1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
/**
* 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
/**
* Fast I/O Routines for Teensy 3.5 and Teensy 3.6
* Use direct port manipulation to save scads of processor time.
* Contributed by Triffid_Hunter and modified by Kliment, thinkyhead, Bob-the-Kuhn, et.al.
*/
#ifndef MASK
#define MASK(PIN) _BV(PIN)
#endif
#define GPIO_BITBAND_ADDR(reg, bit) (((uint32_t)&(reg) - 0x40000000) * 32 + (bit) * 4 + 0x42000000)
#define GPIO_BITBAND(reg, bit) (*(uint32_t *)GPIO_BITBAND_ADDR((reg), (bit)))
/**
* Magic I/O routines
*
* Now you can simply SET_OUTPUT(PIN); WRITE(PIN, HIGH); WRITE(PIN, LOW);
*
* Why double up on these macros? see https://gcc.gnu.org/onlinedocs/gcc-4.8.5/cpp/Stringification.html
*/
#define _READ(P) bool(CORE_PIN ## P ## _PINREG & CORE_PIN ## P ## _BITMASK)
#define _WRITE(P,V) do{ \
if (V) CORE_PIN ## P ## _PORTSET = CORE_PIN ## P ## _BITMASK; \
else CORE_PIN ## P ## _PORTCLEAR = CORE_PIN ## P ## _BITMASK; \
}while(0)
#define _TOGGLE(P) (*(&(CORE_PIN ## P ## _PORTCLEAR)+1) = CORE_PIN ## P ## _BITMASK)
#define _SET_INPUT(P) do{ \
CORE_PIN ## P ## _CONFIG = PORT_PCR_MUX(1); \
GPIO_BITBAND(CORE_PIN ## P ## _DDRREG , CORE_PIN ## P ## _BIT) = 0; \
}while(0)
#define _SET_OUTPUT(P) do{ \
CORE_PIN ## P ## _CONFIG = PORT_PCR_MUX(1)|PORT_PCR_SRE|PORT_PCR_DSE; \
GPIO_BITBAND(CORE_PIN ## P ## _DDRREG , CORE_PIN ## P ## _BIT) = 1; \
}while(0)
#define _SET_INPUT_PULLUP(P) do{ \
CORE_PIN ## P ## _CONFIG = PORT_PCR_MUX(1) | PORT_PCR_PE | PORT_PCR_PS; \
GPIO_BITBAND(CORE_PIN ## P ## _DDRREG , CORE_PIN ## P ## _BIT) = 0; \
}while(0)
#define _IS_INPUT(P) ((CORE_PIN ## P ## _DDRREG & CORE_PIN ## P ## _BITMASK) == 0)
#define _IS_OUTPUT(P) ((CORE_PIN ## P ## _DDRREG & CORE_PIN ## P ## _BITMASK) == 0)
#define READ(IO) _READ(IO)
#define WRITE(IO,V) _WRITE(IO,V)
#define TOGGLE(IO) _TOGGLE(IO)
#define SET_INPUT(IO) _SET_INPUT(IO)
#define SET_INPUT_PULLUP(IO) _SET_INPUT_PULLUP(IO)
#define SET_INPUT_PULLDOWN SET_INPUT
#define SET_OUTPUT(IO) _SET_OUTPUT(IO)
#define SET_PWM SET_OUTPUT
#define IS_INPUT(IO) _IS_INPUT(IO)
#define IS_OUTPUT(IO) _IS_OUTPUT(IO)
#define OUT_WRITE(IO,V) do{ SET_OUTPUT(IO); WRITE(IO,V); }while(0)
// digitalRead/Write wrappers
#define extDigitalRead(IO) digitalRead(IO)
#define extDigitalWrite(IO,V) digitalWrite(IO,V)
#define PWM_PIN(P) digitalPinHasPWM(P)
/**
* Ports, functions, and pins
*/
#define DIO0_PIN 8
|
