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DM3725: Regarding usage of GPIO multiplexed on the uart2_cts pin

Abhinav
Expert 1065 points
Part Number: DM3725

Hi,

I need directions on how to use GPIO multiplexed on the uart2_cts pin to get interrupt to wakeup the system.
Actually I am implementing eHCILL protocol for BT (chip - wl18xx).
For implementing wakeup from controller side I need the CTS ISR implementation.

Refer the below thread initiated by me.
https://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/537/p/571607/2098867#2098867

Please tell me the procedure for interrupt registration on uart_cts.

Regards,
Abhi

  • 0
    TI__Guru 65405 points
    Abhi,

    The UART, GPIO, and McSPI modules generate an asynchronous wake-up event (their interface and functional clocks can be gated during the sleep period). However, because the GPTIMERs generate a synchronous wake-up event, they require their functional clock to be active during the sleep period; their interface clock can be gated. For more information about the interrupt capability of a module.
    The wake-up config procedure in case of CTS pin is configured as GPIO is described in TRM section 25.5.3 Interrupt and Wakeup.

    BR
    Tsvetolin Shulev