Johannes Stratmann / eeprom

I2C EEProm library

Fork of eeprom by FRA221_2015

eeprom.cpp@2:c648c5e93d5e, 2015-10-26 (annotated)

Committer:
soulx
Date:
Mon Oct 26 16:43:07 2015 +0000
Revision:
2:c648c5e93d5e
Parent:
0:80245aff63ce
Child:
3:df82ebf4be54
edit ack chacking with wait_ms(5) *Application Note:AN1028

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bborredon 0:80245aff63ce 1 /***********************************************************
bborredon 0:80245aff63ce 2 Author: Bernard Borredon
bborredon 0:80245aff63ce 3 Date: 27 december 2011
bborredon 0:80245aff63ce 4 Version: 1.0
bborredon 0:80245aff63ce 5 ************************************************************/
soulx 2:c648c5e93d5e 6 #include "mbed.h"
bborredon 0:80245aff63ce 7 #include "eeprom.h"
bborredon 0:80245aff63ce 8
bborredon 0:80245aff63ce 9 #define BIT_SET(x,n) (x=x | (0x01<<n))
bborredon 0:80245aff63ce 10 #define BIT_TEST(x,n) (x & (0x01<<n))
bborredon 0:80245aff63ce 11 #define BIT_CLEAR(x,n) (x=x & ~(0x01<<n))
bborredon 0:80245aff63ce 12
bborredon 0:80245aff63ce 13 EEPROM::EEPROM(PinName sda, PinName scl, uint8_t address, TypeEeprom type) : _i2c(sda, scl)
bborredon 0:80245aff63ce 14 {
bborredon 0:80245aff63ce 15
bborredon 0:80245aff63ce 16 _errnum = EEPROM_NoError;
bborredon 0:80245aff63ce 17 _type = type;
bborredon 0:80245aff63ce 18
bborredon 0:80245aff63ce 19 // Check address range
bborredon 0:80245aff63ce 20 _address = address;
bborredon 0:80245aff63ce 21 switch(type) {
bborredon 0:80245aff63ce 22 case T24C01 :
bborredon 0:80245aff63ce 23 case T24C02 :
bborredon 0:80245aff63ce 24 if(address > 7) {
bborredon 0:80245aff63ce 25 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 26 }
bborredon 0:80245aff63ce 27 _address = _address << 1;
bborredon 0:80245aff63ce 28 _page_write = 8;
bborredon 0:80245aff63ce 29 _page_number = 1;
bborredon 0:80245aff63ce 30 break;
bborredon 0:80245aff63ce 31 case T24C04 :
bborredon 0:80245aff63ce 32 if(address > 7) {
bborredon 0:80245aff63ce 33 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 34 }
bborredon 0:80245aff63ce 35 _address = (_address & 0xFE) << 1;
bborredon 0:80245aff63ce 36 _page_write = 16;
bborredon 0:80245aff63ce 37 _page_number = 2;
bborredon 0:80245aff63ce 38 break;
bborredon 0:80245aff63ce 39 case T24C08 :
bborredon 0:80245aff63ce 40 if(address > 7) {
bborredon 0:80245aff63ce 41 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 42 }
bborredon 0:80245aff63ce 43 _address = (_address & 0xFC) << 1;
bborredon 0:80245aff63ce 44 _page_write = 16;
bborredon 0:80245aff63ce 45 _page_number = 4;
bborredon 0:80245aff63ce 46 break;
bborredon 0:80245aff63ce 47 case T24C16 :
bborredon 0:80245aff63ce 48 _address = 0;
bborredon 0:80245aff63ce 49 _page_write = 16;
bborredon 0:80245aff63ce 50 _page_number = 8;
bborredon 0:80245aff63ce 51 break;
bborredon 0:80245aff63ce 52 case T24C32 :
bborredon 0:80245aff63ce 53 case T24C64 :
soulx 2:c648c5e93d5e 54
bborredon 0:80245aff63ce 55 if(address > 7) {
bborredon 0:80245aff63ce 56 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 57 }
soulx 2:c648c5e93d5e 58
bborredon 0:80245aff63ce 59 _address = _address << 1;
soulx 2:c648c5e93d5e 60
soulx 2:c648c5e93d5e 61
bborredon 0:80245aff63ce 62 _page_write = 32;
bborredon 0:80245aff63ce 63 _page_number = 1;
bborredon 0:80245aff63ce 64 break;
bborredon 0:80245aff63ce 65 case T24C128 :
bborredon 0:80245aff63ce 66 case T24C256 :
bborredon 0:80245aff63ce 67 if(address > 3) {
bborredon 0:80245aff63ce 68 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 69 }
bborredon 0:80245aff63ce 70 _address = _address << 1;
bborredon 0:80245aff63ce 71 _page_write = 64;
bborredon 0:80245aff63ce 72 _page_number = 1;
bborredon 0:80245aff63ce 73 break;
bborredon 0:80245aff63ce 74 case T24C512 :
bborredon 0:80245aff63ce 75 if(address > 3) {
bborredon 0:80245aff63ce 76 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 77 }
bborredon 0:80245aff63ce 78 _address = _address << 1;
bborredon 0:80245aff63ce 79 _page_write = 128;
bborredon 0:80245aff63ce 80 _page_number = 1;
bborredon 0:80245aff63ce 81 break;
bborredon 0:80245aff63ce 82 case T24C1024 :
bborredon 0:80245aff63ce 83 if(address > 7) {
bborredon 0:80245aff63ce 84 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 85 }
bborredon 0:80245aff63ce 86 _address = (_address & 0xFE) << 1;
bborredon 0:80245aff63ce 87 _page_write = 128;
bborredon 0:80245aff63ce 88 _page_number = 2;
bborredon 0:80245aff63ce 89 break;
bborredon 0:80245aff63ce 90 case T24C1025 :
bborredon 0:80245aff63ce 91 if(address > 3) {
bborredon 0:80245aff63ce 92 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 93 }
bborredon 0:80245aff63ce 94 _address = _address << 1;
bborredon 0:80245aff63ce 95 _page_write = 128;
bborredon 0:80245aff63ce 96 _page_number = 2;
bborredon 0:80245aff63ce 97 break;
bborredon 0:80245aff63ce 98 }
bborredon 0:80245aff63ce 99
bborredon 0:80245aff63ce 100 // Size in bytes
bborredon 0:80245aff63ce 101 _size = _type;
bborredon 0:80245aff63ce 102 if(_type == T24C1025)
bborredon 0:80245aff63ce 103 _size = T24C1024;
bborredon 0:80245aff63ce 104
bborredon 0:80245aff63ce 105 // Set I2C frequency
soulx 2:c648c5e93d5e 106 _i2c.frequency(100000);
bborredon 0:80245aff63ce 107 }
bborredon 0:80245aff63ce 108
bborredon 0:80245aff63ce 109 void EEPROM::write(uint16_t address, int8_t data)
bborredon 0:80245aff63ce 110 {
bborredon 0:80245aff63ce 111 uint8_t page;
bborredon 0:80245aff63ce 112 uint8_t addr;
bborredon 0:80245aff63ce 113 uint8_t cmd[3];
bborredon 0:80245aff63ce 114 int len;
bborredon 0:80245aff63ce 115 int ack;
bborredon 0:80245aff63ce 116
bborredon 0:80245aff63ce 117 // Check error
bborredon 0:80245aff63ce 118 if(_errnum)
bborredon 0:80245aff63ce 119 return;
bborredon 0:80245aff63ce 120
bborredon 0:80245aff63ce 121 // Check address
bborredon 0:80245aff63ce 122 if(!checkAddress(address)) {
bborredon 0:80245aff63ce 123 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 124 return;
bborredon 0:80245aff63ce 125 }
bborredon 0:80245aff63ce 126
bborredon 0:80245aff63ce 127 // Compute page number
bborredon 0:80245aff63ce 128 page = 0;
bborredon 0:80245aff63ce 129 if(_type < T24C32)
bborredon 0:80245aff63ce 130 page = (uint8_t) (address / 256);
bborredon 0:80245aff63ce 131
bborredon 0:80245aff63ce 132 // Device address
bborredon 0:80245aff63ce 133 addr = EEPROM_Address | _address | (page << 1);
bborredon 0:80245aff63ce 134
bborredon 0:80245aff63ce 135 if(_type < T24C32) {
bborredon 0:80245aff63ce 136 len = 2;
bborredon 0:80245aff63ce 137
bborredon 0:80245aff63ce 138 // Word address
bborredon 0:80245aff63ce 139 cmd[0] = (uint8_t) (address - page * 256);
bborredon 0:80245aff63ce 140
bborredon 0:80245aff63ce 141 // Data
bborredon 0:80245aff63ce 142 cmd[1] = (uint8_t) data;
bborredon 0:80245aff63ce 143 }
bborredon 0:80245aff63ce 144 else {
bborredon 0:80245aff63ce 145 len = 3;
bborredon 0:80245aff63ce 146
bborredon 0:80245aff63ce 147 // First word address (MSB)
bborredon 0:80245aff63ce 148 cmd[0] = (uint8_t) (address >> 8);
bborredon 0:80245aff63ce 149
bborredon 0:80245aff63ce 150 // Second word address (LSB)
bborredon 0:80245aff63ce 151 cmd[1] = (uint8_t) address;
bborredon 0:80245aff63ce 152
bborredon 0:80245aff63ce 153 // Data
bborredon 0:80245aff63ce 154 cmd[2] = (uint8_t) data;
bborredon 0:80245aff63ce 155 }
bborredon 0:80245aff63ce 156
soulx 2:c648c5e93d5e 157 // printf("len %d address %02x cmd[0] %02x cmd[1] %02x cmd[2] %02x\n",len,addr,cmd[0],cmd[1],cmd[2]);
bborredon 0:80245aff63ce 158
bborredon 0:80245aff63ce 159 ack = _i2c.write((int)addr,(char *)cmd,len);
bborredon 0:80245aff63ce 160 if(ack != 0) {
bborredon 0:80245aff63ce 161 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 162 return;
bborredon 0:80245aff63ce 163 }
bborredon 0:80245aff63ce 164
bborredon 0:80245aff63ce 165 // Wait end of write
bborredon 0:80245aff63ce 166 ready();
bborredon 0:80245aff63ce 167
bborredon 0:80245aff63ce 168 }
bborredon 0:80245aff63ce 169
bborredon 0:80245aff63ce 170 void EEPROM::write(uint16_t address, int8_t data[], uint16_t length)
bborredon 0:80245aff63ce 171 {
bborredon 0:80245aff63ce 172 uint8_t page;
bborredon 0:80245aff63ce 173 uint8_t addr;
bborredon 0:80245aff63ce 174 uint8_t blocs,remain;
bborredon 0:80245aff63ce 175 uint8_t fpart,lpart;
bborredon 0:80245aff63ce 176 uint8_t i,j,ind;
bborredon 0:80245aff63ce 177 uint8_t cmd[129];
bborredon 0:80245aff63ce 178 int ack;
bborredon 0:80245aff63ce 179
bborredon 0:80245aff63ce 180 // Check error
bborredon 0:80245aff63ce 181 if(_errnum)
bborredon 0:80245aff63ce 182 return;
bborredon 0:80245aff63ce 183
bborredon 0:80245aff63ce 184 // Check address
bborredon 0:80245aff63ce 185 if(!checkAddress(address)) {
bborredon 0:80245aff63ce 186 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 187 return;
bborredon 0:80245aff63ce 188 }
bborredon 0:80245aff63ce 189
bborredon 0:80245aff63ce 190 // Check length
bborredon 0:80245aff63ce 191 if(!checkAddress(address + length - 1)) {
bborredon 0:80245aff63ce 192 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 193 return;
bborredon 0:80245aff63ce 194 }
bborredon 0:80245aff63ce 195
bborredon 0:80245aff63ce 196 // Compute blocs numbers
bborredon 0:80245aff63ce 197 blocs = length / _page_write;
bborredon 0:80245aff63ce 198
bborredon 0:80245aff63ce 199 // Compute remaining bytes
bborredon 0:80245aff63ce 200 remain = length - blocs * _page_write;
bborredon 0:80245aff63ce 201
bborredon 0:80245aff63ce 202 for(i = 0;i < blocs;i++) {
bborredon 0:80245aff63ce 203 // Compute page number
bborredon 0:80245aff63ce 204 page = 0;
bborredon 0:80245aff63ce 205 if(_type < T24C32)
bborredon 0:80245aff63ce 206 page = (uint8_t) (address / 256);
bborredon 0:80245aff63ce 207
bborredon 0:80245aff63ce 208 // Device address
bborredon 0:80245aff63ce 209 addr = EEPROM_Address | _address | (page << 1);
bborredon 0:80245aff63ce 210
bborredon 0:80245aff63ce 211 if(_type < T24C32) {
bborredon 0:80245aff63ce 212 // Word address
bborredon 0:80245aff63ce 213 cmd[0] = (uint8_t) (address - page * 256);
bborredon 0:80245aff63ce 214
bborredon 0:80245aff63ce 215 if((uint8_t) ((address + _page_write) / 256) == page) { // Data fit in the same page
bborredon 0:80245aff63ce 216 // Add data
bborredon 0:80245aff63ce 217 for(j = 0;j < _page_write;j++)
bborredon 0:80245aff63ce 218 cmd[j + 1] = (uint8_t) data[i * _page_write + j];
bborredon 0:80245aff63ce 219
bborredon 0:80245aff63ce 220 // Write data
bborredon 0:80245aff63ce 221 ack = _i2c.write((int)addr,(char *)cmd,_page_write + 1);
bborredon 0:80245aff63ce 222 if(ack != 0) {
bborredon 0:80245aff63ce 223 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 224 return;
bborredon 0:80245aff63ce 225 }
bborredon 0:80245aff63ce 226
bborredon 0:80245aff63ce 227 // Wait end of write
bborredon 0:80245aff63ce 228 ready();
bborredon 0:80245aff63ce 229
bborredon 0:80245aff63ce 230 // Increment address
bborredon 0:80245aff63ce 231 address += _page_write;
bborredon 0:80245aff63ce 232 }
bborredon 0:80245aff63ce 233 else { // Data on 2 pages. We must split the write
bborredon 0:80245aff63ce 234 // Number of bytes in current page
bborredon 0:80245aff63ce 235 fpart = (page + 1) * 256 - address;
bborredon 0:80245aff63ce 236
bborredon 0:80245aff63ce 237 // Add data for current page
bborredon 0:80245aff63ce 238 for(j = 0;j < fpart;j++)
bborredon 0:80245aff63ce 239 cmd[j + 1] = (uint8_t) data[i * _page_write + j];
bborredon 0:80245aff63ce 240
bborredon 0:80245aff63ce 241 // Write data for current page
bborredon 0:80245aff63ce 242 ack = _i2c.write((int)addr,(char *)cmd,fpart + 1);
bborredon 0:80245aff63ce 243 if(ack != 0) {
bborredon 0:80245aff63ce 244 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 245 return;
bborredon 0:80245aff63ce 246 }
bborredon 0:80245aff63ce 247
bborredon 0:80245aff63ce 248 // Wait end of write
bborredon 0:80245aff63ce 249 ready();
bborredon 0:80245aff63ce 250
bborredon 0:80245aff63ce 251 // Increment address
bborredon 0:80245aff63ce 252 address += fpart;
bborredon 0:80245aff63ce 253
bborredon 0:80245aff63ce 254 if(page < _page_number - 1) {
bborredon 0:80245aff63ce 255 // Increment page
bborredon 0:80245aff63ce 256 page++;
bborredon 0:80245aff63ce 257
bborredon 0:80245aff63ce 258 // Device address
bborredon 0:80245aff63ce 259 addr = EEPROM_Address | _address | (page << 1);
bborredon 0:80245aff63ce 260
bborredon 0:80245aff63ce 261 // Word address
bborredon 0:80245aff63ce 262 cmd[0] = (uint8_t) (address - page * 256);
bborredon 0:80245aff63ce 263
bborredon 0:80245aff63ce 264 // Data index
bborredon 0:80245aff63ce 265 ind = i * _page_write + fpart;
bborredon 0:80245aff63ce 266
bborredon 0:80245aff63ce 267 // Number of bytes in next page
bborredon 0:80245aff63ce 268 lpart = _page_write - fpart;
bborredon 0:80245aff63ce 269
bborredon 0:80245aff63ce 270 // Add data for next page
bborredon 0:80245aff63ce 271 for(j = 0;j < lpart;j++)
bborredon 0:80245aff63ce 272 cmd[j + 1] = (uint8_t) data[ind + j];
bborredon 0:80245aff63ce 273
bborredon 0:80245aff63ce 274 // Write data for next page
bborredon 0:80245aff63ce 275 ack = _i2c.write((int)addr,(char *)cmd,lpart + 1);
bborredon 0:80245aff63ce 276 if(ack != 0) {
bborredon 0:80245aff63ce 277 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 278 return;
bborredon 0:80245aff63ce 279 }
bborredon 0:80245aff63ce 280
bborredon 0:80245aff63ce 281 // Wait end of write
bborredon 0:80245aff63ce 282 ready();
bborredon 0:80245aff63ce 283
bborredon 0:80245aff63ce 284 // Increment address
bborredon 0:80245aff63ce 285 address += lpart;
bborredon 0:80245aff63ce 286 }
bborredon 0:80245aff63ce 287 }
bborredon 0:80245aff63ce 288 }
bborredon 0:80245aff63ce 289 else {
bborredon 0:80245aff63ce 290 // First word address (MSB)
bborredon 0:80245aff63ce 291 cmd[0] = (uint8_t) (address >> 8);
bborredon 0:80245aff63ce 292
bborredon 0:80245aff63ce 293 // Second word address (LSB)
bborredon 0:80245aff63ce 294 cmd[1] = (uint8_t) address;
bborredon 0:80245aff63ce 295
bborredon 0:80245aff63ce 296 // Add data
bborredon 0:80245aff63ce 297 for(j = 0;j < _page_write;j++)
bborredon 0:80245aff63ce 298 cmd[j + 2] = (uint8_t) data[i * _page_write + j];
bborredon 0:80245aff63ce 299
bborredon 0:80245aff63ce 300 // Write data
bborredon 0:80245aff63ce 301 ack = _i2c.write((int)addr,(char *)cmd,_page_write + 2);
bborredon 0:80245aff63ce 302 if(ack != 0) {
bborredon 0:80245aff63ce 303 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 304 return;
bborredon 0:80245aff63ce 305 }
bborredon 0:80245aff63ce 306
bborredon 0:80245aff63ce 307 // Wait end of write
bborredon 0:80245aff63ce 308 ready();
bborredon 0:80245aff63ce 309
bborredon 0:80245aff63ce 310 // Increment address
bborredon 0:80245aff63ce 311 address += _page_write;
bborredon 0:80245aff63ce 312 }
bborredon 0:80245aff63ce 313 }
bborredon 0:80245aff63ce 314
bborredon 0:80245aff63ce 315 // Compute page number
bborredon 0:80245aff63ce 316 page = 0;
bborredon 0:80245aff63ce 317 if(_type < T24C32)
bborredon 0:80245aff63ce 318 page = (uint8_t) (address / 256);
bborredon 0:80245aff63ce 319
bborredon 0:80245aff63ce 320 // Device address
bborredon 0:80245aff63ce 321 addr = EEPROM_Address | _address | (page << 1);
bborredon 0:80245aff63ce 322
bborredon 0:80245aff63ce 323 if(_type < T24C32) {
bborredon 0:80245aff63ce 324 // Word address
bborredon 0:80245aff63ce 325 cmd[0] = (uint8_t) (address - page * 256);
bborredon 0:80245aff63ce 326
bborredon 0:80245aff63ce 327 if((uint8_t) ((address + remain) / 256) == page) { // Data fit in the same page
bborredon 0:80245aff63ce 328 // Add data for the current page
bborredon 0:80245aff63ce 329 for(j = 0;j < remain;j++)
bborredon 0:80245aff63ce 330 cmd[j + 1] = (uint8_t) data[blocs * _page_write + j];
bborredon 0:80245aff63ce 331
bborredon 0:80245aff63ce 332 // Write data for the current page
bborredon 0:80245aff63ce 333 ack = _i2c.write((int)addr,(char *)cmd,remain + 1);
bborredon 0:80245aff63ce 334 if(ack != 0) {
bborredon 0:80245aff63ce 335 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 336 return;
bborredon 0:80245aff63ce 337 }
bborredon 0:80245aff63ce 338
bborredon 0:80245aff63ce 339 // Wait end of write
bborredon 0:80245aff63ce 340 ready();
bborredon 0:80245aff63ce 341 }
bborredon 0:80245aff63ce 342 else { // Data on 2 pages. We must split the write
bborredon 0:80245aff63ce 343 // Number of bytes in current page
bborredon 0:80245aff63ce 344 fpart = (page + 1) * 256 - address;
bborredon 0:80245aff63ce 345
bborredon 0:80245aff63ce 346 // Add data for current page
bborredon 0:80245aff63ce 347 for(j = 0;j < fpart;j++)
bborredon 0:80245aff63ce 348 cmd[j + 1] = (uint8_t) data[blocs * _page_write + j];
bborredon 0:80245aff63ce 349
bborredon 0:80245aff63ce 350 // Write data for current page
bborredon 0:80245aff63ce 351 ack = _i2c.write((int)addr,(char *)cmd,fpart + 1);
bborredon 0:80245aff63ce 352 if(ack != 0) {
bborredon 0:80245aff63ce 353 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 354 return;
bborredon 0:80245aff63ce 355 }
bborredon 0:80245aff63ce 356
bborredon 0:80245aff63ce 357 // Wait end of write
bborredon 0:80245aff63ce 358 ready();
bborredon 0:80245aff63ce 359
bborredon 0:80245aff63ce 360 // Increment address
bborredon 0:80245aff63ce 361 address += fpart;
bborredon 0:80245aff63ce 362
bborredon 0:80245aff63ce 363 if(page < _page_number - 1) {
bborredon 0:80245aff63ce 364 // Increment page
bborredon 0:80245aff63ce 365 page++;
bborredon 0:80245aff63ce 366
bborredon 0:80245aff63ce 367 // Device address
bborredon 0:80245aff63ce 368 addr = EEPROM_Address | _address | (page << 1);
bborredon 0:80245aff63ce 369
bborredon 0:80245aff63ce 370 // Word address
bborredon 0:80245aff63ce 371 cmd[0] = (uint8_t) (address - page * 256);
bborredon 0:80245aff63ce 372
bborredon 0:80245aff63ce 373 // Data index
bborredon 0:80245aff63ce 374 ind = blocs * _page_write + fpart;
bborredon 0:80245aff63ce 375
bborredon 0:80245aff63ce 376 // Number of bytes in next page
bborredon 0:80245aff63ce 377 lpart = remain - fpart;
bborredon 0:80245aff63ce 378
bborredon 0:80245aff63ce 379 // Add data for next page
bborredon 0:80245aff63ce 380 for(j = 0;j < lpart;j++)
bborredon 0:80245aff63ce 381 cmd[j + 1] = (uint8_t) data[ind + j];
bborredon 0:80245aff63ce 382
bborredon 0:80245aff63ce 383 // Write data for next page
bborredon 0:80245aff63ce 384 ack = _i2c.write((int)addr,(char *)cmd,lpart + 1);
bborredon 0:80245aff63ce 385 if(ack != 0) {
bborredon 0:80245aff63ce 386 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 387 return;
bborredon 0:80245aff63ce 388 }
bborredon 0:80245aff63ce 389
bborredon 0:80245aff63ce 390 // Wait end of write
bborredon 0:80245aff63ce 391 ready();
bborredon 0:80245aff63ce 392 }
bborredon 0:80245aff63ce 393 }
bborredon 0:80245aff63ce 394 }
bborredon 0:80245aff63ce 395 else {
bborredon 0:80245aff63ce 396 // Fist word address (MSB)
bborredon 0:80245aff63ce 397 cmd[0] = (uint8_t) (address >> 8);
bborredon 0:80245aff63ce 398
bborredon 0:80245aff63ce 399 // Second word address (LSB)
bborredon 0:80245aff63ce 400 cmd[1] = (uint8_t) address;
bborredon 0:80245aff63ce 401
bborredon 0:80245aff63ce 402 // Add data for the current page
bborredon 0:80245aff63ce 403 for(j = 0;j < remain;j++)
bborredon 0:80245aff63ce 404 cmd[j + 2] = (uint8_t) data[blocs * _page_write + j];
bborredon 0:80245aff63ce 405
bborredon 0:80245aff63ce 406 // Write data for the current page
bborredon 0:80245aff63ce 407 ack = _i2c.write((int)addr,(char *)cmd,remain + 2);
bborredon 0:80245aff63ce 408 if(ack != 0) {
bborredon 0:80245aff63ce 409 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 410 return;
bborredon 0:80245aff63ce 411 }
bborredon 0:80245aff63ce 412
bborredon 0:80245aff63ce 413 // Wait end of write
bborredon 0:80245aff63ce 414 ready();
bborredon 0:80245aff63ce 415 }
bborredon 0:80245aff63ce 416
bborredon 0:80245aff63ce 417 }
bborredon 0:80245aff63ce 418
bborredon 0:80245aff63ce 419 void EEPROM::write(uint16_t address, int16_t data)
bborredon 0:80245aff63ce 420 {
bborredon 0:80245aff63ce 421 int8_t cmd[2];
bborredon 0:80245aff63ce 422
bborredon 0:80245aff63ce 423 // Check error
bborredon 0:80245aff63ce 424 if(_errnum)
bborredon 0:80245aff63ce 425 return;
bborredon 0:80245aff63ce 426
bborredon 0:80245aff63ce 427 // Check address
bborredon 0:80245aff63ce 428 if(!checkAddress(address + 1)) {
bborredon 0:80245aff63ce 429 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 430 return;
bborredon 0:80245aff63ce 431 }
bborredon 0:80245aff63ce 432
bborredon 0:80245aff63ce 433 memcpy(cmd,&data,2);
bborredon 0:80245aff63ce 434
bborredon 0:80245aff63ce 435 write(address,cmd,2);
bborredon 0:80245aff63ce 436
bborredon 0:80245aff63ce 437 }
bborredon 0:80245aff63ce 438
bborredon 0:80245aff63ce 439 void EEPROM::write(uint16_t address, int32_t data)
bborredon 0:80245aff63ce 440 {
bborredon 0:80245aff63ce 441 int8_t cmd[4];
bborredon 0:80245aff63ce 442
bborredon 0:80245aff63ce 443 // Check error
bborredon 0:80245aff63ce 444 if(_errnum)
bborredon 0:80245aff63ce 445 return;
bborredon 0:80245aff63ce 446
bborredon 0:80245aff63ce 447 // Check address
bborredon 0:80245aff63ce 448 if(!checkAddress(address + 3)) {
bborredon 0:80245aff63ce 449 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 450 return;
bborredon 0:80245aff63ce 451 }
bborredon 0:80245aff63ce 452
bborredon 0:80245aff63ce 453 memcpy(cmd,&data,4);
bborredon 0:80245aff63ce 454
bborredon 0:80245aff63ce 455 write(address,cmd,4);
soulx 2:c648c5e93d5e 456
bborredon 0:80245aff63ce 457 }
bborredon 0:80245aff63ce 458
bborredon 0:80245aff63ce 459 void EEPROM::write(uint16_t address, float data)
bborredon 0:80245aff63ce 460 {
bborredon 0:80245aff63ce 461 int8_t cmd[4];
bborredon 0:80245aff63ce 462
bborredon 0:80245aff63ce 463 // Check error
bborredon 0:80245aff63ce 464 if(_errnum)
bborredon 0:80245aff63ce 465 return;
bborredon 0:80245aff63ce 466
bborredon 0:80245aff63ce 467 // Check address
bborredon 0:80245aff63ce 468 if(!checkAddress(address + 3)) {
bborredon 0:80245aff63ce 469 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 470 return;
bborredon 0:80245aff63ce 471 }
bborredon 0:80245aff63ce 472
bborredon 0:80245aff63ce 473 memcpy(cmd,&data,4);
bborredon 0:80245aff63ce 474
bborredon 0:80245aff63ce 475 write(address,cmd,4);
bborredon 0:80245aff63ce 476
bborredon 0:80245aff63ce 477 }
bborredon 0:80245aff63ce 478
bborredon 0:80245aff63ce 479 void EEPROM::write(uint16_t address, void *data, uint16_t size)
bborredon 0:80245aff63ce 480 {
bborredon 0:80245aff63ce 481 int8_t *cmd = NULL;
bborredon 0:80245aff63ce 482
bborredon 0:80245aff63ce 483 // Check error
bborredon 0:80245aff63ce 484 if(_errnum)
bborredon 0:80245aff63ce 485 return;
bborredon 0:80245aff63ce 486
bborredon 0:80245aff63ce 487 // Check address
bborredon 0:80245aff63ce 488 if(!checkAddress(address + size - 1)) {
bborredon 0:80245aff63ce 489 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 490 return;
bborredon 0:80245aff63ce 491 }
bborredon 0:80245aff63ce 492
bborredon 0:80245aff63ce 493 cmd = (int8_t *)malloc(size);
bborredon 0:80245aff63ce 494 if(cmd == NULL) {
bborredon 0:80245aff63ce 495 _errnum = EEPROM_MallocError;
bborredon 0:80245aff63ce 496 return;
bborredon 0:80245aff63ce 497 }
bborredon 0:80245aff63ce 498
bborredon 0:80245aff63ce 499 memcpy(cmd,data,size);
bborredon 0:80245aff63ce 500
bborredon 0:80245aff63ce 501 write(address,cmd,size);
bborredon 0:80245aff63ce 502
bborredon 0:80245aff63ce 503 free(cmd);
bborredon 0:80245aff63ce 504
bborredon 0:80245aff63ce 505 }
bborredon 0:80245aff63ce 506
bborredon 0:80245aff63ce 507 void EEPROM::read(uint16_t address, int8_t& data)
bborredon 0:80245aff63ce 508 {
bborredon 0:80245aff63ce 509 uint8_t page;
bborredon 0:80245aff63ce 510 uint8_t addr;
bborredon 0:80245aff63ce 511 uint8_t cmd[2];
bborredon 0:80245aff63ce 512 uint8_t len;
bborredon 0:80245aff63ce 513 int ack;
bborredon 0:80245aff63ce 514
bborredon 0:80245aff63ce 515 // Check error
bborredon 0:80245aff63ce 516 if(_errnum)
bborredon 0:80245aff63ce 517 return;
bborredon 0:80245aff63ce 518
bborredon 0:80245aff63ce 519 // Check address
bborredon 0:80245aff63ce 520 if(!checkAddress(address)) {
bborredon 0:80245aff63ce 521 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 522 return;
bborredon 0:80245aff63ce 523 }
bborredon 0:80245aff63ce 524
bborredon 0:80245aff63ce 525 // Compute page number
bborredon 0:80245aff63ce 526 page = 0;
bborredon 0:80245aff63ce 527 if(_type < T24C32)
bborredon 0:80245aff63ce 528 page = (uint8_t) (address / 256);
bborredon 0:80245aff63ce 529
bborredon 0:80245aff63ce 530 // Device address
bborredon 0:80245aff63ce 531 addr = EEPROM_Address | _address | (page << 1);
bborredon 0:80245aff63ce 532
bborredon 0:80245aff63ce 533 if(_type < T24C32) {
bborredon 0:80245aff63ce 534 len = 1;
bborredon 0:80245aff63ce 535
bborredon 0:80245aff63ce 536 // Word address
bborredon 0:80245aff63ce 537 cmd[0] = (uint8_t) (address - page * 256);
bborredon 0:80245aff63ce 538 }
bborredon 0:80245aff63ce 539 else {
bborredon 0:80245aff63ce 540 len = 2;
bborredon 0:80245aff63ce 541
bborredon 0:80245aff63ce 542 // First word address (MSB)
bborredon 0:80245aff63ce 543 cmd[0] = (uint8_t) (address >> 8);
bborredon 0:80245aff63ce 544
bborredon 0:80245aff63ce 545 // Second word address (LSB)
bborredon 0:80245aff63ce 546 cmd[1] = (uint8_t)address;
bborredon 0:80245aff63ce 547 }
bborredon 0:80245aff63ce 548
bborredon 0:80245aff63ce 549 // Write command
bborredon 0:80245aff63ce 550 ack = _i2c.write((int)addr,(char *)cmd,len,true);
bborredon 0:80245aff63ce 551 if(ack != 0) {
bborredon 0:80245aff63ce 552 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 553 return;
bborredon 0:80245aff63ce 554 }
bborredon 0:80245aff63ce 555
bborredon 0:80245aff63ce 556 // Read data
bborredon 0:80245aff63ce 557 ack = _i2c.read((int)addr,(char *)&data,sizeof(data));
bborredon 0:80245aff63ce 558 if(ack != 0) {
bborredon 0:80245aff63ce 559 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 560 return;
bborredon 0:80245aff63ce 561 }
bborredon 0:80245aff63ce 562
bborredon 0:80245aff63ce 563 }
bborredon 0:80245aff63ce 564
bborredon 0:80245aff63ce 565 void EEPROM::read(uint16_t address, int8_t *data, uint16_t size)
bborredon 0:80245aff63ce 566 {
bborredon 0:80245aff63ce 567 uint8_t page;
bborredon 0:80245aff63ce 568 uint8_t addr;
bborredon 0:80245aff63ce 569 uint8_t cmd[2];
bborredon 0:80245aff63ce 570 uint8_t len;
bborredon 0:80245aff63ce 571 int ack;
bborredon 0:80245aff63ce 572
bborredon 0:80245aff63ce 573 // Check error
bborredon 0:80245aff63ce 574 if(_errnum)
bborredon 0:80245aff63ce 575 return;
bborredon 0:80245aff63ce 576
bborredon 0:80245aff63ce 577 // Check address
bborredon 0:80245aff63ce 578 if(!checkAddress(address)) {
bborredon 0:80245aff63ce 579 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 580 return;
bborredon 0:80245aff63ce 581 }
bborredon 0:80245aff63ce 582
bborredon 0:80245aff63ce 583 // Check size
bborredon 0:80245aff63ce 584 if(!checkAddress(address + size - 1)) {
bborredon 0:80245aff63ce 585 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 586 return;
bborredon 0:80245aff63ce 587 }
bborredon 0:80245aff63ce 588
bborredon 0:80245aff63ce 589 // Compute page number
bborredon 0:80245aff63ce 590 page = 0;
bborredon 0:80245aff63ce 591 if(_type < T24C32)
bborredon 0:80245aff63ce 592 page = (uint8_t) (address / 256);
bborredon 0:80245aff63ce 593
bborredon 0:80245aff63ce 594 // Device address
bborredon 0:80245aff63ce 595 addr = EEPROM_Address | _address | (page << 1);
bborredon 0:80245aff63ce 596
bborredon 0:80245aff63ce 597 if(_type < T24C32) {
bborredon 0:80245aff63ce 598 len = 1;
bborredon 0:80245aff63ce 599
bborredon 0:80245aff63ce 600 // Word address
bborredon 0:80245aff63ce 601 cmd[0] = (uint8_t) (address - page * 256);
bborredon 0:80245aff63ce 602 }
bborredon 0:80245aff63ce 603 else {
bborredon 0:80245aff63ce 604 len = 2;
bborredon 0:80245aff63ce 605
bborredon 0:80245aff63ce 606 // First word address (MSB)
bborredon 0:80245aff63ce 607 cmd[0] = (uint8_t) (address >> 8);
bborredon 0:80245aff63ce 608
bborredon 0:80245aff63ce 609 // Second word address (LSB)
bborredon 0:80245aff63ce 610 cmd[1] = (uint8_t) address;
bborredon 0:80245aff63ce 611 }
bborredon 0:80245aff63ce 612
bborredon 0:80245aff63ce 613 // Write command
bborredon 0:80245aff63ce 614 ack = _i2c.write((int)addr,(char *)cmd,len,true);
bborredon 0:80245aff63ce 615 if(ack != 0) {
bborredon 0:80245aff63ce 616 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 617 return;
bborredon 0:80245aff63ce 618 }
bborredon 0:80245aff63ce 619
bborredon 0:80245aff63ce 620 // Sequential read
bborredon 0:80245aff63ce 621 ack = _i2c.read((int)addr,(char *)data,size);
bborredon 0:80245aff63ce 622 if(ack != 0) {
bborredon 0:80245aff63ce 623 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 624 return;
bborredon 0:80245aff63ce 625 }
bborredon 0:80245aff63ce 626
bborredon 0:80245aff63ce 627 }
bborredon 0:80245aff63ce 628
bborredon 0:80245aff63ce 629 void EEPROM::read(int8_t& data)
bborredon 0:80245aff63ce 630 {
bborredon 0:80245aff63ce 631 uint8_t addr;
bborredon 0:80245aff63ce 632 int ack;
bborredon 0:80245aff63ce 633
bborredon 0:80245aff63ce 634 // Check error
bborredon 0:80245aff63ce 635 if(_errnum)
bborredon 0:80245aff63ce 636 return;
bborredon 0:80245aff63ce 637
bborredon 0:80245aff63ce 638 // Device address
bborredon 0:80245aff63ce 639 addr = EEPROM_Address | _address;
bborredon 0:80245aff63ce 640
bborredon 0:80245aff63ce 641 // Read data
bborredon 0:80245aff63ce 642 ack = _i2c.read((int)addr,(char *)&data,sizeof(data));
bborredon 0:80245aff63ce 643 if(ack != 0) {
bborredon 0:80245aff63ce 644 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 645 return;
bborredon 0:80245aff63ce 646 }
bborredon 0:80245aff63ce 647
bborredon 0:80245aff63ce 648 }
bborredon 0:80245aff63ce 649
bborredon 0:80245aff63ce 650 void EEPROM::read(uint16_t address, int16_t& data)
bborredon 0:80245aff63ce 651 {
bborredon 0:80245aff63ce 652 int8_t cmd[2];
bborredon 0:80245aff63ce 653
bborredon 0:80245aff63ce 654 // Check error
bborredon 0:80245aff63ce 655 if(_errnum)
bborredon 0:80245aff63ce 656 return;
bborredon 0:80245aff63ce 657
bborredon 0:80245aff63ce 658 // Check address
bborredon 0:80245aff63ce 659 if(!checkAddress(address + 1)) {
bborredon 0:80245aff63ce 660 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 661 return;
bborredon 0:80245aff63ce 662 }
bborredon 0:80245aff63ce 663
bborredon 0:80245aff63ce 664 read(address,cmd,2);
bborredon 0:80245aff63ce 665
bborredon 0:80245aff63ce 666 memcpy(&data,cmd,2);
bborredon 0:80245aff63ce 667
bborredon 0:80245aff63ce 668 }
bborredon 0:80245aff63ce 669
bborredon 0:80245aff63ce 670 void EEPROM::read(uint16_t address, int32_t& data)
bborredon 0:80245aff63ce 671 {
bborredon 0:80245aff63ce 672 int8_t cmd[4];
bborredon 0:80245aff63ce 673
bborredon 0:80245aff63ce 674 // Check error
bborredon 0:80245aff63ce 675 if(_errnum)
bborredon 0:80245aff63ce 676 return;
bborredon 0:80245aff63ce 677
bborredon 0:80245aff63ce 678 // Check address
bborredon 0:80245aff63ce 679 if(!checkAddress(address + 3)) {
bborredon 0:80245aff63ce 680 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 681 return;
bborredon 0:80245aff63ce 682 }
bborredon 0:80245aff63ce 683
bborredon 0:80245aff63ce 684 read(address,cmd,4);
bborredon 0:80245aff63ce 685
bborredon 0:80245aff63ce 686 memcpy(&data,cmd,4);
bborredon 0:80245aff63ce 687
bborredon 0:80245aff63ce 688 }
bborredon 0:80245aff63ce 689
bborredon 0:80245aff63ce 690 void EEPROM::read(uint16_t address, float& data)
bborredon 0:80245aff63ce 691 {
bborredon 0:80245aff63ce 692 int8_t cmd[4];
bborredon 0:80245aff63ce 693
bborredon 0:80245aff63ce 694 // Check error
bborredon 0:80245aff63ce 695 if(_errnum)
bborredon 0:80245aff63ce 696 return;
bborredon 0:80245aff63ce 697
bborredon 0:80245aff63ce 698 // Check address
bborredon 0:80245aff63ce 699 if(!checkAddress(address + 3)) {
bborredon 0:80245aff63ce 700 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 701 return;
bborredon 0:80245aff63ce 702 }
bborredon 0:80245aff63ce 703
bborredon 0:80245aff63ce 704 read(address,cmd,4);
bborredon 0:80245aff63ce 705
bborredon 0:80245aff63ce 706 memcpy(&data,cmd,4);
bborredon 0:80245aff63ce 707
bborredon 0:80245aff63ce 708 }
bborredon 0:80245aff63ce 709
bborredon 0:80245aff63ce 710 void EEPROM::read(uint16_t address, void *data, uint16_t size)
bborredon 0:80245aff63ce 711 {
bborredon 0:80245aff63ce 712 int8_t *cmd = NULL;
bborredon 0:80245aff63ce 713
bborredon 0:80245aff63ce 714 // Check error
bborredon 0:80245aff63ce 715 if(_errnum)
bborredon 0:80245aff63ce 716 return;
bborredon 0:80245aff63ce 717
bborredon 0:80245aff63ce 718 // Check address
bborredon 0:80245aff63ce 719 if(!checkAddress(address + size - 1)) {
bborredon 0:80245aff63ce 720 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 721 return;
bborredon 0:80245aff63ce 722 }
bborredon 0:80245aff63ce 723
bborredon 0:80245aff63ce 724 cmd = (int8_t *)malloc(size);
bborredon 0:80245aff63ce 725 if(cmd == NULL) {
bborredon 0:80245aff63ce 726 _errnum = EEPROM_MallocError;
bborredon 0:80245aff63ce 727 return;
bborredon 0:80245aff63ce 728 }
bborredon 0:80245aff63ce 729
bborredon 0:80245aff63ce 730 read(address,cmd,size);
bborredon 0:80245aff63ce 731
bborredon 0:80245aff63ce 732 memcpy(data,cmd,size);
bborredon 0:80245aff63ce 733
bborredon 0:80245aff63ce 734 free(cmd);
bborredon 0:80245aff63ce 735
bborredon 0:80245aff63ce 736 }
bborredon 0:80245aff63ce 737
bborredon 0:80245aff63ce 738 void EEPROM::ready(void)
bborredon 0:80245aff63ce 739 {
bborredon 0:80245aff63ce 740 int ack;
bborredon 0:80245aff63ce 741 uint8_t addr;
bborredon 0:80245aff63ce 742 uint8_t cmd;
bborredon 0:80245aff63ce 743
bborredon 0:80245aff63ce 744 // Check error
bborredon 0:80245aff63ce 745 if(_errnum)
bborredon 0:80245aff63ce 746 return;
bborredon 0:80245aff63ce 747
bborredon 0:80245aff63ce 748 // Device address
bborredon 0:80245aff63ce 749 addr = EEPROM_Address | _address;
bborredon 0:80245aff63ce 750
bborredon 0:80245aff63ce 751 cmd = 0;
soulx 2:c648c5e93d5e 752 /*
bborredon 0:80245aff63ce 753 // Wait end of write
bborredon 0:80245aff63ce 754 do {
bborredon 0:80245aff63ce 755 ack = _i2c.write((int)addr,(char *)cmd,0);
bborredon 0:80245aff63ce 756 } while(ack != 0);
soulx 2:c648c5e93d5e 757 */
soulx 2:c648c5e93d5e 758 wait_ms(5);
bborredon 0:80245aff63ce 759 }
bborredon 0:80245aff63ce 760
bborredon 0:80245aff63ce 761 uint32_t EEPROM::getSize(void)
bborredon 0:80245aff63ce 762 {
bborredon 0:80245aff63ce 763 return(_size);
bborredon 0:80245aff63ce 764 }
bborredon 0:80245aff63ce 765
bborredon 0:80245aff63ce 766 uint8_t EEPROM::getError(void)
bborredon 0:80245aff63ce 767 {
bborredon 0:80245aff63ce 768 return(_errnum);
bborredon 0:80245aff63ce 769 }
bborredon 0:80245aff63ce 770
bborredon 0:80245aff63ce 771 bool EEPROM::checkAddress(uint16_t address)
bborredon 0:80245aff63ce 772 {
bborredon 0:80245aff63ce 773 bool ret = true;
bborredon 0:80245aff63ce 774
bborredon 0:80245aff63ce 775 switch(_type) {
bborredon 0:80245aff63ce 776 case T24C01 :
bborredon 0:80245aff63ce 777 if(address >= T24C01)
bborredon 0:80245aff63ce 778 ret = false;
bborredon 0:80245aff63ce 779 break;
bborredon 0:80245aff63ce 780 case T24C02 :
bborredon 0:80245aff63ce 781 if(address >= T24C02)
bborredon 0:80245aff63ce 782 ret = false;
bborredon 0:80245aff63ce 783 break;
bborredon 0:80245aff63ce 784 case T24C04 :
bborredon 0:80245aff63ce 785 if(address >= T24C04)
bborredon 0:80245aff63ce 786 ret = false;
bborredon 0:80245aff63ce 787 break;
bborredon 0:80245aff63ce 788 case T24C08 :
bborredon 0:80245aff63ce 789 if(address >= T24C08)
bborredon 0:80245aff63ce 790 ret = false;
bborredon 0:80245aff63ce 791 break;
bborredon 0:80245aff63ce 792 case T24C16 :
bborredon 0:80245aff63ce 793 if(address >= T24C16)
bborredon 0:80245aff63ce 794 ret = false;
bborredon 0:80245aff63ce 795 break;
bborredon 0:80245aff63ce 796 case T24C32 :
bborredon 0:80245aff63ce 797 if(address >= T24C32)
bborredon 0:80245aff63ce 798 ret = false;
bborredon 0:80245aff63ce 799 break;
bborredon 0:80245aff63ce 800 case T24C64 :
bborredon 0:80245aff63ce 801 if(address >= T24C64)
bborredon 0:80245aff63ce 802 ret = false;
bborredon 0:80245aff63ce 803 break;
bborredon 0:80245aff63ce 804 case T24C128 :
bborredon 0:80245aff63ce 805 if(address >= T24C128)
bborredon 0:80245aff63ce 806 ret = false;
bborredon 0:80245aff63ce 807 break;
bborredon 0:80245aff63ce 808 case T24C256 :
bborredon 0:80245aff63ce 809 if(address >= T24C256)
bborredon 0:80245aff63ce 810 ret = false;
bborredon 0:80245aff63ce 811 break;
bborredon 0:80245aff63ce 812 case T24C512 :
bborredon 0:80245aff63ce 813 if(address >= T24C512)
bborredon 0:80245aff63ce 814 ret = false;
bborredon 0:80245aff63ce 815 break;
bborredon 0:80245aff63ce 816 case T24C1024 :
bborredon 0:80245aff63ce 817 if(address >= T24C1024)
bborredon 0:80245aff63ce 818 ret = false;
bborredon 0:80245aff63ce 819 break;
bborredon 0:80245aff63ce 820 case T24C1025 :
bborredon 0:80245aff63ce 821 if(address >= T24C1025 - 1)
bborredon 0:80245aff63ce 822 ret = false;
bborredon 0:80245aff63ce 823 break;
bborredon 0:80245aff63ce 824 }
bborredon 0:80245aff63ce 825
bborredon 0:80245aff63ce 826 return(ret);
bborredon 0:80245aff63ce 827 }