// common interrupt handler
STATIC void EXTI_Handler(uint port) {
uint32_t bits = MAP_GPIOIntStatus(port, true);
MAP_GPIOIntClear(port, bits);
// might be that we have more than one Pin interrupt pending
// therefore we must loop through all of the 8 possible bits
for (int i = 0; i < 8; i++) {
uint32_t bit = (1 << i);
if (bit & bits) {
pin_obj_t *self = (pin_obj_t *)pin_find_pin_by_port_bit(&pin_cpu_pins_locals_dict, port, bit);
mp_obj_t _callback = mpcallback_find(self);
mpcallback_handler(_callback);
}
}
}
// common interrupt handler
STATIC void EXTI_Handler(uint port) {
uint32_t bits = MAP_GPIOIntStatus(port, true);
MAP_GPIOIntClear(port, bits);
// might be that we have more than one pin interrupt pending
// therefore we must loop through all of the 8 possible bits
for (int i = 0; i < 8; i++) {
uint32_t bit = (1 << i);
if (bit & bits) {
pin_obj_t *self = (pin_obj_t *)pin_find_pin_by_port_bit(&pin_board_pins_locals_dict, port, bit);
if (self->irq_trigger == (PYB_PIN_FALLING_EDGE | PYB_PIN_RISING_EDGE)) {
// read the pin value (hoping that the pin level has remained stable)
self->irq_flags = MAP_GPIOPinRead(self->port, self->bit) ? PYB_PIN_RISING_EDGE : PYB_PIN_FALLING_EDGE;
} else {
// same as the triggers
self->irq_flags = self->irq_trigger;
}
mp_irq_handler(mp_irq_find(self));
// always clear the flags after leaving the user handler
self->irq_flags = 0;
}
}
}
//*****************************************************************************
//
// Called by the NVIC as a result of GPIO port S interrupt event. For this
// application GPIO port S pin 2 is the interrupt line for the MPU9150
//
//*****************************************************************************
void
GPIOSIntHandler(void)
{
uint32_t ui32Status;
ui32Status = MAP_GPIOIntStatus(GPIO_PORTS_BASE, true);
//
// Clear all the pin interrupts that are set
//
MAP_GPIOIntClear(GPIO_PORTS_BASE, ui32Status);
//
// Check which GPIO caused the interrupt event.
//
if(ui32Status & GPIO_PIN_2) {
//
// The MPU9150 data ready pin was asserted so start an I2C transfer
// to go get the latest data from the device.
//
MPU9150DataRead(&g_sMPU9150Inst, MotionCallback, &g_sMPU9150Inst);
}
}
