//****************************************************************************
//
//! Main function
//!
//! \param none
//!
//! This function
//! 1. Configures the GPIOA1 and A2 interrupt.
//!
//! \return None.
//
//****************************************************************************
int main() {
//
// Initialize Board configurations
//
BoardInit();
//
// Power on the corresponding GPIO port B for 9,10,11.
// Set up the GPIO lines to mode 0 (GPIO)
//
PinMuxConfig();
//
// Configure the GPIO13 - SW2 interrupt
//
MAP_GPIOIntRegister(GPIOA1_BASE, GPIOA1IntHandler);
MAP_GPIOIntTypeSet(GPIOA1_BASE, GPIO_PIN_5, GPIO_RISING_EDGE);
//
// Configure the GPIO22 interrupt
//
MAP_GPIOIntRegister(GPIOA2_BASE, GPIOA2IntHandler);
MAP_GPIOIntTypeSet(GPIOA2_BASE, GPIO_PIN_6, GPIO_RISING_EDGE);
//
// Enable GPIO13 Interrupt
//
MAP_GPIOIntClear(GPIOA1_BASE, GPIO_PIN_5);
MAP_IntPendClear(INT_GPIOA1);
MAP_IntEnable(INT_GPIOA1);
MAP_GPIOIntEnable(GPIOA1_BASE, GPIO_PIN_5);
//
// Enable GPIO22 Interrupt
//
MAP_GPIOIntClear(GPIOA2_BASE, GPIO_PIN_6);
MAP_IntPendClear(INT_GPIOA2);
MAP_IntEnable(INT_GPIOA2);
MAP_GPIOIntEnable(GPIOA2_BASE, GPIO_PIN_6);
//
// Infinite loop. All processing happens now in the interrupt handler.
while (1) {
}
return 0;
}
//****************************************************************************
//
//! Configures the GPIO selected as input to generate interrupt on activity
//!
//! \param uiGPIOPort is the GPIO port address
//! \param ucGPIOPin is the GPIO pin of the specified port
//! \param uiIntType is the type of the interrupt (refer gpio.h)
//! \param pfnIntHandler is the interrupt handler to register
//!
//! This function
//! 1. Sets GPIO interrupt type
//! 2. Registers Interrupt handler
//! 3. Enables Interrupt
//!
//! \return None
//
//****************************************************************************
void
GPIO_IF_ConfigureNIntEnable(unsigned int uiGPIOPort,
unsigned char ucGPIOPin,
unsigned int uiIntType,
void (*pfnIntHandler)(void))
{
//
// Set GPIO interrupt type
//
MAP_GPIOIntTypeSet(uiGPIOPort,ucGPIOPin,uiIntType);
//
// Register Interrupt handler
//
#ifdef USE_TIRTOS
osi_InterruptRegister(GetPeripheralIntNum(uiGPIOPort),
pfnIntHandler, INT_PRIORITY_LVL_1);
#else
MAP_GPIOIntRegister(uiGPIOPort,pfnIntHandler);
#endif
//
// Enable Interrupt
//
MAP_GPIOIntClear(uiGPIOPort,ucGPIOPin);
MAP_GPIOIntEnable(uiGPIOPort,ucGPIOPin);
}
//****************************************************************************
//
//! Configures the GPIO selected as input to generate interrupt on activity
//!
//! \param uiGPIOPort is the GPIO port address
//! \param ucGPIOPin is the GPIO pin of the specified port
//! \param uiIntType is the type of the interrupt (refer gpio.h)
//! \param pfnIntHandler is the interrupt handler to register
//!
//! This function
//! 1. Sets GPIO interrupt type
//! 2. Registers Interrupt handler
//! 3. Enables Interrupt
//!
//! \return None
//
//****************************************************************************
void
GPIO_IF_ConfigureNIntEnable(unsigned int uiGPIOPort,
unsigned char ucGPIOPin,
unsigned int uiIntType,
void (*pfnIntHandler)(void))
{
//
// Set GPIO interrupt type
//
MAP_GPIOIntTypeSet(uiGPIOPort,ucGPIOPin,uiIntType);
//
// Register Interrupt handler
//
#if defined(USE_TIRTOS) || defined(USE_FREERTOS) || defined(SL_PLATFORM_MULTI_THREADED)
// USE_TIRTOS: if app uses TI-RTOS (either networking/non-networking)
// USE_FREERTOS: if app uses Free-RTOS (either networking/non-networking)
// SL_PLATFORM_MULTI_THREADED: if app uses any OS + networking(simplelink)
osi_InterruptRegister(GetPeripheralIntNum(uiGPIOPort),
pfnIntHandler, INT_PRIORITY_LVL_1);
#else
MAP_IntPrioritySet(GetPeripheralIntNum(uiGPIOPort), INT_PRIORITY_LVL_1);
MAP_GPIOIntRegister(uiGPIOPort,pfnIntHandler);
#endif
//
// Enable Interrupt
//
MAP_GPIOIntClear(uiGPIOPort,ucGPIOPin);
MAP_GPIOIntEnable(uiGPIOPort,ucGPIOPin);
}
STATIC void pin_extint_register(pin_obj_t *self, uint32_t intmode, uint32_t priority) {
void *handler;
uint32_t intnum;
// configure the interrupt type
MAP_GPIOIntTypeSet(self->port, self->bit, intmode);
switch (self->port) {
case GPIOA0_BASE:
handler = GPIOA0IntHandler;
intnum = INT_GPIOA0;
break;
case GPIOA1_BASE:
handler = GPIOA1IntHandler;
intnum = INT_GPIOA1;
break;
case GPIOA2_BASE:
handler = GPIOA2IntHandler;
intnum = INT_GPIOA2;
break;
case GPIOA3_BASE:
default:
handler = GPIOA3IntHandler;
intnum = INT_GPIOA3;
break;
}
MAP_GPIOIntRegister(self->port, handler);
// set the interrupt to the lowest priority, to make sure that
// no other ISRs will be preemted by this one
MAP_IntPrioritySet(intnum, priority);
}