Embedded Artists / Mbed OS DMSupport

A board support package for the LPC4088 Display Module.

Dependencies:   DM_HttpServer DM_USBHost

Dependents:   lpc4088_displaymodule_emwin lpc4088_displaymodule_demo_sphere sampleGUI sampleEmptyGUI ... more

Fork of DMSupport by EmbeddedArtists AB

DMBoard.cpp@4:6fdcdf7aff8d, 2014-12-08 (annotated)

Committer:
embeddedartists
Date:
Mon Dec 08 12:48:44 2014 +0000
Revision:
4:6fdcdf7aff8d
Parent:
3:2fa7755f2cef
Child:
5:c77fdb6e3438
Changed touch interface to report last point. Added GPIO-time-measuring support. Fixed USB Host MSD bug that caused HTTPServer to crash

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:6b68dac0d986 1 /*
embeddedartists 0:6b68dac0d986 2 * Copyright 2014 Embedded Artists AB
embeddedartists 0:6b68dac0d986 3 *
embeddedartists 0:6b68dac0d986 4 * Licensed under the Apache License, Version 2.0 (the "License");
embeddedartists 0:6b68dac0d986 5 * you may not use this file except in compliance with the License.
embeddedartists 0:6b68dac0d986 6 * You may obtain a copy of the License at
embeddedartists 0:6b68dac0d986 7 *
embeddedartists 0:6b68dac0d986 8 * http://www.apache.org/licenses/LICENSE-2.0
embeddedartists 0:6b68dac0d986 9 *
embeddedartists 0:6b68dac0d986 10 * Unless required by applicable law or agreed to in writing, software
embeddedartists 0:6b68dac0d986 11 * distributed under the License is distributed on an "AS IS" BASIS,
embeddedartists 0:6b68dac0d986 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
embeddedartists 0:6b68dac0d986 13 * See the License for the specific language governing permissions and
embeddedartists 0:6b68dac0d986 14 * limitations under the License.
embeddedartists 0:6b68dac0d986 15 */
embeddedartists 0:6b68dac0d986 16
embeddedartists 0:6b68dac0d986 17 #include "mbed.h"
embeddedartists 0:6b68dac0d986 18 #include "DMBoard.h"
embeddedartists 0:6b68dac0d986 19 #include "InternalEEPROM.h"
embeddedartists 0:6b68dac0d986 20
embeddedartists 0:6b68dac0d986 21 #if defined(DM_BOARD_USE_TOUCH)
embeddedartists 0:6b68dac0d986 22 #include "AR1021.h"
embeddedartists 0:6b68dac0d986 23 #endif
embeddedartists 0:6b68dac0d986 24
embeddedartists 4:6fdcdf7aff8d 25 #if defined(DM_BOARD_ENABLE_MEASSURING_PINS)
embeddedartists 4:6fdcdf7aff8d 26 #include "meas.h"
embeddedartists 4:6fdcdf7aff8d 27 #endif
embeddedartists 4:6fdcdf7aff8d 28
embeddedartists 0:6b68dac0d986 29 /******************************************************************************
embeddedartists 0:6b68dac0d986 30 * Defines and typedefs
embeddedartists 0:6b68dac0d986 31 *****************************************************************************/
embeddedartists 0:6b68dac0d986 32
embeddedartists 2:887c6b45e7fa 33 #if defined(DM_BOARD_DISABLE_STANDARD_PRINTF)
embeddedartists 2:887c6b45e7fa 34 class DevNull : public Stream {
embeddedartists 2:887c6b45e7fa 35
embeddedartists 2:887c6b45e7fa 36 public:
embeddedartists 2:887c6b45e7fa 37 DevNull(const char *name=NULL) : Stream(name) {}
embeddedartists 2:887c6b45e7fa 38
embeddedartists 2:887c6b45e7fa 39 protected:
embeddedartists 2:887c6b45e7fa 40 virtual int _getc() {return 0;}
embeddedartists 2:887c6b45e7fa 41 virtual int _putc(int c) {return c;}
embeddedartists 2:887c6b45e7fa 42 };
embeddedartists 2:887c6b45e7fa 43
embeddedartists 2:887c6b45e7fa 44 static DevNull null("null");
embeddedartists 2:887c6b45e7fa 45 #endif
embeddedartists 2:887c6b45e7fa 46
embeddedartists 0:6b68dac0d986 47 /******************************************************************************
embeddedartists 0:6b68dac0d986 48 * Local variables
embeddedartists 0:6b68dac0d986 49 *****************************************************************************/
embeddedartists 0:6b68dac0d986 50
embeddedartists 0:6b68dac0d986 51 /******************************************************************************
embeddedartists 0:6b68dac0d986 52 * Private Functions
embeddedartists 0:6b68dac0d986 53 *****************************************************************************/
embeddedartists 0:6b68dac0d986 54
embeddedartists 0:6b68dac0d986 55 DMBoard::DMBoard() :
embeddedartists 0:6b68dac0d986 56 _initialized(false),
embeddedartists 0:6b68dac0d986 57 #if defined(DM_BOARD_USE_MCI_FS)
embeddedartists 0:6b68dac0d986 58 _mcifs("mci", P4_16),
embeddedartists 0:6b68dac0d986 59 #endif
embeddedartists 0:6b68dac0d986 60 #if defined(DM_BOARD_USE_QSPI_FS)
embeddedartists 0:6b68dac0d986 61 _qspifs("qspi"),
embeddedartists 0:6b68dac0d986 62 #endif
embeddedartists 0:6b68dac0d986 63 #if defined(DM_BOARD_USE_TOUCH)
embeddedartists 0:6b68dac0d986 64 _touch(NULL),
embeddedartists 0:6b68dac0d986 65 #endif
embeddedartists 0:6b68dac0d986 66 _buzzer(P1_5),
embeddedartists 0:6b68dac0d986 67 _button(p23),
embeddedartists 0:6b68dac0d986 68 _led1(LED1),
embeddedartists 0:6b68dac0d986 69 _led2(LED2),
embeddedartists 0:6b68dac0d986 70 _led3(LED3),
embeddedartists 0:6b68dac0d986 71 _led4(LED4)
embeddedartists 0:6b68dac0d986 72 {
embeddedartists 0:6b68dac0d986 73 }
embeddedartists 0:6b68dac0d986 74
embeddedartists 0:6b68dac0d986 75 DMBoard::~DMBoard()
embeddedartists 0:6b68dac0d986 76 {
embeddedartists 2:887c6b45e7fa 77 #if defined(DM_BOARD_USE_TOUCH)
embeddedartists 0:6b68dac0d986 78 if (_touch != NULL) {
embeddedartists 0:6b68dac0d986 79 delete _touch;
embeddedartists 0:6b68dac0d986 80 _touch = NULL;
embeddedartists 0:6b68dac0d986 81 }
embeddedartists 2:887c6b45e7fa 82 #endif
embeddedartists 0:6b68dac0d986 83 }
embeddedartists 0:6b68dac0d986 84
embeddedartists 0:6b68dac0d986 85 DMBoard::BoardError DMBoard::readConfiguration()
embeddedartists 0:6b68dac0d986 86 {
embeddedartists 0:6b68dac0d986 87 InternalEEPROM mem;
embeddedartists 0:6b68dac0d986 88 mem.init();
embeddedartists 0:6b68dac0d986 89
embeddedartists 0:6b68dac0d986 90 uint8_t* buff = (uint8_t*)malloc(mem.memorySize());
embeddedartists 0:6b68dac0d986 91 mem.read(0, 0, buff, mem.memorySize());
embeddedartists 0:6b68dac0d986 92 mem.powerDown();
embeddedartists 0:6b68dac0d986 93 #if 0
embeddedartists 0:6b68dac0d986 94 uint8_t* p = buff;
embeddedartists 2:887c6b45e7fa 95 _logger.printf("\n-------\nBEFORE:\n-------\n");
embeddedartists 0:6b68dac0d986 96 for (int i = 0; i < 63; i++) {
embeddedartists 0:6b68dac0d986 97 for (int j = 0; j < 4; j++) {
embeddedartists 2:887c6b45e7fa 98 _logger.printf("0x%04x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
embeddedartists 0:6b68dac0d986 99 i,
embeddedartists 0:6b68dac0d986 100 p[0],p[1],p[2],p[3],p[4],p[5],p[6],p[7],
embeddedartists 0:6b68dac0d986 101 p[8],p[9],p[10],p[11],p[12],p[13],p[14],p[15]);
embeddedartists 0:6b68dac0d986 102 p += 16;
embeddedartists 0:6b68dac0d986 103 }
embeddedartists 2:887c6b45e7fa 104 _logger.printf("\n");
embeddedartists 0:6b68dac0d986 105 }
embeddedartists 0:6b68dac0d986 106
embeddedartists 0:6b68dac0d986 107 // find first non-zero page and write to that
embeddedartists 0:6b68dac0d986 108 for (int page = 0; page < mem.numPages(); page++) {
embeddedartists 0:6b68dac0d986 109 bool zeroPage = true;
embeddedartists 0:6b68dac0d986 110 for (int i = 0; i < mem.pageSize(); i++) {
embeddedartists 0:6b68dac0d986 111 if (buff[i + page*mem.pageSize()] != 0) {
embeddedartists 0:6b68dac0d986 112 zeroPage = false;
embeddedartists 0:6b68dac0d986 113 break;
embeddedartists 0:6b68dac0d986 114 }
embeddedartists 0:6b68dac0d986 115 }
embeddedartists 0:6b68dac0d986 116 if (zeroPage) {
embeddedartists 2:887c6b45e7fa 117 _logger.printf("Will fill page 0x%04x (%d) with 0x00..0x3f\n", page, page);
embeddedartists 0:6b68dac0d986 118 p = buff;
embeddedartists 0:6b68dac0d986 119 for (int i = 0; i < mem.pageSize(); i++) {
embeddedartists 0:6b68dac0d986 120 *p++ = i;
embeddedartists 0:6b68dac0d986 121 }
embeddedartists 0:6b68dac0d986 122 mem.write(page, 0, buff, mem.pageSize());
embeddedartists 0:6b68dac0d986 123 memset(buff, 0, mem.memorySize());
embeddedartists 0:6b68dac0d986 124 mem.read(0, 0, buff, mem.memorySize());
embeddedartists 0:6b68dac0d986 125 p = buff;
embeddedartists 2:887c6b45e7fa 126 _logger.printf("\n-------\nAFTER:\n-------\n");
embeddedartists 0:6b68dac0d986 127 for (int i = 0; i < 63; i++) {
embeddedartists 0:6b68dac0d986 128 for (int j = 0; j < 4; j++) {
embeddedartists 2:887c6b45e7fa 129 _logger.printf("0x%04x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
embeddedartists 0:6b68dac0d986 130 i,
embeddedartists 0:6b68dac0d986 131 p[0],p[1],p[2],p[3],p[4],p[5],p[6],p[7],
embeddedartists 0:6b68dac0d986 132 p[8],p[9],p[10],p[11],p[12],p[13],p[14],p[15]);
embeddedartists 0:6b68dac0d986 133 p += 16;
embeddedartists 0:6b68dac0d986 134 }
embeddedartists 2:887c6b45e7fa 135 _logger.printf("\n");
embeddedartists 0:6b68dac0d986 136 }
embeddedartists 0:6b68dac0d986 137 break;
embeddedartists 0:6b68dac0d986 138 }
embeddedartists 0:6b68dac0d986 139 }
embeddedartists 0:6b68dac0d986 140 #endif
embeddedartists 0:6b68dac0d986 141 return Ok;
embeddedartists 0:6b68dac0d986 142 }
embeddedartists 0:6b68dac0d986 143
embeddedartists 0:6b68dac0d986 144 #if defined(DM_BOARD_USE_DISPLAY)
embeddedartists 0:6b68dac0d986 145 DMBoard::BoardError DMBoard::readDisplayConfiguration(uint8_t** data, uint32_t* size)
embeddedartists 0:6b68dac0d986 146 {
embeddedartists 0:6b68dac0d986 147 uint32_t allocsize = 17*sizeof(uint32_t);
embeddedartists 0:6b68dac0d986 148 uint32_t* stuff = (uint32_t*)malloc(allocsize);
embeddedartists 0:6b68dac0d986 149 if (stuff == NULL) {
embeddedartists 0:6b68dac0d986 150 return MemoryError;
embeddedartists 0:6b68dac0d986 151 }
embeddedartists 0:6b68dac0d986 152 #if defined(DM_BOARD_USE_4_3_DISPLAY_TMP)
embeddedartists 0:6b68dac0d986 153 // Temporary setup, for a 4.3" display
embeddedartists 0:6b68dac0d986 154
embeddedartists 0:6b68dac0d986 155 stuff[ 0] = 40, //horizontalBackPorch == HSYNC back porch
embeddedartists 0:6b68dac0d986 156 stuff[ 1] = 5, //horizontalFrontPorch == HSYNC front porch
embeddedartists 0:6b68dac0d986 157 stuff[ 2] = 2, //hsync == HSYNC width
embeddedartists 0:6b68dac0d986 158 stuff[ 3] = 480, //width == Horizontal active area
embeddedartists 0:6b68dac0d986 159 stuff[ 4] = 8, //verticalBackPorch == VSYNC back porch
embeddedartists 0:6b68dac0d986 160 stuff[ 5] = 8, //verticalFrontPorch == VSYNC front porch
embeddedartists 0:6b68dac0d986 161 stuff[ 6] = 2, //vsync == VSYNC width
embeddedartists 0:6b68dac0d986 162 stuff[ 7] = 272, //height == Vertical display area
embeddedartists 0:6b68dac0d986 163 stuff[ 8] = false,
embeddedartists 0:6b68dac0d986 164 stuff[ 9] = false,
embeddedartists 0:6b68dac0d986 165 stuff[10] = true,
embeddedartists 0:6b68dac0d986 166 stuff[11] = true,
embeddedartists 0:6b68dac0d986 167 stuff[12] = 1,
embeddedartists 0:6b68dac0d986 168 stuff[13] = Display::Resolution_16bit_rgb565;
embeddedartists 0:6b68dac0d986 169 stuff[14] = 9000000, //clock or 0 for external
embeddedartists 0:6b68dac0d986 170 stuff[15] = 0, //LcdController::Tft,
embeddedartists 0:6b68dac0d986 171 stuff[16] = false;
embeddedartists 0:6b68dac0d986 172 #else
embeddedartists 0:6b68dac0d986 173 // Temporary setup, for a 5" rogin display
embeddedartists 0:6b68dac0d986 174
embeddedartists 0:6b68dac0d986 175 stuff[ 0] = 46, //horizontalBackPorch == HSYNC back porch
embeddedartists 0:6b68dac0d986 176 stuff[ 1] = 20, //horizontalFrontPorch == HSYNC front porch
embeddedartists 0:6b68dac0d986 177 stuff[ 2] = 2, //hsync == HSYNC width
embeddedartists 0:6b68dac0d986 178 stuff[ 3] = 800, //width == Horizontal active area
embeddedartists 0:6b68dac0d986 179 stuff[ 4] = 23, //verticalBackPorch == VSYNC back porch
embeddedartists 0:6b68dac0d986 180 stuff[ 5] = 10, //verticalFrontPorch == VSYNC front porch
embeddedartists 0:6b68dac0d986 181 stuff[ 6] = 3, //vsync == VSYNC width
embeddedartists 0:6b68dac0d986 182 stuff[ 7] = 480, //height == Vertical display area
embeddedartists 0:6b68dac0d986 183 stuff[ 8] = false,
embeddedartists 0:6b68dac0d986 184 stuff[ 9] = false,
embeddedartists 0:6b68dac0d986 185 stuff[10] = true,
embeddedartists 0:6b68dac0d986 186 stuff[11] = true,
embeddedartists 0:6b68dac0d986 187 stuff[12] = 1,
embeddedartists 0:6b68dac0d986 188 stuff[13] = Display::Resolution_16bit_rgb565;
embeddedartists 0:6b68dac0d986 189 stuff[14] = 30000000, //clock or 0 for external
embeddedartists 0:6b68dac0d986 190 stuff[15] = 0, //LcdController::Tft,
embeddedartists 0:6b68dac0d986 191 stuff[16] = false;
embeddedartists 0:6b68dac0d986 192 #endif
embeddedartists 0:6b68dac0d986 193 *data = (uint8_t*)&(stuff[0]);
embeddedartists 0:6b68dac0d986 194 *size = allocsize;
embeddedartists 0:6b68dac0d986 195
embeddedartists 0:6b68dac0d986 196 return Ok;
embeddedartists 0:6b68dac0d986 197 }
embeddedartists 0:6b68dac0d986 198 #endif
embeddedartists 0:6b68dac0d986 199
embeddedartists 0:6b68dac0d986 200 /******************************************************************************
embeddedartists 0:6b68dac0d986 201 * Public Functions
embeddedartists 0:6b68dac0d986 202 *****************************************************************************/
embeddedartists 0:6b68dac0d986 203
embeddedartists 0:6b68dac0d986 204 DMBoard::BoardError DMBoard::init()
embeddedartists 0:6b68dac0d986 205 {
embeddedartists 0:6b68dac0d986 206 BoardError err = Ok;
embeddedartists 0:6b68dac0d986 207 if (!_initialized) {
embeddedartists 0:6b68dac0d986 208 do {
embeddedartists 0:6b68dac0d986 209 // Turn off the buzzer
embeddedartists 0:6b68dac0d986 210 _buzzer.period_ms(1);
embeddedartists 0:6b68dac0d986 211 _buzzer = 0;
embeddedartists 0:6b68dac0d986 212
embeddedartists 0:6b68dac0d986 213 // Make sure the button is configured correctly
embeddedartists 0:6b68dac0d986 214 _button.mode(PullUp);
embeddedartists 0:6b68dac0d986 215
embeddedartists 0:6b68dac0d986 216 // Turn off all LEDs
embeddedartists 0:6b68dac0d986 217 _led1 = 1;
embeddedartists 0:6b68dac0d986 218 _led2 = 1;
embeddedartists 0:6b68dac0d986 219 _led3 = 0;
embeddedartists 0:6b68dac0d986 220 _led4 = 0;
embeddedartists 0:6b68dac0d986 221
embeddedartists 2:887c6b45e7fa 222 // Make sure that the logger is always initialized even if
embeddedartists 2:887c6b45e7fa 223 // other initialization tasks fail
embeddedartists 2:887c6b45e7fa 224 _logger.init();
embeddedartists 4:6fdcdf7aff8d 225
embeddedartists 4:6fdcdf7aff8d 226 #if defined(DM_BOARD_ENABLE_MEASSURING_PINS)
embeddedartists 4:6fdcdf7aff8d 227 _INTERNAL_INIT_MEAS();
embeddedartists 4:6fdcdf7aff8d 228 #endif
embeddedartists 2:887c6b45e7fa 229
embeddedartists 2:887c6b45e7fa 230 #if defined(DM_BOARD_DISABLE_STANDARD_PRINTF)
embeddedartists 2:887c6b45e7fa 231 // Kill all ouput of calls to printf() so that there is no
embeddedartists 2:887c6b45e7fa 232 // simultaneous calls into the non-thread-safe standard libraries.
embeddedartists 2:887c6b45e7fa 233 // User code should use the RtosLogger anyway.
embeddedartists 2:887c6b45e7fa 234 freopen("/null", "w", stdout);
embeddedartists 2:887c6b45e7fa 235 #endif
embeddedartists 2:887c6b45e7fa 236
embeddedartists 3:2fa7755f2cef 237 #if defined(DM_BOARD_USE_QSPI) || defined(DM_BOARD_USE_QSPI_FS)
embeddedartists 0:6b68dac0d986 238 if (SPIFI::instance().init() != SPIFI::Ok) {
embeddedartists 0:6b68dac0d986 239 err = SpifiError;
embeddedartists 0:6b68dac0d986 240 break;
embeddedartists 0:6b68dac0d986 241 }
embeddedartists 0:6b68dac0d986 242 #endif
embeddedartists 0:6b68dac0d986 243
embeddedartists 0:6b68dac0d986 244 readConfiguration();
embeddedartists 0:6b68dac0d986 245
embeddedartists 0:6b68dac0d986 246 #if defined(DM_BOARD_USE_DISPLAY)
embeddedartists 0:6b68dac0d986 247 if (Display::instance().init() != Display::Ok) {
embeddedartists 0:6b68dac0d986 248 err = DisplayError;
embeddedartists 0:6b68dac0d986 249 break;
embeddedartists 0:6b68dac0d986 250 }
embeddedartists 0:6b68dac0d986 251 #endif
embeddedartists 0:6b68dac0d986 252
embeddedartists 0:6b68dac0d986 253 #if defined(DM_BOARD_USE_TOUCH)
embeddedartists 0:6b68dac0d986 254 //if (... configuration says AR1021...) {
embeddedartists 0:6b68dac0d986 255 _touch = new AR1021(P2_27, P2_26, P2_22, P2_23, P2_25);
embeddedartists 4:6fdcdf7aff8d 256 // if (!_touch->init(Display::instance().width(), Display::instance().height())) {
embeddedartists 4:6fdcdf7aff8d 257 // err = TouchError;
embeddedartists 4:6fdcdf7aff8d 258 // break;
embeddedartists 4:6fdcdf7aff8d 259 // }
embeddedartists 4:6fdcdf7aff8d 260 int att;
embeddedartists 4:6fdcdf7aff8d 261 for (att = 1; att <= 3; att++) {
embeddedartists 4:6fdcdf7aff8d 262 if (_touch->init(Display::instance().width(), Display::instance().height())) {
embeddedartists 4:6fdcdf7aff8d 263 break;
embeddedartists 4:6fdcdf7aff8d 264 }
embeddedartists 4:6fdcdf7aff8d 265 _logger.printf("Failed to init touch, trying again...\n");
embeddedartists 4:6fdcdf7aff8d 266 wait_ms(500);
embeddedartists 4:6fdcdf7aff8d 267 }
embeddedartists 4:6fdcdf7aff8d 268 if (att > 3) {
embeddedartists 0:6b68dac0d986 269 err = TouchError;
embeddedartists 0:6b68dac0d986 270 break;
embeddedartists 0:6b68dac0d986 271 }
embeddedartists 0:6b68dac0d986 272 //}
embeddedartists 0:6b68dac0d986 273 #endif
embeddedartists 0:6b68dac0d986 274
embeddedartists 0:6b68dac0d986 275
embeddedartists 0:6b68dac0d986 276 _initialized = true;
embeddedartists 0:6b68dac0d986 277 } while(0);
embeddedartists 0:6b68dac0d986 278 }
embeddedartists 0:6b68dac0d986 279 return err;
embeddedartists 0:6b68dac0d986 280 }
embeddedartists 0:6b68dac0d986 281
embeddedartists 2:887c6b45e7fa 282 void DMBoard::setLED(Leds led, bool on)
embeddedartists 0:6b68dac0d986 283 {
embeddedartists 0:6b68dac0d986 284 switch(led) {
embeddedartists 2:887c6b45e7fa 285 case Led1:
embeddedartists 0:6b68dac0d986 286 _led1 = (on ? 0 : 1);
embeddedartists 0:6b68dac0d986 287 break;
embeddedartists 2:887c6b45e7fa 288 case Led2:
embeddedartists 0:6b68dac0d986 289 _led2 = (on ? 0 : 1);
embeddedartists 0:6b68dac0d986 290 break;
embeddedartists 2:887c6b45e7fa 291 case Led3:
embeddedartists 0:6b68dac0d986 292 _led3 = (on ? 1 : 0);
embeddedartists 0:6b68dac0d986 293 break;
embeddedartists 2:887c6b45e7fa 294 case Led4:
embeddedartists 0:6b68dac0d986 295 _led4 = (on ? 1 : 0);
embeddedartists 0:6b68dac0d986 296 break;
embeddedartists 0:6b68dac0d986 297 }
embeddedartists 0:6b68dac0d986 298 }
embeddedartists 0:6b68dac0d986 299
embeddedartists 0:6b68dac0d986 300 void DMBoard::buzzer(float value)
embeddedartists 0:6b68dac0d986 301 {
embeddedartists 0:6b68dac0d986 302 if (value < 0) {
embeddedartists 0:6b68dac0d986 303 value = 0;
embeddedartists 0:6b68dac0d986 304 } else if (value > 1) {
embeddedartists 0:6b68dac0d986 305 value = 1;
embeddedartists 0:6b68dac0d986 306 }
embeddedartists 0:6b68dac0d986 307 _buzzer = value;
embeddedartists 0:6b68dac0d986 308 }
embeddedartists 0:6b68dac0d986 309
embeddedartists 0:6b68dac0d986 310 bool DMBoard::buttonPressed()
embeddedartists 0:6b68dac0d986 311 {
embeddedartists 0:6b68dac0d986 312 return _button.read() == 0;
embeddedartists 0:6b68dac0d986 313 }
embeddedartists 0:6b68dac0d986 314