wdt270.c

dm270 source code

/*
    DM270 ARM Evaluation Software

    (c)Texas Instruments 2003
*/

/**
	\file wdt270.c
	\brief Watch Dog Timer Related APIs
*/

#include <wdt270.h>

/**
    \brief	Set WDT configuration

	\param  wdtConfig	WDT configuration paramters

    \return if success, \c E_PASS, else error code

	\see WDT_ConfigData
*/
STATUS WDT_setConfig( WDT_ConfigData *wdtConfig ){ 

  WDT_FSET(WDTMD, OPSEL, wdtConfig->wdtMode);
  WDT_FSET(WDTPRSCL, PRSCL, wdtConfig->wdtPrescale);
  WDT_RSET(WDTDIV, wdtConfig->wdtDivisor);
  WDT_FSET(WDTEXRST,WERST,wdtConfig->wdtExtRst);
  return((WDT_RGET( WDTDIV ) == wdtConfig->wdtDivisor) ? E_PASS : E_DEVICE);
}

/**
    \brief	Enable WDT

    \return if success, \c E_PASS, else error code

*/
STATUS WDT_enable(){
  WDT_FSET(WDTMD, ENABLE, 1);
  return ((WDT_FGET( WDTMD, ENABLE ) == 1) ? E_PASS : E_DEVICE);
}

/**
    \brief	Disable WDT

    \return if success, \c E_PASS, else error code

*/
STATUS WDT_disable(){
	WDT_FSET(WDTMD, ENABLE,0);
	return E_PASS;
}


/**
    \brief	Reset WDT

    \return if success, \c E_PASS, else error code

*/
STATUS WDT_reset(){

  WDT_FSET(WDTRST, WDTRST, 1);
  return E_PASS;
}