Yoshitaka Kuwata / sseg

7 segment display library for mbed This routine support 2,4 and 8 digit anode-common or cathode-common LED.

Dependents:   7segMbed

Sseg.cpp@9:6d3229c8dc0f, 2015-01-12 (annotated)

Committer:
morecat_lab
Date:
Mon Jan 12 08:18:59 2015 +0000
Revision:
9:6d3229c8dc0f
Parent:
7:a19431131213
Child:
10:1b8dbe52e5a8
avoid overflow 32bit counter  (~=30min)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
morecat_lab 0:6bf4ee8ee342 1 /*
morecat_lab 4:858e42224b50 2 Sseg.cpp - mbed library for 2/4/8 digit seven segment LED driver.
morecat_lab 4:858e42224b50 3 Copyright 2013,2014 by morecat_lab
morecat_lab 0:6bf4ee8ee342 4
morecat_lab 0:6bf4ee8ee342 5 base on Dots library.
morecat_lab 0:6bf4ee8ee342 6 Copyright 2010 arms22. All right reserved.
morecat_lab 0:6bf4ee8ee342 7
morecat_lab 0:6bf4ee8ee342 8 This library is distributed in the hope that it will be useful,
morecat_lab 0:6bf4ee8ee342 9 but WITHOUT ANY WARRANTY; without even the implied warranty of
morecat_lab 0:6bf4ee8ee342 10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
morecat_lab 0:6bf4ee8ee342 11 */
morecat_lab 0:6bf4ee8ee342 12
morecat_lab 0:6bf4ee8ee342 13 #include "Sseg.h"
morecat_lab 0:6bf4ee8ee342 14 #include <Timer.h>
morecat_lab 0:6bf4ee8ee342 15
morecat_lab 0:6bf4ee8ee342 16 const int Sseg::numConv[] = {
morecat_lab 0:6bf4ee8ee342 17 NUM_PAT_0, NUM_PAT_1, NUM_PAT_2, NUM_PAT_3,
morecat_lab 0:6bf4ee8ee342 18 NUM_PAT_4, NUM_PAT_5, NUM_PAT_6, NUM_PAT_7,
morecat_lab 0:6bf4ee8ee342 19 NUM_PAT_8, NUM_PAT_9, NUM_PAT_A, NUM_PAT_B,
morecat_lab 0:6bf4ee8ee342 20 NUM_PAT_C, NUM_PAT_D, NUM_PAT_E, NUM_PAT_F};
morecat_lab 0:6bf4ee8ee342 21
morecat_lab 0:6bf4ee8ee342 22 // 2 digit
morecat_lab 0:6bf4ee8ee342 23 Sseg::Sseg(PinName a,PinName b,PinName c,PinName d,
morecat_lab 0:6bf4ee8ee342 24 PinName e,PinName f,PinName g,PinName dp,
morecat_lab 0:6bf4ee8ee342 25 PinName d1,PinName d2) :
morecat_lab 0:6bf4ee8ee342 26 _segPins( dp, g, f, e, d, c, b, a), _digPins(d1, d2)
morecat_lab 0:6bf4ee8ee342 27 {
morecat_lab 0:6bf4ee8ee342 28 _numOfDigs = 2;
morecat_lab 0:6bf4ee8ee342 29 _updateInterval = (8333 / 2);
morecat_lab 0:6bf4ee8ee342 30 _zeroSupress = true;
morecat_lab 0:6bf4ee8ee342 31 _kcommon = false;
morecat_lab 7:a19431131213 32 _sinkDriver = false;
morecat_lab 0:6bf4ee8ee342 33 }
morecat_lab 0:6bf4ee8ee342 34
morecat_lab 0:6bf4ee8ee342 35 // 4 digit
morecat_lab 0:6bf4ee8ee342 36 Sseg::Sseg(PinName a,PinName b,PinName c,PinName d,
morecat_lab 0:6bf4ee8ee342 37 PinName e,PinName f,PinName g,PinName dp,
morecat_lab 0:6bf4ee8ee342 38 PinName d1,PinName d2,PinName d3,PinName d4) :
morecat_lab 0:6bf4ee8ee342 39 _segPins( dp, g, f, e, d, c, b, a), _digPins(d1, d2, d3, d4)
morecat_lab 0:6bf4ee8ee342 40 {
morecat_lab 0:6bf4ee8ee342 41 _numOfDigs = 4;
morecat_lab 0:6bf4ee8ee342 42 _updateInterval = (8333 / 4);
morecat_lab 0:6bf4ee8ee342 43 _zeroSupress = true;
morecat_lab 0:6bf4ee8ee342 44 _kcommon = false;
morecat_lab 7:a19431131213 45 _sinkDriver = false;
morecat_lab 0:6bf4ee8ee342 46 }
morecat_lab 0:6bf4ee8ee342 47
morecat_lab 0:6bf4ee8ee342 48 // 8 digit
morecat_lab 0:6bf4ee8ee342 49 Sseg::Sseg(PinName a,PinName b,PinName c,PinName d,
morecat_lab 0:6bf4ee8ee342 50 PinName e,PinName f,PinName g,PinName dp,
morecat_lab 0:6bf4ee8ee342 51 PinName d1,PinName d2,PinName d3,PinName d4,
morecat_lab 0:6bf4ee8ee342 52 PinName d5,PinName d6,PinName d7,PinName d8) :
morecat_lab 0:6bf4ee8ee342 53 _segPins( dp, g, f, e, d, c, b, a), _digPins(d1, d2, d3, d4, d5, d6, d7, d8)
morecat_lab 0:6bf4ee8ee342 54 {
morecat_lab 0:6bf4ee8ee342 55 _numOfDigs = 8;
morecat_lab 0:6bf4ee8ee342 56 _updateInterval = (8333 / 8);
morecat_lab 0:6bf4ee8ee342 57 _zeroSupress = true;
morecat_lab 0:6bf4ee8ee342 58 _kcommon = false;
morecat_lab 7:a19431131213 59 _sinkDriver = false;
morecat_lab 0:6bf4ee8ee342 60 }
morecat_lab 0:6bf4ee8ee342 61
morecat_lab 0:6bf4ee8ee342 62
morecat_lab 0:6bf4ee8ee342 63 void Sseg::begin(void) {
morecat_lab 0:6bf4ee8ee342 64 timer.start();
morecat_lab 0:6bf4ee8ee342 65 clear();
morecat_lab 0:6bf4ee8ee342 66 }
morecat_lab 0:6bf4ee8ee342 67
morecat_lab 0:6bf4ee8ee342 68 void Sseg::setAcommon(void) {
morecat_lab 0:6bf4ee8ee342 69 _kcommon = false;
morecat_lab 0:6bf4ee8ee342 70 }
morecat_lab 0:6bf4ee8ee342 71
morecat_lab 0:6bf4ee8ee342 72 void Sseg::setKcommon(void) {
morecat_lab 0:6bf4ee8ee342 73 _kcommon = true;
morecat_lab 0:6bf4ee8ee342 74 }
morecat_lab 0:6bf4ee8ee342 75
morecat_lab 7:a19431131213 76 void Sseg::setSinkDriver(void) {
morecat_lab 7:a19431131213 77 _sinkDriver = true;
morecat_lab 7:a19431131213 78 }
morecat_lab 7:a19431131213 79
morecat_lab 0:6bf4ee8ee342 80 char Sseg::segCh(char i) {
morecat_lab 0:6bf4ee8ee342 81 return Sseg::numConv[i];
morecat_lab 0:6bf4ee8ee342 82 }
morecat_lab 0:6bf4ee8ee342 83
morecat_lab 0:6bf4ee8ee342 84 void Sseg::setDot(int d) {
morecat_lab 0:6bf4ee8ee342 85 _buffer[d] |= 0x01;
morecat_lab 0:6bf4ee8ee342 86 }
morecat_lab 0:6bf4ee8ee342 87
morecat_lab 0:6bf4ee8ee342 88 void Sseg::clearDot(int d) {
morecat_lab 0:6bf4ee8ee342 89 _buffer[d] &= 0xfe;
morecat_lab 0:6bf4ee8ee342 90 }
morecat_lab 0:6bf4ee8ee342 91
morecat_lab 0:6bf4ee8ee342 92 void Sseg::writeNum(int n) {
morecat_lab 0:6bf4ee8ee342 93 if (_numOfDigs == 2) {
morecat_lab 0:6bf4ee8ee342 94 writeNum2(n);
morecat_lab 0:6bf4ee8ee342 95 } else if (_numOfDigs == 4) {
morecat_lab 0:6bf4ee8ee342 96 writeNum4(n);
morecat_lab 0:6bf4ee8ee342 97 } else if (_numOfDigs == 8) {
morecat_lab 0:6bf4ee8ee342 98 writeNum8((long)n);
morecat_lab 0:6bf4ee8ee342 99 }
morecat_lab 0:6bf4ee8ee342 100 }
morecat_lab 0:6bf4ee8ee342 101
morecat_lab 0:6bf4ee8ee342 102 void Sseg::writeNum2(int n) {
morecat_lab 0:6bf4ee8ee342 103 if (n < 100) {
morecat_lab 0:6bf4ee8ee342 104 _buffer[0] = segCh((n % 100) / 10);
morecat_lab 0:6bf4ee8ee342 105 _buffer[1] = segCh(n % 10);
morecat_lab 0:6bf4ee8ee342 106 Sseg::supressZero();
morecat_lab 0:6bf4ee8ee342 107 } else {
morecat_lab 0:6bf4ee8ee342 108 _buffer[0] = _buffer[1] = 0x02;// overflow
morecat_lab 0:6bf4ee8ee342 109 }
morecat_lab 0:6bf4ee8ee342 110 }
morecat_lab 0:6bf4ee8ee342 111
morecat_lab 0:6bf4ee8ee342 112 void Sseg::writeNum4(int n) {
morecat_lab 0:6bf4ee8ee342 113 if (n < 10000) {
morecat_lab 0:6bf4ee8ee342 114 _buffer[0] = segCh((n % 10000) / 1000);
morecat_lab 0:6bf4ee8ee342 115 _buffer[1] = segCh((n % 1000) / 100);
morecat_lab 0:6bf4ee8ee342 116 _buffer[2] = segCh((n % 100) / 10);
morecat_lab 0:6bf4ee8ee342 117 _buffer[3] = segCh(n % 10);
morecat_lab 0:6bf4ee8ee342 118 Sseg::supressZero();
morecat_lab 0:6bf4ee8ee342 119 } else {
morecat_lab 0:6bf4ee8ee342 120 _buffer[0] = _buffer[1] = _buffer[2] = _buffer[3] = 0x02;// overflow
morecat_lab 0:6bf4ee8ee342 121 }
morecat_lab 0:6bf4ee8ee342 122 }
morecat_lab 0:6bf4ee8ee342 123
morecat_lab 0:6bf4ee8ee342 124 void Sseg::writeNum8(int n) {
morecat_lab 0:6bf4ee8ee342 125 _buffer[0] = segCh((n % 100000000) / 10000000);
morecat_lab 0:6bf4ee8ee342 126 _buffer[1] = segCh((n % 10000000) / 1000000);
morecat_lab 0:6bf4ee8ee342 127 _buffer[2] = segCh((n % 1000000) / 100000);
morecat_lab 0:6bf4ee8ee342 128 _buffer[3] = segCh((n % 100000) / 10000);
morecat_lab 0:6bf4ee8ee342 129 _buffer[4] = segCh((n % 10000) / 1000);
morecat_lab 0:6bf4ee8ee342 130 _buffer[5] = segCh((n % 1000) / 100);
morecat_lab 0:6bf4ee8ee342 131 _buffer[6] = segCh((n % 100) / 10);
morecat_lab 0:6bf4ee8ee342 132 _buffer[7] = segCh(n % 10);
morecat_lab 0:6bf4ee8ee342 133 Sseg::supressZero();
morecat_lab 0:6bf4ee8ee342 134 }
morecat_lab 0:6bf4ee8ee342 135
morecat_lab 0:6bf4ee8ee342 136 void Sseg::writeNum(char d1, char d2) {
morecat_lab 0:6bf4ee8ee342 137 _buffer[0] = segCh(d1);
morecat_lab 0:6bf4ee8ee342 138 _buffer[1] = segCh(d2);
morecat_lab 0:6bf4ee8ee342 139 Sseg::supressZero();
morecat_lab 0:6bf4ee8ee342 140 }
morecat_lab 0:6bf4ee8ee342 141
morecat_lab 0:6bf4ee8ee342 142 void Sseg::writeNum(char d1, char d2, char d3, char d4) {
morecat_lab 0:6bf4ee8ee342 143 _buffer[0] = segCh(d1);
morecat_lab 0:6bf4ee8ee342 144 _buffer[1] = segCh(d2);
morecat_lab 0:6bf4ee8ee342 145 _buffer[2] = segCh(d3);
morecat_lab 0:6bf4ee8ee342 146 _buffer[3] = segCh(d4);
morecat_lab 0:6bf4ee8ee342 147 Sseg::supressZero();
morecat_lab 0:6bf4ee8ee342 148 }
morecat_lab 0:6bf4ee8ee342 149
morecat_lab 0:6bf4ee8ee342 150 void Sseg::writeNum(char d1, char d2, char d3, char d4,
morecat_lab 0:6bf4ee8ee342 151 char d5, char d6, char d7, char d8)
morecat_lab 0:6bf4ee8ee342 152 {
morecat_lab 0:6bf4ee8ee342 153 _buffer[0] = segCh(d1);
morecat_lab 0:6bf4ee8ee342 154 _buffer[1] = segCh(d2);
morecat_lab 0:6bf4ee8ee342 155 _buffer[2] = segCh(d3);
morecat_lab 0:6bf4ee8ee342 156 _buffer[3] = segCh(d4);
morecat_lab 0:6bf4ee8ee342 157 _buffer[4] = segCh(d5);
morecat_lab 0:6bf4ee8ee342 158 _buffer[5] = segCh(d6);
morecat_lab 0:6bf4ee8ee342 159 _buffer[6] = segCh(d7);
morecat_lab 0:6bf4ee8ee342 160 _buffer[7] = segCh(d8);
morecat_lab 0:6bf4ee8ee342 161 Sseg::supressZero();
morecat_lab 0:6bf4ee8ee342 162 }
morecat_lab 0:6bf4ee8ee342 163
morecat_lab 0:6bf4ee8ee342 164 void Sseg::writeHex(int n) {
morecat_lab 0:6bf4ee8ee342 165 if(_numOfDigs == 2) {
morecat_lab 0:6bf4ee8ee342 166 _buffer[0] = segCh((n >> 4) & 0xf);
morecat_lab 0:6bf4ee8ee342 167 _buffer[1] = segCh(n & 0xf);
morecat_lab 0:6bf4ee8ee342 168 } else if (_numOfDigs == 4) {
morecat_lab 0:6bf4ee8ee342 169 _buffer[0] = segCh((n >> 12) & 0xf);
morecat_lab 0:6bf4ee8ee342 170 _buffer[1] = segCh((n >> 8) & 0xf);
morecat_lab 0:6bf4ee8ee342 171 _buffer[2] = segCh((n >> 4) & 0xf);
morecat_lab 0:6bf4ee8ee342 172 _buffer[3] = segCh(n & 0xf);
morecat_lab 0:6bf4ee8ee342 173 }
morecat_lab 0:6bf4ee8ee342 174 Sseg::supressZero();
morecat_lab 0:6bf4ee8ee342 175 }
morecat_lab 0:6bf4ee8ee342 176
morecat_lab 0:6bf4ee8ee342 177 void Sseg::writeHex(long n) {
morecat_lab 0:6bf4ee8ee342 178 _buffer[0] = segCh((n >> 28) & 0xf);
morecat_lab 0:6bf4ee8ee342 179 _buffer[1] = segCh((n >> 24) & 0xf);
morecat_lab 0:6bf4ee8ee342 180 _buffer[2] = segCh((n >> 20) & 0xf);
morecat_lab 0:6bf4ee8ee342 181 _buffer[3] = segCh((n >> 16) & 0xf);
morecat_lab 0:6bf4ee8ee342 182 _buffer[4] = segCh((n >> 12) & 0xf);
morecat_lab 0:6bf4ee8ee342 183 _buffer[5] = segCh((n >> 8) & 0xf);
morecat_lab 0:6bf4ee8ee342 184 _buffer[6] = segCh((n >> 4) & 0xf);
morecat_lab 0:6bf4ee8ee342 185 _buffer[7] = segCh(n & 0xf);
morecat_lab 0:6bf4ee8ee342 186 Sseg::supressZero();
morecat_lab 0:6bf4ee8ee342 187 }
morecat_lab 0:6bf4ee8ee342 188
morecat_lab 0:6bf4ee8ee342 189 void Sseg::setZeroSupress(bool t) {
morecat_lab 0:6bf4ee8ee342 190 _zeroSupress = t;
morecat_lab 0:6bf4ee8ee342 191 }
morecat_lab 0:6bf4ee8ee342 192
morecat_lab 0:6bf4ee8ee342 193 void Sseg::supressZero() {
morecat_lab 0:6bf4ee8ee342 194 int i;
morecat_lab 0:6bf4ee8ee342 195 if (_zeroSupress ) {
morecat_lab 0:6bf4ee8ee342 196 for (i = 0 ; i < (_numOfDigs-1) ; i++) {
morecat_lab 0:6bf4ee8ee342 197 if (_buffer[i] == segCh(0)) {
morecat_lab 0:6bf4ee8ee342 198 _buffer[i] = _buffer[i] & 0x1;
morecat_lab 0:6bf4ee8ee342 199 } else {
morecat_lab 0:6bf4ee8ee342 200 break;
morecat_lab 0:6bf4ee8ee342 201 }
morecat_lab 0:6bf4ee8ee342 202 }
morecat_lab 0:6bf4ee8ee342 203 }
morecat_lab 0:6bf4ee8ee342 204 }
morecat_lab 0:6bf4ee8ee342 205
morecat_lab 0:6bf4ee8ee342 206 void Sseg::writeRawData(char d1, char d2) {
morecat_lab 0:6bf4ee8ee342 207 _buffer[0] = d1;
morecat_lab 0:6bf4ee8ee342 208 _buffer[1] = d2;
morecat_lab 0:6bf4ee8ee342 209 }
morecat_lab 0:6bf4ee8ee342 210
morecat_lab 0:6bf4ee8ee342 211 void Sseg::writeRawData(char d1, char d2, char d3, char d4) {
morecat_lab 0:6bf4ee8ee342 212 _buffer[0] = d1;
morecat_lab 0:6bf4ee8ee342 213 _buffer[1] = d2;
morecat_lab 0:6bf4ee8ee342 214 _buffer[2] = d3;
morecat_lab 0:6bf4ee8ee342 215 _buffer[3] = d4;
morecat_lab 0:6bf4ee8ee342 216 }
morecat_lab 0:6bf4ee8ee342 217
morecat_lab 0:6bf4ee8ee342 218 void Sseg::writeRawData(char d1, char d2, char d3, char d4,
morecat_lab 0:6bf4ee8ee342 219 char d5, char d6, char d7, char d8)
morecat_lab 0:6bf4ee8ee342 220 {
morecat_lab 0:6bf4ee8ee342 221 _buffer[0] = d1;
morecat_lab 0:6bf4ee8ee342 222 _buffer[1] = d2;
morecat_lab 0:6bf4ee8ee342 223 _buffer[2] = d3;
morecat_lab 0:6bf4ee8ee342 224 _buffer[3] = d4;
morecat_lab 0:6bf4ee8ee342 225 _buffer[4] = d5;
morecat_lab 0:6bf4ee8ee342 226 _buffer[5] = d6;
morecat_lab 0:6bf4ee8ee342 227 _buffer[6] = d7;
morecat_lab 0:6bf4ee8ee342 228 _buffer[7] = d8;
morecat_lab 0:6bf4ee8ee342 229 }
morecat_lab 0:6bf4ee8ee342 230
morecat_lab 0:6bf4ee8ee342 231 void Sseg::write(uint8_t x, uint8_t y, uint8_t value) {
morecat_lab 0:6bf4ee8ee342 232 uint8_t tmp,msk;
morecat_lab 0:6bf4ee8ee342 233 tmp = _buffer[y];
morecat_lab 0:6bf4ee8ee342 234 msk = 0x80 >> x;
morecat_lab 0:6bf4ee8ee342 235 tmp = tmp & ~msk;
morecat_lab 0:6bf4ee8ee342 236 tmp = tmp | (value ? msk : 0);
morecat_lab 0:6bf4ee8ee342 237 _buffer[y] = tmp;
morecat_lab 0:6bf4ee8ee342 238 }
morecat_lab 0:6bf4ee8ee342 239
morecat_lab 1:12daa491059c 240 void Sseg::write(uint8_t d, uint8_t value) {
morecat_lab 1:12daa491059c 241 _buffer[d] = value;
morecat_lab 0:6bf4ee8ee342 242 }
morecat_lab 0:6bf4ee8ee342 243
morecat_lab 0:6bf4ee8ee342 244 void Sseg::write(uint8_t y, const uint8_t values[], uint8_t size) {
morecat_lab 0:6bf4ee8ee342 245 uint8_t i;
morecat_lab 0:6bf4ee8ee342 246 for(i=0;i<size;i++)
morecat_lab 0:6bf4ee8ee342 247 _buffer[(y++) & 0x07] = values[i];
morecat_lab 0:6bf4ee8ee342 248 }
morecat_lab 0:6bf4ee8ee342 249
morecat_lab 0:6bf4ee8ee342 250 void Sseg::clear(void) {
morecat_lab 0:6bf4ee8ee342 251 int i;
morecat_lab 0:6bf4ee8ee342 252 for(i=0;i<8;i++){
morecat_lab 0:6bf4ee8ee342 253 _buffer[i] = 0;
morecat_lab 0:6bf4ee8ee342 254 }
morecat_lab 0:6bf4ee8ee342 255 _dig = _numOfDigs - 1;
morecat_lab 0:6bf4ee8ee342 256 }
morecat_lab 0:6bf4ee8ee342 257
morecat_lab 0:6bf4ee8ee342 258 void Sseg::turnOff(void) {
morecat_lab 0:6bf4ee8ee342 259 if ( _kcommon) {
morecat_lab 0:6bf4ee8ee342 260 _digPins = _digPins & (1 << _dig); // set LOW
morecat_lab 0:6bf4ee8ee342 261 } else {
morecat_lab 0:6bf4ee8ee342 262 _digPins = _digPins | (~(1 << _dig)); // set HIGH
morecat_lab 0:6bf4ee8ee342 263 }
morecat_lab 0:6bf4ee8ee342 264 }
morecat_lab 0:6bf4ee8ee342 265
morecat_lab 0:6bf4ee8ee342 266 void Sseg::turnOn(void) {
morecat_lab 0:6bf4ee8ee342 267 if ( _kcommon) {
morecat_lab 0:6bf4ee8ee342 268 _digPins = _digPins | (~(1 << _dig)); // set HIGH
morecat_lab 0:6bf4ee8ee342 269 } else {
morecat_lab 0:6bf4ee8ee342 270 _digPins = _digPins & (1 << _dig); // set LOW
morecat_lab 0:6bf4ee8ee342 271 }
morecat_lab 0:6bf4ee8ee342 272 }
morecat_lab 0:6bf4ee8ee342 273
morecat_lab 0:6bf4ee8ee342 274 void Sseg::updateSeg(void) {
morecat_lab 0:6bf4ee8ee342 275 if( (++_dig) >= _numOfDigs)
morecat_lab 0:6bf4ee8ee342 276 _dig = 0;
morecat_lab 7:a19431131213 277 _segPins = (( _kcommon) || (_sinkDriver)) ? _buffer[_dig] : ~_buffer[_dig];
morecat_lab 0:6bf4ee8ee342 278 }
morecat_lab 0:6bf4ee8ee342 279
morecat_lab 0:6bf4ee8ee342 280 bool Sseg::update(void) {
morecat_lab 0:6bf4ee8ee342 281 int t = timer.read_us();
morecat_lab 0:6bf4ee8ee342 282 bool sync = false;
morecat_lab 0:6bf4ee8ee342 283 if((t - _lastUpdateTime) > _updateInterval){
morecat_lab 0:6bf4ee8ee342 284 turnOff();
morecat_lab 0:6bf4ee8ee342 285 updateSeg();
morecat_lab 0:6bf4ee8ee342 286 turnOn();
morecat_lab 0:6bf4ee8ee342 287 _lastUpdateTime = t;
morecat_lab 0:6bf4ee8ee342 288 sync = (_dig == 0);
morecat_lab 0:6bf4ee8ee342 289 }
morecat_lab 0:6bf4ee8ee342 290 return sync;
morecat_lab 0:6bf4ee8ee342 291 }
morecat_lab 0:6bf4ee8ee342 292
morecat_lab 0:6bf4ee8ee342 293 void Sseg::updateWithDelay(int ms) {
morecat_lab 9:6d3229c8dc0f 294 timer.reset(); // to avoid overflow 32bit counter (~=30min)
morecat_lab 0:6bf4ee8ee342 295 int start = timer.read_ms();
morecat_lab 0:6bf4ee8ee342 296 do {
morecat_lab 0:6bf4ee8ee342 297 bool sync = update();
morecat_lab 0:6bf4ee8ee342 298 if(sync){
morecat_lab 0:6bf4ee8ee342 299 int t = timer.read_ms();
morecat_lab 0:6bf4ee8ee342 300 if((t - start) >= ms){
morecat_lab 0:6bf4ee8ee342 301 break;
morecat_lab 0:6bf4ee8ee342 302 }
morecat_lab 0:6bf4ee8ee342 303 }
morecat_lab 0:6bf4ee8ee342 304 } while(1);
morecat_lab 0:6bf4ee8ee342 305 }
morecat_lab 0:6bf4ee8ee342 306
morecat_lab 0:6bf4ee8ee342 307 void Sseg::updateOnce(void) {
morecat_lab 0:6bf4ee8ee342 308 uint8_t i;
morecat_lab 0:6bf4ee8ee342 309 _dig = _numOfDigs - 1;
morecat_lab 0:6bf4ee8ee342 310 turnOff();
morecat_lab 0:6bf4ee8ee342 311 for (i = 0 ; i < _numOfDigs ; i++) {
morecat_lab 0:6bf4ee8ee342 312 updateSeg();
morecat_lab 0:6bf4ee8ee342 313 turnOn();
morecat_lab 0:6bf4ee8ee342 314 wait(0.001f); // wait 1ms
morecat_lab 0:6bf4ee8ee342 315 turnOff();
morecat_lab 0:6bf4ee8ee342 316 }
morecat_lab 0:6bf4ee8ee342 317 }
morecat_lab 0:6bf4ee8ee342 318
morecat_lab 0:6bf4ee8ee342 319 // EOF