rt-thread/bsp/CME_M7/StdPeriph_Driver/src/cmem7_wdg.c

/**
	*****************************************************************************
	* @file     cmem7_wdg.c
	*
	* @brief    CMEM7 watchdog source file
	*
	*
	* @version  V1.0
	* @date     3. September 2013
	*
	* @note               
	*           
	*****************************************************************************
	* @attention
	*
	* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
	* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
	* TIME. AS A RESULT, CAPITAL-MICRO SHALL NOT BE HELD LIABLE FOR ANY DIRECT, 
	* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
	* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
	* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
	*
	* <h2><center>&copy; COPYRIGHT 2013 Capital-micro </center></h2>
	*****************************************************************************
	*/
	
#include "cmem7_wdg.h"

static uint32_t wdg_GetClock() {
	return SYSTEM_CLOCK_FREQ / (1 << (GLOBAL_CTRL->CLK_SEL_0_b.WDG_CLK + 1));
}

void WDG_DeInit(void){
  SOFT_RESET->SOFTRST_b.WDT_n = 0;
	SOFT_RESET->SOFTRST_b.WDT_n = 1;
}

void WDG_Init(uint8_t trigger, uint16_t ResetMillSecond) {
	assert_param(IS_WDG_TRIGGER_MODE(trigger));
	
	WDG->INT_CTRL_b.TRIGGER_MODE = trigger;
	WDG->LEN = ((uint64_t)wdg_GetClock()) * ResetMillSecond / 1000;
}

void WDG_ITConfig(uint8_t Int, BOOL Enable) {
	assert_param(IS_WDG_INT(Int));
	
	WDG->CTRL_b.INT_LEN = Int;
	WDG->INT_CTRL_b.MASK = !Enable;
}

BOOL WDG_GetITStatus() {
	return (WDG->INT_STA_b.STA == 1) ? TRUE : FALSE;
}

void WDG_ClearITPendingBit() {
	WDG->INT_STA_b.STA = 1;
}

void WDG_Cmd(BOOL Enable) {
	WDG->CTRL_b.EN = Enable;
}