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Rev 27 | Rev 41 | ||
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Line 55... | Line 55... | ||
55 | // + POSSIBILITY OF SUCH DAMAGE. |
55 | // + POSSIBILITY OF SUCH DAMAGE. |
56 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
56 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
57 | #include <stdio.h> |
57 | #include <stdio.h> |
58 | #include <string.h> |
58 | #include <string.h> |
59 | #include "91x_lib.h" |
59 | #include "91x_lib.h" |
60 | #include "uart.h" |
60 | #include "uart1.h" |
61 | #include "sdc.h" |
61 | #include "sdc.h" |
62 | #include "ssc.h" |
62 | #include "ssc.h" |
63 | #include "timer.h" |
63 | #include "timer.h" |
64 | #include "main.h" |
64 | #include "main.h" |
65 | #include "crc16.h" |
65 | #include "crc16.h" |
Line 179... | Line 179... | ||
179 | } |
179 | } |
180 | crc = (crc<<1)|1; // set terminating bit to 1 |
180 | crc = (crc<<1)|1; // set terminating bit to 1 |
181 | return(crc); |
181 | return(crc); |
182 | } |
182 | } |
Line 183... | Line 183... | ||
183 | 183 | ||
184 | u8 SDC_WaitForBusy() |
184 | u8 SDC_WaitForBusy(u32 timeout) |
185 | { |
185 | { |
186 | u8 rsp = 0; |
186 | u8 rsp = 0; |
Line 187... | Line 187... | ||
187 | u16 timeout=0; |
187 | u32 timestamp = 0; |
188 | 188 | ||
- | 189 | SSC_ClearRxFifo(); |
|
189 | SSC_ClearRxFifo(); |
190 | SSC_Enable(); // enable chipselect. |
190 | SSC_Enable(); // enable chipselect. |
191 | timestamp = SetDelay(timeout); |
191 | do |
192 | do |
192 | { |
193 | { |
193 | rsp = SSC_GetChar(); |
194 | rsp = SSC_GetChar(); |
194 | if(timeout++>500) break; |
195 | if(CheckDelay(timestamp)) break; |
195 | }while(rsp != 0xFF); // wait while card is busy (data out low) |
196 | }while(rsp != 0xFF); // wait while card is busy (data out low) |
Line 207... | Line 208... | ||
207 | // Returnvalue: The function returns the first response byte like for R1 commands |
208 | // Returnvalue: The function returns the first response byte like for R1 commands |
208 | //________________________________________________________________________________________________________________________________________ |
209 | //________________________________________________________________________________________________________________________________________ |
209 | u8 SDC_SendCMDR1(u8 CmdNo, u32 arg) |
210 | u8 SDC_SendCMDR1(u8 CmdNo, u32 arg) |
210 | { |
211 | { |
211 | u8 r1; |
212 | u8 r1; |
212 | u16 Timeout = 0; |
213 | u16 timeout = 0; |
213 | u16 a; |
214 | u16 a; |
214 | u8 cmd[6]; |
215 | u8 cmd[6]; |
Line 215... | Line 216... | ||
215 | 216 | ||
216 | SSC_ClearRxFifo(); // clear the rx fifo |
217 | SSC_ClearRxFifo(); // clear the rx fifo |
217 | SSC_Enable(); // enable chipselect. |
218 | SSC_Enable(); // enable chipselect. |
218 | SDC_WaitForBusy(); |
219 | SDC_WaitForBusy(500); // wait 500ms until card is busy |
219 | SSC_ClearRxFifo(); // clear the rx fifo |
220 | SSC_ClearRxFifo(); // clear the rx fifo |
Line 220... | Line -... | ||
220 | SSC_GetChar(); // dummy to sync |
- | |
221 | 221 | SSC_GetChar(); // dummy to sync |
|
222 | /* Send cmd10 (SEND_CID) */; |
222 | |
223 | cmd[0] = 0x40|CmdNo; // set command index |
223 | cmd[0] = 0x40|CmdNo; // set command index |
224 | cmd[1] = (arg & 0xFF000000)>>24; |
224 | cmd[1] = (arg & 0xFF000000)>>24; |
225 | cmd[2] = (arg & 0x00FF0000)>>16; |
225 | cmd[2] = (arg & 0x00FF0000)>>16; |
Line 229... | Line 229... | ||
229 | for (a = 0;a < 6; a++) // send the command sequence to the sdcard (6 bytes) |
229 | for (a = 0;a < 6; a++) // send the command sequence to the sdcard (6 bytes) |
230 | { |
230 | { |
231 | SSC_PutChar(cmd[a]); |
231 | SSC_PutChar(cmd[a]); |
232 | } |
232 | } |
233 | SSC_ClearRxFifo(); // clear the rx fifo to discard the bytes received during the transmission of the 6 command bytes |
233 | SSC_ClearRxFifo(); // clear the rx fifo to discard the bytes received during the transmission of the 6 command bytes |
- | 234 | ||
234 | do |
235 | do |
235 | { |
236 | { |
236 | r1 = SSC_GetChar(); // get byte from sd-card |
237 | r1 = SSC_GetChar(); // get byte from sd-card |
237 | if (Timeout++ > 500) return(r1); |
238 | if (timeout++ >500) break; |
238 | }while(r1 == 0xFF); // wait for the response byte from sd-card. |
239 | }while(r1 == 0xFF); // wait for the response byte from sd-card. |
239 | return(r1); |
240 | return(r1); |
240 | } |
241 | } |
Line 241... | Line 242... | ||
241 | 242 | ||
242 | 243 | ||
243 | //________________________________________________________________________________________________________________________________________ |
244 | //________________________________________________________________________________________________________________________________________ |
244 | // Function: SDC_SendACMDR1(u8 CmdNo, u32 arg); |
245 | // Function: SDC_SendACMDR1(u8 CmdNo, u32 arg); |
245 | // |
246 | // |
246 | // Description: This function send a application command frame to the SD-Card in spi-mode. |
247 | // Description: This function send a application command frame to the SD-Card in spi-mode. |
247 | // |
248 | // |
248 | // |
249 | // |
Line 268... | Line 269... | ||
268 | //________________________________________________________________________________________________________________________________________ |
269 | //________________________________________________________________________________________________________________________________________ |
Line 269... | Line 270... | ||
269 | 270 | ||
270 | SD_Result_t SDC_GetData(u8 CmdNo, u32 addr, u8 *Buffer, u32 len) |
271 | SD_Result_t SDC_GetData(u8 CmdNo, u32 addr, u8 *Buffer, u32 len) |
271 | { |
272 | { |
272 | u8 rsp; |
- | |
273 | u16 timeout; |
273 | u8 rsp; |
274 | u16 a, Crc16; |
274 | u16 a, crc16; |
Line 275... | Line 275... | ||
275 | SD_Result_t result = SD_ERROR_UNKNOWN; |
275 | SD_Result_t result = SD_ERROR_UNKNOWN; |
276 | 276 | ||
277 | // send the command |
277 | // send the command |
Line 288... | Line 288... | ||
288 | if((rsp & 0xF0) == 0x00) // data error token |
288 | if((rsp & 0xF0) == 0x00) // data error token |
289 | { |
289 | { |
290 | result = SD_ERROR_READ_DATA; |
290 | result = SD_ERROR_READ_DATA; |
291 | goto end; |
291 | goto end; |
292 | } |
292 | } |
293 | // if(timeout++>500) break; |
- | |
294 | }while(rsp != DATA_START_TOKEN); |
293 | }while(rsp != DATA_START_TOKEN); |
295 | // data start token received |
294 | // data start token received |
296 | for (a = 0; a < len; a++) // read the block from the SSC |
295 | for (a = 0; a < len; a++) // read the block from the SSC |
297 | { |
296 | { |
298 | Buffer[a] = SSC_GetChar(); |
297 | Buffer[a] = SSC_GetChar(); |
299 | } |
298 | } |
300 | // Read two bytes CRC16-Data checksum |
299 | // Read two bytes CRC16-Data checksum |
301 | Crc16 = SSC_GetChar(); // highbyte fisrt |
300 | crc16 = SSC_GetChar(); // highbyte fisrt |
302 | Crc16 = (Crc16<<8)|SSC_GetChar(); // lowbyte last |
301 | crc16 = (crc16<<8)|SSC_GetChar(); // lowbyte last |
303 | // if(Crc16 != CRC16(Buffer, len)) result = SD_ERROR_CRC_DATA; |
302 | /* if(crc16 != CRC16(Buffer, len)) result = SD_ERROR_CRC_DATA; |
304 | /* else */result = SD_SUCCESS; |
303 | else */result = SD_SUCCESS; |
Line 305... | Line 304... | ||
305 | 304 | ||
306 | end: |
- | |
307 | //SSC_Disable(); // disable sdcard. |
305 | end: |
308 | if(result != SD_SUCCESS) |
306 | if(result != SD_SUCCESS) |
309 | { |
307 | { |
310 | sprintf(text,"Error %02X reading data from sd card (R1=%02X).\r\n", result, rsp); |
308 | sprintf(text,"Error %02X reading data from sd card (R1=%02X).\r\n", result, rsp); |
311 | SerialPutString(text); |
309 | SerialPutString(text); |
Line 327... | Line 325... | ||
327 | { |
325 | { |
328 | u8 text[50]; |
326 | u8 text[50]; |
329 | u8 pn[6]; |
327 | u8 pn[6]; |
330 | u16 temp1, temp2; |
328 | u16 temp1, temp2; |
Line 331... | Line 329... | ||
331 | 329 | ||
332 | sprintf(text, "\r\nManufacturer ID: %i\r\n", pCID[0]); |
330 | sprintf(text, "\r\n Manufacturer ID: %i\r\n", pCID[0]); |
333 | SerialPutString(text); |
331 | SerialPutString(text); |
334 | memcpy(pn, &pCID[1], 2); |
332 | memcpy(pn, &pCID[1], 2); |
335 | pn[2] = '\0'; // terminate string |
333 | pn[2] = '\0'; // terminate string |
336 | sprintf(text, "Application ID: %s\r\n",pn); |
334 | sprintf(text, " Application ID: %s\r\n",pn); |
337 | SerialPutString(text); |
335 | SerialPutString(text); |
338 | memcpy(pn, &pCID[3], 5); |
336 | memcpy(pn, &pCID[3], 5); |
339 | pn[5] = '\0'; // terminate string |
337 | pn[5] = '\0'; // terminate string |
340 | sprintf(text, "Product Name: %s\r\n",pn); |
338 | sprintf(text, " Product Name: %s\r\n",pn); |
341 | SerialPutString(text); |
339 | SerialPutString(text); |
342 | sprintf(text, "Product Rev.: %i.%i\r\n",pCID[8]>>4, pCID[8]&0xF); |
340 | sprintf(text, " Product Rev.: %i.%i\r\n",pCID[8]>>4, pCID[8]&0xF); |
343 | SerialPutString(text); |
341 | SerialPutString(text); |
344 | SerialPutString("Serial No.: "); |
342 | SerialPutString(" Serial No.: "); |
345 | for(temp1 = 0; temp1<4; temp1++) |
343 | for(temp1 = 0; temp1<4; temp1++) |
346 | { |
344 | { |
347 | sprintf(text,"%02X", pCID[9+temp1]); |
345 | sprintf(text,"%02X", pCID[9+temp1]); |
348 | SerialPutString(text); |
346 | SerialPutString(text); |
349 | } |
347 | } |
350 | SerialPutString("\r\n"); |
348 | SerialPutString("\r\n"); |
351 | temp1 = pCID[14] & 0x0F; // month |
349 | temp1 = pCID[14] & 0x0F; // month |
352 | temp2 = ((pCID[14]>>4)|(pCID[13]<<4)) + 2000; // year |
350 | temp2 = ((pCID[14]>>4)|(pCID[13]<<4)) + 2000; // year |
353 | sprintf(text, "Manufac. Date: %i/%i\r\n\r\n",temp1, temp2); |
351 | sprintf(text, " Manufac. Date: %i/%i\r\n\r\n",temp1, temp2); |
354 | SerialPutString(text); |
352 | SerialPutString(text); |
Line 355... | Line 353... | ||
355 | } |
353 | } |
356 | 354 | ||
Line 392... | Line 390... | ||
392 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
390 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
393 | //________________________________________________________________________________________________________________________________________ |
391 | //________________________________________________________________________________________________________________________________________ |
Line 394... | Line 392... | ||
394 | 392 | ||
395 | SD_Result_t SDC_Init(void) |
393 | SD_Result_t SDC_Init(void) |
396 | { |
394 | { |
397 | u32 Timeout = 0; |
395 | u32 timeout = 0; |
398 | u8 text[50]; |
396 | u8 text[50]; |
399 | u8 rsp[6]; // SD-SPI response buffer |
397 | u8 rsp[6]; // SD-SPI response buffer |
Line 400... | Line 398... | ||
400 | SD_Result_t result = SD_ERROR_UNKNOWN; |
398 | SD_Result_t result = SD_ERROR_UNKNOWN; |
401 | 399 | ||
402 | if(SD_SWITCH) // init only if the SD-Switch is indicating a card in the slot |
400 | if(SD_SWITCH) // init only if the SD-Switch is indicating a card in the slot |
403 | { |
401 | { |
404 | SerialPutString("\r\n SSC init..."); |
402 | SerialPutString("\r\n SSC init..."); |
405 | SSC_Init(); |
403 | SSC_Init(); |
406 | SerialPutString("ok"); |
404 | SerialPutString("ok"); |
407 | 405 | ||
408 | SerialPutString("\r\n SDC init..."); |
406 | SerialPutString("\r\n SDC init..."); |
409 | SDCardInfo.Valid = 0; |
407 | SDCardInfo.Valid = 0; |
410 | /* The host shall supply power to the card so that the voltage is reached to Vdd_min within 250ms and |
408 | /* The host shall supply power to the card so that the voltage is reached to Vdd_min within 250ms and |
411 | start to supply at least 74 SD clocks to the SD card with keeping cmd line to high. In case of SPI |
409 | start to supply at least 74 SD clocks to the SD card with keeping cmd line to high. In case of SPI |
412 | mode, CS shall be held to high during 74 clock cycles. */ |
410 | mode, CS shall be held to high during 74 clock cycles. */ |
Line 413... | Line 411... | ||
413 | SSC_Disable(); // set SD_CS high |
411 | SSC_Disable(); // set SD_CS high |
414 | SSC_ClearRxFifo(); // clear the rx fifo |
412 | SSC_ClearRxFifo(); // clear the rx fifo |
415 | 413 | ||
416 | for (Timeout = 0; Timeout < 15; Timeout++) // 15*8 = 120 cycles |
414 | for (timeout = 0; timeout < 15; timeout++) // 15*8 = 120 cycles |
Line 417... | Line 415... | ||
417 | { |
415 | { |
418 | SSC_PutChar(0xFF); |
416 | SSC_PutChar(0xFF); |
419 | } |
417 | } |
420 | 418 | ||
421 | // switch to idle state |
419 | // switch to idle state |
422 | while(SDC_SendCMDR1(CMD_GO_IDLE_STATE, 0UL) != R1_IDLE_STATE) |
420 | while(SDC_SendCMDR1(CMD_GO_IDLE_STATE, 0UL) != R1_IDLE_STATE) |
423 | { |
421 | { |
424 | if (Timeout++ > 20) |
422 | if (timeout++ > 20) |
425 | { |
423 | { |
426 | SerialPutString("reset timeout"); |
424 | SerialPutString("reset timeout"); |
427 | result = SD_ERROR_RESET; |
425 | result = SD_ERROR_RESET; |
428 | goto end; |
426 | goto end; |
429 | } |
427 | } |
430 | } |
428 | } |
431 | // enable crc feature |
429 | // enable crc feature |
432 | /* if(SDC_SendCMDR1(CMD_CRC_ON_OFF, 1UL) != R1_IDLE_STATE) |
430 | /* if(SDC_SendCMDR1(CMD_CRC_ON_OFF, 1UL) != R1_IDLE_STATE) |
433 | { |
431 | { |
434 | sprintf(text,"Bad cmd59 R1=%02X.\r\n", rsp[0]); |
432 | sprintf(text,"Bad cmd59 R1=%02X.", rsp[0]); |
435 | SerialPutString(text); |
433 | SerialPutString(text); |
436 | result = SD_ERROR_BAD_RESPONSE; |
434 | result = SD_ERROR_BAD_RESPONSE; |
437 | goto end; |
435 | goto end; |
438 | }*/ |
436 | }*/ |
439 | // check for card hw version |
437 | // check for card hw version |
440 | // 2.7-3.6V Range = 0x01, check pattern 0xAA |
438 | // 2.7-3.6V Range = 0x01, check pattern 0xAA |
441 | rsp[0] = SDC_SendCMDR1(CMD_SEND_IF_COND, 0x000001AA); |
439 | rsp[0] = SDC_SendCMDR1(CMD_SEND_IF_COND, 0x000001AA); |
442 | // answer to cmd58 is an R7 response (R1+ 4Byte IFCond) |
440 | // answer to cmd58 is an R7 response (R1+ 4Byte IFCond) |
443 | if(rsp[0] & R1_BAD_RESPONSE) |
441 | if(rsp[0] & R1_BAD_RESPONSE) |
444 | { |
442 | { |
445 | sprintf(text,"Bad cmd8 R1=%02X.\r\n", rsp[0]); |
443 | sprintf(text,"Bad cmd8 R1=%02X.", rsp[0]); |
446 | SerialPutString(text); |
444 | SerialPutString(text); |
Line 455... | Line 453... | ||
455 | else |
453 | else |
456 | { |
454 | { |
457 | // Ver2.00 or later SD Memory Card |
455 | // Ver2.00 or later SD Memory Card |
458 | // reading the remaining bytes of the R7 response |
456 | // reading the remaining bytes of the R7 response |
459 | SDCardInfo.Version = VER_20; |
457 | SDCardInfo.Version = VER_20; |
460 | for(Timeout = 1; Timeout < 5; Timeout++) |
458 | for(timeout = 1; timeout < 5; timeout++) |
461 | { |
459 | { |
462 | rsp[Timeout] = SSC_GetChar(); |
460 | rsp[timeout] = SSC_GetChar(); |
463 | } |
461 | } |
464 | //check pattern |
462 | //check pattern |
465 | if(rsp[4]!= 0xAA) |
463 | if(rsp[4]!= 0xAA) |
466 | { |
464 | { |
467 | SerialPutString("Bad cmd8 R7 check pattern.\r\n"); |
465 | SerialPutString("Bad cmd8 R7 check pattern.\r\n"); |
Line 479... | Line 477... | ||
479 | 477 | ||
480 | rsp[0] = SDC_SendCMDR1(CMD_READ_OCR, 0UL); |
478 | rsp[0] = SDC_SendCMDR1(CMD_READ_OCR, 0UL); |
481 | // answer to cmd58 is an R3 response (R1 + 4Byte OCR) |
479 | // answer to cmd58 is an R3 response (R1 + 4Byte OCR) |
482 | if(rsp[0] & R1_BAD_RESPONSE) |
480 | if(rsp[0] & R1_BAD_RESPONSE) |
483 | { |
481 | { |
484 | sprintf(text,"Bad cmd58 R1 %02x.\r\n", rsp[0]); |
482 | sprintf(text,"Bad cmd58 R1 %02x.", rsp[0]); |
485 | SerialPutString(text); |
483 | SerialPutString(text); |
486 | result = SD_ERROR_BAD_RESPONSE; |
484 | result = SD_ERROR_BAD_RESPONSE; |
487 | goto end; |
485 | goto end; |
488 | } |
486 | } |
489 | if(rsp[0] & R1_ILLEGAL_CMD) |
487 | if(rsp[0] & R1_ILLEGAL_CMD) |
490 | { |
488 | { |
491 | SerialPutString("Not an SD-CARD.\r\n"); |
489 | SerialPutString("Not an SD-CARD."); |
492 | result = SD_ERROR_NO_SDCARD; |
490 | result = SD_ERROR_NO_SDCARD; |
493 | goto end; |
491 | goto end; |
494 | } |
492 | } |
495 | // read 4 bytes of OCR register |
493 | // read 4 bytes of OCR register |
496 | for(Timeout = 1; Timeout < 5; Timeout++) |
494 | for(timeout = 1; timeout < 5; timeout++) |
497 | { |
495 | { |
498 | rsp[Timeout] = SSC_GetChar(); |
496 | rsp[timeout] = SSC_GetChar(); |
499 | } |
497 | } |
500 | // NavicCtrl uses 3.3 V, therefore check for bit 20 & 21 |
498 | // NavicCtrl uses 3.3 V, therefore check for bit 20 & 21 |
501 | if((rsp[2] & 0x30) != 0x30) |
499 | if((rsp[2] & 0x30) != 0x30) |
502 | { |
500 | { |
503 | // supply voltage is not supported by sd-card |
501 | // supply voltage is not supported by sd-card |
504 | SerialPutString("Card is incompatible to 3.3V.\r\n"); |
502 | SerialPutString("Card is incompatible to 3.3V."); |
505 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
503 | result = SD_ERROR_BAD_VOLTAGE_RANGE; |
506 | goto end; |
504 | goto end; |
Line 507... | Line 505... | ||
507 | } |
505 | } |
508 | 506 | ||
509 | // Initialize the sd-card sending continously ACMD_SEND_OP_COND (only supported by SD cards) |
507 | // Initialize the sd-card sending continously ACMD_SEND_OP_COND (only supported by SD cards) |
510 | Timeout = SetDelay(2000); // set timeout to 2000 ms (large cards tend to longer) |
508 | timeout = SetDelay(2000); // set timeout to 2000 ms (large cards tend to longer) |
511 | do |
509 | do |
512 | { |
510 | { |
513 | rsp[0] = SDC_SendACMDR1(ACMD_SEND_OP_COND, 0UL); |
511 | rsp[0] = SDC_SendACMDR1(ACMD_SEND_OP_COND, 0UL); |
514 | if(rsp[0] & R1_BAD_RESPONSE) |
512 | if(rsp[0] & R1_BAD_RESPONSE) |
515 | { |
513 | { |
516 | sprintf(text,"Bad Acmd41 R1=%02X.\r\n", rsp[0]); |
514 | sprintf(text,"Bad Acmd41 R1=%02X.", rsp[0]); |
517 | SerialPutString(text); |
515 | SerialPutString(text); |
518 | result = SD_ERROR_BAD_RESPONSE; |
516 | result = SD_ERROR_BAD_RESPONSE; |
519 | goto end; |
517 | goto end; |
520 | } |
518 | } |
521 | if(CheckDelay(Timeout)) |
519 | if(CheckDelay(timeout)) |
522 | { |
520 | { |
523 | SerialPutString("Init timeout.\r\n"); |
521 | SerialPutString("Init timeout."); |
524 | result = SD_ERROR_INITIALIZE; |
522 | result = SD_ERROR_INITIALIZE; |
525 | goto end; |
523 | goto end; |
Line 526... | Line 524... | ||
526 | } |
524 | } |
527 | } while(rsp[0] & R1_IDLE_STATE); // loop until idle state |
525 | } while(rsp[0] & R1_IDLE_STATE); // loop until idle state |
528 | 526 | ||
529 | if(rsp[0] != R1_NO_ERR) |
527 | if(rsp[0] != R1_NO_ERR) |
530 | { |
528 | { |
531 | SerialPutString("Init error.\r\n"); |
529 | SerialPutString("Init error."); |
532 | result = SD_ERROR_INITIALIZE; |
530 | result = SD_ERROR_INITIALIZE; |
533 | goto end; |
531 | goto end; |
534 | } |
532 | } |
535 | /* set block size to 512 bytes */ |
533 | /* set block size to 512 bytes */ |
536 | if(SDC_SendCMDR1(CMD_SET_BLOCKLEN, 512UL) != R1_NO_ERR) |
534 | if(SDC_SendCMDR1(CMD_SET_BLOCKLEN, 512UL) != R1_NO_ERR) |
537 | { |
535 | { |
538 | SerialPutString("Error setting block length to 512.\r\n"); |
536 | SerialPutString("Error setting block length to 512."); |
539 | result = SD_ERROR_SET_BLOCKLEN; |
- | |
540 | goto end; |
537 | result = SD_ERROR_SET_BLOCKLEN; |
541 | } |
538 | goto end; |
542 | 539 | } |
|
543 | 540 | ||
Line 544... | Line 541... | ||
544 | //SSC_Disable(); // set SD_CS high |
541 | //SSC_Disable(); // set SD_CS high |
545 | // here is the right place to inrease the SPI boud rate to maximum |
542 | // here is the right place to inrease the SPI boud rate to maximum |
Line 555... | Line 552... | ||
555 | 552 | ||
556 | // read CSD register |
553 | // read CSD register |
557 | result = SDC_GetCSD((u8 *)&SDCardInfo.CSD); |
554 | result = SDC_GetCSD((u8 *)&SDCardInfo.CSD); |
558 | if(result != SD_SUCCESS) |
555 | if(result != SD_SUCCESS) |
559 | { |
556 | { |
560 | SerialPutString("Error reading CSD.\r\n"); |
557 | SerialPutString("Error reading CSD."); |
561 | goto end; |
558 | goto end; |
Line 562... | Line 559... | ||
562 | } |
559 | } |
Line 599... | Line 596... | ||
599 | 596 | ||
600 | c_size = ((u32)(SDCardInfo.CSD[7] & 0x3F))<<16; //CSD[07] -> [71:64] |
597 | c_size = ((u32)(SDCardInfo.CSD[7] & 0x3F))<<16; //CSD[07] -> [71:64] |
601 | c_size |= ((u32)SDCardInfo.CSD[8])<<8; //CSD[08] -> [63:56] |
598 | c_size |= ((u32)SDCardInfo.CSD[8])<<8; //CSD[08] -> [63:56] |
602 | c_size |= (u32)SDCardInfo.CSD[9]; //CSD[09] -> [55:48]; |
599 | c_size |= (u32)SDCardInfo.CSD[9]; //CSD[09] -> [55:48]; |
603 | SDCardInfo.Capacity = (c_size + 1)* 512L * 1024L; |
600 | SDCardInfo.Capacity = (c_size + 1)* 512L * 1024L; |
- | 601 | break; |
|
604 | break; |
602 | |
605 | default: //unknown CSD Version |
603 | default: //unknown CSD Version |
606 | SDCardInfo.Capacity = 0; |
604 | SDCardInfo.Capacity = 0; |
607 | break; |
605 | break; |
Line 608... | Line 606... | ||
608 | } |
606 | } |
Line 619... | Line 617... | ||
619 | } |
617 | } |
620 | u16 mb_size = (u16)(SDCardInfo.Capacity/(1024L*1024L)); |
618 | u16 mb_size = (u16)(SDCardInfo.Capacity/(1024L*1024L)); |
621 | sprintf(text, "\r\n Capacity = %i MB", mb_size); |
619 | sprintf(text, "\r\n Capacity = %i MB", mb_size); |
622 | SerialPutString(text); |
620 | SerialPutString(text); |
Line 623... | Line 621... | ||
623 | 621 | ||
624 | // SDC_PrintCID((u8 *)&SDCardInfo.CID); |
622 | SDC_PrintCID((u8 *)&SDCardInfo.CID); |
625 | SDCardInfo.Valid = 1; |
- | |
626 | 623 | SDCardInfo.Valid = 1; |
|
627 | // jump point for error condition before |
624 | // jump point for error condition before |
628 | end: |
625 | end: |
629 | SSC_Disable(); |
626 | SSC_Disable(); |
630 | } |
627 | } |
631 | else |
628 | else |
632 | { |
- | |
633 | //SerialPutString("\r\nNo Card in Slot."); |
629 | { |
634 | SSC_Deinit(); |
630 | SSC_Deinit(); |
635 | SDCardInfo.Valid = 0; |
631 | SDCardInfo.Valid = 0; |
- | 632 | result = SD_ERROR_NOCARD; |
|
636 | result = SD_ERROR_NOCARD; |
633 | SerialPutString("No Card in Slot."); |
637 | } |
- | |
638 | // if(result != SD_SUCCESS) SerialPutString("nok "); |
- | |
639 | 634 | } |
|
640 | return(result); |
635 | return(result); |
Line 641... | Line 636... | ||
641 | } |
636 | } |
Line 650... | Line 645... | ||
650 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
645 | // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
651 | //________________________________________________________________________________________________________________________________________ |
646 | //________________________________________________________________________________________________________________________________________ |
Line 652... | Line 647... | ||
652 | 647 | ||
653 | SD_Result_t SDC_Deinit(void) |
648 | SD_Result_t SDC_Deinit(void) |
654 | { |
649 | { |
655 | SerialPutString("SDC deinit..."); |
650 | SerialPutString("\r\n SDC deinit..."); |
Line 656... | Line 651... | ||
656 | SSC_Deinit(); |
651 | SSC_Deinit(); |
657 | 652 | ||
658 | SDCardInfo.Valid = 0; |
653 | SDCardInfo.Valid = 0; |
Line 659... | Line 654... | ||
659 | SDCardInfo.Capacity = 0; |
654 | SDCardInfo.Capacity = 0; |
660 | SDCardInfo.Version = VER_UNKNOWN; |
655 | SDCardInfo.Version = VER_UNKNOWN; |
661 | 656 | ||
Line 662... | Line 657... | ||
662 | SerialPutString("ok\r\n"); |
657 | SerialPutString("ok"); |
Line 674... | Line 669... | ||
674 | //________________________________________________________________________________________________________________________________________ |
669 | //________________________________________________________________________________________________________________________________________ |
Line 675... | Line 670... | ||
675 | 670 | ||
676 | SD_Result_t SDC_PutSector(u32 addr, const u8 *Buffer) |
671 | SD_Result_t SDC_PutSector(u32 addr, const u8 *Buffer) |
677 | { |
672 | { |
- | 673 | u8 rsp; |
|
678 | u8 rsp; |
674 | u16 a, crc16; |
679 | u16 timeout = 0; |
- | |
680 | u16 a, Crc16; |
- | |
681 | //u32 Timeout = 0; |
675 | u16 timeout = 0; |
Line 682... | Line 676... | ||
682 | SD_Result_t result = SD_ERROR_UNKNOWN; |
676 | SD_Result_t result = SD_ERROR_UNKNOWN; |
683 | 677 | ||
684 | addr = addr << 9; // convert sectoradress to byteadress |
678 | addr = addr << 9; // convert sectoradress to byteadress |
Line 691... | Line 685... | ||
691 | SSC_ClearRxFifo(); |
685 | SSC_ClearRxFifo(); |
692 | for (a=0;a<20;a++) // at least one byte |
686 | for (a=0;a<20;a++) // at least one byte |
693 | { |
687 | { |
694 | SSC_GetChar(); |
688 | SSC_GetChar(); |
695 | } |
689 | } |
696 | Crc16 = CRC16(Buffer, 512); // calc checksum for data block |
690 | crc16 = CRC16(Buffer, 512); // calc checksum for data block |
697 | SSC_PutChar(DATA_START_TOKEN); // send data start of header to the SSC |
691 | SSC_PutChar(DATA_START_TOKEN); // send data start of header to the SSC |
Line 698... | Line 692... | ||
698 | 692 | ||
699 | for (a=0;a<512;a++) // transmit one sector (normaly 512bytes) of data to the sdcard. |
693 | for (a=0;a<512;a++) // transmit one sector (normaly 512bytes) of data to the sdcard. |
700 | { |
694 | { |
701 | SSC_PutChar(Buffer[a]); |
695 | SSC_PutChar(Buffer[a]); |
702 | } |
696 | } |
703 | // write two bytes of crc16 to the sdcard |
697 | // write two bytes of crc16 to the sdcard |
704 | SSC_PutChar((u8)(Crc16>>8)); // write high byte first |
698 | SSC_PutChar((u8)(crc16>>8)); // write high byte first |
705 | SSC_PutChar((u8)(0x00FF&Crc16)); // lowbyte last |
699 | SSC_PutChar((u8)(0x00FF&crc16)); // lowbyte last |
706 | SSC_ClearRxFifo(); |
700 | SSC_ClearRxFifo(); |
707 | do // wait for data response token |
701 | do // wait for data response token |
708 | { |
702 | { |
709 | rsp = SSC_GetChar(); |
703 | rsp = SSC_GetChar(); |
- | 704 | if(timeout++ > 500) |
|
- | 705 | { |
|
- | 706 | result = SD_ERROR_TIMEOUT; |
|
- | 707 | goto end; |
|
710 | if(timeout++>500) break; |
708 | } |
711 | }while((rsp & 0x11) != 0x01 ); |
709 | }while((rsp & 0x11) != 0x01 ); |
712 | // analyse data response token |
710 | // analyse data response token |
713 | switch(rsp & DATA_RESPONSE_MASK) |
711 | switch(rsp & DATA_RESPONSE_MASK) |
714 | { |
712 | { |
Line 727... | Line 725... | ||
727 | result = SD_ERROR_UNKNOWN; |
725 | result = SD_ERROR_UNKNOWN; |
728 | goto end; |
726 | goto end; |
729 | break; |
727 | break; |
Line 730... | Line 728... | ||
730 | 728 | ||
731 | } |
729 | } |
732 | // wait until the sdcard is busy. |
730 | // wait 2 seconds until the sdcard is busy. |
733 | rsp = SDC_WaitForBusy(); |
731 | rsp = SDC_WaitForBusy(2000); |
734 | if(rsp != 0xFF) |
732 | if(rsp != 0xFF) |
735 | { |
733 | { |
736 | result = SD_ERROR_TIMEOUT; |
734 | result = SD_ERROR_TIMEOUT; |
737 | goto end; |
735 | goto end; |
- | 736 | } |
|
738 | } |
737 | |
739 | // check card status |
738 | // check card status |
- | 739 | rsp = SDC_SendCMDR1(CMD_SEND_STATUS, 0); |
|
740 | rsp = SDC_SendCMDR1(CMD_SEND_STATUS, 0); |
740 | // first byte of R2 response is like R1 response |
741 | if(rsp != R1_NO_ERR) |
741 | if(rsp != R1_NO_ERR) |
742 | { |
742 | { |
743 | result = SD_ERROR_BAD_RESPONSE; |
743 | result = SD_ERROR_BAD_RESPONSE; |
744 | SSC_GetChar(); |
744 | SSC_GetChar(); // read out 2nd byte |
745 | goto end; |
745 | goto end; |
746 | } |
746 | } |
747 | // 2nd byte of r2 response |
747 | // 2nd byte of r2 response |
748 | rsp = SSC_GetChar(); |
748 | rsp = SSC_GetChar(); |
Line 751... | Line 751... | ||
751 | result = SD_ERROR_WRITE_DATA; |
751 | result = SD_ERROR_WRITE_DATA; |
752 | SSC_GetChar(); |
752 | SSC_GetChar(); |
753 | goto end; |
753 | goto end; |
754 | } |
754 | } |
755 | end: |
755 | end: |
756 | //SSC_Disable(); // disable sdcard. |
- | |
757 | if(result != SD_SUCCESS) |
756 | if(result != SD_SUCCESS) |
758 | { |
757 | { |
759 | sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
758 | sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
760 | SerialPutString(text); |
759 | SerialPutString(text); |
761 | } |
760 | } |
762 | return(result); |
761 | return(result); |
763 | } |
762 | } |
Line 764... | Line 763... | ||
764 | 763 | ||
765 | 764 | ||
766 | //________________________________________________________________________________________________________________________________________ |
765 | //________________________________________________________________________________________________________________________________________ |