TMS320F280049: GPIO pins

Wen Li

Intellectual 2370 points

Part Number: TMS320F280049

Hi;

Are all the GPIOs pins of F280049 interrupt-able by an external hardware?

Specifically: GPIO1, GPIO15, and GPIO23.

Thanks!

Wen Li

over 4 years ago

0 Vivek Singh over 4 years ago

TI__Guru** 109025 points

Yes, all the GPIO pins can be use as external interrupt source.

Regards,

Vivek Singh

0 Wen Li over 4 years ago in reply to Vivek Singh

TI__Intellectual 2370 points

Thanks for the quick response!

Now, I am being specific to my application.

I assume following will work

The GPIO15 is connected to an external temperature sensor. When temperature is higher than a certain degree, the sensor will send a pulse to GPIO15; this event will interrupt the F280049. And the F280049 will enter the interrupt service routine to serve this event.

Is my assumption about the GPIO15 correct?

Wen Li

0 Vivek Singh over 4 years ago in reply to Wen Li

TI__Guru** 109025 points

HI Wen,

Yes, your understanding is correct but you need map GPIO15 to one of external interrupt (XINTx and enable it in corresponding XINTxCR register) via INPUT_XBAR.

Regards,

Vivek Singh

0 Wen Li over 4 years ago in reply to Vivek Singh

TI__Intellectual 2370 points

Hi Vivek;

Thank you so much for the help!

Wen

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TMS320F280049: GPIO pins