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