Hello,
Could someone please explain what is the proper way to use the Timer2 interrupt?
I found a lot of examples online on the official MICROCHIP website, but every example has an extra line of code.
If there are any design guidelines or documents where this information can be found, apart from the standard PIC32 datasheets?
I am trying to use Timer2 interrupt to enable LED when it is triggered, however, my code does not work for some reason.
My code:
#include<p32xxxx.h>
#include<plib.h>
// timer2 initialization
void timer2_init(void)
{
T2CONbits.TON = 0; /* turn off Timer 2 */
T2CONbits.TCKPS = 7; /* pre-scale = 1:256
PR2 = 11000;
TMR2 = 0;
}
void __ISR(_TIMER_2_VECTOR, ipl7) T2InterruptHandler(void)
{
// toggle RA1 pin
LATAbits.LATA1 ^= 1;
// reset the overflow interrupt flag
IFS0bits.T2IF = 0;
}
main()
{
// init I/Os
DDPCONbits.JTAGEN = 0;
TRISA = 0xff00; // PORTA LSB as outputs which are connected to LEDs
PORTA = 0;
// initialize timer
timer2_init();
IPC2bits.T2IP = 7;
IFS0bits.T2IF = 0;
IEC0bits.T2IE = 1;
T2CONbits.TON = 1;
while(1)
{
// just wait here
}
}// main
I would appreciate it if someone could help me with that.
Thank you.