rgv-kinco/applications/watchdog.c

#include <rtthread.h>
#include <rtdevice.h>

#include <bms.h>
#include <hardware.h>

#define LOG_TAG               "WDT"
#define LOG_LVL                      LOG_LVL_INFO
#include <ulog.h>

#define IWDG_DEVICE_NAME    "wdt"    /* 看门狗设备名称 */
static rt_device_t wdg_dev = RT_NULL;         /* 看门狗设备句柄 */

static	rt_thread_t	wdg_thread	= RT_NULL;	

void watchdog_idle_hook(void)
{
	if(wdg_dev)
	{
		rt_device_control(wdg_dev, RT_DEVICE_CTRL_WDT_KEEPALIVE, NULL);
		
		
	}
    
        
}

	
rt_uint32_t A,B;   
static void wdg_thread_entry(void* parameter)
{
	uint16_t rsoc; 	//剩余容量百分比
	while(1)
	{
		
		if(wdg_dev)
		{
			rt_device_control(wdg_dev, RT_DEVICE_CTRL_WDT_KEEPALIVE, NULL);
			//		LOG_I("w");
		}
		rsoc = get_bat_rsoc();	
		if(rsoc>=95)
		{
			BTY_AUTO_OFF;
		}

//		LOG_I("time:%d",rt_tick_get());
		rt_thread_delay(1000);
	}	
}

static int iwdg_init(void)
{
    rt_err_t ret = RT_EOK;
    rt_uint32_t timeout = 5;    /* s,溢出时间 */

    wdg_dev = rt_device_find(IWDG_DEVICE_NAME);
    if (!wdg_dev)
    {
        rt_kprintf("find %s failed!\n", IWDG_DEVICE_NAME);
        return -RT_ERROR;
    }
    /* 初始化设备 */
    ret = rt_device_init(wdg_dev);
    if (ret != RT_EOK)
    {
        rt_kprintf("initialize %s failed!\n", IWDG_DEVICE_NAME);
        return -RT_ERROR;
    }
    /* 设置看门狗溢出时间 */
    ret = rt_device_control(wdg_dev, RT_DEVICE_CTRL_WDT_SET_TIMEOUT, &timeout);
    if (ret != RT_EOK)
    {
        rt_kprintf("set %s timeout failed!\n", IWDG_DEVICE_NAME);
        return -RT_ERROR;
    }
	rt_device_control(wdg_dev, RT_DEVICE_CTRL_WDT_START, NULL);
	
    /* 设置空闲线程回调函数 */
    rt_thread_idle_sethook(watchdog_idle_hook);
    LOG_I("set watchdog %s timeout: %us", IWDG_DEVICE_NAME, timeout);
	
	
	wdg_thread =                         
	rt_thread_create( "wdg_thread",              
				  wdg_thread_entry,  	   
				  RT_NULL,             		   
				  4096,                		  
				  29,                 		  
				  20);               		  
	if (wdg_thread != RT_NULL)
	{
		rt_thread_startup(wdg_thread);
		LOG_I(" wdg_thread create..");
	}
    return ret;
}
INIT_APP_EXPORT(iwdg_init);