Port: B4 AVR_SS_PIN protected
83  . FAN_PIN protected
84  . SS_PIN protected
85  PIN: 5 Port: B5 AVR_MOSI_PIN Output = 1
86  . MOSI_PIN Output = 1
87  PIN: 6 Port: B6 AVR_MISO_PIN Input = 0 TIMER3A PWM: 0 WGM: 1 COM3A: 0 CS: 3 TCCR3A: 1 TCCR3B: 3 TIMSK3: 0
88  . MISO_PIN Input = 0
89  PIN: 7 Port: B7 AVR_SCK_PIN Output = 0 TIMER3B PWM: 0 WGM: 1 COM3B: 0 CS: 3 TCCR3A: 1 TCCR3B: 3 TIMSK3: 0
90  . SCK_PIN Output = 0
91  PIN: 8 Port: D0 RXD Input = 1
92  PIN: 9 Port: D1 TXD Input = 0
93  PIN: 10 Port: D2 BTN_EN2 Input = 1
94  PIN: 11 Port: D3 BTN_EN1 Input = 1
95  PIN: 12 Port: D4 HEATER_BED_PIN protected
96  PIN: 13 Port: D5 HEATER_0_PIN protected
97  PIN: 14 Port: D6 E0_ENABLE_PIN protected
98  . X_ENABLE_PIN protected
99  . Y_ENABLE_PIN protected
100  PIN: 15 Port: D7 X_STEP_PIN protected
101  PIN: 16 Port: C0 BTN_ENC Input = 1
102  . SCL Input = 1
103  PIN: 17 Port: C1 LCD_PINS_ENABLE Output = 0
104  . SDA Output = 0
105  PIN: 18 Port: C2 X_MIN_PIN protected
106  . X_STOP_PIN protected
107  PIN: 19 Port: C3 Y_MIN_PIN protected
108  . Y_STOP_PIN protected
109  PIN: 20 Port: C4 Z_MIN_PIN protected
110  . Z_STOP_PIN protected
111  PIN: 21 Port: C5 X_DIR_PIN protected
112  PIN: 22 Port: C6 Y_STEP_PIN protected
113  PIN: 23 Port: C7 Y_DIR_PIN protected
114  PIN: 24 Port: A7 TEMP_0_PIN protected
115  PIN: 25 Port: A6 TEMP_BED_PIN protected
116  PIN: 26 Port: A5 Z_ENABLE_PIN protected
117  PIN: 27 Port: A4 BEEPER_PIN Output = 0
118  PIN: 28 Port: A3 LCD_PINS_RS Output = 0
119  PIN: 29 Port: A2 <unused/unknown> Input = 0
120  PIN: 30 Port: A1 LCD_PINS_D4 Output = 1
121  PIN: 31 Port: A0 SDSS Output = 1
122 */
pins_MELZI.h