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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2019-05-06 sundm75 first version
*/
#include "ls1c.h"
#include "ls1c_wdog.h"
/*
系统先配置看门狗使能位 WDT_EN;
然后配置看门狗计数器的初始值 WDT_TIMER;
当设置 WDT_SET 后，计数器开始减计数;
当还没有减到 0 时，重置看门狗计数器，系统不会重启;
当看门狗计数器减到 0 时，则系统重启。
*/
static unsigned int WDT_timer = 0;
/* 暂时为空 */
unsigned int Wdog_Init(void)
{
return 0;
}
/* 配置看门狗使能寄存器(WDT_EN) */
unsigned int Wdog_Enable(void)
{
unsigned int ctrl;
ctrl = (WDT_EN);
ctrl |= 0x01;
WDT_EN = ctrl;
return 0;
}
/* 配置看门狗失能寄存器(WDT_EN) */
unsigned int Wdog_Disable(void)
{
unsigned int ctrl;
ctrl = (WDT_EN);
ctrl &= ~0x01;
WDT_EN = ctrl;
return 0;
}
/* 配置看门狗设置寄存器 (WDT_SET) */
unsigned int Wdog_Set(void)
{
unsigned int ctrl;
ctrl = (WDT_SET);
ctrl |= 0x01;
WDT_SET = ctrl;
return 0;
}
/* 配置看门狗设置寄存器 (WDT_SET) */
unsigned int Wdog_Reset(void)
{
unsigned int ctrl;
ctrl = (WDT_SET);
ctrl &= ~0x01;
WDT_SET = ctrl;
return 0;
}
/* 获得看门狗计数器(WDT_timer) 的值*/
unsigned int Wdog_GetValue(void)
{
unsigned int cnt;
cnt = (WDT_TIMER);
return cnt;
}
/* 配置看门狗计数器(WDT_timer)的值*/
unsigned int Wdog_LoadValue(unsigned int cnt)
{
WDT_TIMER = cnt;
WDT_timer = cnt;
return 0;
}
/* 获得看门狗计数器设定值 */
unsigned int Wdog_GetPreValue(void)
{
return WDT_timer;
}
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