error: tDisplay is undefined

Ether your path is incorrect for #include "drivers/formike128x128xx16.h" or you need to rebuild glib. What IDE are you using? Are you using a stellarisware example or creating your own project? Lela

I am coding on Code Composer Studio v4. And I am just replacing the above .c program instead of the uart_echo.c program on the uart_echo example project.. Also, when I just try implementing the uart_echo.c code in the same project, it works(like it is supposed to). Even that program uses the display and that worked, but my program throws this error.

I rearranged the header files in the program and wrote #include "grlib/grlib.h" above #include "drivers/formike128x128x16.h" . I have included #include "utils/ustdlib.h". Now the program is getting built without any error. But the count does not increase if I give a 5V to the GPIO pin. Please help me out in finding out the mistake. My revamped program is as follows:

#include "inc/hw_ints.h"
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "driverlib/debug.h"
#include "driverlib/gpio.h"
#include "driverlib/interrupt.h"
#include "driverlib/rom.h"
#include "driverlib/sysctl.h"

#include "driverlib/uart.h"
#include "grlib/grlib.h"
#include "drivers/formike128x128x16.h"
#include "utils/ustdlib.h"
//tContext g_sContext;


#ifdef DEBUG
void
__error__(char *pcFilename, unsigned long ulLine)
{
}
#endif


int Count;
void
EdgeIntHandler(void)
{
//
// Clear the GPIO interrupt.
//
GPIOPinIntClear(GPIO_PORTE_BASE, GPIO_PIN_0);
//
// Increment the count of edges.
//
Count++;
}
int main(void)
{
     tContext sContext;
    tRectangle sRect;
	char pcBuffer[32];
	SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN | SYSCTL_XTAL_8MHZ);
	  //
    // Initialize the display driver.
    //
    Formike128x128x16Init();

    //
    // Turn on the backlight.
    //
    Formike128x128x16BacklightOn();

    //
    // Initialize the graphics context.
    //
    GrContextInit(&sContext, &g_sFormike128x128x16);
        //


SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
GPIOPinTypeGPIOInput(GPIO_PORTE_BASE,GPIO_PIN_0);
GPIOIntTypeSet(GPIO_PORTE_BASE, GPIO_PIN_0, GPIO_RISING_EDGE);
GPIOPinIntEnable(GPIO_PORTE_BASE, GPIO_PIN_0);

    sRect.sXMin = 0;
    sRect.sYMin = 0;
    sRect.sXMax = GrContextDpyWidthGet(&sContext) - 1;
    sRect.sYMax = 14;
    GrContextForegroundSet(&sContext, ClrDarkBlue);
    GrRectFill(&sContext, &sRect);

 GrContextForegroundSet(&sContext, ClrWhite);
 GrRectDraw(&sContext, &sRect);
 GrContextFontSet(&sContext, &g_sFontFixed6x8);
usprintf(pcBuffer, "%d", Count);
GrStringDraw(&sContext,&pcBuffer,  -1, 12, 24, 0);
while(1)
{
}

}

okay so a few months later, but is your interrupt set up in the startup_css.c file? when you debug are you stuck in the Default ISR?

and it looks like you don't update the screen ever.