Andy K
/
Lib17_Core
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include/Lib17_DIO.h@1:2f99edb5545c, 2011-04-11 (annotated)
- Committer:
- AjK
- Date:
- Mon Apr 11 15:39:47 2011 +0000
- Revision:
- 1:2f99edb5545c
- Parent:
- 0:127224866798
- Child:
- 2:b77d327026af
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| AjK | 0:127224866798 | 1 | /**************************************************************************** |
| AjK | 0:127224866798 | 2 | * Product: LIB17 Open Source Library |
| AjK | 0:127224866798 | 3 | * |
| AjK | 0:127224866798 | 4 | * Steller Technologies Limited |
| AjK | 0:127224866798 | 5 | * ---------------------------- |
| AjK | 0:127224866798 | 6 | * |
| AjK | 0:127224866798 | 7 | * Copyright (C) 2002-2011 Steller Technologies Limited. All rights reserved. |
| AjK | 0:127224866798 | 8 | * |
| AjK | 0:127224866798 | 9 | * This software may be distributed and modified under the terms of the GNU |
| AjK | 0:127224866798 | 10 | * General Public License version 2 (GPL) as published by the Free Software |
| AjK | 0:127224866798 | 11 | * Foundation and appearing in the file GPL.TXT included in the packaging of |
| AjK | 0:127224866798 | 12 | * this file. Please note that GPL Section 2[b] requires that all works based |
| AjK | 0:127224866798 | 13 | * on this software must also be made publicly available under the terms of |
| AjK | 0:127224866798 | 14 | * the GPL ("Copyleft"). |
| AjK | 0:127224866798 | 15 | * |
| AjK | 0:127224866798 | 16 | * Alternatively, this software may be distributed and modified under the |
| AjK | 0:127224866798 | 17 | * terms of Steller Technologies Limited commercial licenses, which expressly |
| AjK | 0:127224866798 | 18 | * supersede the GPL and are specifically designed for licensees interested in |
| AjK | 0:127224866798 | 19 | * retaining the proprietary status of their code. |
| AjK | 0:127224866798 | 20 | * |
| AjK | 1:2f99edb5545c | 21 | * $Id:$ |
| AjK | 1:2f99edb5545c | 22 | * |
| AjK | 0:127224866798 | 23 | ***************************************************************************/ |
| AjK | 0:127224866798 | 24 | |
| AjK | 1:2f99edb5545c | 25 | /** |
| AjK | 1:2f99edb5545c | 26 | * @file Lib17_DIO.h |
| AjK | 1:2f99edb5545c | 27 | * @see http://cornflakes.wikidot.com/lib17:core |
| AjK | 1:2f99edb5545c | 28 | * @defgroup API The Lib17 Core API |
| AjK | 1:2f99edb5545c | 29 | * @defgroup Lib17_DIO Lib17_DIO functions |
| AjK | 1:2f99edb5545c | 30 | */ |
| AjK | 1:2f99edb5545c | 31 | |
| AjK | 0:127224866798 | 32 | #ifndef AJK_Lib17_DIO_H |
| AjK | 0:127224866798 | 33 | #define AJK_Lib17_DIO_H |
| AjK | 0:127224866798 | 34 | |
| AjK | 0:127224866798 | 35 | #include "Lib17_Mbed.h" |
| AjK | 0:127224866798 | 36 | #include "Lib17_IOmacros.h" |
| AjK | 0:127224866798 | 37 | |
| AjK | 0:127224866798 | 38 | namespace AjK { |
| AjK | 0:127224866798 | 39 | |
| AjK | 1:2f99edb5545c | 40 | /** Lib17_DIO - Adds pin input/output objects. |
| AjK | 1:2f99edb5545c | 41 | * |
| AjK | 1:2f99edb5545c | 42 | * The Mbed library supplies the DigitalIn and DigitalOut objects to allow you |
| AjK | 1:2f99edb5545c | 43 | * to specify ins and outs. |
| AjK | 1:2f99edb5545c | 44 | * |
| AjK | 1:2f99edb5545c | 45 | * Lib17_DIO allows library objects to implement pins without the requirement |
| AjK | 1:2f99edb5545c | 46 | * to link against the Mbed library. This increase portability when using |
| AjK | 1:2f99edb5545c | 47 | * alternate compilers (such as the Code Red GCC C++ compiler for LPCXpresso). |
| AjK | 1:2f99edb5545c | 48 | */ |
| AjK | 0:127224866798 | 49 | class Lib17_DIO { |
| AjK | 0:127224866798 | 50 | public: |
| AjK | 0:127224866798 | 51 | enum Direction { |
| AjK | 0:127224866798 | 52 | Out = 0 |
| AjK | 0:127224866798 | 53 | , In |
| AjK | 0:127224866798 | 54 | }; |
| AjK | 0:127224866798 | 55 | |
| AjK | 0:127224866798 | 56 | protected: |
| AjK | 0:127224866798 | 57 | PinName pin; |
| AjK | 0:127224866798 | 58 | uint32_t mask; |
| AjK | 0:127224866798 | 59 | uint32_t fiodir; |
| AjK | 0:127224866798 | 60 | uint32_t fiomask; |
| AjK | 0:127224866798 | 61 | uint32_t fiopin; |
| AjK | 0:127224866798 | 62 | uint32_t fioset; |
| AjK | 0:127224866798 | 63 | uint32_t fioclr; |
| AjK | 0:127224866798 | 64 | |
| AjK | 0:127224866798 | 65 | inline void setpin(PinName p) { pin = p; } |
| AjK | 0:127224866798 | 66 | inline void setmask(PinName p) { mask = (uint32_t)(1UL << ((uint32_t)p & 0x1F)); } |
| AjK | 0:127224866798 | 67 | inline void setDir(PinName p) { fiodir = (uint32_t)(p & ~0x1F) + 0x00; } |
| AjK | 0:127224866798 | 68 | inline void setMask(PinName p) { fiomask = (uint32_t)(p & ~0x1F) + 0x10; } |
| AjK | 0:127224866798 | 69 | inline void setPin(PinName p) { fiopin = (uint32_t)(p & ~0x1F) + 0x14; } |
| AjK | 0:127224866798 | 70 | inline void setSet(PinName p) { fioset = (uint32_t)(p & ~0x1F) + 0x18; } |
| AjK | 0:127224866798 | 71 | inline void setClr(PinName p) { fioclr = (uint32_t)(p & ~0x1F) + 0x1C; } |
| AjK | 0:127224866798 | 72 | |
| AjK | 0:127224866798 | 73 | inline void pinUp() { *((volatile uint32_t *)fioset) = mask; } |
| AjK | 0:127224866798 | 74 | inline void pinDn() { *((volatile uint32_t *)fioclr) = mask; } |
| AjK | 0:127224866798 | 75 | inline uint32_t pinIs() { return *((volatile uint32_t *)(fiopin)) & mask; } |
| AjK | 0:127224866798 | 76 | |
| AjK | 0:127224866798 | 77 | public: |
| AjK | 0:127224866798 | 78 | |
| AjK | 0:127224866798 | 79 | Lib17_DIO(PinName p, Direction d = Out, PinMode m = PullDown) { init(p, d, m); }; |
| AjK | 0:127224866798 | 80 | |
| AjK | 1:2f99edb5545c | 81 | /** |
| AjK | 1:2f99edb5545c | 82 | * write |
| AjK | 1:2f99edb5545c | 83 | * |
| AjK | 1:2f99edb5545c | 84 | * Writes a value to the pin. |
| AjK | 1:2f99edb5545c | 85 | * |
| AjK | 1:2f99edb5545c | 86 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 87 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 88 | * @ingroup API |
| AjK | 1:2f99edb5545c | 89 | * @param i Zero makes the pin 0v, non-zero makes the pin 1. |
| AjK | 1:2f99edb5545c | 90 | */ |
| AjK | 0:127224866798 | 91 | void write(int i) { if (i!=0) { pinUp(); } else { pinDn(); } } |
| AjK | 1:2f99edb5545c | 92 | |
| AjK | 1:2f99edb5545c | 93 | /** |
| AjK | 1:2f99edb5545c | 94 | * read |
| AjK | 1:2f99edb5545c | 95 | * |
| AjK | 1:2f99edb5545c | 96 | * Reads the value on the pin. |
| AjK | 1:2f99edb5545c | 97 | * |
| AjK | 1:2f99edb5545c | 98 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 99 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 100 | * @ingroup API |
| AjK | 1:2f99edb5545c | 101 | * @return int 0v returns zero, otherwise returns 1. |
| AjK | 1:2f99edb5545c | 102 | */ |
| AjK | 0:127224866798 | 103 | int read(void) { return pinIs() ? 1 : 0; }; |
| AjK | 1:2f99edb5545c | 104 | |
| AjK | 1:2f99edb5545c | 105 | /** |
| AjK | 1:2f99edb5545c | 106 | * output |
| AjK | 1:2f99edb5545c | 107 | * |
| AjK | 1:2f99edb5545c | 108 | * Setup the pin to be an output. |
| AjK | 1:2f99edb5545c | 109 | * |
| AjK | 1:2f99edb5545c | 110 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 111 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 112 | * @ingroup API |
| AjK | 1:2f99edb5545c | 113 | * @return int 0v returns zero, otherwise returns 1. |
| AjK | 1:2f99edb5545c | 114 | */ |
| AjK | 0:127224866798 | 115 | void output(void) { *((volatile uint32_t *)fiodir) |= mask; } |
| AjK | 1:2f99edb5545c | 116 | |
| AjK | 1:2f99edb5545c | 117 | /** |
| AjK | 1:2f99edb5545c | 118 | * input |
| AjK | 1:2f99edb5545c | 119 | * |
| AjK | 1:2f99edb5545c | 120 | * Setup the pin to be an input. |
| AjK | 1:2f99edb5545c | 121 | * |
| AjK | 1:2f99edb5545c | 122 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 123 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 124 | * @ingroup API |
| AjK | 1:2f99edb5545c | 125 | * @return int 0v returns zero, otherwise returns 1. |
| AjK | 1:2f99edb5545c | 126 | */ |
| AjK | 0:127224866798 | 127 | void input(void) { *((volatile uint32_t *)fiodir) &= ~mask; } |
| AjK | 0:127224866798 | 128 | |
| AjK | 1:2f99edb5545c | 129 | /** |
| AjK | 1:2f99edb5545c | 130 | * getPin |
| AjK | 1:2f99edb5545c | 131 | * |
| AjK | 1:2f99edb5545c | 132 | * Get the PinName this object is operating on. |
| AjK | 1:2f99edb5545c | 133 | * |
| AjK | 1:2f99edb5545c | 134 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 135 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 136 | * @ingroup API |
| AjK | 1:2f99edb5545c | 137 | * @return int 0v returns zero, otherwise returns 1. |
| AjK | 1:2f99edb5545c | 138 | */ |
| AjK | 0:127224866798 | 139 | PinName getPin(void) { return pin; } |
| AjK | 1:2f99edb5545c | 140 | |
| AjK | 1:2f99edb5545c | 141 | /** |
| AjK | 1:2f99edb5545c | 142 | * getDirection |
| AjK | 1:2f99edb5545c | 143 | * |
| AjK | 1:2f99edb5545c | 144 | * Get the operational direction this pin is setup for. |
| AjK | 1:2f99edb5545c | 145 | * |
| AjK | 1:2f99edb5545c | 146 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 147 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 148 | * @ingroup API |
| AjK | 1:2f99edb5545c | 149 | * @return int 0v returns zero, otherwise returns 1. |
| AjK | 1:2f99edb5545c | 150 | */ |
| AjK | 0:127224866798 | 151 | int getDirection(void) { return *((volatile uint32_t *)fiomask) & mask ? 1 : 0; } |
| AjK | 0:127224866798 | 152 | |
| AjK | 1:2f99edb5545c | 153 | /** |
| AjK | 1:2f99edb5545c | 154 | * operator int() |
| AjK | 1:2f99edb5545c | 155 | * |
| AjK | 1:2f99edb5545c | 156 | * Reads the value on the pin. |
| AjK | 1:2f99edb5545c | 157 | * |
| AjK | 1:2f99edb5545c | 158 | * @see read |
| AjK | 1:2f99edb5545c | 159 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 160 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 161 | * @ingroup API |
| AjK | 1:2f99edb5545c | 162 | * @return int 0v returns zero, otherwise returns 1. |
| AjK | 1:2f99edb5545c | 163 | */ |
| AjK | 0:127224866798 | 164 | operator int() { return read(); } |
| AjK | 1:2f99edb5545c | 165 | |
| AjK | 1:2f99edb5545c | 166 | /** |
| AjK | 1:2f99edb5545c | 167 | * operator= |
| AjK | 1:2f99edb5545c | 168 | * |
| AjK | 1:2f99edb5545c | 169 | * Writes a value to the pin. |
| AjK | 1:2f99edb5545c | 170 | * |
| AjK | 1:2f99edb5545c | 171 | * @see write |
| AjK | 1:2f99edb5545c | 172 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 173 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 174 | * @ingroup API |
| AjK | 1:2f99edb5545c | 175 | */ |
| AjK | 0:127224866798 | 176 | Lib17_DIO& operator= (int value) { write(value); return *this; } |
| AjK | 1:2f99edb5545c | 177 | |
| AjK | 1:2f99edb5545c | 178 | /** |
| AjK | 1:2f99edb5545c | 179 | * operator= |
| AjK | 1:2f99edb5545c | 180 | * |
| AjK | 1:2f99edb5545c | 181 | * Writes a value to the pin. |
| AjK | 1:2f99edb5545c | 182 | * |
| AjK | 1:2f99edb5545c | 183 | * @see write |
| AjK | 1:2f99edb5545c | 184 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 185 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 186 | * @ingroup API |
| AjK | 1:2f99edb5545c | 187 | */ |
| AjK | 0:127224866798 | 188 | Lib17_DIO& operator= (Lib17_DIO& rhs) { write(rhs.read()); return *this; } |
| AjK | 0:127224866798 | 189 | |
| AjK | 1:2f99edb5545c | 190 | /** |
| AjK | 1:2f99edb5545c | 191 | * getMask |
| AjK | 1:2f99edb5545c | 192 | * |
| AjK | 1:2f99edb5545c | 193 | * Get the mask value for this pin. |
| AjK | 1:2f99edb5545c | 194 | * |
| AjK | 1:2f99edb5545c | 195 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 196 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 197 | * @ingroup API |
| AjK | 1:2f99edb5545c | 198 | * @return uint32_t The mask value used by this pin. |
| AjK | 1:2f99edb5545c | 199 | */ |
| AjK | 0:127224866798 | 200 | uint32_t getMask(void) { return mask; } |
| AjK | 1:2f99edb5545c | 201 | |
| AjK | 1:2f99edb5545c | 202 | /** |
| AjK | 1:2f99edb5545c | 203 | * getFiodir |
| AjK | 1:2f99edb5545c | 204 | * |
| AjK | 1:2f99edb5545c | 205 | * Get the FIODIR register for the port the pin is on. |
| AjK | 1:2f99edb5545c | 206 | * |
| AjK | 1:2f99edb5545c | 207 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 208 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 209 | * @ingroup API |
| AjK | 1:2f99edb5545c | 210 | * @return uint32_t The register value. |
| AjK | 1:2f99edb5545c | 211 | */ |
| AjK | 0:127224866798 | 212 | uint32_t getFiodir(void) { return fiodir; } |
| AjK | 1:2f99edb5545c | 213 | |
| AjK | 1:2f99edb5545c | 214 | /** |
| AjK | 1:2f99edb5545c | 215 | * getFiomask |
| AjK | 1:2f99edb5545c | 216 | * |
| AjK | 1:2f99edb5545c | 217 | * Get the FIOMASK register for the port the pin is on. |
| AjK | 1:2f99edb5545c | 218 | * |
| AjK | 1:2f99edb5545c | 219 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 220 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 221 | * @ingroup API |
| AjK | 1:2f99edb5545c | 222 | * @return uint32_t The register value. |
| AjK | 1:2f99edb5545c | 223 | */ |
| AjK | 0:127224866798 | 224 | uint32_t getFiomask(void) { return fiomask; } |
| AjK | 1:2f99edb5545c | 225 | |
| AjK | 1:2f99edb5545c | 226 | /** |
| AjK | 1:2f99edb5545c | 227 | * getFiopin |
| AjK | 1:2f99edb5545c | 228 | * |
| AjK | 1:2f99edb5545c | 229 | * Get the FIOPIN register for the port the pin is on. |
| AjK | 1:2f99edb5545c | 230 | * |
| AjK | 1:2f99edb5545c | 231 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 232 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 233 | * @ingroup API |
| AjK | 1:2f99edb5545c | 234 | * @return uint32_t The register value. |
| AjK | 1:2f99edb5545c | 235 | */ |
| AjK | 0:127224866798 | 236 | uint32_t getFiopin(void) { return fiopin; } |
| AjK | 1:2f99edb5545c | 237 | |
| AjK | 1:2f99edb5545c | 238 | /** |
| AjK | 1:2f99edb5545c | 239 | * getFioset |
| AjK | 1:2f99edb5545c | 240 | * |
| AjK | 1:2f99edb5545c | 241 | * Get the FIOSET register for the port the pin is on. |
| AjK | 1:2f99edb5545c | 242 | * |
| AjK | 1:2f99edb5545c | 243 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 244 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 245 | * @ingroup API |
| AjK | 1:2f99edb5545c | 246 | * @return uint32_t The register value. |
| AjK | 1:2f99edb5545c | 247 | */ |
| AjK | 0:127224866798 | 248 | uint32_t getFioset(void) { return fioset; } |
| AjK | 1:2f99edb5545c | 249 | |
| AjK | 1:2f99edb5545c | 250 | /** |
| AjK | 1:2f99edb5545c | 251 | * getFioclr |
| AjK | 1:2f99edb5545c | 252 | * |
| AjK | 1:2f99edb5545c | 253 | * Get the FIOCLR register for the port the pin is on. |
| AjK | 1:2f99edb5545c | 254 | * |
| AjK | 1:2f99edb5545c | 255 | * @see http://cornflakes.wikidot.com/lib17:core:lib17-dio |
| AjK | 1:2f99edb5545c | 256 | * @ingroup Lib17_DIO |
| AjK | 1:2f99edb5545c | 257 | * @ingroup API |
| AjK | 1:2f99edb5545c | 258 | * @return uint32_t The register value. |
| AjK | 1:2f99edb5545c | 259 | */ |
| AjK | 0:127224866798 | 260 | uint32_t getFioclr(void) { return fioclr; } |
| AjK | 0:127224866798 | 261 | |
| AjK | 0:127224866798 | 262 | |
| AjK | 0:127224866798 | 263 | protected: |
| AjK | 0:127224866798 | 264 | void init(PinName p, Direction d, PinMode m) |
| AjK | 0:127224866798 | 265 | { |
| AjK | 0:127224866798 | 266 | // We rely on the fact that by default the LPC1768 |
| AjK | 0:127224866798 | 267 | // sets all pins to be GPIO. The user will change |
| AjK | 0:127224866798 | 268 | // that if they need to. So we don't bother trying |
| AjK | 0:127224866798 | 269 | // to setup PINSELx |
| AjK | 0:127224866798 | 270 | |
| AjK | 0:127224866798 | 271 | // psel(); // Not used, see above. |
| AjK | 0:127224866798 | 272 | |
| AjK | 0:127224866798 | 273 | setpin(p); |
| AjK | 0:127224866798 | 274 | setmask(p); |
| AjK | 0:127224866798 | 275 | setDir(p); |
| AjK | 0:127224866798 | 276 | setMask(p); |
| AjK | 0:127224866798 | 277 | setPin(p); |
| AjK | 0:127224866798 | 278 | setSet(p); |
| AjK | 0:127224866798 | 279 | setClr(p); |
| AjK | 0:127224866798 | 280 | |
| AjK | 0:127224866798 | 281 | if (d == Out) output(); |
| AjK | 0:127224866798 | 282 | else mode( m ); |
| AjK | 0:127224866798 | 283 | } |
| AjK | 0:127224866798 | 284 | |
| AjK | 0:127224866798 | 285 | protected: |
| AjK | 0:127224866798 | 286 | void psel(void) |
| AjK | 0:127224866798 | 287 | { |
| AjK | 0:127224866798 | 288 | uint32_t ppsel, pumask; |
| AjK | 0:127224866798 | 289 | |
| AjK | 0:127224866798 | 290 | if (pin >= P0_0 && pin <= P0_15) ppsel = (uint32_t)(&LPC_PINCON->PINSEL0); |
| AjK | 0:127224866798 | 291 | else if (pin >= P0_16 && pin <= P0_31) ppsel = (uint32_t)(&LPC_PINCON->PINSEL1); |
| AjK | 0:127224866798 | 292 | else if (pin >= P1_0 && pin <= P1_15) ppsel = (uint32_t)(&LPC_PINCON->PINSEL2); |
| AjK | 0:127224866798 | 293 | else if (pin >= P1_16 && pin <= P1_31) ppsel = (uint32_t)(&LPC_PINCON->PINSEL3); |
| AjK | 0:127224866798 | 294 | else if (pin >= P2_0 && pin <= P2_15) ppsel = (uint32_t)(&LPC_PINCON->PINSEL4); |
| AjK | 0:127224866798 | 295 | else if (pin >= P3_16 && pin <= P3_31) ppsel = (uint32_t)(&LPC_PINCON->PINSEL7); |
| AjK | 0:127224866798 | 296 | else if (pin >= P4_16 && pin <= P4_31) ppsel = (uint32_t)(&LPC_PINCON->PINSEL9); |
| AjK | 0:127224866798 | 297 | else return; |
| AjK | 0:127224866798 | 298 | |
| AjK | 0:127224866798 | 299 | pumask = ~(3UL << ((pin & 0x1F)>>1)); |
| AjK | 0:127224866798 | 300 | *((volatile uint32_t *)ppsel) &= pumask; |
| AjK | 0:127224866798 | 301 | } |
| AjK | 0:127224866798 | 302 | |
| AjK | 0:127224866798 | 303 | public: |
| AjK | 0:127224866798 | 304 | void mode(PinMode m) |
| AjK | 0:127224866798 | 305 | { |
| AjK | 0:127224866798 | 306 | uint32_t ppmod, pumask; |
| AjK | 0:127224866798 | 307 | |
| AjK | 0:127224866798 | 308 | if (m == OpenDrain) { |
| AjK | 0:127224866798 | 309 | openDrain(1); |
| AjK | 0:127224866798 | 310 | } |
| AjK | 0:127224866798 | 311 | else { |
| AjK | 0:127224866798 | 312 | if (pin >= P0_0 && pin <= P0_15) { |
| AjK | 0:127224866798 | 313 | ppmod = (uint32_t)(&LPC_PINCON->PINMODE0); |
| AjK | 0:127224866798 | 314 | pumask = ((m & 0x3) << ( ((pin & 0x1F)-0)*2) ); |
| AjK | 0:127224866798 | 315 | } |
| AjK | 0:127224866798 | 316 | else if (pin >= P0_16 && pin <= P0_31) { |
| AjK | 0:127224866798 | 317 | ppmod = (uint32_t)(&LPC_PINCON->PINMODE1); |
| AjK | 0:127224866798 | 318 | pumask = ((m & 0x3) << ( ((pin & 0x1F)-16)*2) ); |
| AjK | 0:127224866798 | 319 | } |
| AjK | 0:127224866798 | 320 | else if (pin >= P1_0 && pin <= P1_15) { |
| AjK | 0:127224866798 | 321 | ppmod = (uint32_t)(&LPC_PINCON->PINMODE2); |
| AjK | 0:127224866798 | 322 | pumask = ((m & 0x3) << ( ((pin & 0x1F)-0)*2) ); |
| AjK | 0:127224866798 | 323 | } |
| AjK | 0:127224866798 | 324 | else if (pin >= P1_16 && pin <= P1_31) { |
| AjK | 0:127224866798 | 325 | ppmod = (uint32_t)(&LPC_PINCON->PINMODE3); |
| AjK | 0:127224866798 | 326 | pumask = ((m & 0x3) << ( ((pin & 0x1F)-16)*2) ); |
| AjK | 0:127224866798 | 327 | } |
| AjK | 0:127224866798 | 328 | else if (pin >= P2_0 && pin <= P2_15) { |
| AjK | 0:127224866798 | 329 | ppmod = (uint32_t)(&LPC_PINCON->PINMODE4); |
| AjK | 0:127224866798 | 330 | pumask = ((m & 0x3) << ( ((pin & 0x1F)-0)*2) ); |
| AjK | 0:127224866798 | 331 | } |
| AjK | 0:127224866798 | 332 | else if (pin >= P3_16 && pin <= P3_31) { |
| AjK | 0:127224866798 | 333 | ppmod = (uint32_t)(&LPC_PINCON->PINMODE7); |
| AjK | 0:127224866798 | 334 | pumask = ((m & 0x3) << ( ((pin & 0x1F)-16)*2) ); |
| AjK | 0:127224866798 | 335 | } |
| AjK | 0:127224866798 | 336 | else if (pin >= P4_16 && pin <= P4_31) { |
| AjK | 0:127224866798 | 337 | ppmod = (uint32_t)(&LPC_PINCON->PINMODE9); |
| AjK | 0:127224866798 | 338 | pumask = ((m & 0x3) << ( ((pin & 0x1F)-16)*2) ); |
| AjK | 0:127224866798 | 339 | } |
| AjK | 0:127224866798 | 340 | else return; |
| AjK | 0:127224866798 | 341 | |
| AjK | 0:127224866798 | 342 | *((volatile uint32_t *)ppmod) |= pumask; |
| AjK | 0:127224866798 | 343 | } |
| AjK | 0:127224866798 | 344 | } |
| AjK | 0:127224866798 | 345 | |
| AjK | 0:127224866798 | 346 | public: |
| AjK | 0:127224866798 | 347 | void openDrain(int i = 1) |
| AjK | 0:127224866798 | 348 | { |
| AjK | 0:127224866798 | 349 | if (pin >= P0_0 && pin <= P0_31) { if (i) LPC_PINCON->PINMODE_OD0 |= mask; else LPC_PINCON->PINMODE_OD0 &= ~mask; } |
| AjK | 0:127224866798 | 350 | else if (pin >= P1_0 && pin <= P1_31) { if (i) LPC_PINCON->PINMODE_OD1 |= mask; else LPC_PINCON->PINMODE_OD1 &= ~mask; } |
| AjK | 0:127224866798 | 351 | else if (pin >= P2_0 && pin <= P2_31) { if (i) LPC_PINCON->PINMODE_OD2 |= mask; else LPC_PINCON->PINMODE_OD2 &= ~mask; } |
| AjK | 0:127224866798 | 352 | else if (pin >= P3_16 && pin <= P3_31) { if (i) LPC_PINCON->PINMODE_OD3 |= mask; else LPC_PINCON->PINMODE_OD3 &= ~mask; } |
| AjK | 0:127224866798 | 353 | else if (pin >= P4_16 && pin <= P4_31) { if (i) LPC_PINCON->PINMODE_OD4 |= mask; else LPC_PINCON->PINMODE_OD4 &= ~mask; } |
| AjK | 0:127224866798 | 354 | } |
| AjK | 0:127224866798 | 355 | |
| AjK | 0:127224866798 | 356 | }; |
| AjK | 0:127224866798 | 357 | |
| AjK | 0:127224866798 | 358 | }; /* namespace AjK ends. */ |
| AjK | 0:127224866798 | 359 | |
| AjK | 0:127224866798 | 360 | using namespace AjK; |
| AjK | 0:127224866798 | 361 | |
| AjK | 0:127224866798 | 362 | #endif /* AJK_Lib17_DIO_H */ |