shubham c / Mbed 2 deprecated SBC_TEST_CDMS_CODE

CDMS code for testing sbc

Dependencies:   FreescaleIAP SimpleDMA mbed-rtos mbed

Fork of CDMS_CODE by shubham c

cdms_sd.h@197:1369ef45b49e, 2016-06-30 (annotated)

Committer:
ee12b079
Date:
Thu Jun 30 10:51:38 2016 +0000
Revision:
197:1369ef45b49e
Parent:
195:6a549c0e9287
Child:
203:424308159a56
latest revision (before sdcard testing) ready to be tested bypassing COM

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ee12b079 86:a26f5f22631d 1
ee12b079 86:a26f5f22631d 2
ee12b079 86:a26f5f22631d 3
ee12b079 86:a26f5f22631d 4 //SPI spi(PTE1, PTE3, PTE2); // MOSI,MISO, CLOCK microcontroller(in order)
ee12b079 86:a26f5f22631d 5 //DigitalOut cs_sd(PTE22);
ee12b079 86:a26f5f22631d 6
ee12b079 86:a26f5f22631d 7 //Serial sd1(USBTX,USBRX);
ee12b079 86:a26f5f22631d 8
ee12b079 86:a26f5f22631d 9
ee12b079 86:a26f5f22631d 10 #define SD_COMMAND_TIMEOUT 5000
ee12b079 86:a26f5f22631d 11
ee12b079 86:a26f5f22631d 12 #define SD_DBG 0
ee12b079 86:a26f5f22631d 13
ee12b079 86:a26f5f22631d 14 #define R1_IDLE_STATE (1 << 0)
ee12b079 86:a26f5f22631d 15 #define R1_ERASE_RESET (1 << 1)
ee12b079 86:a26f5f22631d 16 #define R1_ILLEGAL_COMMAND (1 << 2)
ee12b079 86:a26f5f22631d 17 #define R1_COM_CRC_ERROR (1 << 3)
ee12b079 86:a26f5f22631d 18 #define R1_ERASE_SEQUENCE_ERROR (1 << 4)
ee12b079 86:a26f5f22631d 19 #define R1_ADDRESS_ERROR (1 << 5)
ee12b079 86:a26f5f22631d 20 #define R1_PARAMETER_ERROR (1 << 6)
ee12b079 86:a26f5f22631d 21
ee12b079 86:a26f5f22631d 22
ee12b079 86:a26f5f22631d 23
ee12b079 86:a26f5f22631d 24 #define SD_MAX_CYCLES 10000
ee12b079 86:a26f5f22631d 25
ee12b079 193:ab528911780d 26 uint32_t SD_SCP_FIRST=1001;
ee12b079 193:ab528911780d 27 uint32_t SD_SCP_LAST=2000;
ee12b079 193:ab528911780d 28 uint32_t SD_SFF_AT_FIRST=2001;
ee12b079 193:ab528911780d 29 uint32_t SD_SFF_AT_LAST = 3000;
ee12b079 193:ab528911780d 30 uint32_t SD_SFF_BT_FIRST =3001;
ee12b079 193:ab528911780d 31 uint32_t SD_SFF_BT_LAST=4000;
ee12b079 193:ab528911780d 32 uint32_t SD_HK_ARCH_FIRST=4001;
ee12b079 193:ab528911780d 33 uint32_t SD_HK_ARCH_LAST= 5000;
ee12b079 193:ab528911780d 34 uint32_t LOG_FIRST =5001;
ee12b079 193:ab528911780d 35 uint32_t LOG_LAST=6000;
ee12b079 193:ab528911780d 36 uint32_t SD_MNG_SECT=7000;
ee12b079 86:a26f5f22631d 37
ee12b079 193:ab528911780d 38 extern uint8_t SD_INIT_FLAGS;
ee12b079 86:a26f5f22631d 39
ee12b079 86:a26f5f22631d 40 int initialise_card();
ee12b079 86:a26f5f22631d 41 int initialise_card_v1();
ee12b079 86:a26f5f22631d 42 int initialise_card_v2();
ee12b079 86:a26f5f22631d 43 int disk_write(const uint8_t *, uint64_t);
ee12b079 86:a26f5f22631d 44 int disk_read(uint8_t *, uint64_t);
ee12b079 86:a26f5f22631d 45 int disk_erase(int,int);
ee12b079 86:a26f5f22631d 46
ee12b079 193:ab528911780d 47 uint32_t FCTN_SD_MNG(uint8_t);
ee12b079 193:ab528911780d 48 int INCREMENT_SD_LIB(uint8_t);
ee12b079 86:a26f5f22631d 49
ee12b079 86:a26f5f22631d 50
ee12b079 86:a26f5f22631d 51 int cmd(int, int);
ee12b079 86:a26f5f22631d 52 int cmd58();
ee12b079 86:a26f5f22631d 53 int cmdx(int, int);
ee12b079 86:a26f5f22631d 54 int cmd8();
ee12b079 86:a26f5f22631d 55 int read(uint8_t*, uint32_t );
ee12b079 86:a26f5f22631d 56 int write(const uint8_t*, uint32_t );
ee12b079 86:a26f5f22631d 57 static uint32_t ext_bits(unsigned char *, int , int );
ee12b079 92:bce22b38c440 58 int SD_WRITE(uint8_t*,uint32_t,uint8_t);
ee12b079 193:ab528911780d 59 int FCTN_CDMS_SD_INIT();
ee12b079 195:6a549c0e9287 60 uint8_t SD_READ(uint8_t*,uint32_t,uint8_t);
ee12b079 86:a26f5f22631d 61 #define SDCARD_FAIL 0
ee12b079 86:a26f5f22631d 62 #define SDCARD_V1 1
ee12b079 86:a26f5f22631d 63 #define SDCARD_V2 2
ee12b079 86:a26f5f22631d 64 #define SDCARD_V2HC 3
ee12b079 86:a26f5f22631d 65
ee12b079 86:a26f5f22631d 66
ee12b079 86:a26f5f22631d 67 int cdv;
ee12b079 86:a26f5f22631d 68 uint64_t sd_sectors();
ee12b079 86:a26f5f22631d 69 uint64_t sectors;
ee12b079 86:a26f5f22631d 70
ee12b079 193:ab528911780d 71 int FCTN_CDMS_SD_INIT()
ee12b079 193:ab528911780d 72 {
ee12b079 193:ab528911780d 73 int i = initialise_card();
ee12b079 193:ab528911780d 74 debug_if(SD_DBG, "init card = %d\n", i);
ee12b079 193:ab528911780d 75 sectors = sd_sectors();
ee12b079 193:ab528911780d 76
ee12b079 193:ab528911780d 77 // Set block length to 512 (CMD16)
ee12b079 193:ab528911780d 78 if (cmd(16, 512) != 0) {
ee12b079 193:ab528911780d 79 debug("\rSet 512-byte block timed out\r\n");
ee12b079 193:ab528911780d 80 return 1;
ee12b079 193:ab528911780d 81 } else {
ee12b079 193:ab528911780d 82 //printf("\rDisk initialization successfull\r\n");
ee12b079 193:ab528911780d 83 }
ee12b079 193:ab528911780d 84
ee12b079 193:ab528911780d 85 spi.frequency(1000000); // Set to 1MHz for data transfer
ee12b079 193:ab528911780d 86 return 0;
ee12b079 86:a26f5f22631d 87 }
ee12b079 86:a26f5f22631d 88
ee12b079 86:a26f5f22631d 89
ee12b079 86:a26f5f22631d 90
ee12b079 195:6a549c0e9287 91 void FCTN_SD_MNGR(void)
ee12b079 86:a26f5f22631d 92 {
ee12b079 92:bce22b38c440 93 uint32_t fsc;
ee12b079 193:ab528911780d 94 uint32_t start_fsc;
ee12b079 92:bce22b38c440 95 uint8_t buffer[512];
ee12b079 92:bce22b38c440 96 int b=disk_read(buffer, SD_MNG_SECT);
ee12b079 195:6a549c0e9287 97
ee12b079 195:6a549c0e9287 98 fsc=(uint32_t)(buffer[0]<<24)+(uint32_t)(buffer[1]<<16)+(uint32_t)(buffer[2]<<8)+(uint32_t)buffer[3];
ee12b079 195:6a549c0e9287 99 start_fsc=(uint32_t)(buffer[4]<<24)+(uint32_t)(buffer[5]<<16)+(uint32_t)(buffer[6]<<8)+(uint32_t)buffer[7];
ee12b079 195:6a549c0e9287 100 FSC_CURRENT[1] = fsc;
ee12b079 195:6a549c0e9287 101 FSC_LAST[1] = start_fsc;
ee12b079 195:6a549c0e9287 102
ee12b079 195:6a549c0e9287 103 fsc=(uint32_t)(buffer[8]<<24)+(uint32_t)(buffer[9]<<16)+(uint32_t)(buffer[10]<<8)+(uint32_t)buffer[11];
ee12b079 195:6a549c0e9287 104 start_fsc=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15];
ee12b079 195:6a549c0e9287 105 FSC_CURRENT[2] = fsc;
ee12b079 195:6a549c0e9287 106 FSC_LAST[2] = start_fsc;
ee12b079 195:6a549c0e9287 107
ee12b079 195:6a549c0e9287 108 fsc=(uint32_t)(buffer[16]<<24)+(uint32_t)(buffer[17]<<16)+(uint32_t)(buffer[18]<<8)+(uint32_t)buffer[19];
ee12b079 195:6a549c0e9287 109 start_fsc=(uint32_t)(buffer[20]<<24)+(uint32_t)(buffer[21]<<16)+(uint32_t)(buffer[22]<<8)+(uint32_t)buffer[23];
ee12b079 195:6a549c0e9287 110 FSC_CURRENT[3] = fsc;
ee12b079 195:6a549c0e9287 111 FSC_LAST[3] = start_fsc;
ee12b079 195:6a549c0e9287 112
ee12b079 195:6a549c0e9287 113 fsc=(uint32_t)(buffer[24]<<24)+(uint32_t)(buffer[25]<<16)+(uint32_t)(buffer[26]<<8)+(uint32_t)buffer[27];
ee12b079 195:6a549c0e9287 114 start_fsc=(uint32_t)(buffer[28]<<24)+(uint32_t)(buffer[29]<<16)+(uint32_t)(buffer[30]<<8)+(uint32_t)buffer[31];
ee12b079 195:6a549c0e9287 115 FSC_CURRENT[4] = fsc;
ee12b079 195:6a549c0e9287 116 FSC_LAST[4] = start_fsc;
ee12b079 195:6a549c0e9287 117
ee12b079 195:6a549c0e9287 118 fsc=(uint32_t)(buffer[32]<<24)+(uint32_t)(buffer[33]<<16)+(uint32_t)(buffer[34]<<8)+(uint32_t)buffer[35];
ee12b079 195:6a549c0e9287 119 start_fsc=(uint32_t)(buffer[36]<<24)+(uint32_t)(buffer[37]<<16)+(uint32_t)(buffer[38]<<8)+(uint32_t)buffer[39];
ee12b079 195:6a549c0e9287 120 FSC_CURRENT[5] = fsc;
ee12b079 195:6a549c0e9287 121 FSC_LAST[5] = start_fsc;
ee12b079 193:ab528911780d 122 }
ee12b079 193:ab528911780d 123
ee12b079 193:ab528911780d 124 int INCREMENT_SD_LIB(uint8_t sid)
ee12b079 193:ab528911780d 125 {
ee12b079 193:ab528911780d 126 uint32_t fsc;
ee12b079 193:ab528911780d 127 uint32_t start_fsc;
ee12b079 193:ab528911780d 128 uint8_t buffer[512];
ee12b079 193:ab528911780d 129 disk_read(buffer,SD_MNG_SECT);
ee12b079 193:ab528911780d 130 if(sid==0x01)
ee12b079 86:a26f5f22631d 131 {
ee12b079 193:ab528911780d 132 fsc=(uint32_t)(buffer[0]<<24)+(uint32_t)(buffer[1]<<16)+(uint32_t)(buffer[2]<<8)+(uint32_t)buffer[3];
ee12b079 193:ab528911780d 133 start_fsc=(uint32_t)(buffer[4]<<24)+(uint32_t)(buffer[5]<<16)+(uint32_t)(buffer[6]<<8)+(uint32_t)buffer[7];
ee12b079 193:ab528911780d 134 buffer[0]=(uint8_t) (fsc>>24 & 0xFF);
ee12b079 193:ab528911780d 135 buffer[1]=(uint8_t) (fsc>>16 & 0xFF);
ee12b079 193:ab528911780d 136 buffer[2]=(uint8_t) (fsc>>8 & 0xFF);
ee12b079 193:ab528911780d 137 buffer[3]=(uint8_t) (fsc & 0xFF);
ee12b079 193:ab528911780d 138 if(fsc > SD_SCP_LAST-SD_SCP_FIRST+1)
ee12b079 193:ab528911780d 139 {
ee12b079 193:ab528911780d 140 start_fsc = start_fsc+1;
ee12b079 193:ab528911780d 141 buffer[4]=(uint8_t) (start_fsc>>24 & 0xFF);
ee12b079 193:ab528911780d 142 buffer[5]=(uint8_t) (start_fsc>>16 & 0xFF);
ee12b079 193:ab528911780d 143 buffer[6]=(uint8_t) (start_fsc>>8 & 0xFF);
ee12b079 193:ab528911780d 144 buffer[7]=(uint8_t) (start_fsc & 0xFF);
ee12b079 193:ab528911780d 145 }
ee12b079 193:ab528911780d 146 return disk_write(buffer,SD_MNG_SECT);
ee12b079 86:a26f5f22631d 147 }
ee12b079 193:ab528911780d 148 if(sid==0x02)
ee12b079 86:a26f5f22631d 149 {
ee12b079 92:bce22b38c440 150 fsc=(uint32_t)(buffer[8]<<24)+(uint32_t)(buffer[9]<<16)+(uint32_t)(buffer[10]<<8)+(uint32_t)buffer[11];
ee12b079 193:ab528911780d 151 start_fsc=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15];
ee12b079 193:ab528911780d 152 buffer[8]=(uint8_t) (fsc>>24 & 0xFF);
ee12b079 193:ab528911780d 153 buffer[9]=(uint8_t) (fsc>>16 & 0xFF);
ee12b079 193:ab528911780d 154 buffer[10]=(uint8_t) (fsc>>8 & 0xFF);
ee12b079 193:ab528911780d 155 buffer[11]=(uint8_t) (fsc & 0xFF);
ee12b079 193:ab528911780d 156 if(fsc > SD_SFF_AT_LAST-SD_SFF_AT_FIRST+1)
ee12b079 193:ab528911780d 157 {
ee12b079 193:ab528911780d 158 start_fsc = start_fsc+1;
ee12b079 193:ab528911780d 159 buffer[12]=(uint8_t) (start_fsc>>24 & 0xFF);
ee12b079 193:ab528911780d 160 buffer[13]=(uint8_t) (start_fsc>>16 & 0xFF);
ee12b079 193:ab528911780d 161 buffer[14]=(uint8_t) (start_fsc>>8 & 0xFF);
ee12b079 193:ab528911780d 162 buffer[15]=(uint8_t) (start_fsc & 0xFF);
ee12b079 193:ab528911780d 163 }
ee12b079 193:ab528911780d 164 return disk_write(buffer,SD_MNG_SECT);
ee12b079 86:a26f5f22631d 165 }
ee12b079 193:ab528911780d 166 if(sid==0x03)
ee12b079 86:a26f5f22631d 167 {
ee12b079 92:bce22b38c440 168 fsc=(uint32_t)(buffer[16]<<24)+(uint32_t)(buffer[17]<<16)+(uint32_t)(buffer[18]<<8)+(uint32_t)buffer[19];
ee12b079 193:ab528911780d 169 start_fsc=(uint32_t)(buffer[20]<<24)+(uint32_t)(buffer[21]<<16)+(uint32_t)(buffer[22]<<8)+(uint32_t)buffer[23];
ee12b079 193:ab528911780d 170 buffer[16]=(uint8_t) (fsc>>24 & 0xFF);
ee12b079 193:ab528911780d 171 buffer[17]=(uint8_t) (fsc>>16 & 0xFF);
ee12b079 193:ab528911780d 172 buffer[18]=(uint8_t) (fsc>>8 & 0xFF);
ee12b079 193:ab528911780d 173 buffer[19]=(uint8_t) (fsc & 0xFF);
ee12b079 193:ab528911780d 174 if(fsc > SD_SFF_BT_LAST-SD_SFF_BT_FIRST+1)
ee12b079 193:ab528911780d 175 {
ee12b079 193:ab528911780d 176 start_fsc = start_fsc+1;
ee12b079 193:ab528911780d 177 buffer[20]=(uint8_t) (start_fsc>>24 & 0xFF);
ee12b079 193:ab528911780d 178 buffer[21]=(uint8_t) (start_fsc>>16 & 0xFF);
ee12b079 193:ab528911780d 179 buffer[22]=(uint8_t) (start_fsc>>8 & 0xFF);
ee12b079 193:ab528911780d 180 buffer[23]=(uint8_t) (start_fsc & 0xFF);
ee12b079 193:ab528911780d 181 }
ee12b079 193:ab528911780d 182 return disk_write(buffer,SD_MNG_SECT);
ee12b079 86:a26f5f22631d 183 }
ee12b079 193:ab528911780d 184 if(sid==0x04)
ee12b079 193:ab528911780d 185 {
ee12b079 193:ab528911780d 186 fsc=(uint32_t)(buffer[24]<<24)+(uint32_t)(buffer[25]<<16)+(uint32_t)(buffer[26]<<8)+(uint32_t)buffer[27];
ee12b079 193:ab528911780d 187 start_fsc=(uint32_t)(buffer[28]<<24)+(uint32_t)(buffer[29]<<16)+(uint32_t)(buffer[30]<<8)+(uint32_t)buffer[31];
ee12b079 193:ab528911780d 188 buffer[24]=(uint8_t) (fsc>>24 & 0xFF);
ee12b079 193:ab528911780d 189 buffer[25]=(uint8_t) (fsc>>16 & 0xFF);
ee12b079 193:ab528911780d 190 buffer[26]=(uint8_t) (fsc>>8 & 0xFF);
ee12b079 193:ab528911780d 191 buffer[27]=(uint8_t) (fsc & 0xFF);
ee12b079 193:ab528911780d 192 if(fsc > SD_HK_ARCH_LAST-SD_HK_ARCH_FIRST+1)
ee12b079 193:ab528911780d 193 {
ee12b079 193:ab528911780d 194 start_fsc = start_fsc+1;
ee12b079 193:ab528911780d 195 buffer[28]=(uint8_t) (start_fsc>>24 & 0xFF);
ee12b079 193:ab528911780d 196 buffer[29]=(uint8_t) (start_fsc>>16 & 0xFF);
ee12b079 193:ab528911780d 197 buffer[30]=(uint8_t) (start_fsc>>8 & 0xFF);
ee12b079 193:ab528911780d 198 buffer[31]=(uint8_t) (start_fsc & 0xFF);
ee12b079 193:ab528911780d 199 }
ee12b079 193:ab528911780d 200 return disk_write(buffer,SD_MNG_SECT);
ee12b079 193:ab528911780d 201 }
ee12b079 193:ab528911780d 202 if(sid==0x05)
ee12b079 193:ab528911780d 203 {
ee12b079 193:ab528911780d 204 fsc=(uint32_t)(buffer[32]<<24)+(uint32_t)(buffer[33]<<16)+(uint32_t)(buffer[34]<<8)+(uint32_t)buffer[35];
ee12b079 193:ab528911780d 205 start_fsc=(uint32_t)(buffer[36]<<24)+(uint32_t)(buffer[37]<<16)+(uint32_t)(buffer[38]<<8)+(uint32_t)buffer[39];
ee12b079 193:ab528911780d 206 buffer[32]=(uint8_t) (fsc>>24 & 0xFF);
ee12b079 193:ab528911780d 207 buffer[33]=(uint8_t) (fsc>>16 & 0xFF);
ee12b079 193:ab528911780d 208 buffer[34]=(uint8_t) (fsc>>8 & 0xFF);
ee12b079 193:ab528911780d 209 buffer[35]=(uint8_t) (fsc & 0xFF);
ee12b079 193:ab528911780d 210 if(fsc > LOG_LAST-LOG_FIRST+1)
ee12b079 193:ab528911780d 211 {
ee12b079 193:ab528911780d 212 start_fsc = start_fsc+1;
ee12b079 193:ab528911780d 213 buffer[36]=(uint8_t) (start_fsc>>24 & 0xFF);
ee12b079 193:ab528911780d 214 buffer[37]=(uint8_t) (start_fsc>>16 & 0xFF);
ee12b079 193:ab528911780d 215 buffer[38]=(uint8_t) (start_fsc>>8 & 0xFF);
ee12b079 193:ab528911780d 216 buffer[39]=(uint8_t) (start_fsc & 0xFF);
ee12b079 193:ab528911780d 217 }
ee12b079 193:ab528911780d 218 return disk_write(buffer,SD_MNG_SECT);
ee12b079 193:ab528911780d 219 }
ee12b079 193:ab528911780d 220 return -1;
ee12b079 86:a26f5f22631d 221 }
ee12b079 86:a26f5f22631d 222
ee12b079 86:a26f5f22631d 223
ee12b079 92:bce22b38c440 224 int SD_WRITE(uint8_t* buffer,uint32_t fsc,uint8_t sid)
ee12b079 86:a26f5f22631d 225 {
ee12b079 86:a26f5f22631d 226 uint32_t block_number;
ee12b079 193:ab528911780d 227 int result = 10;
ee12b079 193:ab528911780d 228 if(sid==0x01)
ee12b079 86:a26f5f22631d 229 {
ee12b079 193:ab528911780d 230 //block_number=SD_SCP_FIRST+(fsc%(SD_SCP_LAST-SD_SCP_FIRST+1))-1;
ee12b079 92:bce22b38c440 231 block_number=SD_SCP_FIRST+fsc;
ee12b079 86:a26f5f22631d 232 result= disk_write(buffer,block_number);
ee12b079 193:ab528911780d 233 if(result == 0)
ee12b079 193:ab528911780d 234 INCREMENT_SD_LIB(sid);
ee12b079 193:ab528911780d 235 return result;
ee12b079 193:ab528911780d 236 }
ee12b079 193:ab528911780d 237 if(sid==0x02)
ee12b079 193:ab528911780d 238 {
ee12b079 193:ab528911780d 239 //block_number= SD_SFF_AT_FIRST+(fsc%(SD_SFF_AT_LAST - SD_SFF_AT_FIRST+1))-1;
ee12b079 193:ab528911780d 240 block_number= SD_SFF_AT_FIRST+fsc;
ee12b079 193:ab528911780d 241 result= disk_write(buffer,block_number);
ee12b079 193:ab528911780d 242 if(result == 0)
ee12b079 193:ab528911780d 243 INCREMENT_SD_LIB(sid);
ee12b079 86:a26f5f22631d 244 return result;
ee12b079 86:a26f5f22631d 245 }
ee12b079 193:ab528911780d 246 if(sid==0x03)
ee12b079 86:a26f5f22631d 247 {
ee12b079 193:ab528911780d 248 //block_number= SD_SFF_BT_FIRST +(fsc%(SD_SFF_BT_LAST - SD_SFF_BT_FIRST +1))-1;
ee12b079 193:ab528911780d 249 block_number= SD_SFF_BT_FIRST +fsc;
ee12b079 86:a26f5f22631d 250 result= disk_write(buffer,block_number);
ee12b079 193:ab528911780d 251 if(result == 0)
ee12b079 193:ab528911780d 252 INCREMENT_SD_LIB(sid);
ee12b079 86:a26f5f22631d 253 return result;
ee12b079 86:a26f5f22631d 254 }
ee12b079 193:ab528911780d 255 if(sid==0x04)
ee12b079 86:a26f5f22631d 256 {
ee12b079 193:ab528911780d 257 //block_number=SD_HK_ARCH_FIRST +(fsc%(SD_HK_ARCH_LAST - SD_HK_ARCH_FIRST +1))-1;
ee12b079 193:ab528911780d 258 block_number=SD_HK_ARCH_FIRST +fsc;
ee12b079 86:a26f5f22631d 259 result= disk_write(buffer,block_number);
ee12b079 193:ab528911780d 260 if(result == 0)
ee12b079 193:ab528911780d 261 INCREMENT_SD_LIB(sid);
ee12b079 86:a26f5f22631d 262 return result;
ee12b079 86:a26f5f22631d 263 }
ee12b079 193:ab528911780d 264 if(sid==0x05)
ee12b079 86:a26f5f22631d 265 {
ee12b079 193:ab528911780d 266 //block_number= LOG_FIRST +(fsc%(LOG_FIRST - LOG_FIRST +1))-1;
ee12b079 193:ab528911780d 267 block_number= LOG_FIRST +fsc;
ee12b079 86:a26f5f22631d 268 result= disk_write(buffer,block_number);
ee12b079 193:ab528911780d 269 if(result == 0)
ee12b079 193:ab528911780d 270 INCREMENT_SD_LIB(sid);
ee12b079 86:a26f5f22631d 271 return result;
ee12b079 86:a26f5f22631d 272 }
ee12b079 86:a26f5f22631d 273 return 1;
ee12b079 86:a26f5f22631d 274 }
ee12b079 86:a26f5f22631d 275
ee12b079 195:6a549c0e9287 276 uint8_t SD_READ(uint8_t* buffer,uint32_t fsc,uint8_t sid)
ee12b079 86:a26f5f22631d 277 {
ee12b079 195:6a549c0e9287 278 FCTN_SD_MNGR();
ee12b079 195:6a549c0e9287 279 if(SD_SW_EN_DS == 1)
ee12b079 195:6a549c0e9287 280 return 0x89;
ee12b079 86:a26f5f22631d 281 uint32_t block_number;
ee12b079 86:a26f5f22631d 282 int result;
ee12b079 193:ab528911780d 283 if(sid==0x01)
ee12b079 86:a26f5f22631d 284 {
ee12b079 195:6a549c0e9287 285 if(!(FSC_LAST[1]<=fsc && fsc<=FSC_CURRENT[1])){
ee12b079 195:6a549c0e9287 286 return 0x86;
ee12b079 195:6a549c0e9287 287 }
ee12b079 92:bce22b38c440 288 block_number=SD_SCP_FIRST + fsc;
ee12b079 86:a26f5f22631d 289 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 290 }
ee12b079 193:ab528911780d 291 else if(sid==0x02)
ee12b079 86:a26f5f22631d 292 {
ee12b079 195:6a549c0e9287 293 if(!(FSC_LAST[2]<=fsc && fsc<=FSC_CURRENT[2])){
ee12b079 195:6a549c0e9287 294 return 0x86;
ee12b079 195:6a549c0e9287 295 }
ee12b079 86:a26f5f22631d 296 block_number=SD_SFF_AT_FIRST + fsc;
ee12b079 86:a26f5f22631d 297 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 298 }
ee12b079 193:ab528911780d 299 else if(sid==0x03)
ee12b079 86:a26f5f22631d 300 {
ee12b079 195:6a549c0e9287 301 if(!(FSC_LAST[3]<=fsc && fsc<=FSC_CURRENT[3])){
ee12b079 195:6a549c0e9287 302 return 0x86;
ee12b079 195:6a549c0e9287 303 }
ee12b079 86:a26f5f22631d 304 block_number=SD_SFF_BT_FIRST + fsc;
ee12b079 86:a26f5f22631d 305 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 306 }
ee12b079 193:ab528911780d 307 else if(sid==0x04)
ee12b079 86:a26f5f22631d 308 {
ee12b079 195:6a549c0e9287 309 if(!(FSC_LAST[4]<=fsc && fsc<=FSC_CURRENT[4])){
ee12b079 195:6a549c0e9287 310 return 0x86;
ee12b079 195:6a549c0e9287 311 }
ee12b079 86:a26f5f22631d 312 block_number=SD_HK_ARCH_FIRST + fsc;
ee12b079 86:a26f5f22631d 313 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 314 }
ee12b079 193:ab528911780d 315 else if(sid==0x05)
ee12b079 86:a26f5f22631d 316 {
ee12b079 195:6a549c0e9287 317 if(!(FSC_LAST[5]<=fsc && fsc<=FSC_CURRENT[5])){
ee12b079 195:6a549c0e9287 318 return 0x86;
ee12b079 195:6a549c0e9287 319 }
ee12b079 86:a26f5f22631d 320 block_number=LOG_FIRST +fsc;
ee12b079 86:a26f5f22631d 321 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 322 }
ee12b079 86:a26f5f22631d 323 else
ee12b079 86:a26f5f22631d 324 {
ee12b079 195:6a549c0e9287 325 return 0x02;
ee12b079 86:a26f5f22631d 326 }
ee12b079 195:6a549c0e9287 327 if(result == 0)
ee12b079 195:6a549c0e9287 328 return 0xA0;
ee12b079 195:6a549c0e9287 329 else
ee12b079 195:6a549c0e9287 330 return 0x88;
ee12b079 86:a26f5f22631d 331 }
ee12b079 86:a26f5f22631d 332
ee12b079 86:a26f5f22631d 333
ee12b079 86:a26f5f22631d 334 int initialise_card()
ee12b079 86:a26f5f22631d 335 {
ee12b079 86:a26f5f22631d 336 // Set to 100kHz for initialisation, and clock card with cs_sd = 1
ee12b079 86:a26f5f22631d 337 spi.frequency(100000); // changed on 31 12 2015 to 1 MHz
ee12b079 86:a26f5f22631d 338 cs_sd = 1;
ee12b079 86:a26f5f22631d 339 for (int i = 0; i < 16; i++) {
ee12b079 86:a26f5f22631d 340 spi.write(0xFF);
ee12b079 86:a26f5f22631d 341 }
ee12b079 193:ab528911780d 342 uint8_t R1_response = cmd(0,0);
ee12b079 193:ab528911780d 343 gPC.printf("0x%02X",R1_response);
ee12b079 86:a26f5f22631d 344 // send CMD0, should return with all zeros except IDLE STATE set (bit 0)
ee12b079 193:ab528911780d 345 if (R1_response != R1_IDLE_STATE) {
ee12b079 86:a26f5f22631d 346 debug("No disk, or could not put SD card in to spi idle state\r\n");
ee12b079 86:a26f5f22631d 347 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 348 }
ee12b079 193:ab528911780d 349 else
ee12b079 193:ab528911780d 350 gPC.puts("SD Card is in IDLE state\n\r");
ee12b079 86:a26f5f22631d 351
ee12b079 193:ab528911780d 352 // send CMD8 to determine whther it is ver 2.x
ee12b079 86:a26f5f22631d 353 int r = cmd8();
ee12b079 86:a26f5f22631d 354 if (r == R1_IDLE_STATE) {
ee12b079 193:ab528911780d 355 gPC.puts("Entering V2\r");
ee12b079 193:ab528911780d 356 int q = initialise_card_v2();
ee12b079 193:ab528911780d 357 return q;
ee12b079 86:a26f5f22631d 358
ee12b079 86:a26f5f22631d 359 } else if (r == (R1_IDLE_STATE | R1_ILLEGAL_COMMAND)) {
ee12b079 193:ab528911780d 360 gPC.puts("Entering V1");
ee12b079 86:a26f5f22631d 361 return initialise_card_v1();
ee12b079 86:a26f5f22631d 362
ee12b079 86:a26f5f22631d 363 } else {
ee12b079 86:a26f5f22631d 364 debug("\rNot in idle state after sending CMD8 (not an SD card?)\r\n");
ee12b079 86:a26f5f22631d 365 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 366 }
ee12b079 86:a26f5f22631d 367 }
ee12b079 86:a26f5f22631d 368
ee12b079 86:a26f5f22631d 369 int initialise_card_v1()
ee12b079 86:a26f5f22631d 370 {
ee12b079 86:a26f5f22631d 371 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 372 cmd(55, 0);
ee12b079 86:a26f5f22631d 373 if (cmd(41, 0) == 0) {
ee12b079 96:4ca92f9775e0 374 gPC.puts("\rv1 initialization successfull\r\n");
ee12b079 86:a26f5f22631d 375 cdv = 512;
ee12b079 86:a26f5f22631d 376 debug_if(SD_DBG, "\n\rInit: SEDCARD_V1\n\r");
ee12b079 86:a26f5f22631d 377
ee12b079 86:a26f5f22631d 378 return SDCARD_V1;
ee12b079 86:a26f5f22631d 379 }
ee12b079 86:a26f5f22631d 380 }
ee12b079 86:a26f5f22631d 381
ee12b079 86:a26f5f22631d 382 debug("\rTimeout waiting for v1.x card\r\n");
ee12b079 86:a26f5f22631d 383 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 384 }
ee12b079 86:a26f5f22631d 385
ee12b079 86:a26f5f22631d 386
ee12b079 86:a26f5f22631d 387 int initialise_card_v2()
ee12b079 86:a26f5f22631d 388 {
ee12b079 86:a26f5f22631d 389 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 390 wait_ms(50);
ee12b079 86:a26f5f22631d 391 cmd58();
ee12b079 86:a26f5f22631d 392 cmd(55, 0);
ee12b079 86:a26f5f22631d 393 if (cmd(41, 0x40000000) == 0) {
ee12b079 193:ab528911780d 394 if (DEBUG)
ee12b079 193:ab528911780d 395 gPC.puts("\rv2 initialization successfull\r\n");
ee12b079 86:a26f5f22631d 396 cmd58();
ee12b079 86:a26f5f22631d 397 debug_if(SD_DBG, "\n\rInit: SDCARD_V2\n\r");
ee12b079 86:a26f5f22631d 398 cdv = 1;
ee12b079 86:a26f5f22631d 399 return SDCARD_V2;
ee12b079 86:a26f5f22631d 400 }
ee12b079 86:a26f5f22631d 401 }
ee12b079 86:a26f5f22631d 402
ee12b079 86:a26f5f22631d 403 debug("\rTimeout waiting for v2.x card\r\n");
ee12b079 86:a26f5f22631d 404 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 405 }
ee12b079 86:a26f5f22631d 406
ee12b079 86:a26f5f22631d 407 int cmd(int cmd, int arg)
ee12b079 86:a26f5f22631d 408 {
ee12b079 86:a26f5f22631d 409 cs_sd = 0;
ee12b079 86:a26f5f22631d 410
ee12b079 86:a26f5f22631d 411 // send a command
ee12b079 86:a26f5f22631d 412 spi.write(0x40 | cmd);
ee12b079 86:a26f5f22631d 413 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 414 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 415 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 416 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 417 spi.write(0x95);
ee12b079 86:a26f5f22631d 418
ee12b079 86:a26f5f22631d 419 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 420 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 421 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 422 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 423 cs_sd = 1;
ee12b079 86:a26f5f22631d 424 spi.write(0xFF);
ee12b079 86:a26f5f22631d 425 return response;
ee12b079 86:a26f5f22631d 426 }
ee12b079 86:a26f5f22631d 427 }
ee12b079 86:a26f5f22631d 428 cs_sd = 1;
ee12b079 86:a26f5f22631d 429 spi.write(0xFF);
ee12b079 86:a26f5f22631d 430 return -1; // timeout
ee12b079 86:a26f5f22631d 431 }
ee12b079 86:a26f5f22631d 432
ee12b079 86:a26f5f22631d 433
ee12b079 86:a26f5f22631d 434 int cmd58()
ee12b079 86:a26f5f22631d 435 {
ee12b079 86:a26f5f22631d 436 cs_sd = 0;
ee12b079 86:a26f5f22631d 437 int arg = 0;
ee12b079 86:a26f5f22631d 438
ee12b079 86:a26f5f22631d 439 // send a command
ee12b079 86:a26f5f22631d 440 spi.write(0x40 | 58);
ee12b079 86:a26f5f22631d 441 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 442 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 443 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 444 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 445 spi.write(0x95);
ee12b079 86:a26f5f22631d 446
ee12b079 86:a26f5f22631d 447 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 448 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 449 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 450 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 451 int ocr = spi.write(0xFF) << 24;
ee12b079 86:a26f5f22631d 452 ocr |= spi.write(0xFF) << 16;
ee12b079 86:a26f5f22631d 453 ocr |= spi.write(0xFF) << 8;
ee12b079 86:a26f5f22631d 454 ocr |= spi.write(0xFF) << 0;
ee12b079 86:a26f5f22631d 455 cs_sd = 1;
ee12b079 86:a26f5f22631d 456 spi.write(0xFF);
ee12b079 86:a26f5f22631d 457 return response;
ee12b079 86:a26f5f22631d 458 }
ee12b079 86:a26f5f22631d 459 }
ee12b079 86:a26f5f22631d 460 cs_sd = 1;
ee12b079 86:a26f5f22631d 461 spi.write(0xFF);
ee12b079 86:a26f5f22631d 462 return -1; // timeout
ee12b079 86:a26f5f22631d 463 }
ee12b079 86:a26f5f22631d 464
ee12b079 86:a26f5f22631d 465
ee12b079 86:a26f5f22631d 466 int cmd8()
ee12b079 86:a26f5f22631d 467 {
ee12b079 86:a26f5f22631d 468 cs_sd = 0;
ee12b079 86:a26f5f22631d 469
ee12b079 86:a26f5f22631d 470 // send a command
ee12b079 86:a26f5f22631d 471 spi.write(0x40 | 8); // CMD8
ee12b079 86:a26f5f22631d 472 spi.write(0x00); // reserved
ee12b079 86:a26f5f22631d 473 spi.write(0x00); // reserved
ee12b079 86:a26f5f22631d 474 spi.write(0x01); // 3.3v
ee12b079 86:a26f5f22631d 475 spi.write(0xAA); // check pattern
ee12b079 86:a26f5f22631d 476 spi.write(0x87); // crc
ee12b079 86:a26f5f22631d 477
ee12b079 86:a26f5f22631d 478 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 479 for (int i = 0; i < SD_COMMAND_TIMEOUT * 1000; i++) {
ee12b079 86:a26f5f22631d 480 char response[5];
ee12b079 86:a26f5f22631d 481 response[0] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 482 if (!(response[0] & 0x80)) {
ee12b079 86:a26f5f22631d 483 for (int j = 1; j < 5; j++) {
ee12b079 86:a26f5f22631d 484 response[i] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 485 }
ee12b079 86:a26f5f22631d 486 cs_sd = 1;
ee12b079 86:a26f5f22631d 487 spi.write(0xFF);
ee12b079 86:a26f5f22631d 488 return response[0];
ee12b079 86:a26f5f22631d 489 }
ee12b079 86:a26f5f22631d 490 }
ee12b079 86:a26f5f22631d 491 cs_sd = 1;
ee12b079 86:a26f5f22631d 492 spi.write(0xFF);
ee12b079 86:a26f5f22631d 493 return -1; // timeout
ee12b079 86:a26f5f22631d 494 }
ee12b079 86:a26f5f22631d 495
ee12b079 86:a26f5f22631d 496 uint64_t sd_sectors()
ee12b079 86:a26f5f22631d 497 {
ee12b079 86:a26f5f22631d 498 uint32_t c_size, c_size_mult, read_bl_len;
ee12b079 86:a26f5f22631d 499 uint32_t block_len, mult, blocknr, capacity;
ee12b079 86:a26f5f22631d 500 uint32_t hc_c_size;
ee12b079 86:a26f5f22631d 501 uint64_t blocks;
ee12b079 86:a26f5f22631d 502
ee12b079 86:a26f5f22631d 503 // CMD9, Response R2 (R1 byte + 16-byte block read)
ee12b079 86:a26f5f22631d 504 if (cmdx(9, 0) != 0) {
ee12b079 86:a26f5f22631d 505 debug("\rDidn't get a response from the disk\n");
ee12b079 86:a26f5f22631d 506 return 0;
ee12b079 86:a26f5f22631d 507 }
ee12b079 86:a26f5f22631d 508
ee12b079 86:a26f5f22631d 509 uint8_t cs_sdd[16];
ee12b079 86:a26f5f22631d 510 if (read(cs_sdd, 16) != 0) {
ee12b079 86:a26f5f22631d 511 debug("\rCouldn't read cs_sdd response from disk\n");
ee12b079 86:a26f5f22631d 512 return 0;
ee12b079 86:a26f5f22631d 513 }
ee12b079 86:a26f5f22631d 514
ee12b079 86:a26f5f22631d 515 // cs_sdd_structure : cs_sdd[127:126]
ee12b079 86:a26f5f22631d 516 // c_size : cs_sdd[73:62]
ee12b079 86:a26f5f22631d 517 // c_size_mult : cs_sdd[49:47]
ee12b079 86:a26f5f22631d 518 // read_bl_len : cs_sdd[83:80] - the *maximum* read block length
ee12b079 86:a26f5f22631d 519
ee12b079 86:a26f5f22631d 520 int cs_sdd_structure = ext_bits(cs_sdd, 127, 126);
ee12b079 86:a26f5f22631d 521
ee12b079 86:a26f5f22631d 522 switch (cs_sdd_structure) {
ee12b079 86:a26f5f22631d 523 case 0:
ee12b079 86:a26f5f22631d 524 cdv = 512;
ee12b079 86:a26f5f22631d 525 c_size = ext_bits(cs_sdd, 73, 62);
ee12b079 86:a26f5f22631d 526 c_size_mult = ext_bits(cs_sdd, 49, 47);
ee12b079 86:a26f5f22631d 527 read_bl_len = ext_bits(cs_sdd, 83, 80);
ee12b079 86:a26f5f22631d 528
ee12b079 86:a26f5f22631d 529 block_len = 1 << read_bl_len;
ee12b079 86:a26f5f22631d 530 mult = 1 << (c_size_mult + 2);
ee12b079 86:a26f5f22631d 531 blocknr = (c_size + 1) * mult;
ee12b079 86:a26f5f22631d 532 capacity = blocknr * block_len;
ee12b079 86:a26f5f22631d 533 blocks = capacity / 512;
ee12b079 86:a26f5f22631d 534 debug_if(SD_DBG, "\n\rSDCard\n\rc_size: %d \n\rcapacity: %ld \n\rsectors: %lld\n\r", c_size, capacity, blocks);
ee12b079 86:a26f5f22631d 535 break;
ee12b079 86:a26f5f22631d 536
ee12b079 86:a26f5f22631d 537 case 1:
ee12b079 86:a26f5f22631d 538 cdv = 1;
ee12b079 86:a26f5f22631d 539 hc_c_size = ext_bits(cs_sdd, 63, 48);
ee12b079 86:a26f5f22631d 540 blocks = (hc_c_size+1)*1024;
ee12b079 86:a26f5f22631d 541 debug_if(SD_DBG, "\n\rSDHC Card \n\rhc_c_size: %d\n\rcapacity: %lld \n\rsectors: %lld\n\r", hc_c_size, blocks*512, blocks);
ee12b079 86:a26f5f22631d 542 break;
ee12b079 86:a26f5f22631d 543
ee12b079 86:a26f5f22631d 544 default:
ee12b079 86:a26f5f22631d 545 debug("cs_sdD struct unsupported\r\n");
ee12b079 86:a26f5f22631d 546 return 0;
ee12b079 86:a26f5f22631d 547 };
ee12b079 86:a26f5f22631d 548 return blocks;
ee12b079 86:a26f5f22631d 549 }
ee12b079 86:a26f5f22631d 550
ee12b079 86:a26f5f22631d 551 int cmdx(int cmd, int arg)
ee12b079 86:a26f5f22631d 552 {
ee12b079 86:a26f5f22631d 553 cs_sd = 0;
ee12b079 86:a26f5f22631d 554
ee12b079 86:a26f5f22631d 555 // send a command
ee12b079 86:a26f5f22631d 556 spi.write(0x40 | cmd);
ee12b079 86:a26f5f22631d 557 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 558 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 559 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 560 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 561 spi.write(0x95);
ee12b079 86:a26f5f22631d 562
ee12b079 86:a26f5f22631d 563 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 564 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 565 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 566 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 567 return response;
ee12b079 86:a26f5f22631d 568 }
ee12b079 86:a26f5f22631d 569 }
ee12b079 86:a26f5f22631d 570 cs_sd = 1;
ee12b079 86:a26f5f22631d 571 spi.write(0xFF);
ee12b079 193:ab528911780d 572 return 1; // timeout
ee12b079 86:a26f5f22631d 573 }
ee12b079 86:a26f5f22631d 574
ee12b079 86:a26f5f22631d 575 static uint32_t ext_bits(unsigned char *data, int msb, int lsb)
ee12b079 86:a26f5f22631d 576 {
ee12b079 86:a26f5f22631d 577 uint32_t bits = 0;
ee12b079 86:a26f5f22631d 578 uint32_t size = 1 + msb - lsb;
ee12b079 86:a26f5f22631d 579 for (int i = 0; i < size; i++) {
ee12b079 86:a26f5f22631d 580 uint32_t position = lsb + i;
ee12b079 86:a26f5f22631d 581 uint32_t byte = 15 - (position >> 3);
ee12b079 86:a26f5f22631d 582 uint32_t bit = position & 0x7;
ee12b079 86:a26f5f22631d 583 uint32_t value = (data[byte] >> bit) & 1;
ee12b079 86:a26f5f22631d 584 bits |= value << i;
ee12b079 86:a26f5f22631d 585 }
ee12b079 86:a26f5f22631d 586 return bits;
ee12b079 86:a26f5f22631d 587 }
ee12b079 86:a26f5f22631d 588
ee12b079 86:a26f5f22631d 589 int disk_write(const uint8_t *buffer, uint64_t block_number)
ee12b079 86:a26f5f22631d 590
ee12b079 86:a26f5f22631d 591 {
ee12b079 86:a26f5f22631d 592 // set write address for single block (CMD24)
ee12b079 86:a26f5f22631d 593 if (cmd(24, block_number * cdv) != 0) {
ee12b079 86:a26f5f22631d 594 return 1;
ee12b079 86:a26f5f22631d 595 }
ee12b079 86:a26f5f22631d 596
ee12b079 86:a26f5f22631d 597 // send the data block
ee12b079 193:ab528911780d 598 write(buffer, 512);
ee12b079 197:1369ef45b49e 599 //gPC.printf("Written Successfully bro \n");
ee12b079 193:ab528911780d 600 return 0;
ee12b079 86:a26f5f22631d 601 }
ee12b079 86:a26f5f22631d 602
ee12b079 86:a26f5f22631d 603 int write(const uint8_t*buffer, uint32_t length)
ee12b079 86:a26f5f22631d 604 {
ee12b079 86:a26f5f22631d 605 cs_sd = 0;
ee12b079 86:a26f5f22631d 606
ee12b079 86:a26f5f22631d 607 // indicate start of block
ee12b079 86:a26f5f22631d 608 spi.write(0xFE);
ee12b079 86:a26f5f22631d 609
ee12b079 86:a26f5f22631d 610 // write the data
ee12b079 86:a26f5f22631d 611 for (int i = 0; i < length; i++) {
ee12b079 86:a26f5f22631d 612 spi.write(buffer[i]);
ee12b079 86:a26f5f22631d 613 }
ee12b079 86:a26f5f22631d 614
ee12b079 86:a26f5f22631d 615 // write the checksum
ee12b079 86:a26f5f22631d 616 spi.write(0xFF);
ee12b079 86:a26f5f22631d 617 spi.write(0xFF);
ee12b079 86:a26f5f22631d 618
ee12b079 86:a26f5f22631d 619 // check the response token
ee12b079 86:a26f5f22631d 620 if ((spi.write(0xFF) & 0x1F) != 0x05) {
ee12b079 86:a26f5f22631d 621 cs_sd = 1;
ee12b079 86:a26f5f22631d 622 spi.write(0xFF);
ee12b079 86:a26f5f22631d 623 return 1;
ee12b079 86:a26f5f22631d 624 }
ee12b079 86:a26f5f22631d 625
ee12b079 86:a26f5f22631d 626 // wait for write to finish
ee12b079 86:a26f5f22631d 627 while (spi.write(0xFF) == 0);
ee12b079 86:a26f5f22631d 628
ee12b079 86:a26f5f22631d 629 cs_sd = 1;
ee12b079 86:a26f5f22631d 630 spi.write(0xFF);
ee12b079 86:a26f5f22631d 631 return 0;
ee12b079 86:a26f5f22631d 632 }
ee12b079 86:a26f5f22631d 633
ee12b079 86:a26f5f22631d 634 int disk_read(uint8_t *buffer, uint64_t block_number)
ee12b079 86:a26f5f22631d 635 {
ee12b079 86:a26f5f22631d 636 // set read address for single block (CMD17)
ee12b079 86:a26f5f22631d 637 if (cmd(17, block_number * cdv) != 0) {
ee12b079 86:a26f5f22631d 638 return 1;
ee12b079 86:a26f5f22631d 639 }
ee12b079 86:a26f5f22631d 640
ee12b079 86:a26f5f22631d 641 // receive the data
ee12b079 86:a26f5f22631d 642 read(buffer, 512);
ee12b079 86:a26f5f22631d 643 return 0;
ee12b079 86:a26f5f22631d 644 }
ee12b079 86:a26f5f22631d 645
ee12b079 86:a26f5f22631d 646 int read(uint8_t *buffer, uint32_t length)
ee12b079 86:a26f5f22631d 647 {
ee12b079 86:a26f5f22631d 648 cs_sd = 0;
ee12b079 86:a26f5f22631d 649
ee12b079 86:a26f5f22631d 650 // read until start byte (0xFF)
ee12b079 86:a26f5f22631d 651 while (spi.write(0xFF) != 0xFE);
ee12b079 86:a26f5f22631d 652
ee12b079 86:a26f5f22631d 653 // read data
ee12b079 86:a26f5f22631d 654 for (int i = 0; i < length; i++) {
ee12b079 86:a26f5f22631d 655 buffer[i] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 656 }
ee12b079 86:a26f5f22631d 657 spi.write(0xFF); // checksum
ee12b079 86:a26f5f22631d 658 spi.write(0xFF);
ee12b079 86:a26f5f22631d 659
ee12b079 86:a26f5f22631d 660 cs_sd = 1;
ee12b079 86:a26f5f22631d 661 spi.write(0xFF);
ee12b079 86:a26f5f22631d 662 return 0;
ee12b079 86:a26f5f22631d 663 }
ee12b079 86:a26f5f22631d 664
ee12b079 86:a26f5f22631d 665 int disk_erase(int startBlock, int totalBlocks)
ee12b079 86:a26f5f22631d 666 {
ee12b079 86:a26f5f22631d 667 if(cmd(32, startBlock * cdv) != 0) {
ee12b079 86:a26f5f22631d 668 return 1;
ee12b079 86:a26f5f22631d 669 }
ee12b079 86:a26f5f22631d 670 if (cmd(33, (startBlock+totalBlocks-1) * cdv) != 0) {
ee12b079 86:a26f5f22631d 671 return 1;
ee12b079 86:a26f5f22631d 672 }
ee12b079 86:a26f5f22631d 673 if (cmd(38,0) != 0) {
ee12b079 86:a26f5f22631d 674 return 1;
ee12b079 86:a26f5f22631d 675 }
ee12b079 86:a26f5f22631d 676
ee12b079 86:a26f5f22631d 677 return 0; //normal return
ee12b079 92:bce22b38c440 678 }