How to attach an ISR to the TIM13 Overflow

Hardware GIGA R1
1

Hi,
I am new to this forum so play nice. :slight_smile:

I am using the new Arduino GIGA R1 Wifi and want to have a timer trigger an interrupt routine every N milliseconds..

I'm trying to attach an ISR to the TIM13 update interrupt and don't seem to be able to find an "attachInterrupt" function that works with timers, the attachInterrupt wants an external pin number.

I am monitoring the TIM13->SR register and I can seen the interrupt flag change to 1 but i can't get the event to run my ISR code.

Can anyone help??