chaithanya rss / Mbed 2 deprecated CDMS_SDCARD

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Dependencies:   mbed

SD.h@1:231e99f73b19, 2016-09-19 (annotated)

Committer:
chaithanyarss
Date:
Mon Sep 19 06:46:27 2016 +0000
Revision:
1:231e99f73b19
Parent:
0:83e597a2a37c 
lol

Who changed what in which revision?

UserRevisionLine numberNew contents of line
chaithanyarss 0:83e597a2a37c 1
chaithanyarss 0:83e597a2a37c 2 #define SPI_MOSI PTE1
chaithanyarss 0:83e597a2a37c 3 #define SPI_MISO PTE3
chaithanyarss 0:83e597a2a37c 4 #define SPI_CLK PTE2
chaithanyarss 0:83e597a2a37c 5 #define SPI_CS_SDC PTE22
chaithanyarss 0:83e597a2a37c 6
chaithanyarss 0:83e597a2a37c 7 DigitalOut cs_sd(SPI_CS_SDC);
chaithanyarss 1:231e99f73b19 8 DigitalOut SD_SW_EN_DS (PTD4,1);
chaithanyarss 0:83e597a2a37c 9 SPI spi( SPI_MOSI, SPI_MISO, SPI_CLK );
chaithanyarss 0:83e597a2a37c 10
chaithanyarss 0:83e597a2a37c 11 uint32_t FSC_CURRENT[6];
chaithanyarss 0:83e597a2a37c 12 uint32_t FSC_LAST[6];
chaithanyarss 0:83e597a2a37c 13 uint8_t SD_RD_ERROR;
chaithanyarss 0:83e597a2a37c 14
chaithanyarss 0:83e597a2a37c 15
chaithanyarss 1:231e99f73b19 16 #define SD_COMMAND_TIMEOUT 10
chaithanyarss 0:83e597a2a37c 17
chaithanyarss 0:83e597a2a37c 18 #define SD_DBG 0
chaithanyarss 0:83e597a2a37c 19
chaithanyarss 0:83e597a2a37c 20 #define R1_IDLE_STATE (1 << 0)
chaithanyarss 0:83e597a2a37c 21 #define R1_ERASE_RESET (1 << 1)
chaithanyarss 0:83e597a2a37c 22 #define R1_ILLEGAL_COMMAND (1 << 2)
chaithanyarss 0:83e597a2a37c 23 #define R1_COM_CRC_ERROR (1 << 3)
chaithanyarss 0:83e597a2a37c 24 #define R1_ERASE_SEQUENCE_ERROR (1 << 4)
chaithanyarss 0:83e597a2a37c 25 #define R1_ADDRESS_ERROR (1 << 5)
chaithanyarss 0:83e597a2a37c 26 #define R1_PARAMETER_ERROR (1 << 6)
chaithanyarss 0:83e597a2a37c 27
chaithanyarss 0:83e597a2a37c 28
chaithanyarss 0:83e597a2a37c 29
chaithanyarss 0:83e597a2a37c 30 #define SD_MAX_CYCLES 10000
chaithanyarss 0:83e597a2a37c 31
chaithanyarss 0:83e597a2a37c 32 uint32_t SD_SCP_FIRST=1001;
chaithanyarss 0:83e597a2a37c 33 uint32_t SD_SCP_LAST=2000;
chaithanyarss 0:83e597a2a37c 34 uint32_t SD_SFF_AT_FIRST=2001;
chaithanyarss 0:83e597a2a37c 35 uint32_t SD_SFF_AT_LAST = 3000;
chaithanyarss 0:83e597a2a37c 36 uint32_t SD_SFF_BT_FIRST =3001;
chaithanyarss 0:83e597a2a37c 37 uint32_t SD_SFF_BT_LAST=4000;
chaithanyarss 0:83e597a2a37c 38 uint32_t SD_HK_ARCH_FIRST=4001;
chaithanyarss 0:83e597a2a37c 39 uint32_t SD_HK_ARCH_LAST= 5000;
chaithanyarss 0:83e597a2a37c 40 uint32_t LOG_FIRST =5001;
chaithanyarss 0:83e597a2a37c 41 uint32_t LOG_LAST=6000;
chaithanyarss 0:83e597a2a37c 42 uint32_t SD_MNG_SECT=7000;
chaithanyarss 0:83e597a2a37c 43 uint16_t SD_LIB_WRITES = 0;
chaithanyarss 0:83e597a2a37c 44
chaithanyarss 0:83e597a2a37c 45 extern uint8_t SD_INIT_FLAGS;
chaithanyarss 0:83e597a2a37c 46
chaithanyarss 0:83e597a2a37c 47 int initialise_card();
chaithanyarss 0:83e597a2a37c 48 int initialise_card_v1();
chaithanyarss 0:83e597a2a37c 49 int initialise_card_v2();
chaithanyarss 0:83e597a2a37c 50 int disk_write(const uint8_t *, uint64_t);
chaithanyarss 0:83e597a2a37c 51 int disk_read(uint8_t *, uint64_t);
chaithanyarss 0:83e597a2a37c 52 int disk_erase(int,int);
chaithanyarss 0:83e597a2a37c 53 int disk_read_statusbits(uint8_t *);
chaithanyarss 0:83e597a2a37c 54
chaithanyarss 0:83e597a2a37c 55 void FCTN_SD_MNG();
chaithanyarss 0:83e597a2a37c 56 int INCREMENT_SD_LIB(uint8_t);
chaithanyarss 0:83e597a2a37c 57
chaithanyarss 0:83e597a2a37c 58
chaithanyarss 0:83e597a2a37c 59 int cmd(int, int);
chaithanyarss 0:83e597a2a37c 60 int cmd58();
chaithanyarss 0:83e597a2a37c 61 int cmdx(int, int);
chaithanyarss 0:83e597a2a37c 62 int cmd8();
chaithanyarss 0:83e597a2a37c 63 int read(uint8_t*, uint32_t );
chaithanyarss 0:83e597a2a37c 64 int write(const uint8_t*, uint32_t );
chaithanyarss 0:83e597a2a37c 65 static uint32_t ext_bits(unsigned char *, int , int );
chaithanyarss 0:83e597a2a37c 66 int SD_WRITE(uint8_t*,uint32_t,uint8_t);
chaithanyarss 0:83e597a2a37c 67 int FCTN_CDMS_SD_INIT();
chaithanyarss 0:83e597a2a37c 68 uint8_t SD_READ(uint8_t*,uint32_t,uint8_t);
chaithanyarss 0:83e597a2a37c 69 #define SDCARD_FAIL 0
chaithanyarss 0:83e597a2a37c 70 #define SDCARD_V1 1
chaithanyarss 0:83e597a2a37c 71 #define SDCARD_V2 2
chaithanyarss 0:83e597a2a37c 72 #define SDCARD_V2HC 3
chaithanyarss 0:83e597a2a37c 73
chaithanyarss 0:83e597a2a37c 74 int cdv;
chaithanyarss 0:83e597a2a37c 75 uint64_t sd_sectors();
chaithanyarss 0:83e597a2a37c 76 uint64_t sectors;
chaithanyarss 0:83e597a2a37c 77
chaithanyarss 0:83e597a2a37c 78 int FCTN_CDMS_SD_INIT()
chaithanyarss 0:83e597a2a37c 79 {
chaithanyarss 1:231e99f73b19 80 SD_SW_EN_DS = 0;
chaithanyarss 1:231e99f73b19 81 wait_ms(10);
chaithanyarss 1:231e99f73b19 82 SD_SW_EN_DS = 1;
chaithanyarss 1:231e99f73b19 83 wait_ms(10);
chaithanyarss 0:83e597a2a37c 84 int i = initialise_card();
chaithanyarss 0:83e597a2a37c 85 //debug_if(SD_DBG, "init card = %d\n", i);
chaithanyarss 0:83e597a2a37c 86 sectors = sd_sectors();
chaithanyarss 0:83e597a2a37c 87
chaithanyarss 0:83e597a2a37c 88 // Set block length to 512 (CMD16)
chaithanyarss 0:83e597a2a37c 89 if (cmd(16, 512) != 0) {
chaithanyarss 0:83e597a2a37c 90 //debug("\rSet 512-byte block timed out\r\n");
chaithanyarss 0:83e597a2a37c 91 return 1;
chaithanyarss 0:83e597a2a37c 92 } else {
chaithanyarss 0:83e597a2a37c 93 //printf("\rDisk initialization successfull\r\n");
chaithanyarss 0:83e597a2a37c 94 }
chaithanyarss 0:83e597a2a37c 95
chaithanyarss 1:231e99f73b19 96 spi.frequency(500000); // Set to 1MHz for data transfer
chaithanyarss 0:83e597a2a37c 97 return 0;
chaithanyarss 0:83e597a2a37c 98 }
chaithanyarss 0:83e597a2a37c 99
chaithanyarss 0:83e597a2a37c 100 void FCTN_SD_MNGR()
chaithanyarss 0:83e597a2a37c 101 {
chaithanyarss 0:83e597a2a37c 102 uint32_t fsc;
chaithanyarss 0:83e597a2a37c 103 uint32_t start_fsc;
chaithanyarss 0:83e597a2a37c 104 uint8_t buffer[512];
chaithanyarss 1:231e99f73b19 105 gPC.printf("Reached SD_MNG func");
chaithanyarss 0:83e597a2a37c 106 int b=disk_read(buffer, SD_MNG_SECT);
chaithanyarss 0:83e597a2a37c 107
chaithanyarss 0:83e597a2a37c 108 fsc=(uint32_t)(buffer[0]<<24)+(uint32_t)(buffer[1]<<16)+(uint32_t)(buffer[2]<<8)+(uint32_t)buffer[3];
chaithanyarss 0:83e597a2a37c 109 start_fsc=(uint32_t)(buffer[4]<<24)+(uint32_t)(buffer[5]<<16)+(uint32_t)(buffer[6]<<8)+(uint32_t)buffer[7];
chaithanyarss 0:83e597a2a37c 110 FSC_CURRENT[1] = fsc;
chaithanyarss 0:83e597a2a37c 111 FSC_LAST[1] = start_fsc;
chaithanyarss 0:83e597a2a37c 112
chaithanyarss 0:83e597a2a37c 113 fsc=(uint32_t)(buffer[8]<<24)+(uint32_t)(buffer[9]<<16)+(uint32_t)(buffer[10]<<8)+(uint32_t)buffer[11];
chaithanyarss 0:83e597a2a37c 114 start_fsc=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15];
chaithanyarss 0:83e597a2a37c 115 FSC_CURRENT[2] = fsc;
chaithanyarss 0:83e597a2a37c 116 FSC_LAST[2] = start_fsc;
chaithanyarss 0:83e597a2a37c 117
chaithanyarss 0:83e597a2a37c 118 fsc=(uint32_t)(buffer[16]<<24)+(uint32_t)(buffer[17]<<16)+(uint32_t)(buffer[18]<<8)+(uint32_t)buffer[19];
chaithanyarss 0:83e597a2a37c 119 start_fsc=(uint32_t)(buffer[20]<<24)+(uint32_t)(buffer[21]<<16)+(uint32_t)(buffer[22]<<8)+(uint32_t)buffer[23];
chaithanyarss 0:83e597a2a37c 120 FSC_CURRENT[3] = fsc;
chaithanyarss 0:83e597a2a37c 121 FSC_LAST[3] = start_fsc;
chaithanyarss 0:83e597a2a37c 122
chaithanyarss 0:83e597a2a37c 123 fsc=(uint32_t)(buffer[24]<<24)+(uint32_t)(buffer[25]<<16)+(uint32_t)(buffer[26]<<8)+(uint32_t)buffer[27];
chaithanyarss 0:83e597a2a37c 124 start_fsc=(uint32_t)(buffer[28]<<24)+(uint32_t)(buffer[29]<<16)+(uint32_t)(buffer[30]<<8)+(uint32_t)buffer[31];
chaithanyarss 0:83e597a2a37c 125 FSC_CURRENT[4] = fsc;
chaithanyarss 0:83e597a2a37c 126 FSC_LAST[4] = start_fsc;
chaithanyarss 0:83e597a2a37c 127
chaithanyarss 0:83e597a2a37c 128 fsc=(uint32_t)(buffer[32]<<24)+(uint32_t)(buffer[33]<<16)+(uint32_t)(buffer[34]<<8)+(uint32_t)buffer[35];
chaithanyarss 0:83e597a2a37c 129 start_fsc=(uint32_t)(buffer[36]<<24)+(uint32_t)(buffer[37]<<16)+(uint32_t)(buffer[38]<<8)+(uint32_t)buffer[39];
chaithanyarss 0:83e597a2a37c 130 FSC_CURRENT[5] = fsc;
chaithanyarss 0:83e597a2a37c 131 FSC_LAST[5] = start_fsc;
chaithanyarss 0:83e597a2a37c 132 }
chaithanyarss 0:83e597a2a37c 133
chaithanyarss 0:83e597a2a37c 134 int INCREMENT_SD_LIB(uint8_t sid)
chaithanyarss 0:83e597a2a37c 135 {
chaithanyarss 0:83e597a2a37c 136 uint32_t fsc;
chaithanyarss 0:83e597a2a37c 137 uint32_t start_fsc;
chaithanyarss 0:83e597a2a37c 138 int i;
chaithanyarss 0:83e597a2a37c 139 uint8_t buffer[512];
chaithanyarss 0:83e597a2a37c 140 SD_MNG_SECT += SD_LIB_WRITES/(int)0xFFFF;
chaithanyarss 0:83e597a2a37c 141 SD_LIB_WRITES = SD_LIB_WRITES%(int)0xFFFF;
chaithanyarss 0:83e597a2a37c 142 disk_read(buffer,SD_MNG_SECT);
chaithanyarss 0:83e597a2a37c 143 if(sid==0x01)
chaithanyarss 0:83e597a2a37c 144 {
chaithanyarss 0:83e597a2a37c 145 fsc=(uint32_t)(buffer[0]<<24)+(uint32_t)(buffer[1]<<16)+(uint32_t)(buffer[2]<<8)+(uint32_t)buffer[3];
chaithanyarss 0:83e597a2a37c 146 start_fsc=(uint32_t)(buffer[4]<<24)+(uint32_t)(buffer[5]<<16)+(uint32_t)(buffer[6]<<8)+(uint32_t)buffer[7];
chaithanyarss 0:83e597a2a37c 147 fsc++;
chaithanyarss 0:83e597a2a37c 148 buffer[0]=(uint8_t) (fsc>>24 & 0xFF);
chaithanyarss 0:83e597a2a37c 149 buffer[1]=(uint8_t) (fsc>>16 & 0xFF);
chaithanyarss 0:83e597a2a37c 150 buffer[2]=(uint8_t) (fsc>>8 & 0xFF);
chaithanyarss 0:83e597a2a37c 151 buffer[3]=(uint8_t) (fsc & 0xFF);
chaithanyarss 0:83e597a2a37c 152 if(fsc > SD_SCP_LAST-SD_SCP_FIRST+1)
chaithanyarss 0:83e597a2a37c 153 {
chaithanyarss 0:83e597a2a37c 154 start_fsc = start_fsc+1;
chaithanyarss 0:83e597a2a37c 155 buffer[4]=(uint8_t) (start_fsc>>24 & 0xFF);
chaithanyarss 0:83e597a2a37c 156 buffer[5]=(uint8_t) (start_fsc>>16 & 0xFF);
chaithanyarss 0:83e597a2a37c 157 buffer[6]=(uint8_t) (start_fsc>>8 & 0xFF);
chaithanyarss 0:83e597a2a37c 158 buffer[7]=(uint8_t) (start_fsc & 0xFF);
chaithanyarss 0:83e597a2a37c 159 }
chaithanyarss 0:83e597a2a37c 160
chaithanyarss 0:83e597a2a37c 161 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 0:83e597a2a37c 162 if(i == 0)
chaithanyarss 0:83e597a2a37c 163 {
chaithanyarss 0:83e597a2a37c 164 FSC_CURRENT[1] = fsc;
chaithanyarss 0:83e597a2a37c 165 FSC_LAST[1] = start_fsc;
chaithanyarss 0:83e597a2a37c 166 return i;
chaithanyarss 0:83e597a2a37c 167 }
chaithanyarss 0:83e597a2a37c 168 }
chaithanyarss 0:83e597a2a37c 169 if(sid==0x02)
chaithanyarss 0:83e597a2a37c 170 {
chaithanyarss 0:83e597a2a37c 171 fsc=(uint32_t)(buffer[8]<<24)+(uint32_t)(buffer[9]<<16)+(uint32_t)(buffer[10]<<8)+(uint32_t)buffer[11];
chaithanyarss 0:83e597a2a37c 172 start_fsc=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15];
chaithanyarss 0:83e597a2a37c 173 fsc++;
chaithanyarss 0:83e597a2a37c 174 buffer[8]=(uint8_t) (fsc>>24 & 0xFF);
chaithanyarss 0:83e597a2a37c 175 buffer[9]=(uint8_t) (fsc>>16 & 0xFF);
chaithanyarss 0:83e597a2a37c 176 buffer[10]=(uint8_t) (fsc>>8 & 0xFF);
chaithanyarss 0:83e597a2a37c 177 buffer[11]=(uint8_t) (fsc & 0xFF);
chaithanyarss 0:83e597a2a37c 178 if(fsc > SD_SFF_AT_LAST-SD_SFF_AT_FIRST+1)
chaithanyarss 0:83e597a2a37c 179 {
chaithanyarss 0:83e597a2a37c 180 start_fsc = start_fsc+1;
chaithanyarss 0:83e597a2a37c 181 buffer[12]=(uint8_t) (start_fsc>>24 & 0xFF);
chaithanyarss 0:83e597a2a37c 182 buffer[13]=(uint8_t) (start_fsc>>16 & 0xFF);
chaithanyarss 0:83e597a2a37c 183 buffer[14]=(uint8_t) (start_fsc>>8 & 0xFF);
chaithanyarss 0:83e597a2a37c 184 buffer[15]=(uint8_t) (start_fsc & 0xFF);
chaithanyarss 0:83e597a2a37c 185 }
chaithanyarss 0:83e597a2a37c 186 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 0:83e597a2a37c 187 if(i == 0)
chaithanyarss 0:83e597a2a37c 188 {
chaithanyarss 0:83e597a2a37c 189 FSC_CURRENT[2] = fsc;
chaithanyarss 0:83e597a2a37c 190 FSC_LAST[2] = start_fsc;
chaithanyarss 0:83e597a2a37c 191 return i;
chaithanyarss 0:83e597a2a37c 192 }
chaithanyarss 0:83e597a2a37c 193 }
chaithanyarss 0:83e597a2a37c 194 if(sid==0x03)
chaithanyarss 0:83e597a2a37c 195 {
chaithanyarss 0:83e597a2a37c 196 fsc=(uint32_t)(buffer[16]<<24)+(uint32_t)(buffer[17]<<16)+(uint32_t)(buffer[18]<<8)+(uint32_t)buffer[19];
chaithanyarss 0:83e597a2a37c 197 start_fsc=(uint32_t)(buffer[20]<<24)+(uint32_t)(buffer[21]<<16)+(uint32_t)(buffer[22]<<8)+(uint32_t)buffer[23];
chaithanyarss 0:83e597a2a37c 198 fsc++;
chaithanyarss 0:83e597a2a37c 199 buffer[16]=(uint8_t) (fsc>>24 & 0xFF);
chaithanyarss 0:83e597a2a37c 200 buffer[17]=(uint8_t) (fsc>>16 & 0xFF);
chaithanyarss 0:83e597a2a37c 201 buffer[18]=(uint8_t) (fsc>>8 & 0xFF);
chaithanyarss 0:83e597a2a37c 202 buffer[19]=(uint8_t) (fsc & 0xFF);
chaithanyarss 0:83e597a2a37c 203 if(fsc > SD_SFF_BT_LAST-SD_SFF_BT_FIRST+1)
chaithanyarss 0:83e597a2a37c 204 {
chaithanyarss 0:83e597a2a37c 205 start_fsc = start_fsc+1;
chaithanyarss 0:83e597a2a37c 206 buffer[20]=(uint8_t) (start_fsc>>24 & 0xFF);
chaithanyarss 0:83e597a2a37c 207 buffer[21]=(uint8_t) (start_fsc>>16 & 0xFF);
chaithanyarss 0:83e597a2a37c 208 buffer[22]=(uint8_t) (start_fsc>>8 & 0xFF);
chaithanyarss 0:83e597a2a37c 209 buffer[23]=(uint8_t) (start_fsc & 0xFF);
chaithanyarss 0:83e597a2a37c 210 }
chaithanyarss 0:83e597a2a37c 211 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 0:83e597a2a37c 212 if(i == 0)
chaithanyarss 0:83e597a2a37c 213 {
chaithanyarss 0:83e597a2a37c 214 FSC_CURRENT[3] = fsc;
chaithanyarss 0:83e597a2a37c 215 FSC_LAST[3] = start_fsc;
chaithanyarss 0:83e597a2a37c 216 return i;
chaithanyarss 0:83e597a2a37c 217 }
chaithanyarss 0:83e597a2a37c 218 }
chaithanyarss 0:83e597a2a37c 219 if(sid==0x04)
chaithanyarss 0:83e597a2a37c 220 {
chaithanyarss 0:83e597a2a37c 221 fsc=(uint32_t)(buffer[24]<<24)+(uint32_t)(buffer[25]<<16)+(uint32_t)(buffer[26]<<8)+(uint32_t)buffer[27];
chaithanyarss 0:83e597a2a37c 222 start_fsc=(uint32_t)(buffer[28]<<24)+(uint32_t)(buffer[29]<<16)+(uint32_t)(buffer[30]<<8)+(uint32_t)buffer[31];
chaithanyarss 0:83e597a2a37c 223 fsc++;
chaithanyarss 0:83e597a2a37c 224 buffer[24]=(uint8_t) (fsc>>24 & 0xFF);
chaithanyarss 0:83e597a2a37c 225 buffer[25]=(uint8_t) (fsc>>16 & 0xFF);
chaithanyarss 0:83e597a2a37c 226 buffer[26]=(uint8_t) (fsc>>8 & 0xFF);
chaithanyarss 0:83e597a2a37c 227 buffer[27]=(uint8_t) (fsc & 0xFF);
chaithanyarss 0:83e597a2a37c 228 if(fsc > SD_HK_ARCH_LAST-SD_HK_ARCH_FIRST+1)
chaithanyarss 0:83e597a2a37c 229 {
chaithanyarss 0:83e597a2a37c 230 start_fsc = start_fsc+1;
chaithanyarss 0:83e597a2a37c 231 buffer[28]=(uint8_t) (start_fsc>>24 & 0xFF);
chaithanyarss 0:83e597a2a37c 232 buffer[29]=(uint8_t) (start_fsc>>16 & 0xFF);
chaithanyarss 0:83e597a2a37c 233 buffer[30]=(uint8_t) (start_fsc>>8 & 0xFF);
chaithanyarss 0:83e597a2a37c 234 buffer[31]=(uint8_t) (start_fsc & 0xFF);
chaithanyarss 0:83e597a2a37c 235 }
chaithanyarss 0:83e597a2a37c 236 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 0:83e597a2a37c 237 if(i == 0)
chaithanyarss 0:83e597a2a37c 238 {
chaithanyarss 0:83e597a2a37c 239 FSC_CURRENT[4] = fsc;
chaithanyarss 0:83e597a2a37c 240 FSC_LAST[4] = start_fsc;
chaithanyarss 0:83e597a2a37c 241 return i;
chaithanyarss 0:83e597a2a37c 242 }
chaithanyarss 0:83e597a2a37c 243 }
chaithanyarss 0:83e597a2a37c 244 if(sid==0x05)
chaithanyarss 0:83e597a2a37c 245 {
chaithanyarss 0:83e597a2a37c 246 fsc=(uint32_t)(buffer[32]<<24)+(uint32_t)(buffer[33]<<16)+(uint32_t)(buffer[34]<<8)+(uint32_t)buffer[35];
chaithanyarss 0:83e597a2a37c 247 start_fsc=(uint32_t)(buffer[36]<<24)+(uint32_t)(buffer[37]<<16)+(uint32_t)(buffer[38]<<8)+(uint32_t)buffer[39];
chaithanyarss 0:83e597a2a37c 248 fsc++;
chaithanyarss 0:83e597a2a37c 249 buffer[32]=(uint8_t) (fsc>>24 & 0xFF);
chaithanyarss 0:83e597a2a37c 250 buffer[33]=(uint8_t) (fsc>>16 & 0xFF);
chaithanyarss 0:83e597a2a37c 251 buffer[34]=(uint8_t) (fsc>>8 & 0xFF);
chaithanyarss 0:83e597a2a37c 252 buffer[35]=(uint8_t) (fsc & 0xFF);
chaithanyarss 0:83e597a2a37c 253 if(fsc > LOG_LAST-LOG_FIRST+1)
chaithanyarss 0:83e597a2a37c 254 {
chaithanyarss 0:83e597a2a37c 255 start_fsc = start_fsc+1;
chaithanyarss 0:83e597a2a37c 256 buffer[36]=(uint8_t) (start_fsc>>24 & 0xFF);
chaithanyarss 0:83e597a2a37c 257 buffer[37]=(uint8_t) (start_fsc>>16 & 0xFF);
chaithanyarss 0:83e597a2a37c 258 buffer[38]=(uint8_t) (start_fsc>>8 & 0xFF);
chaithanyarss 0:83e597a2a37c 259 buffer[39]=(uint8_t) (start_fsc & 0xFF);
chaithanyarss 0:83e597a2a37c 260 }
chaithanyarss 0:83e597a2a37c 261 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 0:83e597a2a37c 262 if(i == 0)
chaithanyarss 0:83e597a2a37c 263 {
chaithanyarss 0:83e597a2a37c 264 FSC_CURRENT[5] = fsc;
chaithanyarss 0:83e597a2a37c 265 FSC_LAST[5] = start_fsc;
chaithanyarss 0:83e597a2a37c 266 return i;
chaithanyarss 0:83e597a2a37c 267 }
chaithanyarss 0:83e597a2a37c 268 }
chaithanyarss 0:83e597a2a37c 269 return -1;
chaithanyarss 0:83e597a2a37c 270 }
chaithanyarss 0:83e597a2a37c 271
chaithanyarss 0:83e597a2a37c 272
chaithanyarss 0:83e597a2a37c 273 int SD_WRITE(uint8_t* buffer,uint32_t fsc,uint8_t sid)
chaithanyarss 0:83e597a2a37c 274 {
chaithanyarss 0:83e597a2a37c 275 uint32_t block_number;
chaithanyarss 0:83e597a2a37c 276 int result = 10;
chaithanyarss 0:83e597a2a37c 277 if(sid==0x01)
chaithanyarss 0:83e597a2a37c 278 {
chaithanyarss 0:83e597a2a37c 279 //block_number=SD_SCP_FIRST+(fsc%(SD_SCP_LAST-SD_SCP_FIRST+1))-1;
chaithanyarss 0:83e597a2a37c 280 block_number=SD_SCP_FIRST+fsc;
chaithanyarss 0:83e597a2a37c 281 result= disk_write(buffer,block_number);
chaithanyarss 0:83e597a2a37c 282 if(result == 0)
chaithanyarss 0:83e597a2a37c 283 {
chaithanyarss 0:83e597a2a37c 284 if(INCREMENT_SD_LIB(sid) == 0)
chaithanyarss 0:83e597a2a37c 285 SD_LIB_WRITES++;
chaithanyarss 0:83e597a2a37c 286 }
chaithanyarss 0:83e597a2a37c 287 return result;
chaithanyarss 0:83e597a2a37c 288 }
chaithanyarss 0:83e597a2a37c 289 if(sid==0x02)
chaithanyarss 0:83e597a2a37c 290 {
chaithanyarss 0:83e597a2a37c 291 //block_number= SD_SFF_AT_FIRST+(fsc%(SD_SFF_AT_LAST - SD_SFF_AT_FIRST+1))-1;
chaithanyarss 0:83e597a2a37c 292 block_number= SD_SFF_AT_FIRST+fsc;
chaithanyarss 0:83e597a2a37c 293 result= disk_write(buffer,block_number);
chaithanyarss 0:83e597a2a37c 294 if(result == 0)
chaithanyarss 0:83e597a2a37c 295 {
chaithanyarss 0:83e597a2a37c 296 if(INCREMENT_SD_LIB(sid) == 0)
chaithanyarss 0:83e597a2a37c 297 SD_LIB_WRITES++;
chaithanyarss 0:83e597a2a37c 298 }
chaithanyarss 0:83e597a2a37c 299 return result;
chaithanyarss 0:83e597a2a37c 300 }
chaithanyarss 0:83e597a2a37c 301 if(sid==0x03)
chaithanyarss 0:83e597a2a37c 302 {
chaithanyarss 0:83e597a2a37c 303 //block_number= SD_SFF_BT_FIRST +(fsc%(SD_SFF_BT_LAST - SD_SFF_BT_FIRST +1))-1;
chaithanyarss 0:83e597a2a37c 304 block_number= SD_SFF_BT_FIRST +fsc;
chaithanyarss 0:83e597a2a37c 305 result= disk_write(buffer,block_number);
chaithanyarss 0:83e597a2a37c 306 if(result == 0)
chaithanyarss 0:83e597a2a37c 307 {
chaithanyarss 0:83e597a2a37c 308 if(INCREMENT_SD_LIB(sid) == 0)
chaithanyarss 0:83e597a2a37c 309 SD_LIB_WRITES++;
chaithanyarss 0:83e597a2a37c 310 }
chaithanyarss 0:83e597a2a37c 311 return result;
chaithanyarss 0:83e597a2a37c 312 }
chaithanyarss 0:83e597a2a37c 313 if(sid==0x04)
chaithanyarss 0:83e597a2a37c 314 {
chaithanyarss 0:83e597a2a37c 315 //block_number=SD_HK_ARCH_FIRST +(fsc%(SD_HK_ARCH_LAST - SD_HK_ARCH_FIRST +1))-1;
chaithanyarss 0:83e597a2a37c 316 block_number=SD_HK_ARCH_FIRST +fsc;
chaithanyarss 0:83e597a2a37c 317 result= disk_write(buffer,block_number);
chaithanyarss 0:83e597a2a37c 318 if(result == 0)
chaithanyarss 0:83e597a2a37c 319 {
chaithanyarss 0:83e597a2a37c 320 if(INCREMENT_SD_LIB(sid) == 0)
chaithanyarss 0:83e597a2a37c 321 SD_LIB_WRITES++;
chaithanyarss 0:83e597a2a37c 322 }
chaithanyarss 0:83e597a2a37c 323 return result;
chaithanyarss 0:83e597a2a37c 324 }
chaithanyarss 0:83e597a2a37c 325 if(sid==0x05)
chaithanyarss 0:83e597a2a37c 326 {
chaithanyarss 0:83e597a2a37c 327 //block_number= LOG_FIRST +(fsc%(LOG_FIRST - LOG_FIRST +1))-1;
chaithanyarss 0:83e597a2a37c 328 block_number= LOG_FIRST +fsc;
chaithanyarss 0:83e597a2a37c 329 result= disk_write(buffer,block_number);
chaithanyarss 0:83e597a2a37c 330 if(result == 0)
chaithanyarss 0:83e597a2a37c 331 {
chaithanyarss 0:83e597a2a37c 332 if(INCREMENT_SD_LIB(sid) == 0)
chaithanyarss 0:83e597a2a37c 333 SD_LIB_WRITES++;
chaithanyarss 0:83e597a2a37c 334 }
chaithanyarss 0:83e597a2a37c 335 return result;
chaithanyarss 0:83e597a2a37c 336 }
chaithanyarss 0:83e597a2a37c 337 return 1;
chaithanyarss 0:83e597a2a37c 338 }
chaithanyarss 0:83e597a2a37c 339
chaithanyarss 0:83e597a2a37c 340 uint8_t SD_READ(uint8_t* buffer,uint32_t fsc,uint8_t sid)
chaithanyarss 0:83e597a2a37c 341 {
chaithanyarss 0:83e597a2a37c 342 FCTN_SD_MNGR();
chaithanyarss 0:83e597a2a37c 343 uint32_t block_number;
chaithanyarss 0:83e597a2a37c 344 int result;
chaithanyarss 0:83e597a2a37c 345 /*if(SD_SW_EN_DS == 1)
chaithanyarss 0:83e597a2a37c 346 return 0x89;*/
chaithanyarss 0:83e597a2a37c 347 if(sid==0x01)
chaithanyarss 0:83e597a2a37c 348 {
chaithanyarss 0:83e597a2a37c 349 if(!(FSC_LAST[1]<=fsc && fsc<=FSC_CURRENT[1])){
chaithanyarss 0:83e597a2a37c 350 return 0x86;
chaithanyarss 0:83e597a2a37c 351 }
chaithanyarss 0:83e597a2a37c 352 block_number=SD_SCP_FIRST + fsc;
chaithanyarss 0:83e597a2a37c 353 result= disk_read(buffer,block_number);
chaithanyarss 0:83e597a2a37c 354 }
chaithanyarss 0:83e597a2a37c 355 else if(sid==0x02)
chaithanyarss 0:83e597a2a37c 356 {
chaithanyarss 0:83e597a2a37c 357 if(!(FSC_LAST[2]<=fsc && fsc<=FSC_CURRENT[2])){
chaithanyarss 0:83e597a2a37c 358 return 0x86;
chaithanyarss 0:83e597a2a37c 359 }
chaithanyarss 0:83e597a2a37c 360 block_number=SD_SFF_AT_FIRST + fsc;
chaithanyarss 0:83e597a2a37c 361 result= disk_read(buffer,block_number);
chaithanyarss 0:83e597a2a37c 362 }
chaithanyarss 0:83e597a2a37c 363 else if(sid==0x03)
chaithanyarss 0:83e597a2a37c 364 {
chaithanyarss 0:83e597a2a37c 365 if(!(FSC_LAST[3]<=fsc && fsc<=FSC_CURRENT[3])){
chaithanyarss 0:83e597a2a37c 366 return 0x86;
chaithanyarss 0:83e597a2a37c 367 }
chaithanyarss 0:83e597a2a37c 368 block_number=SD_SFF_BT_FIRST + fsc;
chaithanyarss 0:83e597a2a37c 369 result= disk_read(buffer,block_number);
chaithanyarss 0:83e597a2a37c 370 }
chaithanyarss 0:83e597a2a37c 371 else if(sid==0x04)
chaithanyarss 0:83e597a2a37c 372 {
chaithanyarss 0:83e597a2a37c 373 if(!(FSC_LAST[4]<=fsc && fsc<=FSC_CURRENT[4])){
chaithanyarss 0:83e597a2a37c 374 return 0x86;
chaithanyarss 0:83e597a2a37c 375 }
chaithanyarss 0:83e597a2a37c 376 block_number=SD_HK_ARCH_FIRST + fsc;
chaithanyarss 0:83e597a2a37c 377 result= disk_read(buffer,block_number);
chaithanyarss 0:83e597a2a37c 378 }
chaithanyarss 0:83e597a2a37c 379 else if(sid==0x05)
chaithanyarss 0:83e597a2a37c 380 {
chaithanyarss 0:83e597a2a37c 381 if(!(FSC_LAST[5]<=fsc && fsc<=FSC_CURRENT[5])){
chaithanyarss 0:83e597a2a37c 382 return 0x86;
chaithanyarss 0:83e597a2a37c 383 }
chaithanyarss 0:83e597a2a37c 384 block_number=LOG_FIRST +fsc;
chaithanyarss 0:83e597a2a37c 385 result= disk_read(buffer,block_number);
chaithanyarss 0:83e597a2a37c 386 }
chaithanyarss 0:83e597a2a37c 387 else
chaithanyarss 0:83e597a2a37c 388 {
chaithanyarss 0:83e597a2a37c 389 return 0x02;
chaithanyarss 0:83e597a2a37c 390 }
chaithanyarss 0:83e597a2a37c 391 if(result == 0)
chaithanyarss 0:83e597a2a37c 392 return 0xA0;
chaithanyarss 0:83e597a2a37c 393 else
chaithanyarss 0:83e597a2a37c 394 return 0x88;
chaithanyarss 0:83e597a2a37c 395 }
chaithanyarss 0:83e597a2a37c 396
chaithanyarss 0:83e597a2a37c 397
chaithanyarss 0:83e597a2a37c 398 int initialise_card()
chaithanyarss 0:83e597a2a37c 399 {
chaithanyarss 0:83e597a2a37c 400 // Set to 100kHz for initialisation, and clock card with cs_sd = 1
chaithanyarss 0:83e597a2a37c 401 spi.frequency(100000); // changed on 31 12 2015 to 1 MHz
chaithanyarss 0:83e597a2a37c 402 cs_sd = 1;
chaithanyarss 0:83e597a2a37c 403 for (int i = 0; i < 16; i++) {
chaithanyarss 0:83e597a2a37c 404 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 405 }
chaithanyarss 0:83e597a2a37c 406 uint8_t R1_response = cmd(0,0);
chaithanyarss 0:83e597a2a37c 407 gPC.printf("0x%02X",R1_response);
chaithanyarss 0:83e597a2a37c 408 // send CMD0, should return with all zeros except IDLE STATE set (bit 0)
chaithanyarss 0:83e597a2a37c 409 if (R1_response != R1_IDLE_STATE) {
chaithanyarss 1:231e99f73b19 410 gPC.printf("No disk, or could not put SD card in to spi idle state\r");
chaithanyarss 0:83e597a2a37c 411 CDMS_LED3 = 1;
chaithanyarss 0:83e597a2a37c 412 return SDCARD_FAIL;
chaithanyarss 0:83e597a2a37c 413 }
chaithanyarss 0:83e597a2a37c 414 else
chaithanyarss 0:83e597a2a37c 415 CDMS_LED2 =1;
chaithanyarss 0:83e597a2a37c 416
chaithanyarss 0:83e597a2a37c 417 // send CMD8 to determine whther it is ver 2.x
chaithanyarss 0:83e597a2a37c 418 int r = cmd8();
chaithanyarss 0:83e597a2a37c 419 if (r == R1_IDLE_STATE) {
chaithanyarss 1:231e99f73b19 420 //gPC.puts("Entering V2\n");
chaithanyarss 0:83e597a2a37c 421 int q = initialise_card_v2();
chaithanyarss 0:83e597a2a37c 422 return q;
chaithanyarss 0:83e597a2a37c 423
chaithanyarss 0:83e597a2a37c 424 } else if (r == (R1_IDLE_STATE | R1_ILLEGAL_COMMAND)) {
chaithanyarss 1:231e99f73b19 425 gPC.puts("Entering V1\n");
chaithanyarss 0:83e597a2a37c 426 return initialise_card_v1();
chaithanyarss 0:83e597a2a37c 427
chaithanyarss 0:83e597a2a37c 428 } else {
chaithanyarss 0:83e597a2a37c 429 //debug("\rNot in idle state after sending CMD8 (not an SD card?)\r\n");
chaithanyarss 0:83e597a2a37c 430 return SDCARD_FAIL;
chaithanyarss 0:83e597a2a37c 431 }
chaithanyarss 0:83e597a2a37c 432 }
chaithanyarss 0:83e597a2a37c 433
chaithanyarss 0:83e597a2a37c 434 int initialise_card_v1()
chaithanyarss 0:83e597a2a37c 435 {
chaithanyarss 0:83e597a2a37c 436 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
chaithanyarss 0:83e597a2a37c 437 cmd(55, 0);
chaithanyarss 0:83e597a2a37c 438 if (cmd(41, 0) == 0) {
chaithanyarss 1:231e99f73b19 439 gPC.puts("\rv1 initialization successfull\n");
chaithanyarss 0:83e597a2a37c 440 cdv = 512;
chaithanyarss 0:83e597a2a37c 441 //debug_if(SD_DBG, "\n\rInit: SEDCARD_V1\n\r");
chaithanyarss 0:83e597a2a37c 442
chaithanyarss 0:83e597a2a37c 443 return SDCARD_V1;
chaithanyarss 0:83e597a2a37c 444 }
chaithanyarss 0:83e597a2a37c 445 }
chaithanyarss 0:83e597a2a37c 446
chaithanyarss 0:83e597a2a37c 447 //debug("\rTimeout waiting for v1.x card\r\n");
chaithanyarss 0:83e597a2a37c 448 return SDCARD_FAIL;
chaithanyarss 0:83e597a2a37c 449 }
chaithanyarss 0:83e597a2a37c 450
chaithanyarss 0:83e597a2a37c 451
chaithanyarss 0:83e597a2a37c 452 int initialise_card_v2()
chaithanyarss 0:83e597a2a37c 453 {
chaithanyarss 0:83e597a2a37c 454 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
chaithanyarss 0:83e597a2a37c 455 wait_ms(50);
chaithanyarss 0:83e597a2a37c 456 cmd58();
chaithanyarss 0:83e597a2a37c 457 cmd(55, 0);
chaithanyarss 0:83e597a2a37c 458 if (cmd(41, 0x40000000) == 0) {
chaithanyarss 1:231e99f73b19 459
chaithanyarss 0:83e597a2a37c 460 // if (DEBUG)
chaithanyarss 1:231e99f73b19 461 gPC.puts("v2 initialization successfull\n");
chaithanyarss 0:83e597a2a37c 462 CDMS_LED3 =1;
chaithanyarss 0:83e597a2a37c 463 cmd58();
chaithanyarss 0:83e597a2a37c 464 //debug_if(SD_DBG, "\n\rInit: SDCARD_V2\n\r");
chaithanyarss 0:83e597a2a37c 465 cdv = 1;
chaithanyarss 0:83e597a2a37c 466 return SDCARD_V2;
chaithanyarss 0:83e597a2a37c 467 }
chaithanyarss 0:83e597a2a37c 468 }
chaithanyarss 0:83e597a2a37c 469
chaithanyarss 0:83e597a2a37c 470 //debug("\rTimeout waiting for v2.x card\r\n");
chaithanyarss 0:83e597a2a37c 471 return SDCARD_FAIL;
chaithanyarss 0:83e597a2a37c 472 }
chaithanyarss 0:83e597a2a37c 473
chaithanyarss 0:83e597a2a37c 474 int cmd(int cmd, int arg)
chaithanyarss 0:83e597a2a37c 475 {
chaithanyarss 0:83e597a2a37c 476 cs_sd = 0;
chaithanyarss 0:83e597a2a37c 477
chaithanyarss 0:83e597a2a37c 478 // send a command
chaithanyarss 0:83e597a2a37c 479 spi.write(0x40 | cmd);
chaithanyarss 0:83e597a2a37c 480 spi.write(arg >> 24);
chaithanyarss 0:83e597a2a37c 481 spi.write(arg >> 16);
chaithanyarss 0:83e597a2a37c 482 spi.write(arg >> 8);
chaithanyarss 0:83e597a2a37c 483 spi.write(arg >> 0);
chaithanyarss 0:83e597a2a37c 484 spi.write(0x95);
chaithanyarss 0:83e597a2a37c 485
chaithanyarss 0:83e597a2a37c 486 // wait for the repsonse (response[7] == 0)
chaithanyarss 0:83e597a2a37c 487 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
chaithanyarss 0:83e597a2a37c 488 int response = spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 489 if (!(response & 0x80)) {
chaithanyarss 0:83e597a2a37c 490 cs_sd = 1;
chaithanyarss 0:83e597a2a37c 491 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 492 return response;
chaithanyarss 0:83e597a2a37c 493 }
chaithanyarss 0:83e597a2a37c 494 }
chaithanyarss 0:83e597a2a37c 495 cs_sd = 1;
chaithanyarss 0:83e597a2a37c 496 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 497 return -1; // timeout
chaithanyarss 0:83e597a2a37c 498 }
chaithanyarss 0:83e597a2a37c 499
chaithanyarss 0:83e597a2a37c 500
chaithanyarss 0:83e597a2a37c 501 int cmd58()
chaithanyarss 0:83e597a2a37c 502 {
chaithanyarss 0:83e597a2a37c 503 cs_sd = 0;
chaithanyarss 0:83e597a2a37c 504 int arg = 0;
chaithanyarss 0:83e597a2a37c 505
chaithanyarss 0:83e597a2a37c 506 // send a command
chaithanyarss 0:83e597a2a37c 507 spi.write(0x40 | 58);
chaithanyarss 0:83e597a2a37c 508 spi.write(arg >> 24);
chaithanyarss 0:83e597a2a37c 509 spi.write(arg >> 16);
chaithanyarss 0:83e597a2a37c 510 spi.write(arg >> 8);
chaithanyarss 0:83e597a2a37c 511 spi.write(arg >> 0);
chaithanyarss 0:83e597a2a37c 512 spi.write(0x95);
chaithanyarss 0:83e597a2a37c 513
chaithanyarss 0:83e597a2a37c 514 // wait for the repsonse (response[7] == 0)
chaithanyarss 0:83e597a2a37c 515 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
chaithanyarss 0:83e597a2a37c 516 int response = spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 517 if (!(response & 0x80)) {
chaithanyarss 0:83e597a2a37c 518 int ocr = spi.write(0xFF) << 24;
chaithanyarss 0:83e597a2a37c 519 ocr |= spi.write(0xFF) << 16;
chaithanyarss 0:83e597a2a37c 520 ocr |= spi.write(0xFF) << 8;
chaithanyarss 0:83e597a2a37c 521 ocr |= spi.write(0xFF) << 0;
chaithanyarss 0:83e597a2a37c 522 cs_sd = 1;
chaithanyarss 0:83e597a2a37c 523 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 524 return response;
chaithanyarss 0:83e597a2a37c 525 }
chaithanyarss 0:83e597a2a37c 526 }
chaithanyarss 0:83e597a2a37c 527 cs_sd = 1;
chaithanyarss 0:83e597a2a37c 528 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 529 return -1; // timeout
chaithanyarss 0:83e597a2a37c 530 }
chaithanyarss 0:83e597a2a37c 531
chaithanyarss 0:83e597a2a37c 532
chaithanyarss 0:83e597a2a37c 533 int cmd8()
chaithanyarss 0:83e597a2a37c 534 {
chaithanyarss 0:83e597a2a37c 535 cs_sd = 0;
chaithanyarss 0:83e597a2a37c 536
chaithanyarss 0:83e597a2a37c 537 // send a command
chaithanyarss 0:83e597a2a37c 538 spi.write(0x40 | 8); // CMD8
chaithanyarss 0:83e597a2a37c 539 spi.write(0x00); // reserved
chaithanyarss 0:83e597a2a37c 540 spi.write(0x00); // reserved
chaithanyarss 0:83e597a2a37c 541 spi.write(0x01); // 3.3v
chaithanyarss 0:83e597a2a37c 542 spi.write(0xAA); // check pattern
chaithanyarss 0:83e597a2a37c 543 spi.write(0x87); // crc
chaithanyarss 0:83e597a2a37c 544
chaithanyarss 0:83e597a2a37c 545 // wait for the repsonse (response[7] == 0)
chaithanyarss 0:83e597a2a37c 546 for (int i = 0; i < SD_COMMAND_TIMEOUT * 1000; i++) {
chaithanyarss 0:83e597a2a37c 547 char response[5];
chaithanyarss 0:83e597a2a37c 548 response[0] = spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 549 if (!(response[0] & 0x80)) {
chaithanyarss 0:83e597a2a37c 550 for (int j = 1; j < 5; j++) {
chaithanyarss 0:83e597a2a37c 551 response[i] = spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 552 }
chaithanyarss 0:83e597a2a37c 553 cs_sd = 1;
chaithanyarss 0:83e597a2a37c 554 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 555 return response[0];
chaithanyarss 0:83e597a2a37c 556 }
chaithanyarss 0:83e597a2a37c 557 }
chaithanyarss 0:83e597a2a37c 558 cs_sd = 1;
chaithanyarss 0:83e597a2a37c 559 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 560 return -1; // timeout
chaithanyarss 0:83e597a2a37c 561 }
chaithanyarss 0:83e597a2a37c 562
chaithanyarss 0:83e597a2a37c 563 uint64_t sd_sectors()
chaithanyarss 0:83e597a2a37c 564 {
chaithanyarss 0:83e597a2a37c 565 uint32_t c_size, c_size_mult, read_bl_len;
chaithanyarss 0:83e597a2a37c 566 uint32_t block_len, mult, blocknr, capacity;
chaithanyarss 0:83e597a2a37c 567 uint32_t hc_c_size;
chaithanyarss 0:83e597a2a37c 568 uint64_t blocks;
chaithanyarss 0:83e597a2a37c 569
chaithanyarss 0:83e597a2a37c 570 // CMD9, Response R2 (R1 byte + 16-byte block read)
chaithanyarss 0:83e597a2a37c 571 if (cmdx(9, 0) != 0) {
chaithanyarss 0:83e597a2a37c 572 //debug("\rDidn't get a response from the disk\n");
chaithanyarss 0:83e597a2a37c 573 return 0;
chaithanyarss 0:83e597a2a37c 574 }
chaithanyarss 0:83e597a2a37c 575
chaithanyarss 0:83e597a2a37c 576 uint8_t cs_sdd[16];
chaithanyarss 0:83e597a2a37c 577 if (read(cs_sdd, 16) != 0) {
chaithanyarss 0:83e597a2a37c 578 //debug("\rCouldn't read cs_sdd response from disk\n");
chaithanyarss 0:83e597a2a37c 579 return 0;
chaithanyarss 0:83e597a2a37c 580 }
chaithanyarss 0:83e597a2a37c 581
chaithanyarss 0:83e597a2a37c 582 // cs_sdd_structure : cs_sdd[127:126]
chaithanyarss 0:83e597a2a37c 583 // c_size : cs_sdd[73:62]
chaithanyarss 0:83e597a2a37c 584 // c_size_mult : cs_sdd[49:47]
chaithanyarss 0:83e597a2a37c 585 // read_bl_len : cs_sdd[83:80] - the *maximum* read block length
chaithanyarss 0:83e597a2a37c 586
chaithanyarss 0:83e597a2a37c 587 int cs_sdd_structure = ext_bits(cs_sdd, 127, 126);
chaithanyarss 0:83e597a2a37c 588
chaithanyarss 0:83e597a2a37c 589 switch (cs_sdd_structure) {
chaithanyarss 0:83e597a2a37c 590 case 0:
chaithanyarss 0:83e597a2a37c 591 cdv = 512;
chaithanyarss 0:83e597a2a37c 592 c_size = ext_bits(cs_sdd, 73, 62);
chaithanyarss 0:83e597a2a37c 593 c_size_mult = ext_bits(cs_sdd, 49, 47);
chaithanyarss 0:83e597a2a37c 594 read_bl_len = ext_bits(cs_sdd, 83, 80);
chaithanyarss 0:83e597a2a37c 595
chaithanyarss 0:83e597a2a37c 596 block_len = 1 << read_bl_len;
chaithanyarss 0:83e597a2a37c 597 mult = 1 << (c_size_mult + 2);
chaithanyarss 0:83e597a2a37c 598 blocknr = (c_size + 1) * mult;
chaithanyarss 0:83e597a2a37c 599 capacity = blocknr * block_len;
chaithanyarss 0:83e597a2a37c 600 blocks = capacity / 512;
chaithanyarss 0:83e597a2a37c 601 //debug_if(SD_DBG, "\n\rSDCard\n\rc_size: %d \n\rcapacity: %ld \n\rsectors: %lld\n\r", c_size, capacity, blocks);
chaithanyarss 0:83e597a2a37c 602 break;
chaithanyarss 0:83e597a2a37c 603
chaithanyarss 0:83e597a2a37c 604 case 1:
chaithanyarss 0:83e597a2a37c 605 cdv = 1;
chaithanyarss 0:83e597a2a37c 606 hc_c_size = ext_bits(cs_sdd, 63, 48);
chaithanyarss 0:83e597a2a37c 607 blocks = (hc_c_size+1)*1024;
chaithanyarss 0:83e597a2a37c 608 //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);
chaithanyarss 0:83e597a2a37c 609 break;
chaithanyarss 0:83e597a2a37c 610
chaithanyarss 0:83e597a2a37c 611 default:
chaithanyarss 0:83e597a2a37c 612 //debug("cs_sdD struct unsupported\r\n");
chaithanyarss 0:83e597a2a37c 613 return 0;
chaithanyarss 0:83e597a2a37c 614 };
chaithanyarss 0:83e597a2a37c 615 return blocks;
chaithanyarss 0:83e597a2a37c 616 }
chaithanyarss 0:83e597a2a37c 617
chaithanyarss 0:83e597a2a37c 618 int cmdx(int cmd, int arg)
chaithanyarss 0:83e597a2a37c 619 {
chaithanyarss 0:83e597a2a37c 620 cs_sd = 0;
chaithanyarss 0:83e597a2a37c 621
chaithanyarss 0:83e597a2a37c 622 // send a command
chaithanyarss 0:83e597a2a37c 623 spi.write(0x40 | cmd);
chaithanyarss 0:83e597a2a37c 624 spi.write(arg >> 24);
chaithanyarss 0:83e597a2a37c 625 spi.write(arg >> 16);
chaithanyarss 0:83e597a2a37c 626 spi.write(arg >> 8);
chaithanyarss 0:83e597a2a37c 627 spi.write(arg >> 0);
chaithanyarss 0:83e597a2a37c 628 spi.write(0x95);
chaithanyarss 0:83e597a2a37c 629
chaithanyarss 0:83e597a2a37c 630 // wait for the repsonse (response[7] == 0)
chaithanyarss 0:83e597a2a37c 631 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
chaithanyarss 0:83e597a2a37c 632 int response = spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 633 if (!(response & 0x80)) {
chaithanyarss 0:83e597a2a37c 634 return response;
chaithanyarss 0:83e597a2a37c 635 }
chaithanyarss 0:83e597a2a37c 636 }
chaithanyarss 0:83e597a2a37c 637 cs_sd = 1;
chaithanyarss 0:83e597a2a37c 638 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 639 return 1; // timeout
chaithanyarss 0:83e597a2a37c 640 }
chaithanyarss 0:83e597a2a37c 641
chaithanyarss 0:83e597a2a37c 642 static uint32_t ext_bits(unsigned char *data, int msb, int lsb)
chaithanyarss 0:83e597a2a37c 643 {
chaithanyarss 0:83e597a2a37c 644 uint32_t bits = 0;
chaithanyarss 0:83e597a2a37c 645 uint32_t size = 1 + msb - lsb;
chaithanyarss 0:83e597a2a37c 646 for (int i = 0; i < size; i++) {
chaithanyarss 0:83e597a2a37c 647 uint32_t position = lsb + i;
chaithanyarss 0:83e597a2a37c 648 uint32_t byte = 15 - (position >> 3);
chaithanyarss 0:83e597a2a37c 649 uint32_t bit = position & 0x7;
chaithanyarss 0:83e597a2a37c 650 uint32_t value = (data[byte] >> bit) & 1;
chaithanyarss 0:83e597a2a37c 651 bits |= value << i;
chaithanyarss 0:83e597a2a37c 652 }
chaithanyarss 0:83e597a2a37c 653 return bits;
chaithanyarss 0:83e597a2a37c 654 }
chaithanyarss 0:83e597a2a37c 655
chaithanyarss 0:83e597a2a37c 656 int disk_write(const uint8_t *buffer, uint64_t block_number)
chaithanyarss 0:83e597a2a37c 657
chaithanyarss 0:83e597a2a37c 658 {
chaithanyarss 0:83e597a2a37c 659 // set write address for single block (CMD24)
chaithanyarss 0:83e597a2a37c 660 if (cmd(24, block_number * cdv) != 0) {
chaithanyarss 0:83e597a2a37c 661 return 1;
chaithanyarss 0:83e597a2a37c 662 }
chaithanyarss 0:83e597a2a37c 663
chaithanyarss 0:83e597a2a37c 664 //uint64_t temp;
chaithanyarss 0:83e597a2a37c 665 int r = write(buffer, 512);
chaithanyarss 0:83e597a2a37c 666 if(r == 0 ){
chaithanyarss 0:83e597a2a37c 667 //temp = FCTN_CDMS_RD_RTC();
chaithanyarss 0:83e597a2a37c 668 //TIME_LATEST_SD_RD = temp >> 7;
chaithanyarss 0:83e597a2a37c 669 }
chaithanyarss 0:83e597a2a37c 670 return r;
chaithanyarss 0:83e597a2a37c 671 }
chaithanyarss 0:83e597a2a37c 672
chaithanyarss 0:83e597a2a37c 673 int write(const uint8_t*buffer, uint32_t length)
chaithanyarss 0:83e597a2a37c 674 {
chaithanyarss 0:83e597a2a37c 675 cs_sd = 0;
chaithanyarss 0:83e597a2a37c 676
chaithanyarss 0:83e597a2a37c 677 // indicate start of block
chaithanyarss 0:83e597a2a37c 678 spi.write(0xFE);
chaithanyarss 0:83e597a2a37c 679
chaithanyarss 0:83e597a2a37c 680 // write the data
chaithanyarss 0:83e597a2a37c 681 for (int i = 0; i < length; i++) {
chaithanyarss 0:83e597a2a37c 682 spi.write(buffer[i]);
chaithanyarss 0:83e597a2a37c 683 }
chaithanyarss 0:83e597a2a37c 684
chaithanyarss 0:83e597a2a37c 685 // write the checksum
chaithanyarss 0:83e597a2a37c 686 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 687 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 688
chaithanyarss 0:83e597a2a37c 689 // check the response token
chaithanyarss 0:83e597a2a37c 690 if ((spi.write(0xFF) & 0x1F) != 0x05) {
chaithanyarss 0:83e597a2a37c 691 cs_sd = 1;
chaithanyarss 0:83e597a2a37c 692 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 693 return 1;
chaithanyarss 0:83e597a2a37c 694 }
chaithanyarss 0:83e597a2a37c 695
chaithanyarss 0:83e597a2a37c 696 // wait for write to finish
chaithanyarss 0:83e597a2a37c 697 while (spi.write(0xFF) == 0);
chaithanyarss 0:83e597a2a37c 698
chaithanyarss 0:83e597a2a37c 699 cs_sd = 1;
chaithanyarss 0:83e597a2a37c 700 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 701 return 0;
chaithanyarss 0:83e597a2a37c 702 }
chaithanyarss 0:83e597a2a37c 703
chaithanyarss 0:83e597a2a37c 704 int disk_read(uint8_t *buffer, uint64_t block_number)
chaithanyarss 0:83e597a2a37c 705 {
chaithanyarss 0:83e597a2a37c 706 // set read address for single block (CMD17)
chaithanyarss 0:83e597a2a37c 707 if (cmd(17, block_number * cdv) != 0) {
chaithanyarss 0:83e597a2a37c 708 SD_RD_ERROR = 1;
chaithanyarss 0:83e597a2a37c 709 return 1;
chaithanyarss 0:83e597a2a37c 710 }
chaithanyarss 0:83e597a2a37c 711
chaithanyarss 0:83e597a2a37c 712 // receive the data
chaithanyarss 0:83e597a2a37c 713 read(buffer, 512);
chaithanyarss 0:83e597a2a37c 714 /*uint64_t temp = FCTN_CDMS_RD_RTC();
chaithanyarss 0:83e597a2a37c 715 TIME_LATEST_SD_RD = temp >> 7;*/
chaithanyarss 0:83e597a2a37c 716 return 0;
chaithanyarss 0:83e597a2a37c 717 }
chaithanyarss 0:83e597a2a37c 718
chaithanyarss 0:83e597a2a37c 719 int read(uint8_t *buffer, uint32_t length)
chaithanyarss 0:83e597a2a37c 720 {
chaithanyarss 0:83e597a2a37c 721 cs_sd = 0;
chaithanyarss 0:83e597a2a37c 722
chaithanyarss 0:83e597a2a37c 723 // read until start byte (0xFF)
chaithanyarss 0:83e597a2a37c 724 while (spi.write(0xFF) != 0xFE);
chaithanyarss 0:83e597a2a37c 725
chaithanyarss 0:83e597a2a37c 726 // read data
chaithanyarss 0:83e597a2a37c 727 for (int i = 0; i < length; i++) {
chaithanyarss 0:83e597a2a37c 728 buffer[i] = spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 729 }
chaithanyarss 0:83e597a2a37c 730 spi.write(0xFF); // checksum
chaithanyarss 0:83e597a2a37c 731 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 732
chaithanyarss 0:83e597a2a37c 733 cs_sd = 1;
chaithanyarss 0:83e597a2a37c 734 spi.write(0xFF);
chaithanyarss 0:83e597a2a37c 735 return 0;
chaithanyarss 0:83e597a2a37c 736 }
chaithanyarss 0:83e597a2a37c 737
chaithanyarss 0:83e597a2a37c 738 int disk_erase(int startBlock, int totalBlocks)
chaithanyarss 0:83e597a2a37c 739 {
chaithanyarss 0:83e597a2a37c 740 if(cmd(32, startBlock * cdv) != 0) {
chaithanyarss 0:83e597a2a37c 741 return 1;
chaithanyarss 0:83e597a2a37c 742 }
chaithanyarss 0:83e597a2a37c 743 if (cmd(33, (startBlock+totalBlocks-1) * cdv) != 0) {
chaithanyarss 0:83e597a2a37c 744 return 1;
chaithanyarss 0:83e597a2a37c 745 }
chaithanyarss 0:83e597a2a37c 746 if (cmd(38,0) != 0) {
chaithanyarss 0:83e597a2a37c 747 return 1;
chaithanyarss 0:83e597a2a37c 748 }
chaithanyarss 0:83e597a2a37c 749
chaithanyarss 0:83e597a2a37c 750 return 0; //normal return
chaithanyarss 0:83e597a2a37c 751 }
chaithanyarss 0:83e597a2a37c 752
chaithanyarss 0:83e597a2a37c 753 int disk_read_statusbits(uint8_t *buffer)
chaithanyarss 0:83e597a2a37c 754 {
chaithanyarss 0:83e597a2a37c 755 if (cmd(17, 0) != 0) {
chaithanyarss 0:83e597a2a37c 756 SD_RD_ERROR = 1;
chaithanyarss 0:83e597a2a37c 757 return -1;
chaithanyarss 0:83e597a2a37c 758 }
chaithanyarss 0:83e597a2a37c 759
chaithanyarss 0:83e597a2a37c 760 // receive the data
chaithanyarss 0:83e597a2a37c 761 return read(buffer,64);
chaithanyarss 0:83e597a2a37c 762 }