I2C EEProm library
Fork of eeprom by
eeprom.cpp@4:0f09fbac7613, 2015-12-21 (annotated)
- Committer:
- JojoS
- Date:
- Mon Dec 21 17:31:49 2015 +0000
- Revision:
- 4:0f09fbac7613
- Parent:
- 3:df82ebf4be54
write(address, data, length) fiailed when writing full flash size. There was address command too much, fixed by checking remaining bytes == 0.
Who changed what in which revision?
User | Revision | Line number | New 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 | |
sweilz | 3:df82ebf4be54 | 13 | EEPROM::EEPROM(PinName sda, PinName scl, uint8_t address, TypeEeprom type) : _i2c(sda, scl) |
bborredon | 0:80245aff63ce | 14 | { |
sweilz | 3:df82ebf4be54 | 15 | |
sweilz | 3:df82ebf4be54 | 16 | _errnum = EEPROM_NoError; |
sweilz | 3:df82ebf4be54 | 17 | _type = type; |
sweilz | 3:df82ebf4be54 | 18 | |
sweilz | 3:df82ebf4be54 | 19 | // Check address range |
sweilz | 3:df82ebf4be54 | 20 | _address = address; |
sweilz | 3:df82ebf4be54 | 21 | switch(type) { |
sweilz | 3:df82ebf4be54 | 22 | case T24C01 : |
sweilz | 3:df82ebf4be54 | 23 | case T24C02 : |
sweilz | 3:df82ebf4be54 | 24 | if(address > 7) { |
sweilz | 3:df82ebf4be54 | 25 | _errnum = EEPROM_BadAddress; |
sweilz | 3:df82ebf4be54 | 26 | } |
sweilz | 3:df82ebf4be54 | 27 | _address = _address << 1; |
sweilz | 3:df82ebf4be54 | 28 | _page_write = 8; |
sweilz | 3:df82ebf4be54 | 29 | _page_number = 1; |
sweilz | 3:df82ebf4be54 | 30 | break; |
sweilz | 3:df82ebf4be54 | 31 | case T24C04 : |
sweilz | 3:df82ebf4be54 | 32 | if(address > 7) { |
sweilz | 3:df82ebf4be54 | 33 | _errnum = EEPROM_BadAddress; |
sweilz | 3:df82ebf4be54 | 34 | } |
sweilz | 3:df82ebf4be54 | 35 | _address = (_address & 0xFE) << 1; |
sweilz | 3:df82ebf4be54 | 36 | _page_write = 16; |
sweilz | 3:df82ebf4be54 | 37 | _page_number = 2; |
sweilz | 3:df82ebf4be54 | 38 | break; |
sweilz | 3:df82ebf4be54 | 39 | case T24C08 : |
sweilz | 3:df82ebf4be54 | 40 | if(address > 7) { |
sweilz | 3:df82ebf4be54 | 41 | _errnum = EEPROM_BadAddress; |
sweilz | 3:df82ebf4be54 | 42 | } |
sweilz | 3:df82ebf4be54 | 43 | _address = (_address & 0xFC) << 1; |
sweilz | 3:df82ebf4be54 | 44 | _page_write = 16; |
sweilz | 3:df82ebf4be54 | 45 | _page_number = 4; |
sweilz | 3:df82ebf4be54 | 46 | break; |
sweilz | 3:df82ebf4be54 | 47 | case T24C16 : |
sweilz | 3:df82ebf4be54 | 48 | _address = 0; |
sweilz | 3:df82ebf4be54 | 49 | _page_write = 16; |
sweilz | 3:df82ebf4be54 | 50 | _page_number = 8; |
sweilz | 3:df82ebf4be54 | 51 | break; |
sweilz | 3:df82ebf4be54 | 52 | case T24C32 : |
sweilz | 3:df82ebf4be54 | 53 | case T24C64 : |
sweilz | 3:df82ebf4be54 | 54 | if(address > 7) { |
sweilz | 3:df82ebf4be54 | 55 | _errnum = EEPROM_BadAddress; |
sweilz | 3:df82ebf4be54 | 56 | } |
sweilz | 3:df82ebf4be54 | 57 | _address = _address << 1; |
sweilz | 3:df82ebf4be54 | 58 | _page_write = 32; |
sweilz | 3:df82ebf4be54 | 59 | _page_number = 1; |
sweilz | 3:df82ebf4be54 | 60 | break; |
sweilz | 3:df82ebf4be54 | 61 | case T24C128 : |
sweilz | 3:df82ebf4be54 | 62 | case T24C256 : |
sweilz | 3:df82ebf4be54 | 63 | if(address > 3) { |
sweilz | 3:df82ebf4be54 | 64 | _errnum = EEPROM_BadAddress; |
sweilz | 3:df82ebf4be54 | 65 | } |
sweilz | 3:df82ebf4be54 | 66 | _address = _address << 1; |
sweilz | 3:df82ebf4be54 | 67 | _page_write = 64; |
sweilz | 3:df82ebf4be54 | 68 | _page_number = 1; |
sweilz | 3:df82ebf4be54 | 69 | break; |
sweilz | 3:df82ebf4be54 | 70 | case T24C512 : |
sweilz | 3:df82ebf4be54 | 71 | if(address > 3) { |
sweilz | 3:df82ebf4be54 | 72 | _errnum = EEPROM_BadAddress; |
sweilz | 3:df82ebf4be54 | 73 | } |
sweilz | 3:df82ebf4be54 | 74 | _address = _address << 1; |
sweilz | 3:df82ebf4be54 | 75 | _page_write = 128; |
sweilz | 3:df82ebf4be54 | 76 | _page_number = 1; |
sweilz | 3:df82ebf4be54 | 77 | break; |
sweilz | 3:df82ebf4be54 | 78 | case T24C1024 : |
sweilz | 3:df82ebf4be54 | 79 | if(address > 7) { |
sweilz | 3:df82ebf4be54 | 80 | _errnum = EEPROM_BadAddress; |
sweilz | 3:df82ebf4be54 | 81 | } |
sweilz | 3:df82ebf4be54 | 82 | _address = (_address & 0xFE) << 1; |
sweilz | 3:df82ebf4be54 | 83 | _page_write = 128; |
sweilz | 3:df82ebf4be54 | 84 | _page_number = 2; |
sweilz | 3:df82ebf4be54 | 85 | break; |
sweilz | 3:df82ebf4be54 | 86 | case T24C1025 : |
sweilz | 3:df82ebf4be54 | 87 | if(address > 3) { |
sweilz | 3:df82ebf4be54 | 88 | _errnum = EEPROM_BadAddress; |
sweilz | 3:df82ebf4be54 | 89 | } |
sweilz | 3:df82ebf4be54 | 90 | _address = _address << 1; |
sweilz | 3:df82ebf4be54 | 91 | _page_write = 128; |
sweilz | 3:df82ebf4be54 | 92 | _page_number = 2; |
sweilz | 3:df82ebf4be54 | 93 | break; |
sweilz | 3:df82ebf4be54 | 94 | } |
sweilz | 3:df82ebf4be54 | 95 | |
sweilz | 3:df82ebf4be54 | 96 | // Size in bytes |
sweilz | 3:df82ebf4be54 | 97 | _size = _type; |
sweilz | 3:df82ebf4be54 | 98 | if(_type == T24C1025) |
sweilz | 3:df82ebf4be54 | 99 | _size = T24C1024; |
sweilz | 3:df82ebf4be54 | 100 | |
sweilz | 3:df82ebf4be54 | 101 | // Set I2C frequency |
sweilz | 3:df82ebf4be54 | 102 | _i2c.frequency(100000); |
bborredon | 0:80245aff63ce | 103 | } |
bborredon | 0:80245aff63ce | 104 | |
bborredon | 0:80245aff63ce | 105 | void EEPROM::write(uint16_t address, int8_t data) |
bborredon | 0:80245aff63ce | 106 | { |
sweilz | 3:df82ebf4be54 | 107 | uint8_t page; |
sweilz | 3:df82ebf4be54 | 108 | uint8_t addr; |
sweilz | 3:df82ebf4be54 | 109 | uint8_t cmd[3]; |
sweilz | 3:df82ebf4be54 | 110 | int len; |
sweilz | 3:df82ebf4be54 | 111 | int ack; |
sweilz | 3:df82ebf4be54 | 112 | |
sweilz | 3:df82ebf4be54 | 113 | // Check error |
sweilz | 3:df82ebf4be54 | 114 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 115 | return; |
sweilz | 3:df82ebf4be54 | 116 | |
sweilz | 3:df82ebf4be54 | 117 | // Check address |
sweilz | 3:df82ebf4be54 | 118 | if(!checkAddress(address)) { |
sweilz | 3:df82ebf4be54 | 119 | _errnum = EEPROM_OutOfRange; |
sweilz | 3:df82ebf4be54 | 120 | return; |
sweilz | 3:df82ebf4be54 | 121 | } |
sweilz | 3:df82ebf4be54 | 122 | |
sweilz | 3:df82ebf4be54 | 123 | // Compute page number |
sweilz | 3:df82ebf4be54 | 124 | page = 0; |
sweilz | 3:df82ebf4be54 | 125 | if(_type < T24C32) |
sweilz | 3:df82ebf4be54 | 126 | page = (uint8_t) (address / 256); |
sweilz | 3:df82ebf4be54 | 127 | |
sweilz | 3:df82ebf4be54 | 128 | // Device address |
sweilz | 3:df82ebf4be54 | 129 | addr = EEPROM_Address | _address | (page << 1); |
sweilz | 3:df82ebf4be54 | 130 | |
sweilz | 3:df82ebf4be54 | 131 | if(_type < T24C32) { |
sweilz | 3:df82ebf4be54 | 132 | len = 2; |
sweilz | 3:df82ebf4be54 | 133 | |
sweilz | 3:df82ebf4be54 | 134 | // Word address |
sweilz | 3:df82ebf4be54 | 135 | cmd[0] = (uint8_t) (address - page * 256); |
sweilz | 3:df82ebf4be54 | 136 | |
sweilz | 3:df82ebf4be54 | 137 | // Data |
sweilz | 3:df82ebf4be54 | 138 | cmd[1] = (uint8_t) data; |
sweilz | 3:df82ebf4be54 | 139 | } else { |
sweilz | 3:df82ebf4be54 | 140 | len = 3; |
sweilz | 3:df82ebf4be54 | 141 | |
sweilz | 3:df82ebf4be54 | 142 | // First word address (MSB) |
sweilz | 3:df82ebf4be54 | 143 | cmd[0] = (uint8_t) (address >> 8); |
sweilz | 3:df82ebf4be54 | 144 | |
sweilz | 3:df82ebf4be54 | 145 | // Second word address (LSB) |
sweilz | 3:df82ebf4be54 | 146 | cmd[1] = (uint8_t) address; |
sweilz | 3:df82ebf4be54 | 147 | |
sweilz | 3:df82ebf4be54 | 148 | // Data |
sweilz | 3:df82ebf4be54 | 149 | cmd[2] = (uint8_t) data; |
sweilz | 3:df82ebf4be54 | 150 | } |
sweilz | 3:df82ebf4be54 | 151 | |
sweilz | 3:df82ebf4be54 | 152 | // printf("len %d address %02x cmd[0] %02x cmd[1] %02x cmd[2] %02x\n",len,addr,cmd[0],cmd[1],cmd[2]); |
sweilz | 3:df82ebf4be54 | 153 | |
sweilz | 3:df82ebf4be54 | 154 | ack = _i2c.write((int)addr,(char *)cmd,len); |
sweilz | 3:df82ebf4be54 | 155 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 156 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 157 | return; |
sweilz | 3:df82ebf4be54 | 158 | } |
sweilz | 3:df82ebf4be54 | 159 | |
sweilz | 3:df82ebf4be54 | 160 | // Wait end of write |
sweilz | 3:df82ebf4be54 | 161 | ready(); |
bborredon | 0:80245aff63ce | 162 | |
bborredon | 0:80245aff63ce | 163 | } |
bborredon | 0:80245aff63ce | 164 | |
bborredon | 0:80245aff63ce | 165 | void EEPROM::write(uint16_t address, int8_t data[], uint16_t length) |
bborredon | 0:80245aff63ce | 166 | { |
sweilz | 3:df82ebf4be54 | 167 | uint8_t page; |
sweilz | 3:df82ebf4be54 | 168 | uint8_t addr; |
sweilz | 3:df82ebf4be54 | 169 | uint8_t blocs,remain; |
sweilz | 3:df82ebf4be54 | 170 | uint8_t fpart,lpart; |
sweilz | 3:df82ebf4be54 | 171 | uint8_t i,j,ind; |
sweilz | 3:df82ebf4be54 | 172 | uint8_t cmd[129]; |
sweilz | 3:df82ebf4be54 | 173 | int ack; |
sweilz | 3:df82ebf4be54 | 174 | |
sweilz | 3:df82ebf4be54 | 175 | // Check error |
sweilz | 3:df82ebf4be54 | 176 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 177 | return; |
sweilz | 3:df82ebf4be54 | 178 | |
sweilz | 3:df82ebf4be54 | 179 | // Check address |
sweilz | 3:df82ebf4be54 | 180 | if(!checkAddress(address)) { |
sweilz | 3:df82ebf4be54 | 181 | _errnum = EEPROM_OutOfRange; |
bborredon | 0:80245aff63ce | 182 | return; |
sweilz | 3:df82ebf4be54 | 183 | } |
sweilz | 3:df82ebf4be54 | 184 | |
sweilz | 3:df82ebf4be54 | 185 | // Check length |
sweilz | 3:df82ebf4be54 | 186 | if(!checkAddress(address + length - 1)) { |
sweilz | 3:df82ebf4be54 | 187 | _errnum = EEPROM_OutOfRange; |
sweilz | 3:df82ebf4be54 | 188 | return; |
bborredon | 0:80245aff63ce | 189 | } |
sweilz | 3:df82ebf4be54 | 190 | |
sweilz | 3:df82ebf4be54 | 191 | // Compute blocs numbers |
sweilz | 3:df82ebf4be54 | 192 | blocs = length / _page_write; |
sweilz | 3:df82ebf4be54 | 193 | |
sweilz | 3:df82ebf4be54 | 194 | // Compute remaining bytes |
sweilz | 3:df82ebf4be54 | 195 | remain = length - blocs * _page_write; |
sweilz | 3:df82ebf4be54 | 196 | |
sweilz | 3:df82ebf4be54 | 197 | for(i = 0; i < blocs; i++) { |
sweilz | 3:df82ebf4be54 | 198 | // Compute page number |
sweilz | 3:df82ebf4be54 | 199 | page = 0; |
sweilz | 3:df82ebf4be54 | 200 | if(_type < T24C32) |
sweilz | 3:df82ebf4be54 | 201 | page = (uint8_t) (address / 256); |
sweilz | 3:df82ebf4be54 | 202 | |
bborredon | 0:80245aff63ce | 203 | // Device address |
bborredon | 0:80245aff63ce | 204 | addr = EEPROM_Address | _address | (page << 1); |
sweilz | 3:df82ebf4be54 | 205 | |
sweilz | 3:df82ebf4be54 | 206 | if(_type < T24C32) { |
sweilz | 3:df82ebf4be54 | 207 | // Word address |
sweilz | 3:df82ebf4be54 | 208 | cmd[0] = (uint8_t) (address - page * 256); |
sweilz | 3:df82ebf4be54 | 209 | |
sweilz | 3:df82ebf4be54 | 210 | if((uint8_t) ((address + _page_write) / 256) == page) { // Data fit in the same page |
sweilz | 3:df82ebf4be54 | 211 | // Add data |
sweilz | 3:df82ebf4be54 | 212 | for(j = 0; j < _page_write; j++) |
sweilz | 3:df82ebf4be54 | 213 | cmd[j + 1] = (uint8_t) data[i * _page_write + j]; |
sweilz | 3:df82ebf4be54 | 214 | |
sweilz | 3:df82ebf4be54 | 215 | // Write data |
sweilz | 3:df82ebf4be54 | 216 | ack = _i2c.write((int)addr,(char *)cmd,_page_write + 1); |
sweilz | 3:df82ebf4be54 | 217 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 218 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 219 | return; |
sweilz | 3:df82ebf4be54 | 220 | } |
sweilz | 3:df82ebf4be54 | 221 | |
sweilz | 3:df82ebf4be54 | 222 | // Wait end of write |
sweilz | 3:df82ebf4be54 | 223 | ready(); |
sweilz | 3:df82ebf4be54 | 224 | |
sweilz | 3:df82ebf4be54 | 225 | // Increment address |
sweilz | 3:df82ebf4be54 | 226 | address += _page_write; |
sweilz | 3:df82ebf4be54 | 227 | } else { // Data on 2 pages. We must split the write |
sweilz | 3:df82ebf4be54 | 228 | // Number of bytes in current page |
sweilz | 3:df82ebf4be54 | 229 | fpart = (page + 1) * 256 - address; |
sweilz | 3:df82ebf4be54 | 230 | |
sweilz | 3:df82ebf4be54 | 231 | // Add data for current page |
sweilz | 3:df82ebf4be54 | 232 | for(j = 0; j < fpart; j++) |
sweilz | 3:df82ebf4be54 | 233 | cmd[j + 1] = (uint8_t) data[i * _page_write + j]; |
sweilz | 3:df82ebf4be54 | 234 | |
sweilz | 3:df82ebf4be54 | 235 | // Write data for current page |
sweilz | 3:df82ebf4be54 | 236 | ack = _i2c.write((int)addr,(char *)cmd,fpart + 1); |
sweilz | 3:df82ebf4be54 | 237 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 238 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 239 | return; |
sweilz | 3:df82ebf4be54 | 240 | } |
sweilz | 3:df82ebf4be54 | 241 | |
sweilz | 3:df82ebf4be54 | 242 | // Wait end of write |
sweilz | 3:df82ebf4be54 | 243 | ready(); |
sweilz | 3:df82ebf4be54 | 244 | |
sweilz | 3:df82ebf4be54 | 245 | // Increment address |
sweilz | 3:df82ebf4be54 | 246 | address += fpart; |
sweilz | 3:df82ebf4be54 | 247 | |
sweilz | 3:df82ebf4be54 | 248 | if(page < _page_number - 1) { |
sweilz | 3:df82ebf4be54 | 249 | // Increment page |
sweilz | 3:df82ebf4be54 | 250 | page++; |
sweilz | 3:df82ebf4be54 | 251 | |
sweilz | 3:df82ebf4be54 | 252 | // Device address |
sweilz | 3:df82ebf4be54 | 253 | addr = EEPROM_Address | _address | (page << 1); |
sweilz | 3:df82ebf4be54 | 254 | |
sweilz | 3:df82ebf4be54 | 255 | // Word address |
sweilz | 3:df82ebf4be54 | 256 | cmd[0] = (uint8_t) (address - page * 256); |
sweilz | 3:df82ebf4be54 | 257 | |
sweilz | 3:df82ebf4be54 | 258 | // Data index |
sweilz | 3:df82ebf4be54 | 259 | ind = i * _page_write + fpart; |
sweilz | 3:df82ebf4be54 | 260 | |
sweilz | 3:df82ebf4be54 | 261 | // Number of bytes in next page |
sweilz | 3:df82ebf4be54 | 262 | lpart = _page_write - fpart; |
sweilz | 3:df82ebf4be54 | 263 | |
sweilz | 3:df82ebf4be54 | 264 | // Add data for next page |
sweilz | 3:df82ebf4be54 | 265 | for(j = 0; j < lpart; j++) |
sweilz | 3:df82ebf4be54 | 266 | cmd[j + 1] = (uint8_t) data[ind + j]; |
sweilz | 3:df82ebf4be54 | 267 | |
sweilz | 3:df82ebf4be54 | 268 | // Write data for next page |
sweilz | 3:df82ebf4be54 | 269 | ack = _i2c.write((int)addr,(char *)cmd,lpart + 1); |
sweilz | 3:df82ebf4be54 | 270 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 271 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 272 | return; |
sweilz | 3:df82ebf4be54 | 273 | } |
sweilz | 3:df82ebf4be54 | 274 | |
sweilz | 3:df82ebf4be54 | 275 | // Wait end of write |
sweilz | 3:df82ebf4be54 | 276 | ready(); |
sweilz | 3:df82ebf4be54 | 277 | |
sweilz | 3:df82ebf4be54 | 278 | // Increment address |
sweilz | 3:df82ebf4be54 | 279 | address += lpart; |
sweilz | 3:df82ebf4be54 | 280 | } |
sweilz | 3:df82ebf4be54 | 281 | } |
sweilz | 3:df82ebf4be54 | 282 | } else { |
sweilz | 3:df82ebf4be54 | 283 | // First word address (MSB) |
sweilz | 3:df82ebf4be54 | 284 | cmd[0] = (uint8_t) (address >> 8); |
sweilz | 3:df82ebf4be54 | 285 | |
sweilz | 3:df82ebf4be54 | 286 | // Second word address (LSB) |
sweilz | 3:df82ebf4be54 | 287 | cmd[1] = (uint8_t) address; |
sweilz | 3:df82ebf4be54 | 288 | |
sweilz | 3:df82ebf4be54 | 289 | // Add data |
sweilz | 3:df82ebf4be54 | 290 | for(j = 0; j < _page_write; j++) |
sweilz | 3:df82ebf4be54 | 291 | cmd[j + 2] = (uint8_t) data[i * _page_write + j]; |
sweilz | 3:df82ebf4be54 | 292 | |
sweilz | 3:df82ebf4be54 | 293 | // Write data |
sweilz | 3:df82ebf4be54 | 294 | ack = _i2c.write((int)addr,(char *)cmd,_page_write + 2); |
sweilz | 3:df82ebf4be54 | 295 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 296 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 297 | return; |
sweilz | 3:df82ebf4be54 | 298 | } |
sweilz | 3:df82ebf4be54 | 299 | |
sweilz | 3:df82ebf4be54 | 300 | // Wait end of write |
sweilz | 3:df82ebf4be54 | 301 | ready(); |
sweilz | 3:df82ebf4be54 | 302 | |
sweilz | 3:df82ebf4be54 | 303 | // Increment address |
sweilz | 3:df82ebf4be54 | 304 | address += _page_write; |
sweilz | 3:df82ebf4be54 | 305 | } |
sweilz | 3:df82ebf4be54 | 306 | } |
sweilz | 3:df82ebf4be54 | 307 | |
JojoS | 4:0f09fbac7613 | 308 | if (remain == 0) |
JojoS | 4:0f09fbac7613 | 309 | return; |
JojoS | 4:0f09fbac7613 | 310 | |
sweilz | 3:df82ebf4be54 | 311 | // Compute page number |
sweilz | 3:df82ebf4be54 | 312 | page = 0; |
sweilz | 3:df82ebf4be54 | 313 | if(_type < T24C32) |
sweilz | 3:df82ebf4be54 | 314 | page = (uint8_t) (address / 256); |
sweilz | 3:df82ebf4be54 | 315 | |
sweilz | 3:df82ebf4be54 | 316 | // Device address |
sweilz | 3:df82ebf4be54 | 317 | addr = EEPROM_Address | _address | (page << 1); |
sweilz | 3:df82ebf4be54 | 318 | |
sweilz | 3:df82ebf4be54 | 319 | if(_type < T24C32) { |
bborredon | 0:80245aff63ce | 320 | // Word address |
bborredon | 0:80245aff63ce | 321 | cmd[0] = (uint8_t) (address - page * 256); |
sweilz | 3:df82ebf4be54 | 322 | |
sweilz | 3:df82ebf4be54 | 323 | if((uint8_t) ((address + remain) / 256) == page) { // Data fit in the same page |
sweilz | 3:df82ebf4be54 | 324 | // Add data for the current page |
sweilz | 3:df82ebf4be54 | 325 | for(j = 0; j < remain; j++) |
sweilz | 3:df82ebf4be54 | 326 | cmd[j + 1] = (uint8_t) data[blocs * _page_write + j]; |
sweilz | 3:df82ebf4be54 | 327 | |
sweilz | 3:df82ebf4be54 | 328 | // Write data for the current page |
sweilz | 3:df82ebf4be54 | 329 | ack = _i2c.write((int)addr,(char *)cmd,remain + 1); |
sweilz | 3:df82ebf4be54 | 330 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 331 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 332 | return; |
sweilz | 3:df82ebf4be54 | 333 | } |
sweilz | 3:df82ebf4be54 | 334 | |
sweilz | 3:df82ebf4be54 | 335 | // Wait end of write |
sweilz | 3:df82ebf4be54 | 336 | ready(); |
sweilz | 3:df82ebf4be54 | 337 | } else { // Data on 2 pages. We must split the write |
sweilz | 3:df82ebf4be54 | 338 | // Number of bytes in current page |
sweilz | 3:df82ebf4be54 | 339 | fpart = (page + 1) * 256 - address; |
sweilz | 3:df82ebf4be54 | 340 | |
sweilz | 3:df82ebf4be54 | 341 | // Add data for current page |
sweilz | 3:df82ebf4be54 | 342 | for(j = 0; j < fpart; j++) |
sweilz | 3:df82ebf4be54 | 343 | cmd[j + 1] = (uint8_t) data[blocs * _page_write + j]; |
sweilz | 3:df82ebf4be54 | 344 | |
sweilz | 3:df82ebf4be54 | 345 | // Write data for current page |
sweilz | 3:df82ebf4be54 | 346 | ack = _i2c.write((int)addr,(char *)cmd,fpart + 1); |
sweilz | 3:df82ebf4be54 | 347 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 348 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 349 | return; |
sweilz | 3:df82ebf4be54 | 350 | } |
sweilz | 3:df82ebf4be54 | 351 | |
sweilz | 3:df82ebf4be54 | 352 | // Wait end of write |
sweilz | 3:df82ebf4be54 | 353 | ready(); |
sweilz | 3:df82ebf4be54 | 354 | |
sweilz | 3:df82ebf4be54 | 355 | // Increment address |
sweilz | 3:df82ebf4be54 | 356 | address += fpart; |
sweilz | 3:df82ebf4be54 | 357 | |
sweilz | 3:df82ebf4be54 | 358 | if(page < _page_number - 1) { |
sweilz | 3:df82ebf4be54 | 359 | // Increment page |
sweilz | 3:df82ebf4be54 | 360 | page++; |
sweilz | 3:df82ebf4be54 | 361 | |
sweilz | 3:df82ebf4be54 | 362 | // Device address |
sweilz | 3:df82ebf4be54 | 363 | addr = EEPROM_Address | _address | (page << 1); |
sweilz | 3:df82ebf4be54 | 364 | |
sweilz | 3:df82ebf4be54 | 365 | // Word address |
sweilz | 3:df82ebf4be54 | 366 | cmd[0] = (uint8_t) (address - page * 256); |
sweilz | 3:df82ebf4be54 | 367 | |
sweilz | 3:df82ebf4be54 | 368 | // Data index |
sweilz | 3:df82ebf4be54 | 369 | ind = blocs * _page_write + fpart; |
sweilz | 3:df82ebf4be54 | 370 | |
sweilz | 3:df82ebf4be54 | 371 | // Number of bytes in next page |
sweilz | 3:df82ebf4be54 | 372 | lpart = remain - fpart; |
sweilz | 3:df82ebf4be54 | 373 | |
sweilz | 3:df82ebf4be54 | 374 | // Add data for next page |
sweilz | 3:df82ebf4be54 | 375 | for(j = 0; j < lpart; j++) |
sweilz | 3:df82ebf4be54 | 376 | cmd[j + 1] = (uint8_t) data[ind + j]; |
sweilz | 3:df82ebf4be54 | 377 | |
sweilz | 3:df82ebf4be54 | 378 | // Write data for next page |
sweilz | 3:df82ebf4be54 | 379 | ack = _i2c.write((int)addr,(char *)cmd,lpart + 1); |
sweilz | 3:df82ebf4be54 | 380 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 381 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 382 | return; |
sweilz | 3:df82ebf4be54 | 383 | } |
sweilz | 3:df82ebf4be54 | 384 | |
sweilz | 3:df82ebf4be54 | 385 | // Wait end of write |
sweilz | 3:df82ebf4be54 | 386 | ready(); |
sweilz | 3:df82ebf4be54 | 387 | } |
sweilz | 3:df82ebf4be54 | 388 | } |
sweilz | 3:df82ebf4be54 | 389 | } else { |
sweilz | 3:df82ebf4be54 | 390 | // Fist word address (MSB) |
sweilz | 3:df82ebf4be54 | 391 | cmd[0] = (uint8_t) (address >> 8); |
sweilz | 3:df82ebf4be54 | 392 | |
sweilz | 3:df82ebf4be54 | 393 | // Second word address (LSB) |
sweilz | 3:df82ebf4be54 | 394 | cmd[1] = (uint8_t) address; |
sweilz | 3:df82ebf4be54 | 395 | |
sweilz | 3:df82ebf4be54 | 396 | // Add data for the current page |
sweilz | 3:df82ebf4be54 | 397 | for(j = 0; j < remain; j++) |
sweilz | 3:df82ebf4be54 | 398 | cmd[j + 2] = (uint8_t) data[blocs * _page_write + j]; |
sweilz | 3:df82ebf4be54 | 399 | |
sweilz | 3:df82ebf4be54 | 400 | // Write data for the current page |
sweilz | 3:df82ebf4be54 | 401 | ack = _i2c.write((int)addr,(char *)cmd,remain + 2); |
bborredon | 0:80245aff63ce | 402 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 403 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 404 | return; |
bborredon | 0:80245aff63ce | 405 | } |
sweilz | 3:df82ebf4be54 | 406 | |
bborredon | 0:80245aff63ce | 407 | // Wait end of write |
bborredon | 0:80245aff63ce | 408 | ready(); |
bborredon | 0:80245aff63ce | 409 | } |
bborredon | 0:80245aff63ce | 410 | |
bborredon | 0:80245aff63ce | 411 | } |
bborredon | 0:80245aff63ce | 412 | |
bborredon | 0:80245aff63ce | 413 | void EEPROM::write(uint16_t address, int16_t data) |
bborredon | 0:80245aff63ce | 414 | { |
sweilz | 3:df82ebf4be54 | 415 | int8_t cmd[2]; |
sweilz | 3:df82ebf4be54 | 416 | |
sweilz | 3:df82ebf4be54 | 417 | // Check error |
sweilz | 3:df82ebf4be54 | 418 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 419 | return; |
sweilz | 3:df82ebf4be54 | 420 | |
sweilz | 3:df82ebf4be54 | 421 | // Check address |
sweilz | 3:df82ebf4be54 | 422 | if(!checkAddress(address + 1)) { |
sweilz | 3:df82ebf4be54 | 423 | _errnum = EEPROM_OutOfRange; |
sweilz | 3:df82ebf4be54 | 424 | return; |
sweilz | 3:df82ebf4be54 | 425 | } |
sweilz | 3:df82ebf4be54 | 426 | |
sweilz | 3:df82ebf4be54 | 427 | memcpy(cmd,&data,2); |
sweilz | 3:df82ebf4be54 | 428 | |
sweilz | 3:df82ebf4be54 | 429 | write(address,cmd,2); |
sweilz | 3:df82ebf4be54 | 430 | |
bborredon | 0:80245aff63ce | 431 | } |
bborredon | 0:80245aff63ce | 432 | |
bborredon | 0:80245aff63ce | 433 | void EEPROM::write(uint16_t address, int32_t data) |
bborredon | 0:80245aff63ce | 434 | { |
sweilz | 3:df82ebf4be54 | 435 | int8_t cmd[4]; |
sweilz | 3:df82ebf4be54 | 436 | |
sweilz | 3:df82ebf4be54 | 437 | // Check error |
sweilz | 3:df82ebf4be54 | 438 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 439 | return; |
sweilz | 3:df82ebf4be54 | 440 | |
sweilz | 3:df82ebf4be54 | 441 | // Check address |
sweilz | 3:df82ebf4be54 | 442 | if(!checkAddress(address + 3)) { |
sweilz | 3:df82ebf4be54 | 443 | _errnum = EEPROM_OutOfRange; |
sweilz | 3:df82ebf4be54 | 444 | return; |
sweilz | 3:df82ebf4be54 | 445 | } |
sweilz | 3:df82ebf4be54 | 446 | |
sweilz | 3:df82ebf4be54 | 447 | memcpy(cmd,&data,4); |
sweilz | 3:df82ebf4be54 | 448 | |
sweilz | 3:df82ebf4be54 | 449 | write(address,cmd,4); |
soulx | 2:c648c5e93d5e | 450 | |
bborredon | 0:80245aff63ce | 451 | } |
bborredon | 0:80245aff63ce | 452 | |
bborredon | 0:80245aff63ce | 453 | void EEPROM::write(uint16_t address, float data) |
bborredon | 0:80245aff63ce | 454 | { |
sweilz | 3:df82ebf4be54 | 455 | int8_t cmd[4]; |
sweilz | 3:df82ebf4be54 | 456 | |
sweilz | 3:df82ebf4be54 | 457 | // Check error |
sweilz | 3:df82ebf4be54 | 458 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 459 | return; |
sweilz | 3:df82ebf4be54 | 460 | |
sweilz | 3:df82ebf4be54 | 461 | // Check address |
sweilz | 3:df82ebf4be54 | 462 | if(!checkAddress(address + 3)) { |
sweilz | 3:df82ebf4be54 | 463 | _errnum = EEPROM_OutOfRange; |
sweilz | 3:df82ebf4be54 | 464 | return; |
sweilz | 3:df82ebf4be54 | 465 | } |
sweilz | 3:df82ebf4be54 | 466 | |
sweilz | 3:df82ebf4be54 | 467 | memcpy(cmd,&data,4); |
sweilz | 3:df82ebf4be54 | 468 | |
sweilz | 3:df82ebf4be54 | 469 | write(address,cmd,4); |
sweilz | 3:df82ebf4be54 | 470 | |
bborredon | 0:80245aff63ce | 471 | } |
bborredon | 0:80245aff63ce | 472 | |
bborredon | 0:80245aff63ce | 473 | void EEPROM::write(uint16_t address, void *data, uint16_t size) |
bborredon | 0:80245aff63ce | 474 | { |
sweilz | 3:df82ebf4be54 | 475 | int8_t *cmd = NULL; |
sweilz | 3:df82ebf4be54 | 476 | |
sweilz | 3:df82ebf4be54 | 477 | // Check error |
sweilz | 3:df82ebf4be54 | 478 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 479 | return; |
sweilz | 3:df82ebf4be54 | 480 | |
sweilz | 3:df82ebf4be54 | 481 | // Check address |
sweilz | 3:df82ebf4be54 | 482 | if(!checkAddress(address + size - 1)) { |
sweilz | 3:df82ebf4be54 | 483 | _errnum = EEPROM_OutOfRange; |
sweilz | 3:df82ebf4be54 | 484 | return; |
sweilz | 3:df82ebf4be54 | 485 | } |
sweilz | 3:df82ebf4be54 | 486 | |
sweilz | 3:df82ebf4be54 | 487 | cmd = (int8_t *)malloc(size); |
sweilz | 3:df82ebf4be54 | 488 | if(cmd == NULL) { |
sweilz | 3:df82ebf4be54 | 489 | _errnum = EEPROM_MallocError; |
sweilz | 3:df82ebf4be54 | 490 | return; |
sweilz | 3:df82ebf4be54 | 491 | } |
sweilz | 3:df82ebf4be54 | 492 | |
sweilz | 3:df82ebf4be54 | 493 | memcpy(cmd,data,size); |
sweilz | 3:df82ebf4be54 | 494 | |
sweilz | 3:df82ebf4be54 | 495 | write(address,cmd,size); |
sweilz | 3:df82ebf4be54 | 496 | |
sweilz | 3:df82ebf4be54 | 497 | free(cmd); |
sweilz | 3:df82ebf4be54 | 498 | |
bborredon | 0:80245aff63ce | 499 | } |
bborredon | 0:80245aff63ce | 500 | |
bborredon | 0:80245aff63ce | 501 | void EEPROM::read(uint16_t address, int8_t& data) |
bborredon | 0:80245aff63ce | 502 | { |
sweilz | 3:df82ebf4be54 | 503 | uint8_t page; |
sweilz | 3:df82ebf4be54 | 504 | uint8_t addr; |
sweilz | 3:df82ebf4be54 | 505 | uint8_t cmd[2]; |
sweilz | 3:df82ebf4be54 | 506 | uint8_t len; |
sweilz | 3:df82ebf4be54 | 507 | int ack; |
sweilz | 3:df82ebf4be54 | 508 | |
sweilz | 3:df82ebf4be54 | 509 | // Check error |
sweilz | 3:df82ebf4be54 | 510 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 511 | return; |
sweilz | 3:df82ebf4be54 | 512 | |
sweilz | 3:df82ebf4be54 | 513 | // Check address |
sweilz | 3:df82ebf4be54 | 514 | if(!checkAddress(address)) { |
sweilz | 3:df82ebf4be54 | 515 | _errnum = EEPROM_OutOfRange; |
sweilz | 3:df82ebf4be54 | 516 | return; |
sweilz | 3:df82ebf4be54 | 517 | } |
sweilz | 3:df82ebf4be54 | 518 | |
sweilz | 3:df82ebf4be54 | 519 | // Compute page number |
sweilz | 3:df82ebf4be54 | 520 | page = 0; |
sweilz | 3:df82ebf4be54 | 521 | if(_type < T24C32) |
sweilz | 3:df82ebf4be54 | 522 | page = (uint8_t) (address / 256); |
sweilz | 3:df82ebf4be54 | 523 | |
sweilz | 3:df82ebf4be54 | 524 | // Device address |
sweilz | 3:df82ebf4be54 | 525 | addr = EEPROM_Address | _address | (page << 1); |
sweilz | 3:df82ebf4be54 | 526 | |
sweilz | 3:df82ebf4be54 | 527 | if(_type < T24C32) { |
sweilz | 3:df82ebf4be54 | 528 | len = 1; |
sweilz | 3:df82ebf4be54 | 529 | |
sweilz | 3:df82ebf4be54 | 530 | // Word address |
sweilz | 3:df82ebf4be54 | 531 | cmd[0] = (uint8_t) (address - page * 256); |
sweilz | 3:df82ebf4be54 | 532 | } else { |
sweilz | 3:df82ebf4be54 | 533 | len = 2; |
sweilz | 3:df82ebf4be54 | 534 | |
sweilz | 3:df82ebf4be54 | 535 | // First word address (MSB) |
sweilz | 3:df82ebf4be54 | 536 | cmd[0] = (uint8_t) (address >> 8); |
sweilz | 3:df82ebf4be54 | 537 | |
sweilz | 3:df82ebf4be54 | 538 | // Second word address (LSB) |
sweilz | 3:df82ebf4be54 | 539 | cmd[1] = (uint8_t)address; |
sweilz | 3:df82ebf4be54 | 540 | } |
sweilz | 3:df82ebf4be54 | 541 | |
sweilz | 3:df82ebf4be54 | 542 | // Write command |
sweilz | 3:df82ebf4be54 | 543 | ack = _i2c.write((int)addr,(char *)cmd,len,true); |
sweilz | 3:df82ebf4be54 | 544 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 545 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 546 | return; |
sweilz | 3:df82ebf4be54 | 547 | } |
sweilz | 3:df82ebf4be54 | 548 | |
sweilz | 3:df82ebf4be54 | 549 | // Read data |
sweilz | 3:df82ebf4be54 | 550 | ack = _i2c.read((int)addr,(char *)&data,sizeof(data)); |
sweilz | 3:df82ebf4be54 | 551 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 552 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 553 | return; |
sweilz | 3:df82ebf4be54 | 554 | } |
sweilz | 3:df82ebf4be54 | 555 | |
bborredon | 0:80245aff63ce | 556 | } |
bborredon | 0:80245aff63ce | 557 | |
bborredon | 0:80245aff63ce | 558 | void EEPROM::read(uint16_t address, int8_t *data, uint16_t size) |
bborredon | 0:80245aff63ce | 559 | { |
sweilz | 3:df82ebf4be54 | 560 | uint8_t page; |
sweilz | 3:df82ebf4be54 | 561 | uint8_t addr; |
sweilz | 3:df82ebf4be54 | 562 | uint8_t cmd[2]; |
sweilz | 3:df82ebf4be54 | 563 | uint8_t len; |
sweilz | 3:df82ebf4be54 | 564 | int ack; |
sweilz | 3:df82ebf4be54 | 565 | |
sweilz | 3:df82ebf4be54 | 566 | // Check error |
sweilz | 3:df82ebf4be54 | 567 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 568 | return; |
sweilz | 3:df82ebf4be54 | 569 | |
sweilz | 3:df82ebf4be54 | 570 | // Check address |
sweilz | 3:df82ebf4be54 | 571 | if(!checkAddress(address)) { |
sweilz | 3:df82ebf4be54 | 572 | _errnum = EEPROM_OutOfRange; |
sweilz | 3:df82ebf4be54 | 573 | return; |
sweilz | 3:df82ebf4be54 | 574 | } |
sweilz | 3:df82ebf4be54 | 575 | |
sweilz | 3:df82ebf4be54 | 576 | // Check size |
sweilz | 3:df82ebf4be54 | 577 | if(!checkAddress(address + size - 1)) { |
sweilz | 3:df82ebf4be54 | 578 | _errnum = EEPROM_OutOfRange; |
sweilz | 3:df82ebf4be54 | 579 | return; |
sweilz | 3:df82ebf4be54 | 580 | } |
sweilz | 3:df82ebf4be54 | 581 | |
sweilz | 3:df82ebf4be54 | 582 | // Compute page number |
sweilz | 3:df82ebf4be54 | 583 | page = 0; |
sweilz | 3:df82ebf4be54 | 584 | if(_type < T24C32) |
sweilz | 3:df82ebf4be54 | 585 | page = (uint8_t) (address / 256); |
sweilz | 3:df82ebf4be54 | 586 | |
sweilz | 3:df82ebf4be54 | 587 | // Device address |
sweilz | 3:df82ebf4be54 | 588 | addr = EEPROM_Address | _address | (page << 1); |
sweilz | 3:df82ebf4be54 | 589 | |
sweilz | 3:df82ebf4be54 | 590 | if(_type < T24C32) { |
sweilz | 3:df82ebf4be54 | 591 | len = 1; |
sweilz | 3:df82ebf4be54 | 592 | |
sweilz | 3:df82ebf4be54 | 593 | // Word address |
sweilz | 3:df82ebf4be54 | 594 | cmd[0] = (uint8_t) (address - page * 256); |
sweilz | 3:df82ebf4be54 | 595 | } else { |
sweilz | 3:df82ebf4be54 | 596 | len = 2; |
sweilz | 3:df82ebf4be54 | 597 | |
sweilz | 3:df82ebf4be54 | 598 | // First word address (MSB) |
sweilz | 3:df82ebf4be54 | 599 | cmd[0] = (uint8_t) (address >> 8); |
sweilz | 3:df82ebf4be54 | 600 | |
sweilz | 3:df82ebf4be54 | 601 | // Second word address (LSB) |
sweilz | 3:df82ebf4be54 | 602 | cmd[1] = (uint8_t) address; |
sweilz | 3:df82ebf4be54 | 603 | } |
sweilz | 3:df82ebf4be54 | 604 | |
sweilz | 3:df82ebf4be54 | 605 | // Write command |
sweilz | 3:df82ebf4be54 | 606 | ack = _i2c.write((int)addr,(char *)cmd,len,true); |
sweilz | 3:df82ebf4be54 | 607 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 608 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 609 | return; |
sweilz | 3:df82ebf4be54 | 610 | } |
sweilz | 3:df82ebf4be54 | 611 | |
sweilz | 3:df82ebf4be54 | 612 | // Sequential read |
sweilz | 3:df82ebf4be54 | 613 | ack = _i2c.read((int)addr,(char *)data,size); |
sweilz | 3:df82ebf4be54 | 614 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 615 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 616 | return; |
sweilz | 3:df82ebf4be54 | 617 | } |
sweilz | 3:df82ebf4be54 | 618 | |
bborredon | 0:80245aff63ce | 619 | } |
bborredon | 0:80245aff63ce | 620 | |
bborredon | 0:80245aff63ce | 621 | void EEPROM::read(int8_t& data) |
bborredon | 0:80245aff63ce | 622 | { |
sweilz | 3:df82ebf4be54 | 623 | uint8_t addr; |
sweilz | 3:df82ebf4be54 | 624 | int ack; |
sweilz | 3:df82ebf4be54 | 625 | |
sweilz | 3:df82ebf4be54 | 626 | // Check error |
sweilz | 3:df82ebf4be54 | 627 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 628 | return; |
bborredon | 0:80245aff63ce | 629 | |
sweilz | 3:df82ebf4be54 | 630 | // Device address |
sweilz | 3:df82ebf4be54 | 631 | addr = EEPROM_Address | _address; |
sweilz | 3:df82ebf4be54 | 632 | |
sweilz | 3:df82ebf4be54 | 633 | // Read data |
sweilz | 3:df82ebf4be54 | 634 | ack = _i2c.read((int)addr,(char *)&data,sizeof(data)); |
sweilz | 3:df82ebf4be54 | 635 | if(ack != 0) { |
sweilz | 3:df82ebf4be54 | 636 | _errnum = EEPROM_I2cError; |
sweilz | 3:df82ebf4be54 | 637 | return; |
sweilz | 3:df82ebf4be54 | 638 | } |
sweilz | 3:df82ebf4be54 | 639 | |
bborredon | 0:80245aff63ce | 640 | } |
bborredon | 0:80245aff63ce | 641 | |
bborredon | 0:80245aff63ce | 642 | void EEPROM::read(uint16_t address, int16_t& data) |
bborredon | 0:80245aff63ce | 643 | { |
sweilz | 3:df82ebf4be54 | 644 | int8_t cmd[2]; |
sweilz | 3:df82ebf4be54 | 645 | |
sweilz | 3:df82ebf4be54 | 646 | // Check error |
sweilz | 3:df82ebf4be54 | 647 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 648 | return; |
sweilz | 3:df82ebf4be54 | 649 | |
sweilz | 3:df82ebf4be54 | 650 | // Check address |
sweilz | 3:df82ebf4be54 | 651 | if(!checkAddress(address + 1)) { |
sweilz | 3:df82ebf4be54 | 652 | _errnum = EEPROM_OutOfRange; |
sweilz | 3:df82ebf4be54 | 653 | return; |
sweilz | 3:df82ebf4be54 | 654 | } |
sweilz | 3:df82ebf4be54 | 655 | |
sweilz | 3:df82ebf4be54 | 656 | read(address,cmd,2); |
sweilz | 3:df82ebf4be54 | 657 | |
sweilz | 3:df82ebf4be54 | 658 | memcpy(&data,cmd,2); |
sweilz | 3:df82ebf4be54 | 659 | |
bborredon | 0:80245aff63ce | 660 | } |
bborredon | 0:80245aff63ce | 661 | |
bborredon | 0:80245aff63ce | 662 | void EEPROM::read(uint16_t address, int32_t& data) |
bborredon | 0:80245aff63ce | 663 | { |
sweilz | 3:df82ebf4be54 | 664 | int8_t cmd[4]; |
sweilz | 3:df82ebf4be54 | 665 | |
sweilz | 3:df82ebf4be54 | 666 | // Check error |
sweilz | 3:df82ebf4be54 | 667 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 668 | return; |
sweilz | 3:df82ebf4be54 | 669 | |
sweilz | 3:df82ebf4be54 | 670 | // Check address |
sweilz | 3:df82ebf4be54 | 671 | if(!checkAddress(address + 3)) { |
sweilz | 3:df82ebf4be54 | 672 | _errnum = EEPROM_OutOfRange; |
sweilz | 3:df82ebf4be54 | 673 | return; |
sweilz | 3:df82ebf4be54 | 674 | } |
sweilz | 3:df82ebf4be54 | 675 | |
sweilz | 3:df82ebf4be54 | 676 | read(address,cmd,4); |
sweilz | 3:df82ebf4be54 | 677 | |
sweilz | 3:df82ebf4be54 | 678 | memcpy(&data,cmd,4); |
sweilz | 3:df82ebf4be54 | 679 | |
bborredon | 0:80245aff63ce | 680 | } |
bborredon | 0:80245aff63ce | 681 | |
bborredon | 0:80245aff63ce | 682 | void EEPROM::read(uint16_t address, float& data) |
bborredon | 0:80245aff63ce | 683 | { |
sweilz | 3:df82ebf4be54 | 684 | int8_t cmd[4]; |
sweilz | 3:df82ebf4be54 | 685 | |
sweilz | 3:df82ebf4be54 | 686 | // Check error |
sweilz | 3:df82ebf4be54 | 687 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 688 | return; |
sweilz | 3:df82ebf4be54 | 689 | |
sweilz | 3:df82ebf4be54 | 690 | // Check address |
sweilz | 3:df82ebf4be54 | 691 | if(!checkAddress(address + 3)) { |
sweilz | 3:df82ebf4be54 | 692 | _errnum = EEPROM_OutOfRange; |
sweilz | 3:df82ebf4be54 | 693 | return; |
sweilz | 3:df82ebf4be54 | 694 | } |
sweilz | 3:df82ebf4be54 | 695 | |
sweilz | 3:df82ebf4be54 | 696 | read(address,cmd,4); |
sweilz | 3:df82ebf4be54 | 697 | |
sweilz | 3:df82ebf4be54 | 698 | memcpy(&data,cmd,4); |
sweilz | 3:df82ebf4be54 | 699 | |
bborredon | 0:80245aff63ce | 700 | } |
bborredon | 0:80245aff63ce | 701 | |
bborredon | 0:80245aff63ce | 702 | void EEPROM::read(uint16_t address, void *data, uint16_t size) |
bborredon | 0:80245aff63ce | 703 | { |
sweilz | 3:df82ebf4be54 | 704 | int8_t *cmd = NULL; |
sweilz | 3:df82ebf4be54 | 705 | |
sweilz | 3:df82ebf4be54 | 706 | // Check error |
sweilz | 3:df82ebf4be54 | 707 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 708 | return; |
sweilz | 3:df82ebf4be54 | 709 | |
sweilz | 3:df82ebf4be54 | 710 | // Check address |
sweilz | 3:df82ebf4be54 | 711 | if(!checkAddress(address + size - 1)) { |
sweilz | 3:df82ebf4be54 | 712 | _errnum = EEPROM_OutOfRange; |
sweilz | 3:df82ebf4be54 | 713 | return; |
sweilz | 3:df82ebf4be54 | 714 | } |
sweilz | 3:df82ebf4be54 | 715 | |
sweilz | 3:df82ebf4be54 | 716 | cmd = (int8_t *)malloc(size); |
sweilz | 3:df82ebf4be54 | 717 | if(cmd == NULL) { |
sweilz | 3:df82ebf4be54 | 718 | _errnum = EEPROM_MallocError; |
sweilz | 3:df82ebf4be54 | 719 | return; |
sweilz | 3:df82ebf4be54 | 720 | } |
sweilz | 3:df82ebf4be54 | 721 | |
sweilz | 3:df82ebf4be54 | 722 | read(address,cmd,size); |
sweilz | 3:df82ebf4be54 | 723 | |
sweilz | 3:df82ebf4be54 | 724 | memcpy(data,cmd,size); |
sweilz | 3:df82ebf4be54 | 725 | |
sweilz | 3:df82ebf4be54 | 726 | free(cmd); |
sweilz | 3:df82ebf4be54 | 727 | |
bborredon | 0:80245aff63ce | 728 | } |
bborredon | 0:80245aff63ce | 729 | |
bborredon | 0:80245aff63ce | 730 | void EEPROM::ready(void) |
bborredon | 0:80245aff63ce | 731 | { |
sweilz | 3:df82ebf4be54 | 732 | int ack; |
sweilz | 3:df82ebf4be54 | 733 | uint8_t addr; |
sweilz | 3:df82ebf4be54 | 734 | uint8_t cmd; |
sweilz | 3:df82ebf4be54 | 735 | |
sweilz | 3:df82ebf4be54 | 736 | // Check error |
sweilz | 3:df82ebf4be54 | 737 | if(_errnum) |
sweilz | 3:df82ebf4be54 | 738 | return; |
sweilz | 3:df82ebf4be54 | 739 | |
sweilz | 3:df82ebf4be54 | 740 | // Device address |
sweilz | 3:df82ebf4be54 | 741 | addr = EEPROM_Address | _address; |
sweilz | 3:df82ebf4be54 | 742 | |
sweilz | 3:df82ebf4be54 | 743 | cmd = 0; |
sweilz | 3:df82ebf4be54 | 744 | /* |
sweilz | 3:df82ebf4be54 | 745 | // Wait end of write |
sweilz | 3:df82ebf4be54 | 746 | do { |
sweilz | 3:df82ebf4be54 | 747 | ack = _i2c.write((int)addr,(char *)cmd,0); |
sweilz | 3:df82ebf4be54 | 748 | } while(ack != 0); |
sweilz | 3:df82ebf4be54 | 749 | */ |
soulx | 2:c648c5e93d5e | 750 | wait_ms(5); |
bborredon | 0:80245aff63ce | 751 | } |
bborredon | 0:80245aff63ce | 752 | |
bborredon | 0:80245aff63ce | 753 | uint32_t EEPROM::getSize(void) |
bborredon | 0:80245aff63ce | 754 | { |
sweilz | 3:df82ebf4be54 | 755 | return(_size); |
bborredon | 0:80245aff63ce | 756 | } |
bborredon | 0:80245aff63ce | 757 | |
bborredon | 0:80245aff63ce | 758 | uint8_t EEPROM::getError(void) |
bborredon | 0:80245aff63ce | 759 | { |
sweilz | 3:df82ebf4be54 | 760 | return(_errnum); |
bborredon | 0:80245aff63ce | 761 | } |
bborredon | 0:80245aff63ce | 762 | |
bborredon | 0:80245aff63ce | 763 | bool EEPROM::checkAddress(uint16_t address) |
bborredon | 0:80245aff63ce | 764 | { |
sweilz | 3:df82ebf4be54 | 765 | bool ret = true; |
sweilz | 3:df82ebf4be54 | 766 | |
sweilz | 3:df82ebf4be54 | 767 | switch(_type) { |
sweilz | 3:df82ebf4be54 | 768 | case T24C01 : |
sweilz | 3:df82ebf4be54 | 769 | if(address >= T24C01) |
sweilz | 3:df82ebf4be54 | 770 | ret = false; |
sweilz | 3:df82ebf4be54 | 771 | break; |
sweilz | 3:df82ebf4be54 | 772 | case T24C02 : |
sweilz | 3:df82ebf4be54 | 773 | if(address >= T24C02) |
sweilz | 3:df82ebf4be54 | 774 | ret = false; |
sweilz | 3:df82ebf4be54 | 775 | break; |
sweilz | 3:df82ebf4be54 | 776 | case T24C04 : |
sweilz | 3:df82ebf4be54 | 777 | if(address >= T24C04) |
sweilz | 3:df82ebf4be54 | 778 | ret = false; |
sweilz | 3:df82ebf4be54 | 779 | break; |
sweilz | 3:df82ebf4be54 | 780 | case T24C08 : |
sweilz | 3:df82ebf4be54 | 781 | if(address >= T24C08) |
sweilz | 3:df82ebf4be54 | 782 | ret = false; |
sweilz | 3:df82ebf4be54 | 783 | break; |
sweilz | 3:df82ebf4be54 | 784 | case T24C16 : |
sweilz | 3:df82ebf4be54 | 785 | if(address >= T24C16) |
sweilz | 3:df82ebf4be54 | 786 | ret = false; |
sweilz | 3:df82ebf4be54 | 787 | break; |
sweilz | 3:df82ebf4be54 | 788 | case T24C32 : |
sweilz | 3:df82ebf4be54 | 789 | if(address >= T24C32) |
sweilz | 3:df82ebf4be54 | 790 | ret = false; |
sweilz | 3:df82ebf4be54 | 791 | break; |
sweilz | 3:df82ebf4be54 | 792 | case T24C64 : |
sweilz | 3:df82ebf4be54 | 793 | if(address >= T24C64) |
sweilz | 3:df82ebf4be54 | 794 | ret = false; |
sweilz | 3:df82ebf4be54 | 795 | break; |
sweilz | 3:df82ebf4be54 | 796 | case T24C128 : |
sweilz | 3:df82ebf4be54 | 797 | if(address >= T24C128) |
sweilz | 3:df82ebf4be54 | 798 | ret = false; |
sweilz | 3:df82ebf4be54 | 799 | break; |
sweilz | 3:df82ebf4be54 | 800 | case T24C256 : |
sweilz | 3:df82ebf4be54 | 801 | if(address >= T24C256) |
sweilz | 3:df82ebf4be54 | 802 | ret = false; |
sweilz | 3:df82ebf4be54 | 803 | break; |
sweilz | 3:df82ebf4be54 | 804 | case T24C512 : |
sweilz | 3:df82ebf4be54 | 805 | if(address >= T24C512) |
sweilz | 3:df82ebf4be54 | 806 | ret = false; |
sweilz | 3:df82ebf4be54 | 807 | break; |
sweilz | 3:df82ebf4be54 | 808 | case T24C1024 : |
sweilz | 3:df82ebf4be54 | 809 | if(address >= T24C1024) |
sweilz | 3:df82ebf4be54 | 810 | ret = false; |
sweilz | 3:df82ebf4be54 | 811 | break; |
sweilz | 3:df82ebf4be54 | 812 | case T24C1025 : |
sweilz | 3:df82ebf4be54 | 813 | if(address >= T24C1025 - 1) |
sweilz | 3:df82ebf4be54 | 814 | ret = false; |
sweilz | 3:df82ebf4be54 | 815 | break; |
sweilz | 3:df82ebf4be54 | 816 | } |
sweilz | 3:df82ebf4be54 | 817 | |
sweilz | 3:df82ebf4be54 | 818 | return(ret); |
sweilz | 3:df82ebf4be54 | 819 | } |