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| Rev 360 | Rev 362 | ||
|---|---|---|---|
| Line 130... | Line 130... | ||
| 130 | #define DATA_RESPONSE_MASK 0x1F |
130 | #define DATA_RESPONSE_MASK 0x1F |
| 131 | #define DATA_RESPONSE_OK 0x05 |
131 | #define DATA_RESPONSE_OK 0x05 |
| 132 | #define DATA_RESPONSE_CRC_ERR 0x0B |
132 | #define DATA_RESPONSE_CRC_ERR 0x0B |
| 133 | #define DATA_RESPONSE_WRITE_ERR 0x1D |
133 | #define DATA_RESPONSE_WRITE_ERR 0x1D |
| Line 134... | Line -... | ||
| 134 | - | ||
| 135 | typedef enum |
- | |
| 136 | { |
- | |
| 137 | VER_UNKNOWN, |
- | |
| 138 | VER_1X, |
- | |
| 139 | VER_20 |
- | |
| 140 | } SDVersion_t; |
- | |
| 141 | - | ||
| 142 | typedef struct |
- | |
| 143 | { |
- | |
| 144 | u8 Valid; |
- | |
| 145 | SDVersion_t Version; // HW-Version |
- | |
| 146 | u32 Capacity; // Memory capacity in bytes |
- | |
| 147 | u8 CID[16]; // CID register |
- | |
| 148 | u8 CSD[16]; // CSD register |
- | |
| 149 | } __attribute__((packed)) SDCardInfo_t; |
- | |
| 150 | 134 | ||
| Line 151... | Line 135... | ||
| 151 | volatile SDCardInfo_t SDCardInfo; |
135 | volatile SDCardInfo_t SDCardInfo; |
| 152 | 136 | ||
| Line 190... | Line 174... | ||
| 190 | timestamp = SetDelay(timeout); |
174 | timestamp = SetDelay(timeout); |
| 191 | do |
175 | do |
| 192 | { |
176 | { |
| 193 | rsp = SSC_GetChar(); |
177 | rsp = SSC_GetChar(); |
| 194 | if(CheckDelay(timestamp)) break; |
178 | if(CheckDelay(timestamp)) break; |
| 195 | }while(rsp != 0xFF); // wait while card is busy (data out low) |
179 | }while(rsp != 0xFF && (SD_WatchDog)); // wait while card is busy (data out low) |
| 196 | return(rsp); |
180 | return(rsp); |
| 197 | } |
181 | } |
| Line 233... | Line 217... | ||
| 233 | 217 | ||
| 234 | do |
218 | do |
| 235 | { |
219 | { |
| 236 | r1 = SSC_GetChar(); // get byte from sd-card |
220 | r1 = SSC_GetChar(); // get byte from sd-card |
| 237 | if (timeout++ >500) break; |
221 | if (timeout++ >500) break; |
| 238 | }while(r1 == 0xFF); // wait for the response byte from sd-card. |
222 | }while(r1 == 0xFF && (SD_WatchDog)); // wait for the response byte from sd-card. |
| 239 | return(r1); |
223 | return(r1); |
| Line 240... | Line 224... | ||
| 240 | } |
224 | } |
| Line 289... | Line 273... | ||
| 289 | if( ( (rsp & 0xF0) == 0x00 ) || CheckDelay(timeout) ) // data error token or timeout |
273 | if( ( (rsp & 0xF0) == 0x00 ) || CheckDelay(timeout) ) // data error token or timeout |
| 290 | { |
274 | { |
| 291 | result = SD_ERROR_READ_DATA; |
275 | result = SD_ERROR_READ_DATA; |
| 292 | goto end; |
276 | goto end; |
| 293 | } |
277 | } |
| 294 | }while(rsp != DATA_START_TOKEN); |
278 | }while(rsp != DATA_START_TOKEN && (SD_WatchDog)); |
| 295 | // data start token received |
279 | // data start token received |
| 296 | for (a = 0; a < len; a++) // read the block from the SSC |
280 | for (a = 0; a < len; a++) // read the block from the SSC |
| 297 | { |
281 | { |
| 298 | Buffer[a] = SSC_GetChar(); |
282 | Buffer[a] = SSC_GetChar(); |
| 299 | } |
283 | } |
| Line 756... | Line 740... | ||
| 756 | if(result != SD_SUCCESS) |
740 | if(result != SD_SUCCESS) |
| 757 | { |
741 | { |
| 758 | sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
742 | sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
| 759 | UART1_PutString(text); |
743 | UART1_PutString(text); |
| 760 | } |
744 | } |
| - | 745 | ||
| 761 | return(result); |
746 | return(result); |
| 762 | } |
747 | } |
| Line 763... | Line 748... | ||
| 763 | 748 | ||