64 lines
2.6 KiB
C
64 lines
2.6 KiB
C
|
/*!
|
||
|
|
\file gd32f4xx_wwdgt.h
|
||
|
|
\brief definitions for the WWDGT
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
Copyright (C) 2016 GigaDevice
|
||
|
|
|
||
|
|
2016-08-15, V1.0.0, firmware for GD32F4xx
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef GD32F4XX_WWDGT_H
|
||
|
|
#define GD32F4XX_WWDGT_H
|
||
|
|
|
||
|
|
#include "gd32f4xx.h"
|
||
|
|
|
||
|
|
/* WWDGT definitions */
|
||
|
|
#define WWDGT WWDGT_BASE
|
||
|
|
|
||
|
|
/* registers definitions */
|
||
|
|
#define WWDGT_CTL REG32((WWDGT) + 0x00U) /*!< WWDGT control register */
|
||
|
|
#define WWDGT_CFG REG32((WWDGT) + 0x04U) /*!< WWDGT configuration register */
|
||
|
|
#define WWDGT_STAT REG32((WWDGT) + 0x08U) /*!< WWDGT status register */
|
||
|
|
|
||
|
|
/* bits definitions */
|
||
|
|
/* WWDGT_CTL */
|
||
|
|
#define WWDGT_CTL_CNT BITS(0,6) /*!< WWDGT counter value */
|
||
|
|
#define WWDGT_CTL_WDGTEN BIT(7) /*!< WWDGT counter enable */
|
||
|
|
|
||
|
|
/* WWDGT_CFG */
|
||
|
|
#define WWDGT_CFG_WIN BITS(0,6) /*!< WWDGT counter window value */
|
||
|
|
#define WWDGT_CFG_PSC BITS(7,8) /*!< WWDGT prescaler divider value */
|
||
|
|
#define WWDGT_CFG_EWIE BIT(9) /*!< early wakeup interrupt enable */
|
||
|
|
|
||
|
|
/* WWDGT_STAT */
|
||
|
|
#define WWDGT_STAT_EWIF BIT(0) /*!< early wakeup interrupt flag */
|
||
|
|
|
||
|
|
/* constants definitions */
|
||
|
|
#define CFG_PSC(regval) (BITS(7,8) & ((uint32_t)(regval) << 7)) /*!< write value to WWDGT_CFG_PSC bit field */
|
||
|
|
#define WWDGT_CFG_PSC_DIV1 CFG_PSC(0) /*!< the time base of WWDGT = (PCLK1/4096)/1 */
|
||
|
|
#define WWDGT_CFG_PSC_DIV2 CFG_PSC(1) /*!< the time base of WWDGT = (PCLK1/4096)/2 */
|
||
|
|
#define WWDGT_CFG_PSC_DIV4 CFG_PSC(2) /*!< the time base of WWDGT = (PCLK1/4096)/4 */
|
||
|
|
#define WWDGT_CFG_PSC_DIV8 CFG_PSC(3) /*!< the time base of WWDGT = (PCLK1/4096)/8 */
|
||
|
|
|
||
|
|
/* function declarations */
|
||
|
|
/* reset the window watchdog timer configuration */
|
||
|
|
void wwdgt_deinit(void);
|
||
|
|
/* start the window watchdog timer counter */
|
||
|
|
void wwdgt_enable(void);
|
||
|
|
|
||
|
|
/* configure the window watchdog timer counter value */
|
||
|
|
void wwdgt_counter_update(uint16_t counter_value);
|
||
|
|
/* configure counter value, window value, and prescaler divider value */
|
||
|
|
void wwdgt_config(uint16_t counter, uint16_t window, uint32_t prescaler);
|
||
|
|
|
||
|
|
/* enable early wakeup interrupt of WWDGT */
|
||
|
|
void wwdgt_interrupt_enable(void);
|
||
|
|
/* check early wakeup interrupt state of WWDGT */
|
||
|
|
FlagStatus wwdgt_flag_get(void);
|
||
|
|
/* clear early wakeup interrupt state of WWDGT */
|
||
|
|
void wwdgt_flag_clear(void);
|
||
|
|
|
||
|
|
#endif /* GD32F4XX_WWDGT_H */
|