| 368,7 → 368,6 |
|---|
| return SDC_GetData(CMD_SEND_CSD, 0UL, pCSD, 16); |
| } |
| |
| |
| //________________________________________________________________________________________________________________________________________ |
| // Funtion: SDC_Init(void); |
| // |
| 378,21 → 377,24 |
|---|
| // Returnvalue: the function returns 0 if the initialisation was successfull otherwise the function returns an errorcode. |
| //________________________________________________________________________________________________________________________________________ |
| |
| SD_Result_t SDC_Init(void) |
| SD_Result_t SDC_Init(unsigned char print) |
| { |
| u32 timeout = 0; |
| u16 speed; |
| u8 rsp[6]; // SD-SPI response buffer |
| SD_Result_t result = SD_ERROR_UNKNOWN; |
| if(SPI_Speed < 500) SPI_Speed = 500; // nur zur Sicherheit |
| speed = SPI_Speed; // weil das bei SSC_Init() auf 400 gesetzt werden würde |
| |
| //SDCardWriteRetryCounterMax = 0; |
| |
| if(SD_SWITCH) // init only if the SD-Switch is indicating a card in the slot |
| { |
| UART1_PutString("\r\n SSC init..."); |
| if(print) UART1_PutString("\r\n SSC init..."); |
| SSC_Init(); |
| UART1_PutString("ok"); |
| if(print) UART1_PutString("ok"); |
| |
| UART1_PutString("\r\n SDC init..."); |
| if(print) UART1_PutString("\r\n SDC init..."); |
| SDCardInfo.Valid = 0; |
| /* The host shall supply power to the card so that the voltage is reached to Vdd_min within 250ms and |
| start to supply at least 74 SD clocks to the SD card with keeping cmd line to high. In case of SPI |
| 530,7 → 532,9 |
|---|
| SSC_Disable(); // set SD_CS high |
| // here is the right place to inrease the SPI baud rate to maximum |
| |
| SSC_Speed(2000); |
| SSC_Speed(speed); |
| if(print) { sprintf(text,"\r\n Setting SPI speed to %d ", SPI_Speed);UART1_PutString(text); } |
| |
| SSC_Enable(); // set SD_CS high |
| |
| // read CID register |
| 538,10 → 542,11 |
|---|
| if(result != SD_SUCCESS) |
| { |
| |
| UART1_PutString(" Set interface to low speed..."); |
| if(print) UART1_PutString(" failed - Set interface to low speed..."); |
| SSC_Disable(); // set SD_CS high |
| // here is the right place to inrease the SPI baud rate to maximum |
| SSC_Speed(1000); |
| SPI_Speed = 1000; |
| SSC_Speed(SPI_Speed); |
| SSC_Enable(); // set SD_CS high |
| result = SDC_GetCID((u8 *)&SDCardInfo.CID); |
| } |
| 561,7 → 566,7 |
|---|
| goto end; |
| } |
| |
| UART1_PutString("ok\r\n"); |
| if(print) UART1_PutString("ok\r\n"); |
| |
| u8 c_size_mult, read_bl_len; |
| u32 c_size; |
| 608,7 → 613,7 |
|---|
| break; |
| } |
| |
| switch(SDCardInfo.Version) |
| if(print) switch(SDCardInfo.Version) |
| { |
| case VER_1X: |
| UART1_PutString(" SD-CARD V1.x"); |
| 618,11 → 623,14 |
|---|
| default: |
| break; |
| } |
| u16 mb_size = (u16)(SDCardInfo.Capacity/(1024L*1024L)); |
| sprintf(text, "\r\n Capacity = %i MB", mb_size); |
| UART1_PutString(text); |
| if(print) |
| { |
| u16 mb_size = (u16)(SDCardInfo.Capacity/(1024L*1024L)); |
| sprintf(text, "\r\n Capacity = %i MB", mb_size); |
| UART1_PutString(text); |
| } |
| |
| SDC_PrintCID((u8 *)&SDCardInfo.CID); |
| if(print) SDC_PrintCID((u8 *)&SDCardInfo.CID); |
| SDCardInfo.Valid = 1; |
| // jump point for error condition before |
| end: |
| 767,12 → 775,25 |
|---|
| //SSC_Disable(); // disable CS |
| if(result != SD_SUCCESS) |
| { |
| sprintf(text,"Error %02X writing data to sd card (R=%02X).\r\n", result, rsp); |
| |
| sprintf(text,"\r\nError %02X writing data to sd card (R=%02X)", result, rsp); |
| UART1_PutString(text); |
| retryCounter++; |
| } |
| else break; // Success -> end retry loop |
| |
| if(SPI_Speed > 1000) |
| { |
| SPI_Speed -= 200; |
| sprintf(text," new Speed = %d", SPI_Speed); |
| UART1_PutString(text); |
| } |
| SDC_Init(0); |
| } |
| else |
| { |
| if(retryCounter == 1) UART1_PutString(" Problem solved\r\n"); |
| break; // Success -> end retry loop |
| } |
| |
| } |
| if (retryCounter > SDCardWriteRetryCounterMax) |
| { SDCardWriteRetryCounterMax = retryCounter; |