rt_device_control(hw_dev, HWTIMER_CTRL_FREQ_SET, &freq); /设置模式为周期性定时器(若未设置,默认是HWTIMER_MODE_ONESHOT)/ mode = HWTIMER_MODE_PERIOD; ret = rt_device_control(hw_dev, HWTIMER_CTRL_MODE_SET, &mode); if (ret != RT_EOK) { rt_kprintf("set mode failed! ret is :%dn"...
21 rt_device_open(hw_dev, RT_DEVICE_OFLAG_RDWR); 22 /* 设置超时回调函数 */ 23 rt_device_set_rx_indicate(hw_dev, timeout_cb); 24 /* 设置计数频率(默认1Mhz或支持的最小计数频率) */ 25 rt_device_control(hw_dev, HWTIMER_CTRL_FREQ_SET, &freq); 26 /* 设置模式为周期性定时器 */ ...
static rt_err_t receive_timeout_callback(rt_device_t dev, rt_size_t size){ struct infrared_...
rt_kprintf("open %s device failed!\n", HWTIMER_DEV_NAME);returnret; }/*设置超时回调函数*/rt_device_set_rx_indicate(tim_dev, timeout_cb);#if0//默认配置就行,无需配置/*设置计数频率(若未设置该项,默认为1Mhz 或 支持的最小计数频率)*/rt_device_control(tim_dev, HWTIMER_CTRL_FREQ_SET,&...
/* 设置超时回调函数 */rt_device_set_rx_indicate(hw_dev,timeout_cb);/* 设置计数频率(默认1Mhz或 支持的最小计数频率) */rt_device_control(hw_dev,HWTIMER_CTRL_FREQ_SET,&freq);/* 设置模式为周期性定时器 */mode=HWTIMER_MODE_PERIOD;rt_device_control(hw_dev,HWTIMER_CTRL_MODE_SET,&mode);...
rt_device_set_rx_indicate(rt_device_t dev, rt_err_t (*rx_ind)(rt_device_t dev,rt_size_t size)) //控制定时器 /* dev:定时器设备句柄 cmd:控制命令,可取 HWTIMER_CTRL_FREQ_SET 设置计数频率 HWTIMER_CTRL_STOP 停止定时器 HWTIMER_CTRL_INFO_GET 获取定时器特征信息 HWTIMER_CTRL_MODE_SET ...
RTT设备与驱动之硬件定时器,硬件定时器可以对外部时钟进行计数,利用内部时钟进行定时。函数描述rt_device_trt_device_find(constchar*name);查找定时器设备rt_err_trt_device_open(rt_device_tdev,rt_uint16_toflags);ofalgs=RT_DEVICE_OFLAG_RDWR以读写方式打开定时器设
(tim14,tim14_callback);rt_uint32_tfreq=1000;rt_device_control(tim14,HWTIMER_CTRL_FREQ_SET,&freq);rt_hwtimer_mode_tmode=HWTIMER_MODE_PERIOD;rt_device_control(tim14,HWTIMER_CTRL_MODE_SET,&mode);timeout_s.sec=0;timeout_s.usec=dcsr()->enc_rot.interval*1000;if(rt_device_write(tim14...
ioctl(wdt_fd, CTRL_WDT_KEEPALIVE, NULL) 1.3.6.2 内核态程序使用WDT 获取设备句柄 wdt_dev = rt_device_find(WDT_DEVICE_NAME); 初始化设备 rt_device_init(wdt_dev); 设置超时时间 rt_device_control(wdt_dev, KD_DEVICE_CTRL_WDT_SET_TIMEOUT, &timeout); 启动看门狗计时 rt_device_control(...
} static rt_err_t rt_hwtimer_open(struct rt_device *dev, rt_uint16_t oflag) { rt_err_t result = RT_EOK; rt_hwtimer_t *timer; timer = (rt_hwtimer_t *)dev; if (timer->ops->control != RT_NULL) { timer->ops->control(timer, HWTIMER_CTRL_FREQ_SET, &timer->...