Multiple Interrupt

Setthasan Sannakit

Hello, I'm using TMS321F2808. Now I have interrupt timer0 1ms and I need interrupt 100us.

I have tried to use interrupt PWM 100us but not work because loop 100us can not occur if loop 1ms is not finish

I need loop100us can occur while if the others are not finish, please advise how to do it.

Thank you

Brett Larimore over 13 years ago

Setthasen,

You have two options:

If possible, make your 1ms interrupt smaller. To do this you would only do the minimum amount of work inside the interrupt. The rest of the work would be done in the time between interrupts (a forever while() loop, etc)
Allow nested interrupts. See the following wiki: http://processors.wiki.ti.com/index.php/Interrupt_Nesting_on_C28x

Thank you,
Brett

C2000 microcontrollers forum