Juan Ciafardini / eeprom

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eeprom.cpp@2:79ed7ff7c23d, 2015-11-02 (annotated)

Committer:
bborredon
Date:
Mon Nov 02 23:20:56 2015 +0000
Revision:
2:79ed7ff7c23d
Parent:
1:a262173cac81
Child:
3:925096a4c7f0
Publication version 1.1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bborredon 0:80245aff63ce 1 /***********************************************************
bborredon 0:80245aff63ce 2 Author: Bernard Borredon
bborredon 2:79ed7ff7c23d 3 Date : 12 decembre 2013
bborredon 2:79ed7ff7c23d 4 Version: 1.2
bborredon 2:79ed7ff7c23d 5 - Update api documentation
bborredon 2:79ed7ff7c23d 6
bborredon 1:a262173cac81 7 Date: 11 december 2013
bborredon 1:a262173cac81 8 Version: 1.1
bborredon 1:a262173cac81 9 - Change address parameter size form uint16_t to uint32_t (error for eeprom > 24C256).
bborredon 1:a262173cac81 10 - Change size parameter size from uint16_t to uint32_t (error for eeprom > 24C256).
bborredon 1:a262173cac81 11 - Correct a bug in function write(uint32_t address, int8_t data[], uint32_t length) :
bborredon 1:a262173cac81 12 last step must be done only if it remain datas to send.
bborredon 1:a262173cac81 13 - Add function getName.
bborredon 1:a262173cac81 14 - Add function clear.
bborredon 1:a262173cac81 15 - Initialize _name array.
bborredon 1:a262173cac81 16
bborredon 0:80245aff63ce 17 Date: 27 december 2011
bborredon 0:80245aff63ce 18 Version: 1.0
bborredon 1:a262173cac81 19
bborredon 0:80245aff63ce 20 ************************************************************/
bborredon 0:80245aff63ce 21 #include "eeprom.h"
bborredon 0:80245aff63ce 22
bborredon 0:80245aff63ce 23 #define BIT_SET(x,n) (x=x | (0x01<<n))
bborredon 0:80245aff63ce 24 #define BIT_TEST(x,n) (x & (0x01<<n))
bborredon 0:80245aff63ce 25 #define BIT_CLEAR(x,n) (x=x & ~(0x01<<n))
bborredon 0:80245aff63ce 26
bborredon 1:a262173cac81 27 const char * const EEPROM::_name[] = {"24C01","24C02","24C04","24C08","24C16","24C32",
bborredon 1:a262173cac81 28 "24C64","24C128","24C256","24C512","24C1024","24C1025"};
bborredon 1:a262173cac81 29
bborredon 0:80245aff63ce 30 EEPROM::EEPROM(PinName sda, PinName scl, uint8_t address, TypeEeprom type) : _i2c(sda, scl)
bborredon 0:80245aff63ce 31 {
bborredon 0:80245aff63ce 32
bborredon 0:80245aff63ce 33 _errnum = EEPROM_NoError;
bborredon 0:80245aff63ce 34 _type = type;
bborredon 0:80245aff63ce 35
bborredon 0:80245aff63ce 36 // Check address range
bborredon 0:80245aff63ce 37 _address = address;
bborredon 0:80245aff63ce 38 switch(type) {
bborredon 0:80245aff63ce 39 case T24C01 :
bborredon 0:80245aff63ce 40 case T24C02 :
bborredon 0:80245aff63ce 41 if(address > 7) {
bborredon 0:80245aff63ce 42 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 43 }
bborredon 0:80245aff63ce 44 _address = _address << 1;
bborredon 0:80245aff63ce 45 _page_write = 8;
bborredon 0:80245aff63ce 46 _page_number = 1;
bborredon 0:80245aff63ce 47 break;
bborredon 0:80245aff63ce 48 case T24C04 :
bborredon 0:80245aff63ce 49 if(address > 7) {
bborredon 0:80245aff63ce 50 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 51 }
bborredon 0:80245aff63ce 52 _address = (_address & 0xFE) << 1;
bborredon 0:80245aff63ce 53 _page_write = 16;
bborredon 0:80245aff63ce 54 _page_number = 2;
bborredon 0:80245aff63ce 55 break;
bborredon 0:80245aff63ce 56 case T24C08 :
bborredon 0:80245aff63ce 57 if(address > 7) {
bborredon 0:80245aff63ce 58 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 59 }
bborredon 0:80245aff63ce 60 _address = (_address & 0xFC) << 1;
bborredon 0:80245aff63ce 61 _page_write = 16;
bborredon 0:80245aff63ce 62 _page_number = 4;
bborredon 0:80245aff63ce 63 break;
bborredon 0:80245aff63ce 64 case T24C16 :
bborredon 0:80245aff63ce 65 _address = 0;
bborredon 0:80245aff63ce 66 _page_write = 16;
bborredon 0:80245aff63ce 67 _page_number = 8;
bborredon 0:80245aff63ce 68 break;
bborredon 0:80245aff63ce 69 case T24C32 :
bborredon 0:80245aff63ce 70 case T24C64 :
bborredon 0:80245aff63ce 71 if(address > 7) {
bborredon 0:80245aff63ce 72 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 73 }
bborredon 0:80245aff63ce 74 _address = _address << 1;
bborredon 0:80245aff63ce 75 _page_write = 32;
bborredon 0:80245aff63ce 76 _page_number = 1;
bborredon 0:80245aff63ce 77 break;
bborredon 0:80245aff63ce 78 case T24C128 :
bborredon 0:80245aff63ce 79 case T24C256 :
bborredon 0:80245aff63ce 80 if(address > 3) {
bborredon 0:80245aff63ce 81 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 82 }
bborredon 0:80245aff63ce 83 _address = _address << 1;
bborredon 0:80245aff63ce 84 _page_write = 64;
bborredon 0:80245aff63ce 85 _page_number = 1;
bborredon 0:80245aff63ce 86 break;
bborredon 0:80245aff63ce 87 case T24C512 :
bborredon 0:80245aff63ce 88 if(address > 3) {
bborredon 0:80245aff63ce 89 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 90 }
bborredon 0:80245aff63ce 91 _address = _address << 1;
bborredon 0:80245aff63ce 92 _page_write = 128;
bborredon 0:80245aff63ce 93 _page_number = 1;
bborredon 0:80245aff63ce 94 break;
bborredon 0:80245aff63ce 95 case T24C1024 :
bborredon 0:80245aff63ce 96 if(address > 7) {
bborredon 0:80245aff63ce 97 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 98 }
bborredon 0:80245aff63ce 99 _address = (_address & 0xFE) << 1;
bborredon 0:80245aff63ce 100 _page_write = 128;
bborredon 0:80245aff63ce 101 _page_number = 2;
bborredon 0:80245aff63ce 102 break;
bborredon 0:80245aff63ce 103 case T24C1025 :
bborredon 0:80245aff63ce 104 if(address > 3) {
bborredon 0:80245aff63ce 105 _errnum = EEPROM_BadAddress;
bborredon 0:80245aff63ce 106 }
bborredon 0:80245aff63ce 107 _address = _address << 1;
bborredon 0:80245aff63ce 108 _page_write = 128;
bborredon 0:80245aff63ce 109 _page_number = 2;
bborredon 0:80245aff63ce 110 break;
bborredon 0:80245aff63ce 111 }
bborredon 0:80245aff63ce 112
bborredon 0:80245aff63ce 113 // Size in bytes
bborredon 0:80245aff63ce 114 _size = _type;
bborredon 0:80245aff63ce 115 if(_type == T24C1025)
bborredon 0:80245aff63ce 116 _size = T24C1024;
bborredon 0:80245aff63ce 117
bborredon 0:80245aff63ce 118 // Set I2C frequency
bborredon 0:80245aff63ce 119 _i2c.frequency(400000);
bborredon 0:80245aff63ce 120 }
bborredon 0:80245aff63ce 121
bborredon 1:a262173cac81 122 void EEPROM::write(uint32_t address, int8_t data)
bborredon 0:80245aff63ce 123 {
bborredon 0:80245aff63ce 124 uint8_t page;
bborredon 0:80245aff63ce 125 uint8_t addr;
bborredon 0:80245aff63ce 126 uint8_t cmd[3];
bborredon 0:80245aff63ce 127 int len;
bborredon 0:80245aff63ce 128 int ack;
bborredon 0:80245aff63ce 129
bborredon 0:80245aff63ce 130 // Check error
bborredon 0:80245aff63ce 131 if(_errnum)
bborredon 0:80245aff63ce 132 return;
bborredon 0:80245aff63ce 133
bborredon 0:80245aff63ce 134 // Check address
bborredon 0:80245aff63ce 135 if(!checkAddress(address)) {
bborredon 0:80245aff63ce 136 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 137 return;
bborredon 0:80245aff63ce 138 }
bborredon 0:80245aff63ce 139
bborredon 0:80245aff63ce 140 // Compute page number
bborredon 0:80245aff63ce 141 page = 0;
bborredon 0:80245aff63ce 142 if(_type < T24C32)
bborredon 0:80245aff63ce 143 page = (uint8_t) (address / 256);
bborredon 0:80245aff63ce 144
bborredon 0:80245aff63ce 145 // Device address
bborredon 0:80245aff63ce 146 addr = EEPROM_Address | _address | (page << 1);
bborredon 0:80245aff63ce 147
bborredon 0:80245aff63ce 148 if(_type < T24C32) {
bborredon 0:80245aff63ce 149 len = 2;
bborredon 0:80245aff63ce 150
bborredon 0:80245aff63ce 151 // Word address
bborredon 0:80245aff63ce 152 cmd[0] = (uint8_t) (address - page * 256);
bborredon 0:80245aff63ce 153
bborredon 0:80245aff63ce 154 // Data
bborredon 0:80245aff63ce 155 cmd[1] = (uint8_t) data;
bborredon 0:80245aff63ce 156 }
bborredon 0:80245aff63ce 157 else {
bborredon 0:80245aff63ce 158 len = 3;
bborredon 0:80245aff63ce 159
bborredon 0:80245aff63ce 160 // First word address (MSB)
bborredon 0:80245aff63ce 161 cmd[0] = (uint8_t) (address >> 8);
bborredon 0:80245aff63ce 162
bborredon 0:80245aff63ce 163 // Second word address (LSB)
bborredon 0:80245aff63ce 164 cmd[1] = (uint8_t) address;
bborredon 0:80245aff63ce 165
bborredon 0:80245aff63ce 166 // Data
bborredon 0:80245aff63ce 167 cmd[2] = (uint8_t) data;
bborredon 0:80245aff63ce 168 }
bborredon 0:80245aff63ce 169
bborredon 0:80245aff63ce 170 ack = _i2c.write((int)addr,(char *)cmd,len);
bborredon 0:80245aff63ce 171 if(ack != 0) {
bborredon 0:80245aff63ce 172 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 173 return;
bborredon 0:80245aff63ce 174 }
bborredon 0:80245aff63ce 175
bborredon 0:80245aff63ce 176 // Wait end of write
bborredon 0:80245aff63ce 177 ready();
bborredon 0:80245aff63ce 178
bborredon 0:80245aff63ce 179 }
bborredon 0:80245aff63ce 180
bborredon 1:a262173cac81 181 void EEPROM::write(uint32_t address, int8_t data[], uint32_t length)
bborredon 0:80245aff63ce 182 {
bborredon 0:80245aff63ce 183 uint8_t page;
bborredon 1:a262173cac81 184 uint8_t addr = 0;
bborredon 0:80245aff63ce 185 uint8_t blocs,remain;
bborredon 0:80245aff63ce 186 uint8_t fpart,lpart;
bborredon 0:80245aff63ce 187 uint8_t i,j,ind;
bborredon 0:80245aff63ce 188 uint8_t cmd[129];
bborredon 0:80245aff63ce 189 int ack;
bborredon 0:80245aff63ce 190
bborredon 0:80245aff63ce 191 // Check error
bborredon 0:80245aff63ce 192 if(_errnum)
bborredon 0:80245aff63ce 193 return;
bborredon 0:80245aff63ce 194
bborredon 0:80245aff63ce 195 // Check address
bborredon 0:80245aff63ce 196 if(!checkAddress(address)) {
bborredon 0:80245aff63ce 197 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 198 return;
bborredon 0:80245aff63ce 199 }
bborredon 0:80245aff63ce 200
bborredon 0:80245aff63ce 201 // Check length
bborredon 0:80245aff63ce 202 if(!checkAddress(address + length - 1)) {
bborredon 0:80245aff63ce 203 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 204 return;
bborredon 0:80245aff63ce 205 }
bborredon 0:80245aff63ce 206
bborredon 0:80245aff63ce 207 // Compute blocs numbers
bborredon 0:80245aff63ce 208 blocs = length / _page_write;
bborredon 0:80245aff63ce 209
bborredon 0:80245aff63ce 210 // Compute remaining bytes
bborredon 0:80245aff63ce 211 remain = length - blocs * _page_write;
bborredon 0:80245aff63ce 212
bborredon 0:80245aff63ce 213 for(i = 0;i < blocs;i++) {
bborredon 0:80245aff63ce 214 // Compute page number
bborredon 0:80245aff63ce 215 page = 0;
bborredon 0:80245aff63ce 216 if(_type < T24C32)
bborredon 0:80245aff63ce 217 page = (uint8_t) (address / 256);
bborredon 0:80245aff63ce 218
bborredon 0:80245aff63ce 219 // Device address
bborredon 0:80245aff63ce 220 addr = EEPROM_Address | _address | (page << 1);
bborredon 0:80245aff63ce 221
bborredon 0:80245aff63ce 222 if(_type < T24C32) {
bborredon 0:80245aff63ce 223 // Word address
bborredon 0:80245aff63ce 224 cmd[0] = (uint8_t) (address - page * 256);
bborredon 0:80245aff63ce 225
bborredon 0:80245aff63ce 226 if((uint8_t) ((address + _page_write) / 256) == page) { // Data fit in the same page
bborredon 0:80245aff63ce 227 // Add data
bborredon 0:80245aff63ce 228 for(j = 0;j < _page_write;j++)
bborredon 0:80245aff63ce 229 cmd[j + 1] = (uint8_t) data[i * _page_write + j];
bborredon 0:80245aff63ce 230
bborredon 0:80245aff63ce 231 // Write data
bborredon 0:80245aff63ce 232 ack = _i2c.write((int)addr,(char *)cmd,_page_write + 1);
bborredon 0:80245aff63ce 233 if(ack != 0) {
bborredon 0:80245aff63ce 234 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 235 return;
bborredon 0:80245aff63ce 236 }
bborredon 0:80245aff63ce 237
bborredon 0:80245aff63ce 238 // Wait end of write
bborredon 0:80245aff63ce 239 ready();
bborredon 0:80245aff63ce 240
bborredon 0:80245aff63ce 241 // Increment address
bborredon 0:80245aff63ce 242 address += _page_write;
bborredon 0:80245aff63ce 243 }
bborredon 0:80245aff63ce 244 else { // Data on 2 pages. We must split the write
bborredon 0:80245aff63ce 245 // Number of bytes in current page
bborredon 0:80245aff63ce 246 fpart = (page + 1) * 256 - address;
bborredon 0:80245aff63ce 247
bborredon 0:80245aff63ce 248 // Add data for current page
bborredon 0:80245aff63ce 249 for(j = 0;j < fpart;j++)
bborredon 0:80245aff63ce 250 cmd[j + 1] = (uint8_t) data[i * _page_write + j];
bborredon 0:80245aff63ce 251
bborredon 0:80245aff63ce 252 // Write data for current page
bborredon 0:80245aff63ce 253 ack = _i2c.write((int)addr,(char *)cmd,fpart + 1);
bborredon 0:80245aff63ce 254 if(ack != 0) {
bborredon 0:80245aff63ce 255 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 256 return;
bborredon 0:80245aff63ce 257 }
bborredon 0:80245aff63ce 258
bborredon 0:80245aff63ce 259 // Wait end of write
bborredon 0:80245aff63ce 260 ready();
bborredon 0:80245aff63ce 261
bborredon 0:80245aff63ce 262 // Increment address
bborredon 0:80245aff63ce 263 address += fpart;
bborredon 0:80245aff63ce 264
bborredon 0:80245aff63ce 265 if(page < _page_number - 1) {
bborredon 0:80245aff63ce 266 // Increment page
bborredon 0:80245aff63ce 267 page++;
bborredon 0:80245aff63ce 268
bborredon 0:80245aff63ce 269 // Device address
bborredon 0:80245aff63ce 270 addr = EEPROM_Address | _address | (page << 1);
bborredon 0:80245aff63ce 271
bborredon 0:80245aff63ce 272 // Word address
bborredon 0:80245aff63ce 273 cmd[0] = (uint8_t) (address - page * 256);
bborredon 0:80245aff63ce 274
bborredon 0:80245aff63ce 275 // Data index
bborredon 0:80245aff63ce 276 ind = i * _page_write + fpart;
bborredon 0:80245aff63ce 277
bborredon 0:80245aff63ce 278 // Number of bytes in next page
bborredon 0:80245aff63ce 279 lpart = _page_write - fpart;
bborredon 0:80245aff63ce 280
bborredon 0:80245aff63ce 281 // Add data for next page
bborredon 0:80245aff63ce 282 for(j = 0;j < lpart;j++)
bborredon 0:80245aff63ce 283 cmd[j + 1] = (uint8_t) data[ind + j];
bborredon 0:80245aff63ce 284
bborredon 0:80245aff63ce 285 // Write data for next page
bborredon 0:80245aff63ce 286 ack = _i2c.write((int)addr,(char *)cmd,lpart + 1);
bborredon 0:80245aff63ce 287 if(ack != 0) {
bborredon 0:80245aff63ce 288 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 289 return;
bborredon 0:80245aff63ce 290 }
bborredon 0:80245aff63ce 291
bborredon 0:80245aff63ce 292 // Wait end of write
bborredon 0:80245aff63ce 293 ready();
bborredon 0:80245aff63ce 294
bborredon 0:80245aff63ce 295 // Increment address
bborredon 0:80245aff63ce 296 address += lpart;
bborredon 0:80245aff63ce 297 }
bborredon 0:80245aff63ce 298 }
bborredon 0:80245aff63ce 299 }
bborredon 0:80245aff63ce 300 else {
bborredon 0:80245aff63ce 301 // First word address (MSB)
bborredon 0:80245aff63ce 302 cmd[0] = (uint8_t) (address >> 8);
bborredon 0:80245aff63ce 303
bborredon 0:80245aff63ce 304 // Second word address (LSB)
bborredon 0:80245aff63ce 305 cmd[1] = (uint8_t) address;
bborredon 0:80245aff63ce 306
bborredon 0:80245aff63ce 307 // Add data
bborredon 0:80245aff63ce 308 for(j = 0;j < _page_write;j++)
bborredon 0:80245aff63ce 309 cmd[j + 2] = (uint8_t) data[i * _page_write + j];
bborredon 0:80245aff63ce 310
bborredon 0:80245aff63ce 311 // Write data
bborredon 0:80245aff63ce 312 ack = _i2c.write((int)addr,(char *)cmd,_page_write + 2);
bborredon 0:80245aff63ce 313 if(ack != 0) {
bborredon 0:80245aff63ce 314 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 315 return;
bborredon 0:80245aff63ce 316 }
bborredon 0:80245aff63ce 317
bborredon 0:80245aff63ce 318 // Wait end of write
bborredon 0:80245aff63ce 319 ready();
bborredon 0:80245aff63ce 320
bborredon 0:80245aff63ce 321 // Increment address
bborredon 0:80245aff63ce 322 address += _page_write;
bborredon 0:80245aff63ce 323 }
bborredon 0:80245aff63ce 324 }
bborredon 0:80245aff63ce 325
bborredon 1:a262173cac81 326 if(remain) {
bborredon 1:a262173cac81 327 // Compute page number
bborredon 1:a262173cac81 328 page = 0;
bborredon 1:a262173cac81 329 if(_type < T24C32)
bborredon 1:a262173cac81 330 page = (uint8_t) (address / 256);
bborredon 0:80245aff63ce 331
bborredon 1:a262173cac81 332 // Device address
bborredon 1:a262173cac81 333 addr = EEPROM_Address | _address | (page << 1);
bborredon 0:80245aff63ce 334
bborredon 1:a262173cac81 335 if(_type < T24C32) {
bborredon 1:a262173cac81 336 // Word address
bborredon 1:a262173cac81 337 cmd[0] = (uint8_t) (address - page * 256);
bborredon 0:80245aff63ce 338
bborredon 1:a262173cac81 339 if((uint8_t) ((address + remain) / 256) == page) { // Data fit in the same page
bborredon 1:a262173cac81 340 // Add data for the current page
bborredon 1:a262173cac81 341 for(j = 0;j < remain;j++)
bborredon 1:a262173cac81 342 cmd[j + 1] = (uint8_t) data[blocs * _page_write + j];
bborredon 0:80245aff63ce 343
bborredon 1:a262173cac81 344 // Write data for the current page
bborredon 1:a262173cac81 345 ack = _i2c.write((int)addr,(char *)cmd,remain + 1);
bborredon 0:80245aff63ce 346 if(ack != 0) {
bborredon 0:80245aff63ce 347 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 348 return;
bborredon 0:80245aff63ce 349 }
bborredon 1:a262173cac81 350
bborredon 0:80245aff63ce 351 // Wait end of write
bborredon 0:80245aff63ce 352 ready();
bborredon 0:80245aff63ce 353 }
bborredon 1:a262173cac81 354 else { // Data on 2 pages. We must split the write
bborredon 1:a262173cac81 355 // Number of bytes in current page
bborredon 1:a262173cac81 356 fpart = (page + 1) * 256 - address;
bborredon 1:a262173cac81 357
bborredon 1:a262173cac81 358 // Add data for current page
bborredon 1:a262173cac81 359 for(j = 0;j < fpart;j++)
bborredon 1:a262173cac81 360 cmd[j + 1] = (uint8_t) data[blocs * _page_write + j];
bborredon 1:a262173cac81 361
bborredon 1:a262173cac81 362 // Write data for current page
bborredon 1:a262173cac81 363 ack = _i2c.write((int)addr,(char *)cmd,fpart + 1);
bborredon 1:a262173cac81 364 if(ack != 0) {
bborredon 1:a262173cac81 365 _errnum = EEPROM_I2cError;
bborredon 1:a262173cac81 366 return;
bborredon 1:a262173cac81 367 }
bborredon 1:a262173cac81 368
bborredon 1:a262173cac81 369 // Wait end of write
bborredon 1:a262173cac81 370 ready();
bborredon 1:a262173cac81 371
bborredon 1:a262173cac81 372 // Increment address
bborredon 1:a262173cac81 373 address += fpart;
bborredon 1:a262173cac81 374
bborredon 1:a262173cac81 375 if(page < _page_number - 1) {
bborredon 1:a262173cac81 376 // Increment page
bborredon 1:a262173cac81 377 page++;
bborredon 1:a262173cac81 378
bborredon 1:a262173cac81 379 // Device address
bborredon 1:a262173cac81 380 addr = EEPROM_Address | _address | (page << 1);
bborredon 1:a262173cac81 381
bborredon 1:a262173cac81 382 // Word address
bborredon 1:a262173cac81 383 cmd[0] = (uint8_t) (address - page * 256);
bborredon 1:a262173cac81 384
bborredon 1:a262173cac81 385 // Data index
bborredon 1:a262173cac81 386 ind = blocs * _page_write + fpart;
bborredon 1:a262173cac81 387
bborredon 1:a262173cac81 388 // Number of bytes in next page
bborredon 1:a262173cac81 389 lpart = remain - fpart;
bborredon 1:a262173cac81 390
bborredon 1:a262173cac81 391 // Add data for next page
bborredon 1:a262173cac81 392 for(j = 0;j < lpart;j++)
bborredon 1:a262173cac81 393 cmd[j + 1] = (uint8_t) data[ind + j];
bborredon 1:a262173cac81 394
bborredon 1:a262173cac81 395 // Write data for next page
bborredon 1:a262173cac81 396 ack = _i2c.write((int)addr,(char *)cmd,lpart + 1);
bborredon 1:a262173cac81 397 if(ack != 0) {
bborredon 1:a262173cac81 398 _errnum = EEPROM_I2cError;
bborredon 1:a262173cac81 399 return;
bborredon 1:a262173cac81 400 }
bborredon 1:a262173cac81 401
bborredon 1:a262173cac81 402 // Wait end of write
bborredon 1:a262173cac81 403 ready();
bborredon 1:a262173cac81 404 }
bborredon 1:a262173cac81 405 }
bborredon 0:80245aff63ce 406 }
bborredon 0:80245aff63ce 407 }
bborredon 0:80245aff63ce 408 else {
bborredon 0:80245aff63ce 409 // Fist word address (MSB)
bborredon 0:80245aff63ce 410 cmd[0] = (uint8_t) (address >> 8);
bborredon 0:80245aff63ce 411
bborredon 0:80245aff63ce 412 // Second word address (LSB)
bborredon 0:80245aff63ce 413 cmd[1] = (uint8_t) address;
bborredon 0:80245aff63ce 414
bborredon 0:80245aff63ce 415 // Add data for the current page
bborredon 0:80245aff63ce 416 for(j = 0;j < remain;j++)
bborredon 0:80245aff63ce 417 cmd[j + 2] = (uint8_t) data[blocs * _page_write + j];
bborredon 0:80245aff63ce 418
bborredon 0:80245aff63ce 419 // Write data for the current page
bborredon 0:80245aff63ce 420 ack = _i2c.write((int)addr,(char *)cmd,remain + 2);
bborredon 0:80245aff63ce 421 if(ack != 0) {
bborredon 0:80245aff63ce 422 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 423 return;
bborredon 0:80245aff63ce 424 }
bborredon 0:80245aff63ce 425
bborredon 0:80245aff63ce 426 // Wait end of write
bborredon 0:80245aff63ce 427 ready();
bborredon 0:80245aff63ce 428 }
bborredon 0:80245aff63ce 429
bborredon 0:80245aff63ce 430 }
bborredon 0:80245aff63ce 431
bborredon 1:a262173cac81 432 void EEPROM::write(uint32_t address, int16_t data)
bborredon 0:80245aff63ce 433 {
bborredon 0:80245aff63ce 434 int8_t cmd[2];
bborredon 0:80245aff63ce 435
bborredon 0:80245aff63ce 436 // Check error
bborredon 0:80245aff63ce 437 if(_errnum)
bborredon 0:80245aff63ce 438 return;
bborredon 0:80245aff63ce 439
bborredon 0:80245aff63ce 440 // Check address
bborredon 0:80245aff63ce 441 if(!checkAddress(address + 1)) {
bborredon 0:80245aff63ce 442 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 443 return;
bborredon 0:80245aff63ce 444 }
bborredon 0:80245aff63ce 445
bborredon 0:80245aff63ce 446 memcpy(cmd,&data,2);
bborredon 0:80245aff63ce 447
bborredon 0:80245aff63ce 448 write(address,cmd,2);
bborredon 0:80245aff63ce 449
bborredon 0:80245aff63ce 450 }
bborredon 0:80245aff63ce 451
bborredon 1:a262173cac81 452 void EEPROM::write(uint32_t address, int32_t data)
bborredon 0:80245aff63ce 453 {
bborredon 0:80245aff63ce 454 int8_t cmd[4];
bborredon 0:80245aff63ce 455
bborredon 0:80245aff63ce 456 // Check error
bborredon 0:80245aff63ce 457 if(_errnum)
bborredon 0:80245aff63ce 458 return;
bborredon 0:80245aff63ce 459
bborredon 0:80245aff63ce 460 // Check address
bborredon 0:80245aff63ce 461 if(!checkAddress(address + 3)) {
bborredon 0:80245aff63ce 462 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 463 return;
bborredon 0:80245aff63ce 464 }
bborredon 0:80245aff63ce 465
bborredon 0:80245aff63ce 466 memcpy(cmd,&data,4);
bborredon 0:80245aff63ce 467
bborredon 0:80245aff63ce 468 write(address,cmd,4);
bborredon 0:80245aff63ce 469
bborredon 0:80245aff63ce 470 }
bborredon 0:80245aff63ce 471
bborredon 1:a262173cac81 472 void EEPROM::write(uint32_t address, float data)
bborredon 0:80245aff63ce 473 {
bborredon 0:80245aff63ce 474 int8_t cmd[4];
bborredon 0:80245aff63ce 475
bborredon 0:80245aff63ce 476 // Check error
bborredon 0:80245aff63ce 477 if(_errnum)
bborredon 0:80245aff63ce 478 return;
bborredon 0:80245aff63ce 479
bborredon 0:80245aff63ce 480 // Check address
bborredon 0:80245aff63ce 481 if(!checkAddress(address + 3)) {
bborredon 0:80245aff63ce 482 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 483 return;
bborredon 0:80245aff63ce 484 }
bborredon 0:80245aff63ce 485
bborredon 0:80245aff63ce 486 memcpy(cmd,&data,4);
bborredon 0:80245aff63ce 487
bborredon 0:80245aff63ce 488 write(address,cmd,4);
bborredon 0:80245aff63ce 489
bborredon 0:80245aff63ce 490 }
bborredon 0:80245aff63ce 491
bborredon 1:a262173cac81 492 void EEPROM::write(uint32_t address, void *data, uint32_t size)
bborredon 0:80245aff63ce 493 {
bborredon 0:80245aff63ce 494 int8_t *cmd = NULL;
bborredon 0:80245aff63ce 495
bborredon 0:80245aff63ce 496 // Check error
bborredon 0:80245aff63ce 497 if(_errnum)
bborredon 0:80245aff63ce 498 return;
bborredon 0:80245aff63ce 499
bborredon 0:80245aff63ce 500 // Check address
bborredon 0:80245aff63ce 501 if(!checkAddress(address + size - 1)) {
bborredon 0:80245aff63ce 502 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 503 return;
bborredon 0:80245aff63ce 504 }
bborredon 0:80245aff63ce 505
bborredon 0:80245aff63ce 506 cmd = (int8_t *)malloc(size);
bborredon 0:80245aff63ce 507 if(cmd == NULL) {
bborredon 0:80245aff63ce 508 _errnum = EEPROM_MallocError;
bborredon 0:80245aff63ce 509 return;
bborredon 0:80245aff63ce 510 }
bborredon 0:80245aff63ce 511
bborredon 1:a262173cac81 512 memcpy(cmd,(uint8_t *)data,size);
bborredon 0:80245aff63ce 513
bborredon 0:80245aff63ce 514 write(address,cmd,size);
bborredon 1:a262173cac81 515
bborredon 0:80245aff63ce 516 free(cmd);
bborredon 0:80245aff63ce 517
bborredon 0:80245aff63ce 518 }
bborredon 0:80245aff63ce 519
bborredon 1:a262173cac81 520 void EEPROM::read(uint32_t address, int8_t& data)
bborredon 0:80245aff63ce 521 {
bborredon 0:80245aff63ce 522 uint8_t page;
bborredon 0:80245aff63ce 523 uint8_t addr;
bborredon 0:80245aff63ce 524 uint8_t cmd[2];
bborredon 0:80245aff63ce 525 uint8_t len;
bborredon 0:80245aff63ce 526 int ack;
bborredon 0:80245aff63ce 527
bborredon 0:80245aff63ce 528 // Check error
bborredon 0:80245aff63ce 529 if(_errnum)
bborredon 0:80245aff63ce 530 return;
bborredon 0:80245aff63ce 531
bborredon 0:80245aff63ce 532 // Check address
bborredon 0:80245aff63ce 533 if(!checkAddress(address)) {
bborredon 0:80245aff63ce 534 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 535 return;
bborredon 0:80245aff63ce 536 }
bborredon 0:80245aff63ce 537
bborredon 0:80245aff63ce 538 // Compute page number
bborredon 0:80245aff63ce 539 page = 0;
bborredon 0:80245aff63ce 540 if(_type < T24C32)
bborredon 0:80245aff63ce 541 page = (uint8_t) (address / 256);
bborredon 0:80245aff63ce 542
bborredon 0:80245aff63ce 543 // Device address
bborredon 0:80245aff63ce 544 addr = EEPROM_Address | _address | (page << 1);
bborredon 0:80245aff63ce 545
bborredon 0:80245aff63ce 546 if(_type < T24C32) {
bborredon 0:80245aff63ce 547 len = 1;
bborredon 0:80245aff63ce 548
bborredon 0:80245aff63ce 549 // Word address
bborredon 0:80245aff63ce 550 cmd[0] = (uint8_t) (address - page * 256);
bborredon 0:80245aff63ce 551 }
bborredon 0:80245aff63ce 552 else {
bborredon 0:80245aff63ce 553 len = 2;
bborredon 0:80245aff63ce 554
bborredon 0:80245aff63ce 555 // First word address (MSB)
bborredon 0:80245aff63ce 556 cmd[0] = (uint8_t) (address >> 8);
bborredon 0:80245aff63ce 557
bborredon 0:80245aff63ce 558 // Second word address (LSB)
bborredon 0:80245aff63ce 559 cmd[1] = (uint8_t)address;
bborredon 0:80245aff63ce 560 }
bborredon 0:80245aff63ce 561
bborredon 0:80245aff63ce 562 // Write command
bborredon 0:80245aff63ce 563 ack = _i2c.write((int)addr,(char *)cmd,len,true);
bborredon 0:80245aff63ce 564 if(ack != 0) {
bborredon 0:80245aff63ce 565 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 566 return;
bborredon 0:80245aff63ce 567 }
bborredon 0:80245aff63ce 568
bborredon 0:80245aff63ce 569 // Read data
bborredon 0:80245aff63ce 570 ack = _i2c.read((int)addr,(char *)&data,sizeof(data));
bborredon 0:80245aff63ce 571 if(ack != 0) {
bborredon 0:80245aff63ce 572 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 573 return;
bborredon 0:80245aff63ce 574 }
bborredon 0:80245aff63ce 575
bborredon 0:80245aff63ce 576 }
bborredon 0:80245aff63ce 577
bborredon 1:a262173cac81 578 void EEPROM::read(uint32_t address, int8_t *data, uint32_t size)
bborredon 0:80245aff63ce 579 {
bborredon 0:80245aff63ce 580 uint8_t page;
bborredon 0:80245aff63ce 581 uint8_t addr;
bborredon 0:80245aff63ce 582 uint8_t cmd[2];
bborredon 0:80245aff63ce 583 uint8_t len;
bborredon 0:80245aff63ce 584 int ack;
bborredon 0:80245aff63ce 585
bborredon 0:80245aff63ce 586 // Check error
bborredon 0:80245aff63ce 587 if(_errnum)
bborredon 0:80245aff63ce 588 return;
bborredon 0:80245aff63ce 589
bborredon 0:80245aff63ce 590 // Check address
bborredon 0:80245aff63ce 591 if(!checkAddress(address)) {
bborredon 0:80245aff63ce 592 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 593 return;
bborredon 0:80245aff63ce 594 }
bborredon 0:80245aff63ce 595
bborredon 0:80245aff63ce 596 // Check size
bborredon 0:80245aff63ce 597 if(!checkAddress(address + size - 1)) {
bborredon 0:80245aff63ce 598 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 599 return;
bborredon 0:80245aff63ce 600 }
bborredon 0:80245aff63ce 601
bborredon 0:80245aff63ce 602 // Compute page number
bborredon 0:80245aff63ce 603 page = 0;
bborredon 0:80245aff63ce 604 if(_type < T24C32)
bborredon 0:80245aff63ce 605 page = (uint8_t) (address / 256);
bborredon 0:80245aff63ce 606
bborredon 0:80245aff63ce 607 // Device address
bborredon 0:80245aff63ce 608 addr = EEPROM_Address | _address | (page << 1);
bborredon 0:80245aff63ce 609
bborredon 0:80245aff63ce 610 if(_type < T24C32) {
bborredon 0:80245aff63ce 611 len = 1;
bborredon 0:80245aff63ce 612
bborredon 0:80245aff63ce 613 // Word address
bborredon 0:80245aff63ce 614 cmd[0] = (uint8_t) (address - page * 256);
bborredon 0:80245aff63ce 615 }
bborredon 0:80245aff63ce 616 else {
bborredon 0:80245aff63ce 617 len = 2;
bborredon 0:80245aff63ce 618
bborredon 0:80245aff63ce 619 // First word address (MSB)
bborredon 0:80245aff63ce 620 cmd[0] = (uint8_t) (address >> 8);
bborredon 0:80245aff63ce 621
bborredon 0:80245aff63ce 622 // Second word address (LSB)
bborredon 0:80245aff63ce 623 cmd[1] = (uint8_t) address;
bborredon 0:80245aff63ce 624 }
bborredon 0:80245aff63ce 625
bborredon 0:80245aff63ce 626 // Write command
bborredon 0:80245aff63ce 627 ack = _i2c.write((int)addr,(char *)cmd,len,true);
bborredon 0:80245aff63ce 628 if(ack != 0) {
bborredon 0:80245aff63ce 629 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 630 return;
bborredon 0:80245aff63ce 631 }
bborredon 0:80245aff63ce 632
bborredon 0:80245aff63ce 633 // Sequential read
bborredon 0:80245aff63ce 634 ack = _i2c.read((int)addr,(char *)data,size);
bborredon 0:80245aff63ce 635 if(ack != 0) {
bborredon 0:80245aff63ce 636 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 637 return;
bborredon 0:80245aff63ce 638 }
bborredon 0:80245aff63ce 639
bborredon 0:80245aff63ce 640 }
bborredon 0:80245aff63ce 641
bborredon 0:80245aff63ce 642 void EEPROM::read(int8_t& data)
bborredon 0:80245aff63ce 643 {
bborredon 0:80245aff63ce 644 uint8_t addr;
bborredon 0:80245aff63ce 645 int ack;
bborredon 0:80245aff63ce 646
bborredon 0:80245aff63ce 647 // Check error
bborredon 0:80245aff63ce 648 if(_errnum)
bborredon 0:80245aff63ce 649 return;
bborredon 0:80245aff63ce 650
bborredon 0:80245aff63ce 651 // Device address
bborredon 0:80245aff63ce 652 addr = EEPROM_Address | _address;
bborredon 0:80245aff63ce 653
bborredon 0:80245aff63ce 654 // Read data
bborredon 0:80245aff63ce 655 ack = _i2c.read((int)addr,(char *)&data,sizeof(data));
bborredon 0:80245aff63ce 656 if(ack != 0) {
bborredon 0:80245aff63ce 657 _errnum = EEPROM_I2cError;
bborredon 0:80245aff63ce 658 return;
bborredon 0:80245aff63ce 659 }
bborredon 0:80245aff63ce 660
bborredon 0:80245aff63ce 661 }
bborredon 0:80245aff63ce 662
bborredon 1:a262173cac81 663 void EEPROM::read(uint32_t address, int16_t& data)
bborredon 0:80245aff63ce 664 {
bborredon 0:80245aff63ce 665 int8_t cmd[2];
bborredon 0:80245aff63ce 666
bborredon 0:80245aff63ce 667 // Check error
bborredon 0:80245aff63ce 668 if(_errnum)
bborredon 0:80245aff63ce 669 return;
bborredon 0:80245aff63ce 670
bborredon 0:80245aff63ce 671 // Check address
bborredon 0:80245aff63ce 672 if(!checkAddress(address + 1)) {
bborredon 0:80245aff63ce 673 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 674 return;
bborredon 0:80245aff63ce 675 }
bborredon 0:80245aff63ce 676
bborredon 0:80245aff63ce 677 read(address,cmd,2);
bborredon 0:80245aff63ce 678
bborredon 0:80245aff63ce 679 memcpy(&data,cmd,2);
bborredon 0:80245aff63ce 680
bborredon 0:80245aff63ce 681 }
bborredon 0:80245aff63ce 682
bborredon 1:a262173cac81 683 void EEPROM::read(uint32_t address, int32_t& data)
bborredon 0:80245aff63ce 684 {
bborredon 0:80245aff63ce 685 int8_t cmd[4];
bborredon 0:80245aff63ce 686
bborredon 0:80245aff63ce 687 // Check error
bborredon 0:80245aff63ce 688 if(_errnum)
bborredon 0:80245aff63ce 689 return;
bborredon 0:80245aff63ce 690
bborredon 0:80245aff63ce 691 // Check address
bborredon 0:80245aff63ce 692 if(!checkAddress(address + 3)) {
bborredon 0:80245aff63ce 693 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 694 return;
bborredon 0:80245aff63ce 695 }
bborredon 0:80245aff63ce 696
bborredon 0:80245aff63ce 697 read(address,cmd,4);
bborredon 0:80245aff63ce 698
bborredon 0:80245aff63ce 699 memcpy(&data,cmd,4);
bborredon 0:80245aff63ce 700
bborredon 0:80245aff63ce 701 }
bborredon 0:80245aff63ce 702
bborredon 1:a262173cac81 703 void EEPROM::read(uint32_t address, float& data)
bborredon 0:80245aff63ce 704 {
bborredon 0:80245aff63ce 705 int8_t cmd[4];
bborredon 0:80245aff63ce 706
bborredon 0:80245aff63ce 707 // Check error
bborredon 0:80245aff63ce 708 if(_errnum)
bborredon 0:80245aff63ce 709 return;
bborredon 0:80245aff63ce 710
bborredon 0:80245aff63ce 711 // Check address
bborredon 0:80245aff63ce 712 if(!checkAddress(address + 3)) {
bborredon 0:80245aff63ce 713 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 714 return;
bborredon 0:80245aff63ce 715 }
bborredon 0:80245aff63ce 716
bborredon 0:80245aff63ce 717 read(address,cmd,4);
bborredon 0:80245aff63ce 718
bborredon 0:80245aff63ce 719 memcpy(&data,cmd,4);
bborredon 0:80245aff63ce 720
bborredon 0:80245aff63ce 721 }
bborredon 0:80245aff63ce 722
bborredon 1:a262173cac81 723 void EEPROM::read(uint32_t address, void *data, uint32_t size)
bborredon 0:80245aff63ce 724 {
bborredon 0:80245aff63ce 725 int8_t *cmd = NULL;
bborredon 1:a262173cac81 726
bborredon 0:80245aff63ce 727 // Check error
bborredon 0:80245aff63ce 728 if(_errnum)
bborredon 0:80245aff63ce 729 return;
bborredon 0:80245aff63ce 730
bborredon 0:80245aff63ce 731 // Check address
bborredon 0:80245aff63ce 732 if(!checkAddress(address + size - 1)) {
bborredon 0:80245aff63ce 733 _errnum = EEPROM_OutOfRange;
bborredon 0:80245aff63ce 734 return;
bborredon 0:80245aff63ce 735 }
bborredon 0:80245aff63ce 736
bborredon 0:80245aff63ce 737 cmd = (int8_t *)malloc(size);
bborredon 1:a262173cac81 738
bborredon 0:80245aff63ce 739 if(cmd == NULL) {
bborredon 0:80245aff63ce 740 _errnum = EEPROM_MallocError;
bborredon 0:80245aff63ce 741 return;
bborredon 0:80245aff63ce 742 }
bborredon 0:80245aff63ce 743
bborredon 1:a262173cac81 744 read(address,(int8_t *)cmd,size);
bborredon 0:80245aff63ce 745
bborredon 0:80245aff63ce 746 memcpy(data,cmd,size);
bborredon 0:80245aff63ce 747
bborredon 0:80245aff63ce 748 free(cmd);
bborredon 0:80245aff63ce 749
bborredon 0:80245aff63ce 750 }
bborredon 0:80245aff63ce 751
bborredon 1:a262173cac81 752 void EEPROM::clear(void)
bborredon 1:a262173cac81 753 {
bborredon 1:a262173cac81 754 int32_t data;
bborredon 1:a262173cac81 755 uint32_t i;
bborredon 1:a262173cac81 756
bborredon 1:a262173cac81 757 data = 0;
bborredon 1:a262173cac81 758
bborredon 1:a262173cac81 759 for(i = 0; i < _size / 4;i++) {
bborredon 1:a262173cac81 760 write((uint32_t)(i * 4),data);
bborredon 1:a262173cac81 761 }
bborredon 1:a262173cac81 762 }
bborredon 1:a262173cac81 763
bborredon 0:80245aff63ce 764 void EEPROM::ready(void)
bborredon 0:80245aff63ce 765 {
bborredon 0:80245aff63ce 766 int ack;
bborredon 0:80245aff63ce 767 uint8_t addr;
bborredon 1:a262173cac81 768 uint8_t cmd[2];
bborredon 0:80245aff63ce 769
bborredon 0:80245aff63ce 770 // Check error
bborredon 0:80245aff63ce 771 if(_errnum)
bborredon 0:80245aff63ce 772 return;
bborredon 0:80245aff63ce 773
bborredon 0:80245aff63ce 774 // Device address
bborredon 0:80245aff63ce 775 addr = EEPROM_Address | _address;
bborredon 0:80245aff63ce 776
bborredon 1:a262173cac81 777 cmd[0] = 0;
bborredon 0:80245aff63ce 778
bborredon 0:80245aff63ce 779 // Wait end of write
bborredon 0:80245aff63ce 780 do {
bborredon 0:80245aff63ce 781 ack = _i2c.write((int)addr,(char *)cmd,0);
bborredon 1:a262173cac81 782 //wait(0.5);
bborredon 0:80245aff63ce 783 } while(ack != 0);
bborredon 0:80245aff63ce 784
bborredon 0:80245aff63ce 785 }
bborredon 0:80245aff63ce 786
bborredon 0:80245aff63ce 787 uint32_t EEPROM::getSize(void)
bborredon 0:80245aff63ce 788 {
bborredon 0:80245aff63ce 789 return(_size);
bborredon 0:80245aff63ce 790 }
bborredon 0:80245aff63ce 791
bborredon 1:a262173cac81 792 const char* EEPROM::getName(void)
bborredon 1:a262173cac81 793 {
bborredon 1:a262173cac81 794 uint8_t i = 0;
bborredon 1:a262173cac81 795
bborredon 1:a262173cac81 796 switch(_type) {
bborredon 1:a262173cac81 797 case T24C01 :
bborredon 1:a262173cac81 798 i = 0;
bborredon 1:a262173cac81 799 break;
bborredon 1:a262173cac81 800 case T24C02 :
bborredon 1:a262173cac81 801 i = 1;
bborredon 1:a262173cac81 802 break;
bborredon 1:a262173cac81 803 case T24C04 :
bborredon 1:a262173cac81 804 i = 2;
bborredon 1:a262173cac81 805 break;
bborredon 1:a262173cac81 806 case T24C08 :
bborredon 1:a262173cac81 807 i = 3;
bborredon 1:a262173cac81 808 break;
bborredon 1:a262173cac81 809 case T24C16 :
bborredon 1:a262173cac81 810 i = 4;
bborredon 1:a262173cac81 811 break;
bborredon 1:a262173cac81 812 case T24C32 :
bborredon 1:a262173cac81 813 i = 5;
bborredon 1:a262173cac81 814 break;
bborredon 1:a262173cac81 815 case T24C64 :
bborredon 1:a262173cac81 816 i = 6;
bborredon 1:a262173cac81 817 break;
bborredon 1:a262173cac81 818 case T24C128 :
bborredon 1:a262173cac81 819 i = 7;
bborredon 1:a262173cac81 820 break;
bborredon 1:a262173cac81 821 case T24C256 :
bborredon 1:a262173cac81 822 i = 8;
bborredon 1:a262173cac81 823 break;
bborredon 1:a262173cac81 824 case T24C512 :
bborredon 1:a262173cac81 825 i = 9;
bborredon 1:a262173cac81 826 break;
bborredon 1:a262173cac81 827 case T24C1024 :
bborredon 1:a262173cac81 828 i = 10;
bborredon 1:a262173cac81 829 break;
bborredon 1:a262173cac81 830 case T24C1025 :
bborredon 1:a262173cac81 831 i = 11;
bborredon 1:a262173cac81 832 break;
bborredon 1:a262173cac81 833 }
bborredon 1:a262173cac81 834
bborredon 1:a262173cac81 835 return(_name[i]);
bborredon 1:a262173cac81 836 }
bborredon 1:a262173cac81 837
bborredon 0:80245aff63ce 838 uint8_t EEPROM::getError(void)
bborredon 0:80245aff63ce 839 {
bborredon 0:80245aff63ce 840 return(_errnum);
bborredon 0:80245aff63ce 841 }
bborredon 0:80245aff63ce 842
bborredon 1:a262173cac81 843 bool EEPROM::checkAddress(uint32_t address)
bborredon 0:80245aff63ce 844 {
bborredon 0:80245aff63ce 845 bool ret = true;
bborredon 0:80245aff63ce 846
bborredon 0:80245aff63ce 847 switch(_type) {
bborredon 0:80245aff63ce 848 case T24C01 :
bborredon 0:80245aff63ce 849 if(address >= T24C01)
bborredon 0:80245aff63ce 850 ret = false;
bborredon 0:80245aff63ce 851 break;
bborredon 0:80245aff63ce 852 case T24C02 :
bborredon 0:80245aff63ce 853 if(address >= T24C02)
bborredon 0:80245aff63ce 854 ret = false;
bborredon 0:80245aff63ce 855 break;
bborredon 0:80245aff63ce 856 case T24C04 :
bborredon 0:80245aff63ce 857 if(address >= T24C04)
bborredon 0:80245aff63ce 858 ret = false;
bborredon 0:80245aff63ce 859 break;
bborredon 0:80245aff63ce 860 case T24C08 :
bborredon 0:80245aff63ce 861 if(address >= T24C08)
bborredon 0:80245aff63ce 862 ret = false;
bborredon 0:80245aff63ce 863 break;
bborredon 0:80245aff63ce 864 case T24C16 :
bborredon 0:80245aff63ce 865 if(address >= T24C16)
bborredon 0:80245aff63ce 866 ret = false;
bborredon 0:80245aff63ce 867 break;
bborredon 0:80245aff63ce 868 case T24C32 :
bborredon 0:80245aff63ce 869 if(address >= T24C32)
bborredon 0:80245aff63ce 870 ret = false;
bborredon 0:80245aff63ce 871 break;
bborredon 0:80245aff63ce 872 case T24C64 :
bborredon 0:80245aff63ce 873 if(address >= T24C64)
bborredon 0:80245aff63ce 874 ret = false;
bborredon 0:80245aff63ce 875 break;
bborredon 0:80245aff63ce 876 case T24C128 :
bborredon 0:80245aff63ce 877 if(address >= T24C128)
bborredon 0:80245aff63ce 878 ret = false;
bborredon 0:80245aff63ce 879 break;
bborredon 0:80245aff63ce 880 case T24C256 :
bborredon 0:80245aff63ce 881 if(address >= T24C256)
bborredon 0:80245aff63ce 882 ret = false;
bborredon 0:80245aff63ce 883 break;
bborredon 0:80245aff63ce 884 case T24C512 :
bborredon 0:80245aff63ce 885 if(address >= T24C512)
bborredon 0:80245aff63ce 886 ret = false;
bborredon 0:80245aff63ce 887 break;
bborredon 0:80245aff63ce 888 case T24C1024 :
bborredon 0:80245aff63ce 889 if(address >= T24C1024)
bborredon 0:80245aff63ce 890 ret = false;
bborredon 0:80245aff63ce 891 break;
bborredon 0:80245aff63ce 892 case T24C1025 :
bborredon 0:80245aff63ce 893 if(address >= T24C1025 - 1)
bborredon 0:80245aff63ce 894 ret = false;
bborredon 0:80245aff63ce 895 break;
bborredon 0:80245aff63ce 896 }
bborredon 0:80245aff63ce 897
bborredon 0:80245aff63ce 898 return(ret);
bborredon 1:a262173cac81 899 }