DK-TM4C123G code on a TM4C123G

Hi James,

     So, you are importing the SD card example program for DK-TM4C123G to Tiva Launchpad? Am I correct?

James Randjelovic said:

symbol g_pfnVectors redefined: first defined in "./tm4c123gh6pge_startup_css.obj"; refined in "./startup_css.obj"

      This means you have two startup files at your project. Check this.      

-kel

Markel Robregado said:

So, you are importing the SD card example program for DK-TM4C123G to Tiva Launchpad? Am I correct?

Hi Kel, yes that's correct. Removing the tm4c123 file solved that problem, thanks. I do have another problem however. I believe I've ported everything correctly, but am getting the following errors on the terminal;

"Initialising disk 0. Status = 1"

"fresult: FR_NOT_READY"

It seems like the disk is not initializing properly. At this stage I'm just trying to create a new file on the card and write a sentence to it. The relevant code is below,

    UARTprintf("\n\nSD Card Example Program\n");
    UARTprintf("Type \'help\' for help.\n");

    //
    // Mount the file system, using logical disk 0.
    //
    iFResult = f_mount(0, &g_sFatFs);
    if(iFResult != FR_OK)
    {
        UARTprintf("f_mount error: %s\n", StringFromFResult(iFResult));
        return(1);
    }

    power_on();
    BOOL a = wait_ready();
    DSTATUS errd;
    if(a) {
        send_initial_clock_train();
        errd = disk_initialize(0);
        UARTprintf("\nInitialising disk 0. Status = %i\n", errd);
    }

    FIL fil;
    uint32_t count = 8*512;
    iFResult = f_open(&fil, "testfile.txt", FA_CREATE_NEW|FA_WRITE);
    SysCtlDelay(SysCtlClockGet()/3);
    if(iFResult != FR_OK) {UARTprintf("fresult: %s\n", StringFromFResult(iFResult)); }
    else{UARTprintf("\n Opened SD card\n");}

    iFResult = f_write(&fil, "Hello world", 11, &count);
    if(iFResult != FR_OK) {UARTprintf("Error writing to file: %s\n", StringFromFResult(iFResult));}
    iFResult = f_close(&fil);
    f_mount(0, NULL);

Am I missing some step in initializing the SD card? Any help appreciated.

Hi James,

Do click "Verify Answer" to any replies in this post that helps solve your problem. This will mark this post as "Answered".

Regarding your SD card FR_NOT_READY problem, this example program work for DK-TM4C123G. Any error with this example program, most likely at fault is the SD Card. Basic troubleshooting like formatting the SD Card might help solve the problem. But, that is for DK-TM4C123G.

Since you are porting this for Tiva Launchpad, other factors may contribute that is causing this problem, such as circuitry for SD card.  

For the orderliness of the forum, it would be great to just create a new post if you have further questions not related to your initial post.

-kel

No worries, will move it to a separate question.