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diff --git a/Marlin/src/HAL/AVR/fastio/fastio_1281.h b/Marlin/src/HAL/AVR/fastio/fastio_1281.h
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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
+
+/**
+ * Pin mapping for the 1281 and 2561
+ *
+ * Logical Pin: 38 39 40 41 42 43 44 45 16 10 11 12 06 07 08 09 30 31 32 33 34 35 36 37 17 18 19 20 21 22 23 24 00 01 13 05 02 03 14 15 46 47 48 49 50 51 52 53 25 26 27 28 29 04
+ * Port: A0 A1 A2 A3 A4 A5 A6 A7 B0 B1 B2 B3 B4 B5 B6 B7 C0 C1 C2 C3 C4 C5 C6 C7 D0 D1 D2 D3 D4 D5 D6 D7 E0 E1 E2 E3 E4 E5 E6 E7 F0 F1 F2 F3 F4 F5 F6 F7 G0 G1 G2 G3 G4 G5
+ */
+
+#include "../fastio.h"
+
+// change for your board
+#define DEBUG_LED DIO46
+
+// UART
+#define RXD DIO0
+#define TXD DIO1
+
+// SPI
+#define SCK DIO10
+#define MISO DIO12
+#define MOSI DIO11
+#define SS DIO16
+
+// TWI (I2C)
+#define SCL DIO17
+#define SDA DIO18
+
+// Timers and PWM
+#define OC0A DIO9
+#define OC0B DIO4
+#define OC1A DIO7
+#define OC1B DIO8
+#define OC2A DIO6
+#define OC3A DIO5
+#define OC3B DIO2
+#define OC3C DIO3
+
+// Digital I/O
+
+#define DIO0_PIN PINE0
+#define DIO0_RPORT PINE
+#define DIO0_WPORT PORTE
+#define DIO0_DDR DDRE
+#define DIO0_PWM nullptr
+
+#define DIO1_PIN PINE1
+#define DIO1_RPORT PINE
+#define DIO1_WPORT PORTE
+#define DIO1_DDR DDRE
+#define DIO1_PWM nullptr
+
+#define DIO2_PIN PINE4
+#define DIO2_RPORT PINE
+#define DIO2_WPORT PORTE
+#define DIO2_DDR DDRE
+#define DIO2_PWM &OCR3BL
+
+#define DIO3_PIN PINE5
+#define DIO3_RPORT PINE
+#define DIO3_WPORT PORTE
+#define DIO3_DDR DDRE
+#define DIO3_PWM &OCR3CL
+
+#define DIO4_PIN PING5
+#define DIO4_RPORT PING
+#define DIO4_WPORT PORTG
+#define DIO4_DDR DDRG
+#define DIO4_PWM &OCR0B
+
+#define DIO5_PIN PINE3
+#define DIO5_RPORT PINE
+#define DIO5_WPORT PORTE
+#define DIO5_DDR DDRE
+#define DIO5_PWM &OCR3AL
+
+#define DIO6_PIN PINB4
+#define DIO6_RPORT PINB
+#define DIO6_WPORT PORTB
+#define DIO6_DDR DDRB
+#define DIO6_PWM &OCR2AL
+
+#define DIO7_PIN PINB5
+#define DIO7_RPORT PINB
+#define DIO7_WPORT PORTB
+#define DIO7_DDR DDRB
+#define DIO7_PWM &OCR1AL
+
+#define DIO8_PIN PINB6
+#define DIO8_RPORT PINB
+#define DIO8_WPORT PORTB
+#define DIO8_DDR DDRB
+#define DIO8_PWM &OCR1BL
+
+#define DIO9_PIN PINB7
+#define DIO9_RPORT PINB
+#define DIO9_WPORT PORTB
+#define DIO9_DDR DDRB
+#define DIO9_PWM &OCR0AL
+
+#define DIO10_PIN PINB1
+#define DIO10_RPORT PINB
+#define DIO10_WPORT PORTB
+#define DIO10_DDR DDRB
+#define DIO10_PWM nullptr
+
+#define DIO11_PIN PINB2
+#define DIO11_RPORT PINB
+#define DIO11_WPORT PORTB
+#define DIO11_DDR DDRB
+#define DIO11_PWM nullptr
+
+#define DIO12_PIN PINB3
+#define DIO12_RPORT PINB
+#define DIO12_WPORT PORTB
+#define DIO12_DDR DDRB
+#define DIO12_PWM nullptr
+
+#define DIO13_PIN PINE2
+#define DIO13_RPORT PINE
+#define DIO13_WPORT PORTE
+#define DIO13_DDR DDRE
+#define DIO13_PWM nullptr
+
+#define DIO14_PIN PINE6
+#define DIO14_RPORT PINE
+#define DIO14_WPORT PORTE
+#define DIO14_DDR DDRE
+#define DIO14_PWM nullptr
+
+#define DIO15_PIN PINE7
+#define DIO15_RPORT PINE
+#define DIO15_WPORT PORTE
+#define DIO15_DDR DDRE
+#define DIO15_PWM nullptr
+
+#define DIO16_PIN PINB0
+#define DIO16_RPORT PINB
+#define DIO16_WPORT PORTB
+#define DIO16_DDR DDRB
+#define DIO16_PWM nullptr
+
+#define DIO17_PIN PIND0
+#define DIO17_RPORT PIND
+#define DIO17_WPORT PORTD
+#define DIO17_DDR DDRD
+#define DIO17_PWM nullptr
+
+#define DIO18_PIN PIND1
+#define DIO18_RPORT PIND
+#define DIO18_WPORT PORTD
+#define DIO18_DDR DDRD
+#define DIO18_PWM nullptr
+
+#define DIO19_PIN PIND2
+#define DIO19_RPORT PIND
+#define DIO19_WPORT PORTD
+#define DIO19_DDR DDRD
+#define DIO19_PWM nullptr
+
+#define DIO20_PIN PIND3
+#define DIO20_RPORT PIND
+#define DIO20_WPORT PORTD
+#define DIO20_DDR DDRD
+#define DIO20_PWM nullptr
+
+#define DIO21_PIN PIND4
+#define DIO21_RPORT PIND
+#define DIO21_WPORT PORTD
+#define DIO21_DDR DDRD
+#define DIO21_PWM nullptr
+
+#define DIO22_PIN PIND5
+#define DIO22_RPORT PIND
+#define DIO22_WPORT PORTD
+#define DIO22_DDR DDRD
+#define DIO22_PWM nullptr
+
+#define DIO23_PIN PIND6
+#define DIO23_RPORT PIND
+#define DIO23_WPORT PORTD
+#define DIO23_DDR DDRD
+#define DIO23_PWM nullptr
+
+#define DIO24_PIN PIND7
+#define DIO24_RPORT PIND
+#define DIO24_WPORT PORTD
+#define DIO24_DDR DDRD
+#define DIO24_PWM nullptr
+
+#define DIO25_PIN PING0
+#define DIO25_RPORT PING
+#define DIO25_WPORT PORTG
+#define DIO25_DDR DDRG
+#define DIO25_PWM nullptr
+
+#define DIO26_PIN PING1
+#define DIO26_RPORT PING
+#define DIO26_WPORT PORTG
+#define DIO26_DDR DDRG
+#define DIO26_PWM nullptr
+
+#define DIO27_PIN PING2
+#define DIO27_RPORT PING
+#define DIO27_WPORT PORTG
+#define DIO27_DDR DDRG
+#define DIO27_PWM nullptr
+
+#define DIO28_PIN PING3
+#define DIO28_RPORT PING
+#define DIO28_WPORT PORTG
+#define DIO28_DDR DDRG
+#define DIO28_PWM nullptr
+
+#define DIO29_PIN PING4
+#define DIO29_RPORT PING
+#define DIO29_WPORT PORTG
+#define DIO29_DDR DDRG
+#define DIO29_PWM nullptr
+
+#define DIO30_PIN PINC0
+#define DIO30_RPORT PINC
+#define DIO30_WPORT PORTC
+#define DIO30_DDR DDRC
+#define DIO30_PWM nullptr
+
+#define DIO31_PIN PINC1
+#define DIO31_RPORT PINC
+#define DIO31_WPORT PORTC
+#define DIO31_DDR DDRC
+#define DIO31_PWM nullptr
+
+#define DIO32_PIN PINC2
+#define DIO32_RPORT PINC
+#define DIO32_WPORT PORTC
+#define DIO32_DDR DDRC
+#define DIO32_PWM nullptr
+
+#define DIO33_PIN PINC3
+#define DIO33_RPORT PINC
+#define DIO33_WPORT PORTC
+#define DIO33_DDR DDRC
+#define DIO33_PWM nullptr
+
+#define DIO34_PIN PINC4
+#define DIO34_RPORT PINC
+#define DIO34_WPORT PORTC
+#define DIO34_DDR DDRC
+#define DIO34_PWM nullptr
+
+#define DIO35_PIN PINC5
+#define DIO35_RPORT PINC
+#define DIO35_WPORT PORTC
+#define DIO35_DDR DDRC
+#define DIO35_PWM nullptr
+
+#define DIO36_PIN PINC6
+#define DIO36_RPORT PINC
+#define DIO36_WPORT PORTC
+#define DIO36_DDR DDRC
+#define DIO36_PWM nullptr
+
+#define DIO37_PIN PINC7
+#define DIO37_RPORT PINC
+#define DIO37_WPORT PORTC
+#define DIO37_DDR DDRC
+#define DIO37_PWM nullptr
+
+#define DIO38_PIN PINA0
+#define DIO38_RPORT PINA
+#define DIO38_WPORT PORTA
+#define DIO38_DDR DDRA
+#define DIO38_PWM nullptr
+
+#define DIO39_PIN PINA1
+#define DIO39_RPORT PINA
+#define DIO39_WPORT PORTA
+#define DIO39_DDR DDRA
+#define DIO39_PWM nullptr
+
+#define DIO40_PIN PINA2
+#define DIO40_RPORT PINA
+#define DIO40_WPORT PORTA
+#define DIO40_DDR DDRA
+#define DIO40_PWM nullptr
+
+#define DIO41_PIN PINA3
+#define DIO41_RPORT PINA
+#define DIO41_WPORT PORTA
+#define DIO41_DDR DDRA
+#define DIO41_PWM nullptr
+
+#define DIO42_PIN PINA4
+#define DIO42_RPORT PINA
+#define DIO42_WPORT PORTA
+#define DIO42_DDR DDRA
+#define DIO42_PWM nullptr
+
+#define DIO43_PIN PINA5
+#define DIO43_RPORT PINA
+#define DIO43_WPORT PORTA
+#define DIO43_DDR DDRA
+#define DIO43_PWM nullptr
+
+#define DIO44_PIN PINA6
+#define DIO44_RPORT PINA
+#define DIO44_WPORT PORTA
+#define DIO44_DDR DDRA
+#define DIO44_PWM nullptr
+
+#define DIO45_PIN PINA7
+#define DIO45_RPORT PINA
+#define DIO45_WPORT PORTA
+#define DIO45_DDR DDRA
+#define DIO45_PWM nullptr
+
+#define DIO46_PIN PINF0
+#define DIO46_RPORT PINF
+#define DIO46_WPORT PORTF
+#define DIO46_DDR DDRF
+#define DIO46_PWM nullptr
+
+#define DIO47_PIN PINF1
+#define DIO47_RPORT PINF
+#define DIO47_WPORT PORTF
+#define DIO47_DDR DDRF
+#define DIO47_PWM nullptr
+
+#define DIO48_PIN PINF2
+#define DIO48_RPORT PINF
+#define DIO48_WPORT PORTF
+#define DIO48_DDR DDRF
+#define DIO48_PWM nullptr
+
+#define DIO49_PIN PINF3
+#define DIO49_RPORT PINF
+#define DIO49_WPORT PORTF
+#define DIO49_DDR DDRF
+#define DIO49_PWM nullptr
+
+#define DIO50_PIN PINF4
+#define DIO50_RPORT PINF
+#define DIO50_WPORT PORTF
+#define DIO50_DDR DDRF
+#define DIO50_PWM nullptr
+
+#define DIO51_PIN PINF5
+#define DIO51_RPORT PINF
+#define DIO51_WPORT PORTF
+#define DIO51_DDR DDRF
+#define DIO51_PWM nullptr
+
+#define DIO52_PIN PINF6
+#define DIO52_RPORT PINF
+#define DIO52_WPORT PORTF
+#define DIO52_DDR DDRF
+#define DIO52_PWM nullptr
+
+#define DIO53_PIN PINF7
+#define DIO53_RPORT PINF
+#define DIO53_WPORT PORTF
+#define DIO53_DDR DDRF
+#define DIO53_PWM nullptr
+
+#undef PA0
+#define PA0_PIN PINA0
+#define PA0_RPORT PINA
+#define PA0_WPORT PORTA
+#define PA0_DDR DDRA
+#define PA0_PWM nullptr
+#undef PA1
+#define PA1_PIN PINA1
+#define PA1_RPORT PINA
+#define PA1_WPORT PORTA
+#define PA1_DDR DDRA
+#define PA1_PWM nullptr
+#undef PA2
+#define PA2_PIN PINA2
+#define PA2_RPORT PINA
+#define PA2_WPORT PORTA
+#define PA2_DDR DDRA
+#define PA2_PWM nullptr
+#undef PA3
+#define PA3_PIN PINA3
+#define PA3_RPORT PINA
+#define PA3_WPORT PORTA
+#define PA3_DDR DDRA
+#define PA3_PWM nullptr
+#undef PA4
+#define PA4_PIN PINA4
+#define PA4_RPORT PINA
+#define PA4_WPORT PORTA
+#define PA4_DDR DDRA
+#define PA4_PWM nullptr
+#undef PA5
+#define PA5_PIN PINA5
+#define PA5_RPORT PINA
+#define PA5_WPORT PORTA
+#define PA5_DDR DDRA
+#define PA5_PWM nullptr
+#undef PA6
+#define PA6_PIN PINA6
+#define PA6_RPORT PINA
+#define PA6_WPORT PORTA
+#define PA6_DDR DDRA
+#define PA6_PWM nullptr
+#undef PA7
+#define PA7_PIN PINA7
+#define PA7_RPORT PINA
+#define PA7_WPORT PORTA
+#define PA7_DDR DDRA
+#define PA7_PWM nullptr
+
+#undef PB0
+#define PB0_PIN PINB0
+#define PB0_RPORT PINB
+#define PB0_WPORT PORTB
+#define PB0_DDR DDRB
+#define PB0_PWM nullptr
+#undef PB1
+#define PB1_PIN PINB1
+#define PB1_RPORT PINB
+#define PB1_WPORT PORTB
+#define PB1_DDR DDRB
+#define PB1_PWM nullptr
+#undef PB2
+#define PB2_PIN PINB2
+#define PB2_RPORT PINB
+#define PB2_WPORT PORTB
+#define PB2_DDR DDRB
+#define PB2_PWM nullptr
+#undef PB3
+#define PB3_PIN PINB3
+#define PB3_RPORT PINB
+#define PB3_WPORT PORTB
+#define PB3_DDR DDRB
+#define PB3_PWM nullptr
+#undef PB4
+#define PB4_PIN PINB4
+#define PB4_RPORT PINB
+#define PB4_WPORT PORTB
+#define PB4_DDR DDRB
+#define PB4_PWM &OCR2A
+#undef PB5
+#define PB5_PIN PINB5
+#define PB5_RPORT PINB
+#define PB5_WPORT PORTB
+#define PB5_DDR DDRB
+#define PB5_PWM nullptr
+#undef PB6
+#define PB6_PIN PINB6
+#define PB6_RPORT PINB
+#define PB6_WPORT PORTB
+#define PB6_DDR DDRB
+#define PB6_PWM nullptr
+#undef PB7
+#define PB7_PIN PINB7
+#define PB7_RPORT PINB
+#define PB7_WPORT PORTB
+#define PB7_DDR DDRB
+#define PB7_PWM &OCR0A
+
+#undef PC0
+#define PC0_PIN PINC0
+#define PC0_RPORT PINC
+#define PC0_WPORT PORTC
+#define PC0_DDR DDRC
+#define PC0_PWM nullptr
+#undef PC1
+#define PC1_PIN PINC1
+#define PC1_RPORT PINC
+#define PC1_WPORT PORTC
+#define PC1_DDR DDRC
+#define PC1_PWM nullptr
+#undef PC2
+#define PC2_PIN PINC2
+#define PC2_RPORT PINC
+#define PC2_WPORT PORTC
+#define PC2_DDR DDRC
+#define PC2_PWM nullptr
+#undef PC3
+#define PC3_PIN PINC3
+#define PC3_RPORT PINC
+#define PC3_WPORT PORTC
+#define PC3_DDR DDRC
+#define PC3_PWM nullptr
+#undef PC4
+#define PC4_PIN PINC4
+#define PC4_RPORT PINC
+#define PC4_WPORT PORTC
+#define PC4_DDR DDRC
+#define PC4_PWM nullptr
+#undef PC5
+#define PC5_PIN PINC5
+#define PC5_RPORT PINC
+#define PC5_WPORT PORTC
+#define PC5_DDR DDRC
+#define PC5_PWM nullptr
+#undef PC6
+#define PC6_PIN PINC6
+#define PC6_RPORT PINC
+#define PC6_WPORT PORTC
+#define PC6_DDR DDRC
+#define PC6_PWM nullptr
+#undef PC7
+#define PC7_PIN PINC7
+#define PC7_RPORT PINC
+#define PC7_WPORT PORTC
+#define PC7_DDR DDRC
+#define PC7_PWM nullptr
+
+#undef PD0
+#define PD0_PIN PIND0
+#define PD0_RPORT PIND
+#define PD0_WPORT PORTD
+#define PD0_DDR DDRD
+#define PD0_PWM nullptr
+#undef PD1
+#define PD1_PIN PIND1
+#define PD1_RPORT PIND
+#define PD1_WPORT PORTD
+#define PD1_DDR DDRD
+#define PD1_PWM nullptr
+#undef PD2
+#define PD2_PIN PIND2
+#define PD2_RPORT PIND
+#define PD2_WPORT PORTD
+#define PD2_DDR DDRD
+#define PD2_PWM nullptr
+#undef PD3
+#define PD3_PIN PIND3
+#define PD3_RPORT PIND
+#define PD3_WPORT PORTD
+#define PD3_DDR DDRD
+#define PD3_PWM nullptr
+#undef PD4
+#define PD4_PIN PIND4
+#define PD4_RPORT PIND
+#define PD4_WPORT PORTD
+#define PD4_DDR DDRD
+#define PD4_PWM nullptr
+#undef PD5
+#define PD5_PIN PIND5
+#define PD5_RPORT PIND
+#define PD5_WPORT PORTD
+#define PD5_DDR DDRD
+#define PD5_PWM nullptr
+#undef PD6
+#define PD6_PIN PIND6
+#define PD6_RPORT PIND
+#define PD6_WPORT PORTD
+#define PD6_DDR DDRD
+#define PD6_PWM nullptr
+#undef PD7
+#define PD7_PIN PIND7
+#define PD7_RPORT PIND
+#define PD7_WPORT PORTD
+#define PD7_DDR DDRD
+#define PD7_PWM nullptr
+
+#undef PE0
+#define PE0_PIN PINE0
+#define PE0_RPORT PINE
+#define PE0_WPORT PORTE
+#define PE0_DDR DDRE
+#define PE0_PWM nullptr
+#undef PE1
+#define PE1_PIN PINE1
+#define PE1_RPORT PINE
+#define PE1_WPORT PORTE
+#define PE1_DDR DDRE
+#define PE1_PWM nullptr
+#undef PE2
+#define PE2_PIN PINE2
+#define PE2_RPORT PINE
+#define PE2_WPORT PORTE
+#define PE2_DDR DDRE
+#define PE2_PWM nullptr
+#undef PE3
+#define PE3_PIN PINE3
+#define PE3_RPORT PINE
+#define PE3_WPORT PORTE
+#define PE3_DDR DDRE
+#define PE3_PWM &OCR3AL
+#undef PE4
+#define PE4_PIN PINE4
+#define PE4_RPORT PINE
+#define PE4_WPORT PORTE
+#define PE4_DDR DDRE
+#define PE4_PWM &OCR3BL
+#undef PE5
+#define PE5_PIN PINE5
+#define PE5_RPORT PINE
+#define PE5_WPORT PORTE
+#define PE5_DDR DDRE
+#define PE5_PWM &OCR3CL
+#undef PE6
+#define PE6_PIN PINE6
+#define PE6_RPORT PINE
+#define PE6_WPORT PORTE
+#define PE6_DDR DDRE
+#define PE6_PWM nullptr
+#undef PE7
+#define PE7_PIN PINE7
+#define PE7_RPORT PINE
+#define PE7_WPORT PORTE
+#define PE7_DDR DDRE
+#define PE7_PWM nullptr
+
+#undef PF0
+#define PF0_PIN PINF0
+#define PF0_RPORT PINF
+#define PF0_WPORT PORTF
+#define PF0_DDR DDRF
+#define PF0_PWM nullptr
+#undef PF1
+#define PF1_PIN PINF1
+#define PF1_RPORT PINF
+#define PF1_WPORT PORTF
+#define PF1_DDR DDRF
+#define PF1_PWM nullptr
+#undef PF2
+#define PF2_PIN PINF2
+#define PF2_RPORT PINF
+#define PF2_WPORT PORTF
+#define PF2_DDR DDRF
+#define PF2_PWM nullptr
+#undef PF3
+#define PF3_PIN PINF3
+#define PF3_RPORT PINF
+#define PF3_WPORT PORTF
+#define PF3_DDR DDRF
+#define PF3_PWM nullptr
+#undef PF4
+#define PF4_PIN PINF4
+#define PF4_RPORT PINF
+#define PF4_WPORT PORTF
+#define PF4_DDR DDRF
+#define PF4_PWM nullptr
+#undef PF5
+#define PF5_PIN PINF5
+#define PF5_RPORT PINF
+#define PF5_WPORT PORTF
+#define PF5_DDR DDRF
+#define PF5_PWM nullptr
+#undef PF6
+#define PF6_PIN PINF6
+#define PF6_RPORT PINF
+#define PF6_WPORT PORTF
+#define PF6_DDR DDRF
+#define PF6_PWM nullptr
+#undef PF7
+#define PF7_PIN PINF7
+#define PF7_RPORT PINF
+#define PF7_WPORT PORTF
+#define PF7_DDR DDRF
+#define PF7_PWM nullptr
+
+#undef PG0
+#define PG0_PIN PING0
+#define PG0_RPORT PING
+#define PG0_WPORT PORTG
+#define PG0_DDR DDRG
+#define PG0_PWM nullptr
+#undef PG1
+#define PG1_PIN PING1
+#define PG1_RPORT PING
+#define PG1_WPORT PORTG
+#define PG1_DDR DDRG
+#define PG1_PWM nullptr
+#undef PG2
+#define PG2_PIN PING2
+#define PG2_RPORT PING
+#define PG2_WPORT PORTG
+#define PG2_DDR DDRG
+#define PG2_PWM nullptr
+#undef PG3
+#define PG3_PIN PING3
+#define PG3_RPORT PING
+#define PG3_WPORT PORTG
+#define PG3_DDR DDRG
+#define PG3_PWM nullptr
+#undef PG4
+#define PG4_PIN PING4
+#define PG4_RPORT PING
+#define PG4_WPORT PORTG
+#define PG4_DDR DDRG
+#define PG4_PWM nullptr
+#undef PG5
+#define PG5_PIN PING5
+#define PG5_RPORT PING
+#define PG5_WPORT PORTG
+#define PG5_DDR DDRG
+#define PG5_PWM &OCR0B