ioctl(fd, WDIOC_SETTIMEOUT, &timeout); printf("The timeout was set to %d seconds\n", timeout); 如果设备的超时值的粒度只能到分钟,则这个例子可能实际打印"The timeout was set to 60 seconds"。 自从Linux 2.4.18内核,通过GETTIMEOUT ioctl命令查询当前超时值也是可能的: ioctl(fd, WDIOC_GETTIME...
intinit_wdt(void){rt_err_t ret=RT_EOK;rt_uint32_t timeout=100;wdg_dev=rt_device_find(WDT_DEV);if(!wdg_dev){rt_kprintf("find %s failed!\n",WDT_DEV);returnRT_ERROR;}rt_device_init(wdg_dev);ret=rt_device_control(wdg_dev,RT_DEVICE_CTRL_WDT_SET_TIMEOUT,&timeout);if(ret!=RT...
WDT初始化 intinit_wdt(void){rt_err_tret=RT_EOK;rt_uint32_ttimeout=100;wdg_dev=rt_device_find(WDT_DEV);if(!wdg_dev){rt_kprintf("find %s failed!\n",WDT_DEV);returnRT_ERROR;}rt_device_init(wdg_dev);ret=rt_device_control(wdg_dev,RT_DEVICE_CTRL_WDT_SET_TIMEOUT,&timeout);if(r...
// 宏定义所在文件相对路径:// rt-thread/components/drivers/include/drivers/watchdog.h#define RT_DEVICE_CTRL_WDT_GET_TIMEOUT (1)/* 获取溢出时间 */#define RT_DEVICE_CTRL_WDT_SET_TIMEOUT (2)/* 设置溢出时间 */#define RT_DEVICE_CTRL_WDT_KEEPALIVE (4)/* 喂狗 */#define RT_DEVICE_CTRL...
wdt.init(timeout) 初始化watchdog并马上启用.大部分设备的watchdog一旦启用就无法关闭. 参数 传入值类型 解释 int 超时时长,单位为毫秒 返回值 返回值类型 解释 bool 成功返回true,否则返回false(例如底层不支持) 例子 wdt.init(9000) sys.timerLoopStart(wdt.feed, 3000) wdt.setTimeout(timeout) 部分设备...
CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HIRC, CLK_CLKDIV_HCLK(1));/* Enable external XTAL 12MHz and...
Nordic SDK在设置看门狗的CRV值时,存在一个溢出漏洞。存在漏洞的源码为nrfx_wdt.c文件的nrfx_wdt_init接口。漏洞语句如下所示。 nrf_wdt_reload_value_set((p_config->reload_value*32768)/1000); 以上计算中,p_config->reload_value的值默认为WDT_CONFIG_RELOAD_VALUE宏的的值。此宏的定义如下所示,为看门狗...
rt_device_control(wdt_device, RT_DEVICE_CTRL_WDT_SET_TIMEOUT, &timeout);rt_device_control(wdt...
= accept(s, (struct sockaddr *)&rem_addr, &opt); 5,select 模式读取 socket 数据流 while(1) { FD_ZERO(&working_set); max_sd = client; FD_SET(client, &working_set); timeout.tv_sec = 3 * 60; timeout.tv_usec = 0; // Call select() and wait 5 minutes for it to complete....
*/voidWDT_IRQHandler(void){if((NRF_WDT->EVENTS_TIMEOUT!=0)&&((NRF_WDT->INTENSET)!=0)){//do something!! //复位前就2个32.768khz时钟周期的时间执行这个操作,在此之后,将发生复位}}/** 启动内部LFCLK晶振功能,和RTC一样 */voidlfclk_config(void){NRF_CLOCK->LFCLKSRC=(CLOCK_LFCLKSRC_SRC...