java.lang.NullPointerException while running interrupt code on CCS v5 for DM6446

Hi,
What is your CCS version ?
What is your compiler version in CCS ?
Did you refer the following TI wiki page ?
processors.wiki.ti.com/.../Troubleshooting_CCSv5

Hi,

Code Composer Studio Version: 5.5.0.00077
Compiler version TI v5.1.1

I have checked troubleshooting link too, and no such issues found or this problem solved. as I have mentioned earlier I could able to run the other codes or project. issue here is with interrupt code it is as below, is this a code or linker command file issue?


----------------------------------------------------------------------------------------------
#pragma CODE_SECTION (HandleGPIO_INT, ".irqdata");
void HandleGPIO_INT(void * arg)
{
/* Interrupt Generation Indicator Flag = 1 */
IntGenFlag = 1;
}



void main ()
{
CSL_GpioConfig config;
CSL_GpioPinNum pinNum;
CSL_GpioBankData bankData;
CSL_Status status;
CSL_GpioContext pContext;
CSL_GpioObj gpioObj;
CSL_GpioHwSetup hwSetup;

printf("******************* INTC Example ************************\n");

SWI_sysMode();

/* Initialize INTC */
CSL_intcInit ();

/* Initialize INTC Dispatcher */
CSL_intcDispatcherInit ();

/* Enable all interrupts */
CSL_intcGlobalEnable (&eventStat);

/* Open INTC */
gpioIntcHwSetup.priority = CSL_INTC_PRIORITY_2;
gpioIntcHandle = CSL_intcOpen (&gpioIntcObj, CSL_INTC_EVENTID_GPIO0,
CSL_INTC_VECTID_DEFAULT, &gpioIntcHwSetup, &status);

/* HwSetup INTC */
CSL_intcHwSetup (gpioIntcHandle, &gpioIntcHwSetup);

/* Bind ISR HandleGPIO_INT to Interrupt Controller */
isr_gpio.handler = HandleGPIO_INT;
isr_gpio.arg = NULL;
CSL_intcPlugEventHandler (gpioIntcHandle, &isr_gpio);

/* Event Enable */
CSL_intcEventEnable (CSL_INTC_EVENTID_GPIO0, &eventStat);

printf ("\nINTC: Interrupt Controller Setup... Passed.\n");

/* Initialize the GPIO CSL module */
status = CSL_gpioInit(&pContext);
if (status != CSL_SOK) {
printf ("GPIO: Initialization... Failed.\n");
return;
}
else {
printf ("GPIO: Module Initialization... Passed.\n");
}

/* Open the CSL module */
hGpio = CSL_gpioOpen (&gpioObj, CSL_GPIO, NULL, &status);
if ((hGpio == NULL) || (status != CSL_SOK)) {
printf ("GPIO: Module Open... Failed.\n");
return;
}
else {
hGpio->numBanks = CSL_GPIO_NUM_BANKS;
hGpio->numPins = CSL_GPIO_NUM_PINS;
printf ("GPIO: Module open... Passed.\n");
}

/* Setup hardware parameters */
hwSetup.extendSetup = NULL;

/* Setup the General Purpose IO */
status = CSL_gpioHwSetup(hGpio, &hwSetup);

printf ("GPIO: Module Setup... Passed.\n");

/* Interrupt Generation indicator flag is reset */
IntGenFlag = 0;

/* Configure pins 0 & 8 to generate an interrupt on Rising Edge, and
* configure it as an output, then set the data High (Low->High).
* Set Trigger
*/
config.pinNum = CSL_GPIO_PIN0;
config.trigger = CSL_GPIO_TRIG_RISING_EDGE;
config.direction = CSL_GPIO_DIR_OUTPUT;
hGpio->regs->BINTEN = 0x1;
status = CSL_gpioHwControl (hGpio, CSL_GPIO_CMD_CONFIG_BIT, &config);
if (status != CSL_SOK) {
printf ("GPIO: Command to GPIO configuration... Failed.\n");
errorExit();
}

config.pinNum = CSL_GPIO_PIN8;
config.trigger = CSL_GPIO_TRIG_RISING_EDGE;
config.direction = CSL_GPIO_DIR_OUTPUT;
status = CSL_gpioHwControl (hGpio, CSL_GPIO_CMD_CONFIG_BIT, &config);
if (status != CSL_SOK) {
printf ("GPIO: Command to GPIO configuration... Failed.\n");
errorExit();
}

/* Set Data High: */
pinNum = CSL_GPIO_PIN0;
status = CSL_gpioHwControl (hGpio, CSL_GPIO_CMD_SET_BIT, &pinNum);
if (status != CSL_SOK) {
printf ("GPIO: Command to set bit... Failed.\n");
errorExit();
}

pinNum = CSL_GPIO_PIN8;
status = CSL_gpioHwControl (hGpio, CSL_GPIO_CMD_SET_BIT, &pinNum);
if (status != CSL_SOK) {
printf ("GPIO: Command to set bit... Failed.\n");
errorExit();
}

printf ("GPIO: Condition for interrupt generation... Done.\n");

/* Wait for interrupt to be generated.
* On receiving the interrupt, the CPU control goes to the ISR
* In the ISR, the variable IntGenFlag becomes 1
*/
while (IntGenFlag == 0);

printf ("\nGPIO: Interrupt Occurred.\n");

/* Check Interrupt Status: */
bankData.data = 0;
bankData.index = 0;
status = CSL_gpioHwControl (hGpio, CSL_GPIO_CMD_GET_INTSTATUS, &bankData);
if (status != CSL_SOK) {
printf ("GPIO: Command to GPIO configuration... Failed.\n");
errorExit();
}

if (bankData.data != 0x00000101){
printf ("\nError in Interrupt Loopback Path\n");
}

/* Close the opened instances of GPIO and INTC */
CSL_gpioClose (hGpio);
CSL_intcClose (gpioIntcHandle);

testEndPrint();
}



------------------------------------------------------------------------

linker command file: lnk32.cmd


-e _reset
-c /* LINK USING C CONVENTIONS */
-stack 0x8000 /* SOFTWARE STACK SIZE */
-heap 0x2000 /* HEAP AREA SIZE */
-l rts32e.lib /* GET RUN-TIME SUPPORT */
-l../../lib/csl_davinciArm9.lib
//-l../../lib/davincievmbsl.lib

/* SPECIFY THE SYSTEM MEMORY MAP */

MEMORY
{
BOOT_MEM : org = 0x00000000 len = 0x00000108 /* map over exception vectors */
IRQ_MEM : org = 0x00008000 len = 0x00001FFF
P_MEM : org = 0x80000400 len = 0x03FFFC00 /* PROGRAM MEMORY */
}

/* SPECIFY THE SECTIONS ALLOCATION INTO MEMORY */

SECTIONS
{
.boot : {} > BOOT_MEM /* Exception VECTORS start at 0x00000000 */
.irqdata : {} > IRQ_MEM /* Should be the first one. */
.bss : {} > P_MEM /* GLOBAL & STATIC VARS */
.sysmem : {} > P_MEM /* DYNAMIC MEMORY ALLOCATION AREA */
.stack : {} > P_MEM /* SOFTWARE SYSTEM STACK */

.text : {} > P_MEM /* CODE */
.cinit : {} > P_MEM /* INITIALIZATION TABLES */
.const : {} > P_MEM /* CONSTANT DATA */
.pinit : {} > P_MEM /* TEMPLATE INSTANTIATION TABLES */
}


Regards,

Hi Venkatraman,

Check out below thread ,
e2e.ti.com/.../275061