ccs-c mmc_spi ve mmcsd fonksiyonları

[KIRIKDR]

Arkadaşlar ccs-c drivers ların içersinde mmc_spi.c ve mmcsd.c adında iki tane hafıza kartlarını programlamak için yazılmış hazır fonksiyon dosyaları var. bu dosyaları inceleyecek olursanız içlerinde mmc kartları okumak yazmak için fonksiyonlar var..bu fonksiyonları kullanarak birkaç gündür mmc kart simülasyonu yapmaya çalışıyorum..
Fakat bir türlü muktedir olmuş değilim winhex programıyla oluşturduğum cardimage dosyasını kullanıyorum simülasyonda ama yazma işlemini yaptıktan sonra cardimage dosyasını tekrar winhexle açtığımda içerisinin boş olduğunu görüyorum....

bu fonksiyonları kullanarak basitçe bir mmc/sd kart okuma yazma işlemi nasıl yapılabilir...yardımcı olursanız sevinirim

[KIRIKDR]

Sanırım kimse denememiş bu fonksiyonları 

[emrez]

Selam, aşağıdaki kodlar tarafımca c18 uyarlanıp test edildi. bir göz at faydalı olacaktır.

unsigned char AtaWriteSector(unsigned long lba, unsigned char *WriteData)
{
   unsigned short upper_lba, lower_lba, lp;   /*Variable 0...65535*/
   unsigned char i;

   lba = lba * 512;                     /*since the MMC and SD cards are byte addressable and the FAT relies on a sector address (where a sector is 512bytes big), we must multiply by 512 in order to get the byte address*/
   upper_lba = (lba/65536);
   lower_lba = (lba%65536);

   Command_R1(CMD24, upper_lba, lower_lba);
   if (response_1 != 0)
   {
      return(FALSE);
   }
   else
   {
      SDCARD_CS=0;         /*SDcard Enabled*/
      SPI(0xFF);
      SPI(0xFF);
      SPI(0xFE);

      for(lp=0; lp < 512; lp++)
         {
            SPI(WriteData[lp]);
         }
      SPI(255);                  // Send 2 Byte's without a meaning... although required by protocol
      SPI(255);

      i = SPI(0xFF);
//      i &=0b.0001.1111;
//      if (i != 0b.0000.0101)
//         printf("Write error\n\r");
//      else
//         printf("Write succeeded?");
      while(SPI(0xFF) !=0xFF);      /*wait until the card has finished writing the data*/
      return(TRUE);
   }
}

cmdler

#define      FALSE      0         /*FALSE*/
#define      TRUE      1         /*TRUE*/
#define      MMCCARD      2
#define      SDCARD      3

/*MMC commandset*/
#define      CMD0      0x40      /*Resets the multimedia card*/
#define      CMD1      0x41      /*Activates the card's initialization process*/
#define      CMD2      0x42      /*--*/
#define      CMD3      0x43      /*--*/
#define      CMD4      0x44      /*--*/
#define      CMD5      0x45      /*reseved*/
#define      CMD6      0x46      /*reserved*/
#define      CMD7      0x47      /*--*/
#define      CMD8      0x48      /*reserved*/
#define      CMD9      0x49      /*CSD : Ask the selected card to send its card specific data*/
#define      CMD10      0x4a      /*CID : Ask the selected card to send its card identification*/
#define      CMD11      0x4b      /*--*/
#define      CMD12      0x4c      /*STOP-command*/
#define      CMD13      0x4d      /*Ask the selected card to send its status register*/
#define      CMD14      0x4e      /*--*/
#define      CMD15      0x4f      /*--*/
#define      CMD16      0x50      /*Select a block length (in bytes) for all following block commands (Read:between 1-512 and Write:only 512)*/
#define      CMD17      0x51      /*Reads a block of the size selected by the SET_BLOCKLEN command, the start address and block length must be set so that the data transferred will not cross a physical block boundry*/
#define      CMD18      0x52      /*--*/
#define      CMD19      0x53      /*reserved*/
#define      CMD20      0x54      /*--*/
#define      CMD21      0x55      /*reserved*/
#define      CMD22      0x56      /*reserved*/
#define      CMD23      0x57      /*reserved*/
#define      CMD24      0x58      /*Writes a block of the size selected by CMD16, the start address must be alligned on a sector boundry, the block length is always 512 bytes*/
#define      CMD25      0x59      /*--*/
#define      CMD26      0x5a      /*--*/
#define      CMD27      0x5b      /*Programming of the programmable bits of the CSD*/
#define      CMD28      0x5c      /*If the card has write protection features, this command sets the write protection bit of the addressed group. The porperties of the write protection are coded in the card specific data (WP_GRP_SIZE)*/
#define      CMD29      0x5d      /*If the card has write protection features, this command clears the write protection bit of the addressed group*/
#define      CMD30      0x5e      /*If the card has write protection features, this command asks the card to send the status of the write protection bits. 32 write protection bits (representing 32 write protect groups starting at the specific address) followed by 16 CRD bits are transferred in a payload format via the data line*/
#define      CMD31      0x5f      /*reserved*/
#define      CMD32      0x60      /*sets the address of the first sector of the erase group*/
#define      CMD33      0x61      /*Sets the address of the last sector in a cont. range within the selected erase group, or the address of a single sector to be selected for erase*/
#define      CMD34      0x62      /*Removes on previously selected sector from the erase selection*/
#define      CMD35      0x63      /*Sets the address of the first erase group within a range to be selected for erase*/
#define      CMD36      0x64      /*Sets the address of the last erase group within a continuos range to be selected for erase*/
#define      CMD37      0x65      /*Removes one previously selected erase group from the erase selection*/
#define      CMD38      0x66      /*Erases all previously selected sectors*/
#define      CMD39      0x67      /*--*/
#define      CMD40      0x68      /*--*/
#define      CMD41      0x69      /*reserved*/
#define      CMD42      0x6a      /*reserved*/
#define      CMD43      0x6b      /*reserved*/
#define      CMD44      0x6c      /*reserved*/
#define      CMD45      0x6d      /*reserved*/
#define      CMD46      0x6e      /*reserved*/
#define      CMD47      0x6f      /*reserved*/
#define      CMD48      0x70      /*reserved*/
#define      CMD49      0x71      /*reserved*/
#define      CMD50      0x72      /*reserved*/
#define      CMD51      0x73      /*reserved*/
#define      CMD52      0x74      /*reserved*/
#define      CMD53      0x75      /*reserved*/
#define      CMD54      0x76      /*reserved*/
#define      CMD55      0x77      /*reserved*/
#define      CMD56      0x78      /*reserved*/
#define      CMD57      0x79      /*reserved*/
#define      CMD58      0x7a      /*reserved*/
#define      CMD59      0x7b      /*Turns the CRC option ON or OFF. A '1' in the CRC option bit will turn the option ON, a '0' will turn it OFF*/
#define      CMD60      0x7c      /*--*/
#define      CMD61      0x7d      /*--*/
#define      CMD62      0x7e      /*--*/
#define      CMD63      0x7f      /*--*/