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TM4C1294NCPDT: how to enable divsclk snd configure

Part Number: TM4C1294NCPDT

Hi team,

  I'm new to tiva C, I'm trying to enable DIVSCLK .

    I learnt that  I'll need drivers from tivaware to configure GPIO to enable DIVSCLK

MAP_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |SYSCTL_OSC_MAIN |SYSCTL_USE_PLL |
SYSCTL_CFG_VCO_480), 120000000);

GPIOPinConfigure(GPIO_PQ4_DIVSCLK);
GPIODirModeSet(GPIO_PORTQ_BASE, GPIO_PIN_4, GPIO_DIR_MODE_HW);
GPIOPadConfigSet(GPIO_PORTQ_BASE, GPIO_PIN_4, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD);
SysCtlClockOutConfig(SYSCTL_CLKOUT_EN | SYSCTL_CLKOUT_SYSCLK, 10);

IN this opuput pin is no responce pin PQ4 .

how to configure and give me a reference code

Thanks and Regards,

ARAVIND.S.R