C5515 EzDSP Micro SD

Hi,

You can refer CSL code CSLv2.5\c55xx_csl\ccs_v4.0_examples\mmc_sd\CSL_MMCSD_SdCardFSExtExample from http://processors.wiki.ti.com/index.php/C5000_Chip_Support_Library

Regards,

Hyun

Hi!

@ Hyum: That really helped me get started with it.

Hi!

Working on the suggestion given above, I tried running the example code given here

CSL code CSLv2.5\c55xx_csl\ccs_v4.0_examples\mmc_sd\CSL_MMCSD_SdCardFSExtExample 

First, I made the requisite changes to make it work for C5515 EZDSP i.e.

//#ifdef C5515_EZDSP
    mmcsdHandle = MMC_open(&pMmcsdContObj, CSL_MMCSD1_INST, opMode, &status);
//#else
//    mmcsdHandle = MMC_open(&pMmcsdContObj, CSL_MMCSD0_INST, opMode, &status);
//#endif

But, now my program is giving these outputs only

MMCSD-ATAFS TESTS!

MMCSD-ATAFS POLL MODE TEST!

SD Card detected
SD card is Standard Capacity Card
Memory Access will use Byte Addressing
SD card initialization Successful

Though, ideally it should also give output about the ATA-FS file system functions, and i think the program is hanging once it enters

AtaError mmcConfigFs(char    *fileName)

I have formatted the Micro-SD card using Card reader on a windows 7 PC with simple FAT filesystem (default)

Please let me know if I am missing something??

Thanks and regards

Hi

I have tried running the same thing, with similar configuration. But still getting the same problem where the code is only giving these outputs.

MMCSD-ATAFS TESTS!

MMCSD-ATAFS POLL MODE TEST!

SD Card detected
SD card is Standard Capacity Card
Memory Access will use Byte Addressing
SD card initialization Successful

I think there might be something missing, so here I am stating all the environment variables that i think might affect the result.

Operating System: Windows 7 64 bit.

CCS Version: 4

C55x low power Chip support library v2.50

I have defined these variables in the csl_general.h

#define CHIP_C5505_C5515
#define CHIP_5515

#if (!(defined(C5515_EVM)))
#define C5515_EZDSP
#endif

If anybody things that there is something wrong, please let me know. The example code is able to detect SD card, but the file system (ATAFS) specific calls are not getting executed. As an information, i have formatted sdcard using FAT32 which is default. 

As an extra test, I again run the basic CSL_MMCSD_SDCardExample_out where no File system is involved.

I now realize that this code also hangs at one point. I am getting only the output

CSL MMCSD - SD CARD POLL MODE TEST!

API: MMC_open Successful
SD card Detected!
SD card is Standard Capacity Card
Memory Access will use Byte Addressing

API: MMC_write Successful

I figured out that the code has stopped execution after during the read stage

mmcStatus = MMC_read(mmcsdHandle, cardAddr, BUFFER_MAX_SIZE, pReadBuff);

and not going further in the execution. I am running the code in debug mode.

So, there is some basic problem.

Regards

I have the same problem w/o commenting out the #define CHIP_5515.  The csl_general.h defines the C5515_EZDSP.

My Code Generation tool is 4.3.9. 

I have the Spectrum Digital C5515 EVM Onboard USB Emulator.

The following is what is logged when running the CSL_MMCSD_SdCardExample_Out:

CSL MMCSD - SD CARD POLL MODE TEST!

API: MMC_open Successful
SD card Detected!
SD card is Standard Capacity Card
Memory Access will use Byte Addressing

API: MMC_write Successful

Then it hangs in the same place you have described in csl_mmcsd.c at:

do
     {
      status = hMmcsd->mmcRegs->MMCST0;
      if((status & CSL_MMCSD_DATA_TOUT_CRC_ERROR) != 0)
      {
       reIssueReadFlag = 1;
       break;
      }

     } while((status & CSL_MMCSD_READ_READY) != CSL_MMCSD_READ_READY);

Regards,

Dozier