rm42 gio

Yuan Fa Ho

Prodigy 200 points

Hi everyone,

How do i enable both rising and falling edge interrupt at the same time for a single GIO pin.

Thanks in advance.

regards,

Yuan Fa

over 11 years ago

0 KARTHIKEYAN RAJAMANICKAM over 11 years ago

TI__Genius 11645 points

Please refer to GIOINTDET register in GIO module, if you set it to '1' for a particular a particular pin, then interrupt is generated for both the edges.

0 Yuan Fa Ho over 11 years ago in reply to KARTHIKEYAN RAJAMANICKAM

Prodigy 200 points

Hi Karthik,

Thanks for your help, it seems to be working after adding the following code in gio.c if i want bit 7 of gio to have both edge interrupts.

gioREG->INTDET = (uint32)((uint32)0U << 0U) /* Bit 0 */
| (uint32)((uint32)0U << 1U) /* Bit 1 */
| (uint32)((uint32)0U << 2U) /* Bit 2 */
| (uint32)((uint32)0U << 3U) /* Bit 3 */
| (uint32)((uint32)0U << 4U) /* Bit 4 */
| (uint32)((uint32)0U << 5U) /* Bit 5 */
| (uint32)((uint32)0U << 6U) /* Bit 6 */
| (uint32)((uint32)1U << 7U); /* Bit 7 */

regards,

Yuan Fa

0 Saurav Agarwala42 over 9 years ago in reply to Yuan Fa Ho

Prodigy 40 points

Hi Karthik

If setting the bit for gioREG->INTDET activates both edges interrupt, please explain me how does the register gioREG->POL work? I guess setting this register means when we want rising edge or trailing edge interrupt. Really confused, please help!

Regards
Saurav

0 Anthony F. Seely over 9 years ago in reply to Saurav Agarwala42

TI__Guru 68920 points

See e2e.ti.com/.../536052

0 Saurav Agarwala42 over 9 years ago in reply to Anthony F. Seely

Prodigy 40 points

Thanks a lot Anthony!

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