Gernot Mörtl / Mbed OS 3CHEL_Interrupts

IRQ Demo

main.cpp@0:96fb278b654f, 2019-05-23 (annotated)

Committer:
gmoertl
Date:
Thu May 23 06:25:18 2019 +0000
Revision:
0:96fb278b654f
IRQ Demo

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gmoertl 0:96fb278b654f 1 #include "mbed.h"
gmoertl 0:96fb278b654f 2
gmoertl 0:96fb278b654f 3 InterruptIn fireIrq(p14);
gmoertl 0:96fb278b654f 4 Timeout timeoutIrq;
gmoertl 0:96fb278b654f 5
gmoertl 0:96fb278b654f 6 DigitalOut led1(LED1);
gmoertl 0:96fb278b654f 7 DigitalOut led2(LED2);
gmoertl 0:96fb278b654f 8
gmoertl 0:96fb278b654f 9 Serial pc(USBTX, USBRX);
gmoertl 0:96fb278b654f 10
gmoertl 0:96fb278b654f 11
gmoertl 0:96fb278b654f 12 // funktion runs in interrupt-context
gmoertl 0:96fb278b654f 13 void fireIrqHandler( void )
gmoertl 0:96fb278b654f 14 {
gmoertl 0:96fb278b654f 15 led1 = !led1;
gmoertl 0:96fb278b654f 16 pc.printf("Starting up...\n\r");
gmoertl 0:96fb278b654f 17 }
gmoertl 0:96fb278b654f 18
gmoertl 0:96fb278b654f 19 // runs in irq-context
gmoertl 0:96fb278b654f 20 void timeoutIrqHandler( void )
gmoertl 0:96fb278b654f 21 {
gmoertl 0:96fb278b654f 22 led2 = 0;
gmoertl 0:96fb278b654f 23 }
gmoertl 0:96fb278b654f 24
gmoertl 0:96fb278b654f 25 int main()
gmoertl 0:96fb278b654f 26 {
gmoertl 0:96fb278b654f 27 pc.printf("Starting up...\n\r");
gmoertl 0:96fb278b654f 28
gmoertl 0:96fb278b654f 29 fireIrq.fall( &fireIrqHandler );
gmoertl 0:96fb278b654f 30 fireIrq.rise( &fireIrqHandler );
gmoertl 0:96fb278b654f 31
gmoertl 0:96fb278b654f 32 led2 = 1;
gmoertl 0:96fb278b654f 33 timeoutIrq.attach( &timeoutIrqHandler, 3 );
gmoertl 0:96fb278b654f 34
gmoertl 0:96fb278b654f 35 while(1) {
gmoertl 0:96fb278b654f 36 wait(5);
gmoertl 0:96fb278b654f 37 }
gmoertl 0:96fb278b654f 38 }