C2000™︎ microcontrollers

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Configure two sources for a single XINTn interrupt

Alex Oren

Intellectual 480 points

Hi,

I'm using the F28335 Delfino

Is it possible to configure two sources for a single XINTn interrupt?

I have a code inside the interrupt routine that is already triggered by XINT2 interrupt. I want to add an additional source GPIO to trigger the same code.

How can I do this?

Thanks

over 9 years ago

0 Lori Heustess over 9 years ago

TI__Guru* 93800 points

You could
Configure XINT1 to be triggered by GPIOX,
Configure XINT2 to be triggered by GPIOY and
Then assign the same ISR vector to both interrupts in the PIE. i.e. both ISRs vector to the same code.

0 Alex Oren over 9 years ago in reply to Lori Heustess

Intellectual 480 points

Hi Lori,

Thanks for your answer. Is this what you meant?

Assuming XINT2 and XINT4 should do the same function

PieVectTable.XINT2 = &xint2_isr;
PieVectTable.XINT3 = &xint3_isr;
PieVectTable.XINT4 = &xint2_isr;

0 Vivek Singh over 9 years ago in reply to Alex Oren

TI__Guru** 116601 points

Yes Oren,
This is exactly what Lori was suggesting.

Regards,
Vivek Singh

0 Alex Oren over 9 years ago in reply to Vivek Singh

Intellectual 480 points

Thank you