89 lines
4.2 KiB
C
89 lines
4.2 KiB
C
/*!
|
|
\file gd32f4xx_wwdgt.h
|
|
\brief definitions for the WWDGT
|
|
|
|
\version 2016-08-15, V1.0.0, firmware for GD32F4xx
|
|
\version 2018-12-12, V2.0.0, firmware for GD32F4xx
|
|
\version 2020-09-30, V2.1.0, firmware for GD32F4xx
|
|
*/
|
|
|
|
/*
|
|
Copyright (c) 2020, GigaDevice Semiconductor Inc.
|
|
|
|
Redistribution and use in source and binary forms, with or without modification,
|
|
are permitted provided that the following conditions are met:
|
|
|
|
1. Redistributions of source code must retain the above copyright notice, this
|
|
list of conditions and the following disclaimer.
|
|
2. Redistributions in binary form must reproduce the above copyright notice,
|
|
this list of conditions and the following disclaimer in the documentation
|
|
and/or other materials provided with the distribution.
|
|
3. Neither the name of the copyright holder nor the names of its contributors
|
|
may be used to endorse or promote products derived from this software without
|
|
specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
|
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
|
OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#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 */
|