11th feb i2c checking chaitu's code
Dependencies: SimpleDMA eeprom mbed-rtos mbed
Fork of CDMS_CODE_FM_28JAN2017 by
cdms_sd.h@328:2242ebc71be8, 2016-12-20 (annotated)
- Committer:
- chaithanyarss
- Date:
- Tue Dec 20 08:36:41 2016 +0000
- Revision:
- 328:2242ebc71be8
- Parent:
- 327:5a967a66c10f
- Child:
- 339:5c4bda268e08
- Child:
- 341:599aa20d0279
- Child:
- 343:cd7b1734f7a0
- Child:
- 346:204497974293
changed ADF temperature calibration; testing OBSRS
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
chaithanyarss | 328:2242ebc71be8 | 1 | #ifndef CDMS_SD_INLCUDED |
chaithanyarss | 328:2242ebc71be8 | 2 | #define CDMS_SD_INLCUDED |
chaithanyarss | 328:2242ebc71be8 | 3 | |
chaithanyarss | 327:5a967a66c10f | 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 | |
chaithanyarss | 261:1e54415b34d3 | 10 | #define SD_COMMAND_TIMEOUT 325 |
ee12b079 | 86:a26f5f22631d | 11 | |
chaithanyarss | 328:2242ebc71be8 | 12 | #define SD_DBG 1 |
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 | |
chaithanyarss | 327:5a967a66c10f | 22 | uint32_t SD_DATABLOCK_START[] = {0, 1001, 11001, 21001, 31001, 41001}; |
chaithanyarss | 327:5a967a66c10f | 23 | uint32_t SD_DATABLOCK_END[] = {0, 11000, 21000, 31000, 41000, 51000}; |
chaithanyarss | 327:5a967a66c10f | 24 | uint32_t SD_MNG_SECT=80000; |
ee12b079 | 86:a26f5f22631d | 25 | |
ee12b079 | 194:ab528911780d | 26 | extern uint8_t SD_INIT_FLAGS; |
ee12b079 | 86:a26f5f22631d | 27 | |
ee12b079 | 86:a26f5f22631d | 28 | int initialise_card(); |
ee12b079 | 86:a26f5f22631d | 29 | int initialise_card_v1(); |
ee12b079 | 86:a26f5f22631d | 30 | int initialise_card_v2(); |
ee12b079 | 86:a26f5f22631d | 31 | int disk_write(const uint8_t *, uint64_t); |
ee12b079 | 86:a26f5f22631d | 32 | int disk_read(uint8_t *, uint64_t); |
ee12b079 | 86:a26f5f22631d | 33 | int disk_erase(int,int); |
ee12b079 | 209:63e9c8f8b5d2 | 34 | int disk_read_statusbits(uint8_t *); |
ee12b079 | 86:a26f5f22631d | 35 | |
chaithanyarss | 326:e424f70b86c0 | 36 | void FCTN_SD_MNGR(); |
ee12b079 | 194:ab528911780d | 37 | int INCREMENT_SD_LIB(uint8_t); |
ee12b079 | 86:a26f5f22631d | 38 | |
ee12b079 | 86:a26f5f22631d | 39 | |
ee12b079 | 86:a26f5f22631d | 40 | int cmd(int, int); |
ee12b079 | 86:a26f5f22631d | 41 | int cmd58(); |
ee12b079 | 86:a26f5f22631d | 42 | int cmdx(int, int); |
ee12b079 | 86:a26f5f22631d | 43 | int cmd8(); |
ee12b079 | 86:a26f5f22631d | 44 | int read(uint8_t*, uint32_t ); |
ee12b079 | 86:a26f5f22631d | 45 | int write(const uint8_t*, uint32_t ); |
ee12b079 | 86:a26f5f22631d | 46 | static uint32_t ext_bits(unsigned char *, int , int ); |
ee12b079 | 92:bce22b38c440 | 47 | int SD_WRITE(uint8_t*,uint32_t,uint8_t); |
ee12b079 | 194:ab528911780d | 48 | int FCTN_CDMS_SD_INIT(); |
ee12b079 | 195:6a549c0e9287 | 49 | uint8_t SD_READ(uint8_t*,uint32_t,uint8_t); |
chaithanyarss | 261:1e54415b34d3 | 50 | #define SDCARD_FAIL 4 |
ee12b079 | 86:a26f5f22631d | 51 | #define SDCARD_V1 1 |
ee12b079 | 86:a26f5f22631d | 52 | #define SDCARD_V2 2 |
ee12b079 | 86:a26f5f22631d | 53 | #define SDCARD_V2HC 3 |
ee12b079 | 86:a26f5f22631d | 54 | |
ee12b079 | 86:a26f5f22631d | 55 | int cdv; |
ee12b079 | 86:a26f5f22631d | 56 | uint64_t sd_sectors(); |
ee12b079 | 86:a26f5f22631d | 57 | uint64_t sectors; |
ee12b079 | 86:a26f5f22631d | 58 | |
ee12b079 | 194:ab528911780d | 59 | int FCTN_CDMS_SD_INIT() |
chaithanyarss | 327:5a967a66c10f | 60 | { |
ee12b079 | 194:ab528911780d | 61 | int i = initialise_card(); |
chaithanyarss | 261:1e54415b34d3 | 62 | if( i == 4) |
chaithanyarss | 327:5a967a66c10f | 63 | return 4; |
ee12b079 | 194:ab528911780d | 64 | debug_if(SD_DBG, "init card = %d\n", i); |
ee12b079 | 194:ab528911780d | 65 | sectors = sd_sectors(); |
ee12b079 | 194:ab528911780d | 66 | |
ee12b079 | 194:ab528911780d | 67 | // Set block length to 512 (CMD16) |
ee12b079 | 194:ab528911780d | 68 | if (cmd(16, 512) != 0) { |
ee12b079 | 194:ab528911780d | 69 | debug("\rSet 512-byte block timed out\r\n"); |
ee12b079 | 194:ab528911780d | 70 | return 1; |
ee12b079 | 194:ab528911780d | 71 | } else { |
chaithanyarss | 327:5a967a66c10f | 72 | //printf("\rDisk initialization successfull\r\n"); |
ee12b079 | 194:ab528911780d | 73 | } |
chaithanyarss | 261:1e54415b34d3 | 74 | SD_STATUS = DEVICE_POWERED; |
ee12b079 | 194:ab528911780d | 75 | spi.frequency(1000000); // Set to 1MHz for data transfer |
ee12b079 | 194:ab528911780d | 76 | return 0; |
ee12b079 | 86:a26f5f22631d | 77 | } |
ee12b079 | 86:a26f5f22631d | 78 | |
ee12b079 | 209:63e9c8f8b5d2 | 79 | void FCTN_SD_MNGR() |
ee12b079 | 86:a26f5f22631d | 80 | { |
ee12b079 | 92:bce22b38c440 | 81 | uint32_t fsc; |
chaithanyarss | 327:5a967a66c10f | 82 | uint32_t fsc_old; |
ee12b079 | 92:bce22b38c440 | 83 | uint8_t buffer[512]; |
chaithanyarss | 261:1e54415b34d3 | 84 | int b; |
chaithanyarss | 327:5a967a66c10f | 85 | if(SD_STATUS == DEVICE_POWERED) { |
chaithanyarss | 327:5a967a66c10f | 86 | b=disk_read(buffer, SD_MNG_SECT); |
ee12b079 | 195:6a549c0e9287 | 87 | |
chaithanyarss | 327:5a967a66c10f | 88 | for(int i = 0; i < 5; i++ ) { |
chaithanyarss | 327:5a967a66c10f | 89 | fsc= (uint32_t)(buffer[0 + i*8]<<24)+(uint32_t)(buffer[1 + i*8]<<16)+(uint32_t)(buffer[2 + i*8]<<8)+(uint32_t)buffer[3 + i*8]; |
chaithanyarss | 327:5a967a66c10f | 90 | fsc_old= (uint32_t)(buffer[4 + i*8]<<24)+(uint32_t)(buffer[5 + i*8]<<16)+(uint32_t)(buffer[6 + i*8]<<8)+(uint32_t)buffer[7 + i*8]; |
chaithanyarss | 327:5a967a66c10f | 91 | FSC_CURRENT[1 + i] = fsc; |
chaithanyarss | 327:5a967a66c10f | 92 | FSC_OLD[1 + i] = fsc_old; |
chaithanyarss | 327:5a967a66c10f | 93 | } |
chaithanyarss | 261:1e54415b34d3 | 94 | } |
ee12b079 | 194:ab528911780d | 95 | } |
ee12b079 | 194:ab528911780d | 96 | |
ee12b079 | 194:ab528911780d | 97 | int INCREMENT_SD_LIB(uint8_t sid) |
ee12b079 | 194:ab528911780d | 98 | { |
ee12b079 | 194:ab528911780d | 99 | uint32_t fsc; |
chaithanyarss | 327:5a967a66c10f | 100 | uint32_t fsc_old; |
ee12b079 | 209:63e9c8f8b5d2 | 101 | int i; |
ee12b079 | 194:ab528911780d | 102 | uint8_t buffer[512]; |
chaithanyarss | 327:5a967a66c10f | 103 | |
spacelab | 308:7c3872365d58 | 104 | disk_read(buffer,SD_MNG_SECT); |
ee12b079 | 209:63e9c8f8b5d2 | 105 | SD_MNG_SECT += SD_LIB_WRITES/(int)0xFFFF; |
chaithanyarss | 327:5a967a66c10f | 106 | if(SD_MNG_SECT != SD_LIB_BLK_CURRENT) { |
chaithanyarss | 324:c0a5228cc666 | 107 | SD_LIB_BLK_CURRENT = SD_MNG_SECT; |
chaithanyarss | 327:5a967a66c10f | 108 | FCTN_CDMS_WR_FLASH(16,SD_LIB_BLK_CURRENT); |
chaithanyarss | 324:c0a5228cc666 | 109 | } |
ee12b079 | 209:63e9c8f8b5d2 | 110 | SD_LIB_WRITES = SD_LIB_WRITES%(int)0xFFFF; |
spacelab | 308:7c3872365d58 | 111 | disk_write(buffer,SD_MNG_SECT); |
chaithanyarss | 327:5a967a66c10f | 112 | |
ee12b079 | 194:ab528911780d | 113 | disk_read(buffer,SD_MNG_SECT); |
chaithanyarss | 328:2242ebc71be8 | 114 | if(sid>=0x01 && sid <=0x05) |
chaithanyarss | 328:2242ebc71be8 | 115 | { |
chaithanyarss | 328:2242ebc71be8 | 116 | fsc=(uint32_t)(buffer[0 + ((sid-1)*8)]<<24)+(uint32_t)(buffer[1 + ((sid-1)*8)]<<16)+(uint32_t)(buffer[2 + ((sid-1)*8)]<<8)+(uint32_t)buffer[3 + ((sid-1)*8)]; |
chaithanyarss | 328:2242ebc71be8 | 117 | fsc_old=(uint32_t)(buffer[4 + ((sid-1)*8)]<<24)+(uint32_t)(buffer[5 + ((sid-1)*8)]<<16)+(uint32_t)(buffer[6 + ((sid-1)*8)]<<8)+(uint32_t)buffer[7 + ((sid-1)*8)]; |
ee12b079 | 203:424308159a56 | 118 | fsc++; |
chaithanyarss | 328:2242ebc71be8 | 119 | buffer[0 + ((sid-1)*8)]=(uint8_t) (fsc>>24 & 0xFF); |
chaithanyarss | 328:2242ebc71be8 | 120 | buffer[1 + ((sid-1)*8)]=(uint8_t) (fsc>>16 & 0xFF); |
chaithanyarss | 328:2242ebc71be8 | 121 | buffer[2 + ((sid-1)*8)]=(uint8_t) (fsc>>8 & 0xFF); |
chaithanyarss | 328:2242ebc71be8 | 122 | buffer[3 + ((sid-1)*8)]=(uint8_t) (fsc & 0xFF); |
chaithanyarss | 328:2242ebc71be8 | 123 | if(fsc > SD_DATABLOCK_END[sid]-SD_DATABLOCK_START[sid]+1) { |
chaithanyarss | 327:5a967a66c10f | 124 | fsc_old = fsc_old+1; |
chaithanyarss | 328:2242ebc71be8 | 125 | buffer[4 + ((sid-1)*8)]=(uint8_t) (fsc_old>>24 & 0xFF); |
chaithanyarss | 328:2242ebc71be8 | 126 | buffer[5 + ((sid-1)*8)]=(uint8_t) (fsc_old>>16 & 0xFF); |
chaithanyarss | 328:2242ebc71be8 | 127 | buffer[6 + ((sid-1)*8)]=(uint8_t) (fsc_old>>8 & 0xFF); |
chaithanyarss | 328:2242ebc71be8 | 128 | buffer[7 + ((sid-1)*8)]=(uint8_t) (fsc_old & 0xFF); |
ee12b079 | 194:ab528911780d | 129 | } |
chaithanyarss | 327:5a967a66c10f | 130 | |
ee12b079 | 203:424308159a56 | 131 | i = disk_write(buffer,SD_MNG_SECT); |
chaithanyarss | 327:5a967a66c10f | 132 | if(i == 0) { |
chaithanyarss | 328:2242ebc71be8 | 133 | FSC_CURRENT[sid] = fsc; |
chaithanyarss | 328:2242ebc71be8 | 134 | FSC_OLD[sid] = fsc_old; |
ee12b079 | 209:63e9c8f8b5d2 | 135 | return i; |
ee12b079 | 209:63e9c8f8b5d2 | 136 | } |
ee12b079 | 194:ab528911780d | 137 | } |
ee12b079 | 194:ab528911780d | 138 | return -1; |
ee12b079 | 86:a26f5f22631d | 139 | } |
ee12b079 | 86:a26f5f22631d | 140 | |
ee12b079 | 86:a26f5f22631d | 141 | |
ee12b079 | 92:bce22b38c440 | 142 | int SD_WRITE(uint8_t* buffer,uint32_t fsc,uint8_t sid) |
ee12b079 | 86:a26f5f22631d | 143 | { |
spacelab | 308:7c3872365d58 | 144 | uint32_t block_number; |
ee12b079 | 194:ab528911780d | 145 | int result = 10; |
chaithanyarss | 327:5a967a66c10f | 146 | if(SD_STATUS == DEVICE_POWERED) { |
chaithanyarss | 327:5a967a66c10f | 147 | if(sid==0x01) { |
chaithanyarss | 327:5a967a66c10f | 148 | block_number=SD_DATABLOCK_START[1]+(fsc%(SD_DATABLOCK_END[1]-SD_DATABLOCK_START[1]+1)); |
chaithanyarss | 327:5a967a66c10f | 149 | //block_number=SD_DATABLOCK_START[1]+fsc; |
chaithanyarss | 327:5a967a66c10f | 150 | result= disk_write(buffer,block_number); |
chaithanyarss | 327:5a967a66c10f | 151 | if(result == 0) { |
chaithanyarss | 327:5a967a66c10f | 152 | if(INCREMENT_SD_LIB(sid) == 0) |
chaithanyarss | 327:5a967a66c10f | 153 | SD_LIB_WRITES++; |
chaithanyarss | 327:5a967a66c10f | 154 | } |
chaithanyarss | 327:5a967a66c10f | 155 | return result; |
chaithanyarss | 327:5a967a66c10f | 156 | } |
chaithanyarss | 327:5a967a66c10f | 157 | if(sid==0x02) { |
chaithanyarss | 327:5a967a66c10f | 158 | block_number= SD_DATABLOCK_START[2]+(fsc%(SD_DATABLOCK_END[2] - SD_DATABLOCK_START[2]+1)); |
chaithanyarss | 327:5a967a66c10f | 159 | //block_number= SD_DATABLOCK_START[2]+fsc; |
chaithanyarss | 327:5a967a66c10f | 160 | result= disk_write(buffer,block_number); |
chaithanyarss | 327:5a967a66c10f | 161 | if(result == 0) { |
chaithanyarss | 327:5a967a66c10f | 162 | if(INCREMENT_SD_LIB(sid) == 0) |
chaithanyarss | 327:5a967a66c10f | 163 | SD_LIB_WRITES++; |
chaithanyarss | 327:5a967a66c10f | 164 | } |
chaithanyarss | 327:5a967a66c10f | 165 | return result; |
ee12b079 | 209:63e9c8f8b5d2 | 166 | } |
chaithanyarss | 327:5a967a66c10f | 167 | if(sid==0x03) { |
chaithanyarss | 327:5a967a66c10f | 168 | block_number= SD_DATABLOCK_START[3] +(fsc%(SD_DATABLOCK_END[3] - SD_DATABLOCK_START[3] +1)); |
chaithanyarss | 327:5a967a66c10f | 169 | //block_number= SD_DATABLOCK_START[3] +fsc; |
chaithanyarss | 327:5a967a66c10f | 170 | result= disk_write(buffer,block_number); |
chaithanyarss | 327:5a967a66c10f | 171 | if(result == 0) { |
chaithanyarss | 327:5a967a66c10f | 172 | if(INCREMENT_SD_LIB(sid) == 0) |
chaithanyarss | 327:5a967a66c10f | 173 | SD_LIB_WRITES++; |
chaithanyarss | 327:5a967a66c10f | 174 | } |
chaithanyarss | 327:5a967a66c10f | 175 | return result; |
ee12b079 | 209:63e9c8f8b5d2 | 176 | } |
chaithanyarss | 327:5a967a66c10f | 177 | if(sid==0x04) { |
chaithanyarss | 327:5a967a66c10f | 178 | block_number=SD_DATABLOCK_START[4] +(fsc%(SD_DATABLOCK_END[4] - SD_DATABLOCK_START[4] +1)); |
chaithanyarss | 327:5a967a66c10f | 179 | //block_number=SD_DATABLOCK_START[4] +fsc; |
chaithanyarss | 327:5a967a66c10f | 180 | result= disk_write(buffer,block_number); |
chaithanyarss | 327:5a967a66c10f | 181 | if(result == 0) { |
chaithanyarss | 327:5a967a66c10f | 182 | if(INCREMENT_SD_LIB(sid) == 0) |
chaithanyarss | 327:5a967a66c10f | 183 | SD_LIB_WRITES++; |
chaithanyarss | 327:5a967a66c10f | 184 | } |
chaithanyarss | 327:5a967a66c10f | 185 | return result; |
chaithanyarss | 327:5a967a66c10f | 186 | } |
chaithanyarss | 327:5a967a66c10f | 187 | if(sid==0x05) { |
chaithanyarss | 327:5a967a66c10f | 188 | block_number= SD_DATABLOCK_START[5] +(fsc%(SD_DATABLOCK_START[5] - SD_DATABLOCK_START[5] +1)); |
chaithanyarss | 327:5a967a66c10f | 189 | //block_number= SD_DATABLOCK_START[5] +fsc; |
chaithanyarss | 327:5a967a66c10f | 190 | result= disk_write(buffer,block_number); |
chaithanyarss | 327:5a967a66c10f | 191 | if(result == 0) { |
chaithanyarss | 327:5a967a66c10f | 192 | if(INCREMENT_SD_LIB(sid) == 0) |
chaithanyarss | 327:5a967a66c10f | 193 | SD_LIB_WRITES++; |
chaithanyarss | 327:5a967a66c10f | 194 | } |
chaithanyarss | 327:5a967a66c10f | 195 | return result; |
chaithanyarss | 327:5a967a66c10f | 196 | } |
ee12b079 | 86:a26f5f22631d | 197 | } |
chaithanyarss | 327:5a967a66c10f | 198 | // return 1; |
ee12b079 | 86:a26f5f22631d | 199 | } |
ee12b079 | 86:a26f5f22631d | 200 | |
ee12b079 | 195:6a549c0e9287 | 201 | uint8_t SD_READ(uint8_t* buffer,uint32_t fsc,uint8_t sid) |
ee12b079 | 86:a26f5f22631d | 202 | { |
spacelab | 308:7c3872365d58 | 203 | FCTN_SD_MNGR(); |
ee12b079 | 209:63e9c8f8b5d2 | 204 | uint32_t block_number; |
ee12b079 | 209:63e9c8f8b5d2 | 205 | int result; |
ee12b079 | 295:699801854b71 | 206 | //if(SD_SW_EN_DS == 1) |
ee12b079 | 295:699801854b71 | 207 | // return 0x89; |
chaithanyarss | 327:5a967a66c10f | 208 | if(sid==0x01) { |
chaithanyarss | 327:5a967a66c10f | 209 | if(!(FSC_OLD[1]<=fsc && fsc<=FSC_CURRENT[1])) { |
ee12b079 | 195:6a549c0e9287 | 210 | return 0x86; |
ee12b079 | 195:6a549c0e9287 | 211 | } |
chaithanyarss | 327:5a967a66c10f | 212 | block_number=SD_DATABLOCK_START[1]+(fsc%(SD_DATABLOCK_END[1]-SD_DATABLOCK_START[1]+1)); |
ee12b079 | 86:a26f5f22631d | 213 | result= disk_read(buffer,block_number); |
chaithanyarss | 327:5a967a66c10f | 214 | } else if(sid==0x02) { |
chaithanyarss | 327:5a967a66c10f | 215 | if(!(FSC_OLD[2]<=fsc && fsc<=FSC_CURRENT[2])) { |
ee12b079 | 195:6a549c0e9287 | 216 | return 0x86; |
ee12b079 | 195:6a549c0e9287 | 217 | } |
chaithanyarss | 327:5a967a66c10f | 218 | block_number= SD_DATABLOCK_START[2]+(fsc%(SD_DATABLOCK_END[2] - SD_DATABLOCK_START[2]+1)); |
ee12b079 | 86:a26f5f22631d | 219 | result= disk_read(buffer,block_number); |
chaithanyarss | 327:5a967a66c10f | 220 | } else if(sid==0x03) { |
chaithanyarss | 327:5a967a66c10f | 221 | if(!(FSC_OLD[3]<=fsc && fsc<=FSC_CURRENT[3])) { |
ee12b079 | 195:6a549c0e9287 | 222 | return 0x86; |
ee12b079 | 195:6a549c0e9287 | 223 | } |
chaithanyarss | 327:5a967a66c10f | 224 | block_number= SD_DATABLOCK_START[3] +(fsc%(SD_DATABLOCK_END[3] - SD_DATABLOCK_START[3] +1)); |
ee12b079 | 86:a26f5f22631d | 225 | result= disk_read(buffer,block_number); |
chaithanyarss | 327:5a967a66c10f | 226 | } else if(sid==0x04) { |
chaithanyarss | 327:5a967a66c10f | 227 | if(!(FSC_OLD[4]<=fsc && fsc<=FSC_CURRENT[4])) { |
ee12b079 | 195:6a549c0e9287 | 228 | return 0x86; |
ee12b079 | 195:6a549c0e9287 | 229 | } |
chaithanyarss | 327:5a967a66c10f | 230 | block_number=SD_DATABLOCK_START[4] +(fsc%(SD_DATABLOCK_END[4] - SD_DATABLOCK_START[4] +1)); |
ee12b079 | 86:a26f5f22631d | 231 | result= disk_read(buffer,block_number); |
chaithanyarss | 327:5a967a66c10f | 232 | } else if(sid==0x05) { |
chaithanyarss | 327:5a967a66c10f | 233 | if(!(FSC_OLD[5]<=fsc && fsc<=FSC_CURRENT[5])) { |
ee12b079 | 195:6a549c0e9287 | 234 | return 0x86; |
ee12b079 | 195:6a549c0e9287 | 235 | } |
chaithanyarss | 327:5a967a66c10f | 236 | block_number= SD_DATABLOCK_START[5] +(fsc%(SD_DATABLOCK_START[5] - SD_DATABLOCK_START[5] +1)); |
ee12b079 | 86:a26f5f22631d | 237 | result= disk_read(buffer,block_number); |
chaithanyarss | 327:5a967a66c10f | 238 | } else { |
ee12b079 | 195:6a549c0e9287 | 239 | return 0x02; |
ee12b079 | 86:a26f5f22631d | 240 | } |
ee12b079 | 195:6a549c0e9287 | 241 | if(result == 0) |
ee12b079 | 195:6a549c0e9287 | 242 | return 0xA0; |
ee12b079 | 195:6a549c0e9287 | 243 | else |
spacelab | 308:7c3872365d58 | 244 | return 0x88; |
chaithanyarss | 304:7cc4fe191a54 | 245 | return 0xA0; |
ee12b079 | 86:a26f5f22631d | 246 | } |
ee12b079 | 86:a26f5f22631d | 247 | |
ee12b079 | 86:a26f5f22631d | 248 | |
ee12b079 | 86:a26f5f22631d | 249 | int initialise_card() |
ee12b079 | 86:a26f5f22631d | 250 | { |
ee12b079 | 86:a26f5f22631d | 251 | // Set to 100kHz for initialisation, and clock card with cs_sd = 1 |
chaithanyarss | 327:5a967a66c10f | 252 | spi.frequency(100000); // changed on 31 12 2015 to 1 MHz |
ee12b079 | 86:a26f5f22631d | 253 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 254 | for (int i = 0; i < 16; i++) { |
ee12b079 | 86:a26f5f22631d | 255 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 256 | } |
ee12b079 | 194:ab528911780d | 257 | uint8_t R1_response = cmd(0,0); |
ee12b079 | 194:ab528911780d | 258 | gPC.printf("0x%02X",R1_response); |
ee12b079 | 86:a26f5f22631d | 259 | // send CMD0, should return with all zeros except IDLE STATE set (bit 0) |
ee12b079 | 194:ab528911780d | 260 | if (R1_response != R1_IDLE_STATE) { |
ee12b079 | 86:a26f5f22631d | 261 | debug("No disk, or could not put SD card in to spi idle state\r\n"); |
ee12b079 | 86:a26f5f22631d | 262 | return SDCARD_FAIL; |
chaithanyarss | 327:5a967a66c10f | 263 | } else |
chaithanyarss | 327:5a967a66c10f | 264 | gPC.puts("SD Card is in IDLE state\n\r"); |
ee12b079 | 86:a26f5f22631d | 265 | |
ee12b079 | 194:ab528911780d | 266 | // send CMD8 to determine whther it is ver 2.x |
ee12b079 | 86:a26f5f22631d | 267 | int r = cmd8(); |
ee12b079 | 86:a26f5f22631d | 268 | if (r == R1_IDLE_STATE) { |
ee12b079 | 194:ab528911780d | 269 | gPC.puts("Entering V2\r"); |
ee12b079 | 194:ab528911780d | 270 | int q = initialise_card_v2(); |
ee12b079 | 194:ab528911780d | 271 | return q; |
ee12b079 | 86:a26f5f22631d | 272 | |
ee12b079 | 86:a26f5f22631d | 273 | } else if (r == (R1_IDLE_STATE | R1_ILLEGAL_COMMAND)) { |
ee12b079 | 194:ab528911780d | 274 | gPC.puts("Entering V1"); |
ee12b079 | 86:a26f5f22631d | 275 | return initialise_card_v1(); |
ee12b079 | 86:a26f5f22631d | 276 | |
ee12b079 | 86:a26f5f22631d | 277 | } else { |
ee12b079 | 86:a26f5f22631d | 278 | debug("\rNot in idle state after sending CMD8 (not an SD card?)\r\n"); |
ee12b079 | 86:a26f5f22631d | 279 | return SDCARD_FAIL; |
ee12b079 | 86:a26f5f22631d | 280 | } |
ee12b079 | 86:a26f5f22631d | 281 | } |
ee12b079 | 86:a26f5f22631d | 282 | |
ee12b079 | 86:a26f5f22631d | 283 | int initialise_card_v1() |
ee12b079 | 86:a26f5f22631d | 284 | { |
ee12b079 | 86:a26f5f22631d | 285 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 286 | cmd(55, 0); |
ee12b079 | 86:a26f5f22631d | 287 | if (cmd(41, 0) == 0) { |
ee12b079 | 96:4ca92f9775e0 | 288 | gPC.puts("\rv1 initialization successfull\r\n"); |
ee12b079 | 86:a26f5f22631d | 289 | cdv = 512; |
ee12b079 | 86:a26f5f22631d | 290 | debug_if(SD_DBG, "\n\rInit: SEDCARD_V1\n\r"); |
ee12b079 | 86:a26f5f22631d | 291 | return SDCARD_V1; |
ee12b079 | 86:a26f5f22631d | 292 | } |
ee12b079 | 86:a26f5f22631d | 293 | } |
ee12b079 | 86:a26f5f22631d | 294 | |
ee12b079 | 86:a26f5f22631d | 295 | debug("\rTimeout waiting for v1.x card\r\n"); |
ee12b079 | 86:a26f5f22631d | 296 | return SDCARD_FAIL; |
ee12b079 | 86:a26f5f22631d | 297 | } |
ee12b079 | 86:a26f5f22631d | 298 | |
ee12b079 | 86:a26f5f22631d | 299 | |
ee12b079 | 86:a26f5f22631d | 300 | int initialise_card_v2() |
ee12b079 | 86:a26f5f22631d | 301 | { |
ee12b079 | 86:a26f5f22631d | 302 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 303 | wait_ms(50); |
ee12b079 | 86:a26f5f22631d | 304 | cmd58(); |
ee12b079 | 86:a26f5f22631d | 305 | cmd(55, 0); |
ee12b079 | 86:a26f5f22631d | 306 | if (cmd(41, 0x40000000) == 0) { |
ee12b079 | 194:ab528911780d | 307 | if (DEBUG) |
ee12b079 | 194:ab528911780d | 308 | gPC.puts("\rv2 initialization successfull\r\n"); |
ee12b079 | 86:a26f5f22631d | 309 | cmd58(); |
ee12b079 | 86:a26f5f22631d | 310 | debug_if(SD_DBG, "\n\rInit: SDCARD_V2\n\r"); |
ee12b079 | 86:a26f5f22631d | 311 | cdv = 1; |
ee12b079 | 322:7d906d34aaff | 312 | FCTN_SD_MNGR(); |
ee12b079 | 86:a26f5f22631d | 313 | return SDCARD_V2; |
ee12b079 | 86:a26f5f22631d | 314 | } |
ee12b079 | 86:a26f5f22631d | 315 | } |
ee12b079 | 86:a26f5f22631d | 316 | |
ee12b079 | 86:a26f5f22631d | 317 | debug("\rTimeout waiting for v2.x card\r\n"); |
ee12b079 | 86:a26f5f22631d | 318 | return SDCARD_FAIL; |
ee12b079 | 86:a26f5f22631d | 319 | } |
ee12b079 | 86:a26f5f22631d | 320 | |
ee12b079 | 86:a26f5f22631d | 321 | int cmd(int cmd, int arg) |
ee12b079 | 86:a26f5f22631d | 322 | { |
ee12b079 | 86:a26f5f22631d | 323 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 324 | |
ee12b079 | 86:a26f5f22631d | 325 | // send a command |
ee12b079 | 86:a26f5f22631d | 326 | spi.write(0x40 | cmd); |
ee12b079 | 86:a26f5f22631d | 327 | spi.write(arg >> 24); |
ee12b079 | 86:a26f5f22631d | 328 | spi.write(arg >> 16); |
ee12b079 | 86:a26f5f22631d | 329 | spi.write(arg >> 8); |
ee12b079 | 86:a26f5f22631d | 330 | spi.write(arg >> 0); |
ee12b079 | 86:a26f5f22631d | 331 | spi.write(0x95); |
ee12b079 | 86:a26f5f22631d | 332 | |
ee12b079 | 86:a26f5f22631d | 333 | // wait for the repsonse (response[7] == 0) |
ee12b079 | 86:a26f5f22631d | 334 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 335 | int response = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 336 | if (!(response & 0x80)) { |
ee12b079 | 86:a26f5f22631d | 337 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 338 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 339 | return response; |
ee12b079 | 86:a26f5f22631d | 340 | } |
ee12b079 | 86:a26f5f22631d | 341 | } |
ee12b079 | 86:a26f5f22631d | 342 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 343 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 344 | return -1; // timeout |
ee12b079 | 86:a26f5f22631d | 345 | } |
ee12b079 | 86:a26f5f22631d | 346 | |
ee12b079 | 86:a26f5f22631d | 347 | |
ee12b079 | 86:a26f5f22631d | 348 | int cmd58() |
ee12b079 | 86:a26f5f22631d | 349 | { |
ee12b079 | 86:a26f5f22631d | 350 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 351 | int arg = 0; |
ee12b079 | 86:a26f5f22631d | 352 | |
ee12b079 | 86:a26f5f22631d | 353 | // send a command |
ee12b079 | 86:a26f5f22631d | 354 | spi.write(0x40 | 58); |
ee12b079 | 86:a26f5f22631d | 355 | spi.write(arg >> 24); |
ee12b079 | 86:a26f5f22631d | 356 | spi.write(arg >> 16); |
ee12b079 | 86:a26f5f22631d | 357 | spi.write(arg >> 8); |
ee12b079 | 86:a26f5f22631d | 358 | spi.write(arg >> 0); |
ee12b079 | 86:a26f5f22631d | 359 | spi.write(0x95); |
ee12b079 | 86:a26f5f22631d | 360 | |
ee12b079 | 86:a26f5f22631d | 361 | // wait for the repsonse (response[7] == 0) |
ee12b079 | 86:a26f5f22631d | 362 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 363 | int response = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 364 | if (!(response & 0x80)) { |
ee12b079 | 86:a26f5f22631d | 365 | int ocr = spi.write(0xFF) << 24; |
ee12b079 | 86:a26f5f22631d | 366 | ocr |= spi.write(0xFF) << 16; |
ee12b079 | 86:a26f5f22631d | 367 | ocr |= spi.write(0xFF) << 8; |
ee12b079 | 86:a26f5f22631d | 368 | ocr |= spi.write(0xFF) << 0; |
ee12b079 | 86:a26f5f22631d | 369 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 370 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 371 | return response; |
ee12b079 | 86:a26f5f22631d | 372 | } |
ee12b079 | 86:a26f5f22631d | 373 | } |
ee12b079 | 86:a26f5f22631d | 374 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 375 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 376 | return -1; // timeout |
ee12b079 | 86:a26f5f22631d | 377 | } |
ee12b079 | 86:a26f5f22631d | 378 | |
ee12b079 | 86:a26f5f22631d | 379 | |
ee12b079 | 86:a26f5f22631d | 380 | int cmd8() |
ee12b079 | 86:a26f5f22631d | 381 | { |
ee12b079 | 86:a26f5f22631d | 382 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 383 | |
ee12b079 | 86:a26f5f22631d | 384 | // send a command |
ee12b079 | 86:a26f5f22631d | 385 | spi.write(0x40 | 8); // CMD8 |
ee12b079 | 86:a26f5f22631d | 386 | spi.write(0x00); // reserved |
ee12b079 | 86:a26f5f22631d | 387 | spi.write(0x00); // reserved |
ee12b079 | 86:a26f5f22631d | 388 | spi.write(0x01); // 3.3v |
ee12b079 | 86:a26f5f22631d | 389 | spi.write(0xAA); // check pattern |
ee12b079 | 86:a26f5f22631d | 390 | spi.write(0x87); // crc |
ee12b079 | 86:a26f5f22631d | 391 | |
ee12b079 | 86:a26f5f22631d | 392 | // wait for the repsonse (response[7] == 0) |
ee12b079 | 86:a26f5f22631d | 393 | for (int i = 0; i < SD_COMMAND_TIMEOUT * 1000; i++) { |
ee12b079 | 86:a26f5f22631d | 394 | char response[5]; |
ee12b079 | 86:a26f5f22631d | 395 | response[0] = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 396 | if (!(response[0] & 0x80)) { |
ee12b079 | 86:a26f5f22631d | 397 | for (int j = 1; j < 5; j++) { |
ee12b079 | 86:a26f5f22631d | 398 | response[i] = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 399 | } |
ee12b079 | 86:a26f5f22631d | 400 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 401 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 402 | return response[0]; |
ee12b079 | 86:a26f5f22631d | 403 | } |
ee12b079 | 86:a26f5f22631d | 404 | } |
ee12b079 | 86:a26f5f22631d | 405 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 406 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 407 | return -1; // timeout |
ee12b079 | 86:a26f5f22631d | 408 | } |
ee12b079 | 86:a26f5f22631d | 409 | |
ee12b079 | 86:a26f5f22631d | 410 | uint64_t sd_sectors() |
ee12b079 | 86:a26f5f22631d | 411 | { |
ee12b079 | 86:a26f5f22631d | 412 | uint32_t c_size, c_size_mult, read_bl_len; |
ee12b079 | 86:a26f5f22631d | 413 | uint32_t block_len, mult, blocknr, capacity; |
ee12b079 | 86:a26f5f22631d | 414 | uint32_t hc_c_size; |
ee12b079 | 86:a26f5f22631d | 415 | uint64_t blocks; |
ee12b079 | 86:a26f5f22631d | 416 | |
ee12b079 | 86:a26f5f22631d | 417 | // CMD9, Response R2 (R1 byte + 16-byte block read) |
ee12b079 | 86:a26f5f22631d | 418 | if (cmdx(9, 0) != 0) { |
ee12b079 | 86:a26f5f22631d | 419 | debug("\rDidn't get a response from the disk\n"); |
ee12b079 | 86:a26f5f22631d | 420 | return 0; |
ee12b079 | 86:a26f5f22631d | 421 | } |
ee12b079 | 86:a26f5f22631d | 422 | |
ee12b079 | 86:a26f5f22631d | 423 | uint8_t cs_sdd[16]; |
ee12b079 | 86:a26f5f22631d | 424 | if (read(cs_sdd, 16) != 0) { |
ee12b079 | 86:a26f5f22631d | 425 | debug("\rCouldn't read cs_sdd response from disk\n"); |
ee12b079 | 86:a26f5f22631d | 426 | return 0; |
ee12b079 | 86:a26f5f22631d | 427 | } |
ee12b079 | 86:a26f5f22631d | 428 | |
ee12b079 | 86:a26f5f22631d | 429 | // cs_sdd_structure : cs_sdd[127:126] |
ee12b079 | 86:a26f5f22631d | 430 | // c_size : cs_sdd[73:62] |
ee12b079 | 86:a26f5f22631d | 431 | // c_size_mult : cs_sdd[49:47] |
ee12b079 | 86:a26f5f22631d | 432 | // read_bl_len : cs_sdd[83:80] - the *maximum* read block length |
ee12b079 | 86:a26f5f22631d | 433 | |
ee12b079 | 86:a26f5f22631d | 434 | int cs_sdd_structure = ext_bits(cs_sdd, 127, 126); |
ee12b079 | 86:a26f5f22631d | 435 | |
ee12b079 | 86:a26f5f22631d | 436 | switch (cs_sdd_structure) { |
ee12b079 | 86:a26f5f22631d | 437 | case 0: |
ee12b079 | 86:a26f5f22631d | 438 | cdv = 512; |
ee12b079 | 86:a26f5f22631d | 439 | c_size = ext_bits(cs_sdd, 73, 62); |
ee12b079 | 86:a26f5f22631d | 440 | c_size_mult = ext_bits(cs_sdd, 49, 47); |
ee12b079 | 86:a26f5f22631d | 441 | read_bl_len = ext_bits(cs_sdd, 83, 80); |
ee12b079 | 86:a26f5f22631d | 442 | |
ee12b079 | 86:a26f5f22631d | 443 | block_len = 1 << read_bl_len; |
ee12b079 | 86:a26f5f22631d | 444 | mult = 1 << (c_size_mult + 2); |
ee12b079 | 86:a26f5f22631d | 445 | blocknr = (c_size + 1) * mult; |
ee12b079 | 86:a26f5f22631d | 446 | capacity = blocknr * block_len; |
ee12b079 | 86:a26f5f22631d | 447 | blocks = capacity / 512; |
ee12b079 | 86:a26f5f22631d | 448 | 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 | 449 | break; |
ee12b079 | 86:a26f5f22631d | 450 | |
ee12b079 | 86:a26f5f22631d | 451 | case 1: |
ee12b079 | 86:a26f5f22631d | 452 | cdv = 1; |
ee12b079 | 86:a26f5f22631d | 453 | hc_c_size = ext_bits(cs_sdd, 63, 48); |
ee12b079 | 86:a26f5f22631d | 454 | blocks = (hc_c_size+1)*1024; |
ee12b079 | 86:a26f5f22631d | 455 | 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 | 456 | break; |
ee12b079 | 86:a26f5f22631d | 457 | |
ee12b079 | 86:a26f5f22631d | 458 | default: |
ee12b079 | 86:a26f5f22631d | 459 | debug("cs_sdD struct unsupported\r\n"); |
ee12b079 | 86:a26f5f22631d | 460 | return 0; |
ee12b079 | 86:a26f5f22631d | 461 | }; |
ee12b079 | 86:a26f5f22631d | 462 | return blocks; |
ee12b079 | 86:a26f5f22631d | 463 | } |
ee12b079 | 86:a26f5f22631d | 464 | |
ee12b079 | 86:a26f5f22631d | 465 | int cmdx(int cmd, int arg) |
ee12b079 | 86:a26f5f22631d | 466 | { |
ee12b079 | 86:a26f5f22631d | 467 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 468 | |
ee12b079 | 86:a26f5f22631d | 469 | // send a command |
ee12b079 | 86:a26f5f22631d | 470 | spi.write(0x40 | cmd); |
ee12b079 | 86:a26f5f22631d | 471 | spi.write(arg >> 24); |
ee12b079 | 86:a26f5f22631d | 472 | spi.write(arg >> 16); |
ee12b079 | 86:a26f5f22631d | 473 | spi.write(arg >> 8); |
ee12b079 | 86:a26f5f22631d | 474 | spi.write(arg >> 0); |
ee12b079 | 86:a26f5f22631d | 475 | spi.write(0x95); |
ee12b079 | 86:a26f5f22631d | 476 | |
ee12b079 | 86:a26f5f22631d | 477 | // wait for the repsonse (response[7] == 0) |
ee12b079 | 86:a26f5f22631d | 478 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 479 | int response = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 480 | if (!(response & 0x80)) { |
ee12b079 | 86:a26f5f22631d | 481 | return response; |
ee12b079 | 86:a26f5f22631d | 482 | } |
ee12b079 | 86:a26f5f22631d | 483 | } |
ee12b079 | 86:a26f5f22631d | 484 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 485 | spi.write(0xFF); |
ee12b079 | 194:ab528911780d | 486 | return 1; // timeout |
ee12b079 | 86:a26f5f22631d | 487 | } |
ee12b079 | 86:a26f5f22631d | 488 | |
ee12b079 | 86:a26f5f22631d | 489 | static uint32_t ext_bits(unsigned char *data, int msb, int lsb) |
ee12b079 | 86:a26f5f22631d | 490 | { |
ee12b079 | 86:a26f5f22631d | 491 | uint32_t bits = 0; |
ee12b079 | 86:a26f5f22631d | 492 | uint32_t size = 1 + msb - lsb; |
ee12b079 | 86:a26f5f22631d | 493 | for (int i = 0; i < size; i++) { |
ee12b079 | 86:a26f5f22631d | 494 | uint32_t position = lsb + i; |
ee12b079 | 86:a26f5f22631d | 495 | uint32_t byte = 15 - (position >> 3); |
ee12b079 | 86:a26f5f22631d | 496 | uint32_t bit = position & 0x7; |
ee12b079 | 86:a26f5f22631d | 497 | uint32_t value = (data[byte] >> bit) & 1; |
ee12b079 | 86:a26f5f22631d | 498 | bits |= value << i; |
ee12b079 | 86:a26f5f22631d | 499 | } |
ee12b079 | 86:a26f5f22631d | 500 | return bits; |
ee12b079 | 86:a26f5f22631d | 501 | } |
ee12b079 | 86:a26f5f22631d | 502 | |
ee12b079 | 86:a26f5f22631d | 503 | int disk_write(const uint8_t *buffer, uint64_t block_number) |
ee12b079 | 86:a26f5f22631d | 504 | |
ee12b079 | 86:a26f5f22631d | 505 | { |
ee12b079 | 86:a26f5f22631d | 506 | // set write address for single block (CMD24) |
ee12b079 | 86:a26f5f22631d | 507 | if (cmd(24, block_number * cdv) != 0) { |
chaithanyarss | 303:b49b486a7107 | 508 | CDMS_WR_SD_FAULT_COUNTER++; |
ee12b079 | 86:a26f5f22631d | 509 | return 1; |
ee12b079 | 86:a26f5f22631d | 510 | } |
chaithanyarss | 327:5a967a66c10f | 511 | |
ee12b079 | 209:63e9c8f8b5d2 | 512 | uint64_t temp; |
ee12b079 | 209:63e9c8f8b5d2 | 513 | int r = write(buffer, 512); |
chaithanyarss | 327:5a967a66c10f | 514 | if(r == 0 ) { |
ee12b079 | 209:63e9c8f8b5d2 | 515 | temp = FCTN_CDMS_RD_RTC(); |
spacelab | 313:5d06a08baf0e | 516 | TIME_LATEST_SD_WR = temp >> 7; //corrected by samp:TIME_LATEST_SD_WRD = temp >> 7; |
ee12b079 | 209:63e9c8f8b5d2 | 517 | } |
ee12b079 | 209:63e9c8f8b5d2 | 518 | return r; |
ee12b079 | 86:a26f5f22631d | 519 | } |
ee12b079 | 86:a26f5f22631d | 520 | |
ee12b079 | 86:a26f5f22631d | 521 | int write(const uint8_t*buffer, uint32_t length) |
ee12b079 | 86:a26f5f22631d | 522 | { |
ee12b079 | 86:a26f5f22631d | 523 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 524 | |
ee12b079 | 86:a26f5f22631d | 525 | // indicate start of block |
ee12b079 | 86:a26f5f22631d | 526 | spi.write(0xFE); |
ee12b079 | 86:a26f5f22631d | 527 | |
ee12b079 | 86:a26f5f22631d | 528 | // write the data |
ee12b079 | 86:a26f5f22631d | 529 | for (int i = 0; i < length; i++) { |
ee12b079 | 86:a26f5f22631d | 530 | spi.write(buffer[i]); |
ee12b079 | 86:a26f5f22631d | 531 | } |
ee12b079 | 86:a26f5f22631d | 532 | |
ee12b079 | 86:a26f5f22631d | 533 | // write the checksum |
ee12b079 | 86:a26f5f22631d | 534 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 535 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 536 | |
ee12b079 | 86:a26f5f22631d | 537 | // check the response token |
ee12b079 | 86:a26f5f22631d | 538 | if ((spi.write(0xFF) & 0x1F) != 0x05) { |
ee12b079 | 86:a26f5f22631d | 539 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 540 | spi.write(0xFF); |
chaithanyarss | 303:b49b486a7107 | 541 | CDMS_WR_SD_FAULT_COUNTER++; |
ee12b079 | 86:a26f5f22631d | 542 | return 1; |
ee12b079 | 86:a26f5f22631d | 543 | } |
ee12b079 | 86:a26f5f22631d | 544 | |
ee12b079 | 86:a26f5f22631d | 545 | // wait for write to finish |
ee12b079 | 86:a26f5f22631d | 546 | while (spi.write(0xFF) == 0); |
ee12b079 | 86:a26f5f22631d | 547 | |
ee12b079 | 86:a26f5f22631d | 548 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 549 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 550 | return 0; |
ee12b079 | 86:a26f5f22631d | 551 | } |
ee12b079 | 86:a26f5f22631d | 552 | |
ee12b079 | 86:a26f5f22631d | 553 | int disk_read(uint8_t *buffer, uint64_t block_number) |
ee12b079 | 86:a26f5f22631d | 554 | { |
ee12b079 | 86:a26f5f22631d | 555 | // set read address for single block (CMD17) |
ee12b079 | 86:a26f5f22631d | 556 | if (cmd(17, block_number * cdv) != 0) { |
ee12b079 | 209:63e9c8f8b5d2 | 557 | SD_RD_ERROR = 1; |
ee12b079 | 86:a26f5f22631d | 558 | return 1; |
ee12b079 | 86:a26f5f22631d | 559 | } |
ee12b079 | 86:a26f5f22631d | 560 | |
ee12b079 | 86:a26f5f22631d | 561 | // receive the data |
ee12b079 | 86:a26f5f22631d | 562 | read(buffer, 512); |
ee12b079 | 209:63e9c8f8b5d2 | 563 | uint64_t temp = FCTN_CDMS_RD_RTC(); |
ee12b079 | 209:63e9c8f8b5d2 | 564 | TIME_LATEST_SD_RD = temp >> 7; |
ee12b079 | 86:a26f5f22631d | 565 | return 0; |
ee12b079 | 86:a26f5f22631d | 566 | } |
ee12b079 | 86:a26f5f22631d | 567 | |
ee12b079 | 86:a26f5f22631d | 568 | int read(uint8_t *buffer, uint32_t length) |
ee12b079 | 86:a26f5f22631d | 569 | { |
ee12b079 | 86:a26f5f22631d | 570 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 571 | |
ee12b079 | 86:a26f5f22631d | 572 | // read until start byte (0xFF) |
ee12b079 | 86:a26f5f22631d | 573 | while (spi.write(0xFF) != 0xFE); |
ee12b079 | 86:a26f5f22631d | 574 | |
ee12b079 | 86:a26f5f22631d | 575 | // read data |
ee12b079 | 86:a26f5f22631d | 576 | for (int i = 0; i < length; i++) { |
ee12b079 | 86:a26f5f22631d | 577 | buffer[i] = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 578 | } |
ee12b079 | 86:a26f5f22631d | 579 | spi.write(0xFF); // checksum |
ee12b079 | 86:a26f5f22631d | 580 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 581 | |
ee12b079 | 86:a26f5f22631d | 582 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 583 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 584 | return 0; |
ee12b079 | 86:a26f5f22631d | 585 | } |
ee12b079 | 86:a26f5f22631d | 586 | |
ee12b079 | 86:a26f5f22631d | 587 | int disk_erase(int startBlock, int totalBlocks) |
ee12b079 | 86:a26f5f22631d | 588 | { |
ee12b079 | 86:a26f5f22631d | 589 | if(cmd(32, startBlock * cdv) != 0) { |
ee12b079 | 86:a26f5f22631d | 590 | return 1; |
ee12b079 | 86:a26f5f22631d | 591 | } |
ee12b079 | 86:a26f5f22631d | 592 | if (cmd(33, (startBlock+totalBlocks-1) * cdv) != 0) { |
ee12b079 | 86:a26f5f22631d | 593 | return 1; |
ee12b079 | 86:a26f5f22631d | 594 | } |
ee12b079 | 86:a26f5f22631d | 595 | if (cmd(38,0) != 0) { |
ee12b079 | 86:a26f5f22631d | 596 | return 1; |
ee12b079 | 86:a26f5f22631d | 597 | } |
chaithanyarss | 327:5a967a66c10f | 598 | |
ee12b079 | 86:a26f5f22631d | 599 | return 0; //normal return |
ee12b079 | 209:63e9c8f8b5d2 | 600 | } |
ee12b079 | 209:63e9c8f8b5d2 | 601 | |
ee12b079 | 209:63e9c8f8b5d2 | 602 | int disk_read_statusbits(uint8_t *buffer) |
ee12b079 | 209:63e9c8f8b5d2 | 603 | { |
ee12b079 | 209:63e9c8f8b5d2 | 604 | if (cmd(17, 0) != 0) { |
chaithanyarss | 327:5a967a66c10f | 605 | SD_RD_ERROR = 1; |
ee12b079 | 209:63e9c8f8b5d2 | 606 | return -1; |
ee12b079 | 209:63e9c8f8b5d2 | 607 | } |
ee12b079 | 209:63e9c8f8b5d2 | 608 | |
ee12b079 | 209:63e9c8f8b5d2 | 609 | // receive the data |
ee12b079 | 209:63e9c8f8b5d2 | 610 | return read(buffer,64); |
chaithanyarss | 328:2242ebc71be8 | 611 | } |
chaithanyarss | 328:2242ebc71be8 | 612 | |
chaithanyarss | 328:2242ebc71be8 | 613 | #endif |