CC3235MODSF: Differentiate GPIO wake up from regular wake up in Intermittently Connected state

Sundaresan Thangeswaran

Part Number: CC3235MODSF

Hi,

I have set the CC3235 launchpad to intermittently connected mode by using the sample program. It automatically wake up in certain interval and by activate the GPIO pin. I would like to differentiate normal wake up and GPIO wake up.

I have updated the function name in wakeLPDSFxn, but it is never called.

Could you please help me to differentiate the gpio wake up from regular wake up.

const PowerCC32XX_ConfigV1 PowerCC32XX_config = {
.policyInitFxn = PowerCC32XX_initPolicy,
.policyFxn = PowerCC32XX_sleepPolicy,
.enterLPDSHookFxn = wakeHookFxn,
.resumeLPDSHookFxn = wakeLPDSFxn,
.enablePolicy = true,
.enableGPIOWakeupLPDS = true,
.enableGPIOWakeupShutdown = true,
.enableNetworkWakeupLPDS = true,
.wakeupGPIOSourceLPDS = PRCM_LPDS_GPIO13,
.wakeupGPIOTypeLPDS = PRCM_LPDS_FALL_EDGE,
.wakeupGPIOFxnLPDS = gpioWakeFxn,
.wakeupGPIOFxnLPDSArg = 0,
.wakeupGPIOSourceShutdown = PRCM_HIB_GPIO13,
.wakeupGPIOTypeShutdown = PRCM_HIB_RISE_EDGE,
.ramRetentionMaskLPDS = PRCM_SRAM_COL_1|PRCM_SRAM_COL_2|PRCM_SRAM_COL_3|PRCM_SRAM_COL_4,
.keepDebugActiveDuringLPDS = true,
.ioRetentionShutdown = PRCM_IO_RET_GRP_1,
.pinParkDefs = parkInfo,
.numPins = 31
};

void gpioWakeFxn(uint_least8_t argument)
{

g_performOtaCommand = 1;

}

Regards,

Sundar

over 5 years ago

0 Kobi Leibovitch over 5 years ago

TI__Guru 63006 points

Hi Sundar,

in the intermittently connected mode the device goes to hibernate (shutdown) mode and not to LPDS (which explains why your hook callback is not invoked).

You can use PRCMHibernateWakeupCauseGet() to get the source of the wakeup.

Br,

Kobi

0 Sundaresan Thangeswaran over 5 years ago in reply to Kobi Leibovitch

Intellectual 545 points

Hi Kobi,

It is working great. Thank you for your help.

Above function return 2 for timer wake up and 4 GPIO wake up (Sw2 switch).

One more question, Will it return different value for different GPIO pin wake up?

Regards,

Sundar

0 Kobi Leibovitch over 5 years ago in reply to Sundaresan Thangeswaran

TI__Guru 63006 points

no, see below the def from prcm.h:

//*****************************************************************************
// Values that can be passed to PRCMHibernateWakeupCauseGet().
//*****************************************************************************
#define PRCM_HIB_WAKEUP_CAUSE_SLOW_CLOCK 0x00000002
#define PRCM_HIB_WAKEUP_CAUSE_GPIO 0x00000004

0 Sundaresan Thangeswaran over 5 years ago in reply to Kobi Leibovitch

Intellectual 545 points

Hi Kobi,

Thanks for sharing the info. So I cannot differentiate the gpio pins while wake up from intermittent connection mode.

Regards,

Sundar

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CC3235MODSF: Differentiate GPIO wake up from regular wake up in Intermittently Connected state