使用硬件定时器，运行官方例程。配置TIM3成功。改成TIM1无效。卡死在延时处

发布于 2021-12-22 10:23:01 浏览：1705 订阅该版

RTTV4.04.使用stduio+cube配置。
配置TIM3正常使用，使用TIM1卡死在rt_thread_mdelay延时处。
rt_thread_mdelay延时的时钟使用SYS或者TIM6都卡在这。
怀疑是优先级的问题，更改TIM1定时器优先级最低也没有用。
board。h中定义
```c
#define BSP_USING_TIM
#ifdef BSP_USING_TIM
    #define BSP_USING_TIM1
    #ifdef BSP_USING_TIM1
        #ifndef TIM1_CONFIG
            #define TIM1_CONFIG                                        \
                {                                                       \
                   .tim_handle.Instance     = TIM1,                    \
                   .tim_irqn                = TIM1_UP_TIM10_IRQn,  \
                   .name                    = "timer1",                \
                }
        #endif /* TIM1_CONFIG */
    #endif /* TIM1_CONFIG */
    #define BSP_USING_TIM3
    #ifdef BSP_USING_TIM3
        #ifndef TIM3_CONFIG
        #define TIM3_CONFIG                                        \
            {                                                       \
               .tim_handle.Instance     = TIM3,                    \
               .tim_irqn                = TIM3_IRQn,  \
               .name                    = "timer3",                \
            }
        #endif /* TIM3_CONFIG */
    #endif /* BSP_USING_TIM3 */
```
官方例程只改了设备名
```c
/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2021-12-21     Administrator       the first version
 */
/*
 * 程序清单：这是一个 hwtimer 设备使用例程
 * 例程导出了 hwtimer_sample 命令到控制终端
 * 命令调用格式：hwtimer_sample
 * 程序功能：硬件定时器超时回调函数周期性的打印当前tick值，2次tick值之差换算为时间等同于定时时间值。
*/

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

#define HWTIMER_DEV_NAME   "timer1"     /* 定时器名称 */

/* 定时器超时回调函数 */
static rt_err_t timeout_cb(rt_device_t dev, rt_size_t size)
{
    rt_kprintf("this is hwtimer timeout callback fucntion!\n");
    rt_kprintf("tick is :%d !\n", rt_tick_get());

return 0;
}

static int hwtimer_sample(int argc, char *argv[])
{
    rt_err_t ret = RT_EOK;
    rt_hwtimerval_t timeout_s;      /* 定时器超时值 */
    rt_device_t hw_dev = RT_NULL;   /* 定时器设备句柄 */
    rt_hwtimer_mode_t mode;         /* 定时器模式 */

/* 查找定时器设备 */
    hw_dev = rt_device_find(HWTIMER_DEV_NAME);
    if (hw_dev == RT_NULL)
    {
        rt_kprintf("hwtimer sample run failed! can't find %s device!\n", HWTIMER_DEV_NAME);
        return RT_ERROR;
    }

/* 以读写方式打开设备 */
    ret = rt_device_open(hw_dev, RT_DEVICE_OFLAG_RDWR);
    if (ret != RT_EOK)
    {
        rt_kprintf("open %s device failed!\n", HWTIMER_DEV_NAME);
        return ret;
    }

/* 设置超时回调函数 */
    rt_device_set_rx_indicate(hw_dev, timeout_cb);

/* 设置模式为周期性定时器 */
    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 :%d\n", ret);
        return ret;
    }

/* 设置定时器超时值为5s并启动定时器 */
    timeout_s.sec = 5;      /* 秒 */
    timeout_s.usec = 0;     /* 微秒 */

if (rt_device_write(hw_dev, 0, &timeout_s, sizeof(timeout_s)) != sizeof(timeout_s))
    {
        rt_kprintf("set timeout value failed\n");
        return RT_ERROR;
    }

/* 延时3500ms */
    rt_thread_mdelay(3500);

/* 读取定时器当前值 */
    rt_device_read(hw_dev, 0, &timeout_s, sizeof(timeout_s));
    rt_kprintf("Read: Sec = %d, Usec = %d\n", timeout_s.sec, timeout_s.usec);

return ret;
}
/* 导出到 msh 命令列表中 */
MSH_CMD_EXPORT(hwtimer_sample, hwtimer sample);

```
debug定位卡死在这里,搜了一下是硬件错误卡这里了。
```c
/**
 * @brief  This is the code that gets called when the processor receives an 
 *         unexpected interrupt.  This simply enters an infinite loop, preserving
 *         the system state for examination by a debugger.
 * @param  None     
 * @retval None       
*/
    .section  .text.Default_Handler,"ax",%progbits
Default_Handler:
Infinite_Loop:
  b  Infinite_Loop
  .size  Default_Handler, .-Default_Handler
```

aozima 2021-12-22

调网络不抓包，调I2C等时序不上逻辑分析仪，就像电工不用万用表！多用整理的好的文字，比截图更省流量，还能在整理过程中思考。

用户名由3_15位 2021-12-22

代码总在「分分钟搞定」的狂喜与「必有暗坑」的隐忧间往复

用户名由3_15位 2021-12-22

代码总在「分分钟搞定」的狂喜与「必有暗坑」的隐忧间往复

imwhisky 2022-08-30

whisky

用户名由3_15位 2024-05-07

代码总在「分分钟搞定」的狂喜与「必有暗坑」的隐忧间往复

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3 个回答

saberlily 2024-05-07

这家伙很懒，什么也没写！

解决了，贴一下详细步骤，供出现此类问题的朋友参考：

```c
/* Core:5.02，MCU:F407 */
/* 1、增加TIM1_CONFIG定义 */
#define TIM1_CONFIG                                    \
{                                                      \
   .tim_handle.Instance     = TIM1,                    \
   .tim_irqn                = TIM1_UP_TIM10_IRQn,      \
   .name                    = "timer1",                \
}
/* 2、增加TIM1中断入口 */
#ifdef BSP_USING_TIM1
void TIM1_UP_TIM10_IRQHandler(void)
{
    /* enter interrupt */
    rt_interrupt_enter();
    HAL_TIM_IRQHandler(&stm32_hwtimer_obj[TIM1_INDEX].tim_handle);
    /* leave interrupt */
    rt_interrupt_leave();
}
#endif
/* 3、扩展定时器中断回调-HAL_TIM_PeriodElapsedCallback */
#ifdef BSP_USING_TIM1
    if (htim->Instance == TIM1)
    {
        rt_device_hwtimer_isr(&stm32_hwtimer_obj[TIM1_INDEX].time_device);
    }
#endif

/* 4、时间不准问题是因为驱动里把TIM1默认挂在了APB1总线上 */
//在timer_ctrl和timer_init函数中增加TIM1，挂载TIM1到APB2上
if (tim->Instance == TIM1 || tim->Instance == TIM9 || tim->Instance == TIM10 || tim->Instance == TIM11)
```