EdgeTriggered

Edge triggered interrupts. More...

Files
file	EdgeTriggered.h
	Edge triggered interrupts.

Functions
void	EdgeTriggered_Init (void)
	Initialize edge-triggered interrupt. More...

Detailed Description

Edge triggered interrupts.

Edge triggered pin

Pin	Description
PB21	S3 negative logic switch

Function Documentation

EdgeTriggered_Init()

void EdgeTriggered_Init

(

void

)

Initialize edge-triggered interrupt.

Arm interrupts on rise and fall of PB21

Parameters

none

Returns

none

See also

LaunchPad_Init()

Note

interrupts will be enabled in main after all initialization User defines their own ISR like the following

uint32_t Count;
void GROUP1_IRQHandler(void){
  Count++; // number of touches
  GPIOB->DOUTTGL31_0 = RED; // toggle PB26
  GPIOB->CPU_INT.ICLR = 0x00200000;   // clear bit 21
}