How to Implement Timer ISR using Callback

Maisie Fernandes

Intellectual 380 points

Other Parts Discussed in Thread: MSP430F5529

Hello ,

Well I having been trying to learn about callback functions. But haven't understood much about it.

I am working with MSP430F5529 launchpad.

I would like to know on how to Implement Timer ISR using Callback.

(This would further help me understand how callbacks are used in firmware development.)

Regards,

Maisie

over 9 years ago

0 Clemens Ladisch over 9 years ago

Guru 318760 points

Normal interrupt handler:

__attribute__((__interrupt__(TIMER0_A0_VECTOR)))
static void my_little_handler(void)
{
    // do something ...
}

Interrupt handler with callback:

void (*callback)(void);

__attribute__((__interrupt__(TIMER0_A0_VECTOR)))
static void my_little_handler(void)
{
    callback();
}

void some_callback_function(void)
{
    // do something ...
}

// initialization:
callback = &some_callback_function;

0 Maisie Fernandes over 9 years ago in reply to Clemens Ladisch

Intellectual 380 points

Hii,

Thank you so much... :)

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How to Implement Timer ISR using Callback