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 /**@defgroup hal_iwdg Watch Dog
 * @ingroup hal
 */

#ifndef _HAL_IWDG_H_
#define _HAL_IWDG_H_

#include <stdint.h>

#if defined(__cplusplus)
extern "C" {
#endif

/**
 *@ingroup hal_iwdg
 *@brief config the watch dog.
 *
 *@par Description:
 *This API is used to config the watch dog. The time interval of feeding dog is prvscaler*reload/40.
 *@attention none.
 *
 *@param prvscaler      [IN] select the prescaler of the IWDG.
                             This parameter can be a value of @ref IWDG_Prescaler
 *@param reload         [IN] specifies the IWDG down-counter reload value.
                             This parameter must be a number between Min_Data = 0 and Max_Data = 0x0FFF
 *
 *@retval #int          0 if succeed or -1 if failed.
 *@par Dependency: none.
 *@see none.
 */
int hal_iwdg_config(uint8_t prvscaler, uint16_t reload);

/**
 *@ingroup hal_iwdg
 *@brief feed the watch dog.
 *
 *@par Description:
 *This API is used to feed the watch dog.
 *@attention none.
 *
 *@param none.
 *
 *@retval none.
 *@par Dependency: none.
 *@see none.
 */
void hal_iwdg_feed(void);

#if defined(__cplusplus)
}
#endif

#endif  /* _HAL_IWDG_H_ */
