hey everyone,
i hope i post in the right place but if not, please inform me to post it in
a more suitable place...
Let me describe my problem..
For my project, i use starterware (version 2.00.01.01) and build my files
via code composer studio (version 6.1.0.00104) with compiler version:GNU
v4.8.4 (Linaro).
My goal is to learn using interrupts. Thus i started with a simple project
in mind: by pressing a switch i expect to create an interrupt in an input
pin of my beaglebone and via the isr i created, i want to turn off a led
that was already on and turn on an other, previously off, led.
The problem seems to be that i can not get an interrupt...
I give you the piece of code responsible for achieving my goal:
IntMasterIRQEnable();
IntAINTCInit();
GPIO1ModuleClkConfig();
GpioModuleEnable(SOC_GPIO_1_REGS);
GPIODirModeSet(SOC_GPIO_1_REGS, GPIO_INTER_INP, GPIO_DIR_INPUT);
IntRegister(SYS_INT_GPIOINT1A, isr_buttonLed);
IntPrioritySet(SYS_INT_GPIOINT1A, 0, AINTC_HOSTINT_ROUTE_IRQ);
IntSystemEnable(SYS_INT_GPIOINT1A);
GPIOIntTypeSet(SOC_GPIO_1_REGS,GPIO_INTER_INP,GPIO_INT_TYPE_LEVEL_HIGH);
HWREG(SOC_GPIO_1_REGS + 0x34) = 0x10;
HWREG(SOC_GPIO_1_REGS + 0x38) = 0x10;
HWREG(SOC_GPIO_1_REGS + 0x44) = 0x10;
//
//------isr function
//
static void isr_buttonLed(void)
{
/* Clear interrupt */
HWREG(SOC_GPIO_1_REGS + 0x2C) = 0x10;
HWREG(SOC_GPIO_1_REGS + 0x30) = 0x10;
//turn off led that is already on
GPIOPinWrite(SOC_GPIO_1_REGS, GPIO_LED_ON, GPIO_PIN_LOW);
//turn on an other led
GPIOPinWrite(SOC_GPIO_1_REGS, GPIO_LED_2, GPIO_PIN_HIGH);
//again enable IRQ
HWREG(SOC_GPIO_1_REGS + 0x34) = 0x10;//GPIO_IRQSTATUS_SET_0
HWREG(SOC_GPIO_1_REGS + 0x38) = 0x10;//GPIO_IRQSTATUS_SET_1
HWREG(SOC_GPIO_1_REGS + 0x44) = 0x10;//GPIO_IRQWAKEN_0
}
Unfortunately, nothing happens when i push the switch..can somebody point
out to me a possible solution or what is wrong with the above?
Moreover, how can i test if an interrupt is actually triggered or not when
i push the switch?
Thanks in advance for any help
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