cs_ex1_DCOSetup.c

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#include "driverlib.h"
 
//******************************************************************************
//******************************************************************************
 
void main(void)
{
  //Stop WDT
  WDT_A_hold(WDT_A_BASE);
 
  //Set DCO Frequency to 8MHz
  CS_setDCOFreq(CS_DCORSEL_0,CS_DCOFSEL_3);
 
  //configure MCLK, SMCLK and ACLK to be source by DCOCLK
  CS_initClockSignal(CS_ACLK,CS_DCOCLK_SELECT,CS_CLOCK_DIVIDER_1);
  CS_initClockSignal(CS_SMCLK,CS_DCOCLK_SELECT,CS_CLOCK_DIVIDER_1);
  CS_initClockSignal(CS_MCLK,CS_DCOCLK_SELECT,CS_CLOCK_DIVIDER_1);
 
  //Set P2.0 as Output Low (for setup as ACLK).
  /*
 
   * Select Port 2
   * Set Pin 0 to output Low.
   */
  GPIO_setOutputLowOnPin(
            GPIO_PORT_P2,
            GPIO_PIN0
    );
 
  //Set P2.0 as Ternary Module Function Output.
  /*
 
   * Select Port 2
   * Set Pin 0 to output Ternary Module Function, (ACLK).
   */
  GPIO_setAsPeripheralModuleFunctionOutputPin(
            GPIO_PORT_P2,
            GPIO_PIN0,
            GPIO_TERNARY_MODULE_FUNCTION
    );
 
  while(1);
}