EK-TM4C1294XL: Unresolved symbols error while compiling FATfs

Hello Sumit

You may not have included the Fat File System source files during compilation of the project. Please refer to the existing examples in DK-TM4C129X to see which files need to be included during the compile.

Hello Amit,

I referred to the SDcard.c example in DK-TM4C129X and i check my below project settings. Iam posting screen shots for your reference

Also , I'am confused about the SPI Pin settings. Suppose i want to use SSI3 to interface with sd card module, Do I have to do SPI Pins configuration in my main() function? I'am asking this because in mmc-dk-tm4c129x.c file the SPI pins are already defined.

The CS pin is mentioned as PH4 where as PH4 Pin is not available on EK-TM4C1294xl launchpad!!

/************ test code for SD CARD************/

#include <stdint.h>
#include <stdbool.h>

#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "inc/hw_udma.h"
#include "inc/hw_adc.h"
#include "driverlib/sysctl.h"
#include "driverlib/gpio.h"
#include "driverlib/pin_map.h"
#include "driverlib/uart.h"
#include "inc/hw_ints.h"
#include "driverlib/interrupt.h"
#include "driverlib/debug.h"
#include "driverlib/adc.h"
#include "driverlib/timer.h"
#include "arm_math.h"
#include <math.h>
#include "driverlib/fpu.h"
#include "driverlib/udma.h"
#include "driverlib/ssi.h"
//#include "math_helper.h"

#include "fatfs/src/ff.h"
#include "fatfs/src/diskio.h"

 static FATFS g_sFatFs; // The following are data structures used by FatFs.
static FIL fil;

int
main(void)
{
    int nStatus;
    FRESULT iFResult;

ui32SysClkFreq= SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ | SYSCTL_OSC_MAIN | SYSCTL_USE_PLL | SYSCTL_CFG_VCO_480), 120000000);

SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOQ);
		while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOQ)));
		    SysCtlPeripheralEnable(SYSCTL_PERIPH_SSI3); //for sd card
		    GPIOPinConfigure(GPIO_PQ0_SSI3CLK);
		    GPIOPinConfigure(GPIO_PQ1_SSI3FSS);
		    GPIOPinConfigure(GPIO_PQ2_SSI3XDAT0);
		    GPIOPinConfigure(GPIO_PQ3_SSI3XDAT1);

		    GPIOPinTypeSSI(GPIO_PORTQ_BASE, GPIO_PIN_3 | GPIO_PIN_2 | GPIO_PIN_1 |
		                       GPIO_PIN_0);


		    SSIConfigSetExpClk(SSI3_BASE, ui32SysClkFreq, SSI_FRF_MOTO_MODE_0,
		                         SSI_MODE_MASTER, 400000, 8);

		    SSIEnable(SSI3_BASE);


iFResult = f_mount(0, &g_sFatFs);
    

    power_on();
    BOOL a = wait_ready();
    DSTATUS errd;
    if(a) {
        send_initial_clock_train();
        errd = disk_initialize(0);
       
    uint32_t count = 8*512;
    iFResult = f_open(&fil, "testfile.txt", FA_CREATE_NEW|FA_WRITE);
   

    iFResult = f_write(&fil, "Hello world", 11, &count);
    
    iFResult = f_close(&fil);
    f_mount(0, NULL);

}

I'am still getting error as mentioned below

undefined                  first referenced     
  symbol                        in file          
 ---------                  ----------------     
 ROM_GPIOPinTypeGPIOOutput  ./mmc-dk-tm4c129x.obj
 ROM_GPIOPinTypeSSI         ./mmc-dk-tm4c129x.obj
 ROM_GPIOPinWrite           ./mmc-dk-tm4c129x.obj
 ROM_SSIConfigSetExpClk     ./mmc-dk-tm4c129x.obj
 ROM_SSIDataGet             ./mmc-dk-tm4c129x.obj
 ROM_SSIDataPut             ./mmc-dk-tm4c129x.obj
 ROM_SSIDisable             ./mmc-dk-tm4c129x.obj
 ROM_SSIEnable              ./mmc-dk-tm4c129x.obj
 ROM_SysCtlPeripheralEnable ./mmc-dk-tm4c129x.obj
 g_ui32SysClock             ./mmc-dk-tm4c129x.obj

 power_on                   ./main.obj           
>> Compilation failure
 send_initial_clock_train   ./main.obj           
 wait_ready                 ./main.obj           

Hello Sumit

You have not included the rom.h and rom_map.h file which is required for the ROM_XXX error message

The others are because of the missing compilation of the files in the Fat File System. The approach of having the function being called in the main.c is not the correct approach and is not there in the sd card example.

Hello Amit,

I've included  the rom.h and rom_map.h file but still i'am getting the same error.

since i'am using SSI3 and the EK-TM4C1294XL launchpad pinout diagram shows that PORT Q is used for SSI3

I've changed the SSI pins configuration  in mmc-ek-tm4c1294xl.c file as shown below

/* Peripheral definitions for EK-TM4C129EXL board */
/* SSI port */
#define SDC_SSI_BASE            SSI3_BASE
#define SDC_SSI_SYSCTL_PERIPH   SYSCTL_PERIPH_SSI3

/* GPIO for SSI pins */
/* CLK pin */
#define SDC_SSI_CLK_GPIO_PORT_BASE   GPIO_PORTQ_BASE
#define SDC_SSI_CLK             GPIO_PIN_0
/* TX pin */
#define SDC_SSI_TX_GPIO_PORT_BASE   GPIO_PORTQ_BASE //  GPIO_PORTF_BASE
#define SDC_SSI_TX              GPIO_PIN_2			 //		 GPIO_PIN_0
/* RX pin */
#define SDC_SSI_RX_GPIO_PORT_BASE   GPIO_PORTQ_BASE
#define SDC_SSI_RX              GPIO_PIN_3				 //GPIO_PIN_2
/* CS pin */
#define SDC_SSI_FSS_GPIO_PORT_BASE   GPIO_PORTQ_BASE	  //	  GPIO_PORTH_BASE
#define SDC_SSI_FSS             GPIO_PIN_1					//	   GPIO_PIN_4

/* must be supplied by the application */
extern uint32_t ui32SysClkFreq;			  //	  g_ui32SysClock

Also, I've changed the power_on() function as shown below.

static
void power_on (void)
{
    /*
     * This doesn't really turn the power on, but initializes the
     * SSI port and pins needed to talk to the card.
     */

    /* Enable the peripherals used to drive the SDC on SSI */

    ROM_SysCtlPeripheralEnable(SDC_SSI_SYSCTL_PERIPH);
    ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOQ);
 

    
     /*
     * CUSTOM ADDITON
     
     */
    ROM_GPIOPinConfigure(GPIO_PQ3_SSI3XDAT1);
    ROM_GPIOPinConfigure(GPIO_PQ2_SSI3XDAT0);
 
    ROM_GPIOPinConfigure(GPIO_PQ0_SSI3CLK);
    /*
     * Configure the appropriate pins to be SSI instead of GPIO. The FSS (CS)
     * signal is directly driven to ensure that we can hold it low through a
     * complete transaction with the SD card.
     */
    ROM_GPIOPinTypeSSI(SDC_SSI_TX_GPIO_PORT_BASE, SDC_SSI_TX);
    ROM_GPIOPinTypeSSI(SDC_SSI_RX_GPIO_PORT_BASE, SDC_SSI_RX);
    ROM_GPIOPinTypeSSI(SDC_SSI_CLK_GPIO_PORT_BASE, SDC_SSI_CLK);
    ROM_GPIOPinTypeGPIOOutput(SDC_SSI_FSS_GPIO_PORT_BASE, SDC_SSI_FSS);
    
 

    /*
     * Set the SSI output pins to 4MA drive strength and engage the
     * pull-up on the receive line.
     */
    MAP_GPIOPadConfigSet(SDC_SSI_RX_GPIO_PORT_BASE, SDC_SSI_RX,
                         GPIO_STRENGTH_4MA, GPIO_PIN_TYPE_STD_WPU);
    MAP_GPIOPadConfigSet(SDC_SSI_CLK_GPIO_PORT_BASE, SDC_SSI_CLK,
                         GPIO_STRENGTH_4MA, GPIO_PIN_TYPE_STD);
    MAP_GPIOPadConfigSet(SDC_SSI_TX_GPIO_PORT_BASE, SDC_SSI_TX,
                         GPIO_STRENGTH_4MA, GPIO_PIN_TYPE_STD);
    MAP_GPIOPadConfigSet(SDC_SSI_FSS_GPIO_PORT_BASE, SDC_SSI_FSS,
                         GPIO_STRENGTH_4MA, GPIO_PIN_TYPE_STD);

    /* Configure the SSI3 port */
    ROM_SSIConfigSetExpClk(SDC_SSI_BASE, ui32SysClkFreq,
                           SSI_FRF_MOTO_MODE_0, SSI_MODE_MASTER, 400000, 8);
    ROM_SSIEnable(SDC_SSI_BASE);

    /* Set DI and CS high and apply more than 74 pulses to SCLK for the card */
    /* to be able to accept a native command. */
    send_initial_clock_train();

    PowerFlag = 1;
}

However, when i add the below lines in power_on() function

    ROM_GPIOPinConfigure(GPIO_PQ3_SSI3XDAT1);
    ROM_GPIOPinConfigure(GPIO_PQ2_SSI3XDAT0);
  
    ROM_GPIOPinConfigure(GPIO_PQ0_SSI3CLK);

It gives me error as shown below

"C:/ti/TivaWare_C_Series-2.1.0.12573/third_party/fatfs/port/mmc-ek-tm4c1294xl.c", line 211: error: identifier "GPIO_PQ3_SSI3XDAT1" is undefined
"C:/ti/TivaWare_C_Series-2.1.0.12573/third_party/fatfs/port/mmc-ek-tm4c1294xl.c", line 212: error: identifier "GPIO_PQ2_SSI3XDAT0" is undefined
"C:/ti/TivaWare_C_Series-2.1.0.12573/third_party/fatfs/port/mmc-ek-tm4c1294xl.c", line 214: error: identifier "GPIO_PQ0_SSI3CLK" is undefined

The way Iam adding files to the project is

Right Click on project name-> select "Add Files" -> browse to mmc-dk-tm4c1294xl.c file in Tivaware folder-> Click on "Link to files"

Right Click on project name-> select "Add Files" -> browse to ff.c file in Tivaware folder-> Click on "Link to files"

Below is my simple code

#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "inc/hw_udma.h"
#include "inc/hw_adc.h"


#include "driverlib/systick.h"
#include "driverlib/sysctl.h"
#include "driverlib/gpio.h"


#include "driverlib/pin_map.h"

#include "driverlib/rom.h"
#include "driverlib/rom_map.h"
#include "driverlib/uart.h"
#include "inc/hw_ints.h"
#include "driverlib/interrupt.h"
#include "driverlib/debug.h"
#include "driverlib/adc.h"
#include "driverlib/timer.h"
#include "arm_math.h"
#include <math.h>
#include "driverlib/fpu.h"
#include "driverlib/udma.h"
#include "driverlib/ssi.h"
//#include "math_helper.h"
#include "utils/ustdlib.h"
#include "utils/cmdline.h"


#include "fatfs/src/ff.h"
#include "fatfs/src/diskio.h"

uint32_t ui32SysClkFreq;


 static FATFS g_sFatFs; // The following are data structures used by FatFs.
 static FIL fil;

int main(void)
{

	    	
	    	FRESULT iFResult;

	FPULazyStackingEnable();

	FPUEnable();

ui32SysClkFreq= SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ | SYSCTL_OSC_MAIN | SYSCTL_USE_PLL | SYSCTL_CFG_VCO_480), 120000000);

	

	  SysTickPeriodSet(ui32SysClkFreq / 100);
	  SysTickEnable();
	   SysTickIntEnable();

iFResult = f_mount(0, &g_sFatFs);

		

		uint32_t count = 8*512;
			iFResult = f_open(&fil, "testfile.txt", FA_CREATE_NEW|FA_WRITE);

			iFResult = f_write(&fil, "Hello world", 11, &count);

			iFResult = f_close(&fil);

			f_mount(0, NULL);
}

Hello Sumit,

Can you zip your project and send it across? We are not going to get anyplace constructive with the sketchy information being provided....

sd card test.rarHello Amit,

I've attached the zipped project. I'am using CCSv6 & TIVAWARE VERSION 2.1.0.12573

I've included the mmc-ek-tm4c1294xl.c & ff.c file in the project as well.

Hello Sumit

I see 3 issues with the code you have

1. The define TARGET_IS_TM4C129_RA1 is missing in the Build Options.
2. The variable SW_ROOT is not defined in the Build Settings for the project.
3. uint32_t ui32SysClkFreq must be declared as volatile uint32_t g_ui32SysClock and all ui32SysClkFreq must be replaced by g_ui32SysClock in the main.c

After correcting the same, the project is compiling. I however cannot guarantee that it will work....

Hello Amit,

Many Thanks for your help!! The project is up & running. The code is also working.

Now, I 'am working on how to write the ADC data values into the SD card continuously ( say about 1000 data values).

Will get back if face any issues!

Thanks a lot again!

Hello Sumit,

Glad to hear it is working for you. Please open a new post rather than extending the current post.