求助一下，我在调试社区代码里面的hwtimer_test时，遇到了一个很奇怪的问题：
进入MSH后，首次运行hwtimer_test时正常的，用例中的rt_thread_delay能够正常的delay延迟。但是当我第二次运行时，发现rt_thread_delay不能延时了。后面通过debug发现，在系统刚启动时查看list_thread状态，显示由tshell和idle线程，其中tshell是running状态，idle为ready状态，是正常的。在运行一次hwtimer命令后，再去查看list_thread发现idle线程状态有异常，idle被close掉了，并且线程的name也变化了。怀疑是踩内存了。但是目前我对这个问题没有了进一步的思路，发出来大家看下有没有什么思路能够提供给我的。。。下图是log
hwtimer_test代码如下：
rt-thread/examples/test/hwtimer_test.c@cndabaicndabai Remove C Style Command ShellLatest commit 221da7f on 23 Aug History 3 contributors@heyuanjie87@mysterywolf@cndabai111 lines (93 sloc) 2.71 KB/* * Copyright (c) 2006-2021, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes */#include <rtthread.h>#include <rtdevice.h>#include <finsh.h>#ifdef RT_USING_HWTIMER#define TIMER "timer0"static rt_err_t timer_timeout_cb(rt_device_t dev, rt_size_t size){ rt_kprintf("enter hardware timer isr\n"); return 0;}int hwtimer(void){ rt_err_t err; rt_hwtimerval_t val; rt_device_t dev = RT_NULL; rt_tick_t tick; rt_hwtimer_mode_t mode; int freq = 10000; int t = 5; if ((dev = rt_device_find(TIMER)) == RT_NULL) { rt_kprintf("No Device: %s\n", TIMER); return -1; } if (rt_device_open(dev, RT_DEVICE_OFLAG_RDWR) != RT_EOK) { rt_kprintf("Open %s Fail\n", TIMER); return -1; } /* 时间测量 */ /* 计数时钟设置(默认1Mhz或支持的最小计数频率) */ err = rt_device_control(dev, HWTIMER_CTRL_FREQ_SET, &freq); if (err != RT_EOK) { rt_kprintf("Set Freq=%dhz Fail\n", freq); goto EXIT; } /* 周期模式 */ mode = HWTIMER_MODE_PERIOD; err = rt_device_control(dev, HWTIMER_CTRL_MODE_SET, &mode); tick = rt_tick_get(); rt_kprintf("Start Timer> Tick: %d\n", tick); /* 设置定时器超时值并启动定时器 */ val.sec = t; val.usec = 0; rt_kprintf("SetTime: Sec %d, Usec %d\n", val.sec, val.usec); if (rt_device_write(dev, 0, &val, sizeof(val)) != sizeof(val)) { rt_kprintf("SetTime Fail\n"); goto EXIT; } rt_kprintf("Sleep %d sec\n", t); rt_thread_delay(t*RT_TICK_PER_SECOND); /* 停止定时器 */ err = rt_device_control(dev, HWTIMER_CTRL_STOP, RT_NULL); rt_kprintf("Timer Stoped\n"); /* 读取计数 */ rt_device_read(dev, 0, &val, sizeof(val)); rt_kprintf("Read: Sec = %d, Usec = %d\n", val.sec, val.usec); /* 定时执行回调函数 -- 单次模式 */ /* 设置超时回调函数 */ rt_device_set_rx_indicate(dev, timer_timeout_cb); /* 单次模式 */ mode = HWTIMER_MODE_PERIOD; err = rt_device_control(dev, HWTIMER_CTRL_MODE_SET, &mode); /* 设置定时器超时值并启动定时器 */ val.sec = t; val.usec = 0; rt_kprintf("SetTime: Sec %d, Usec %d\n", val.sec, val.usec); if (rt_device_write(dev, 0, &val, sizeof(val)) != sizeof(val)) { rt_kprintf("SetTime Fail\n"); goto EXIT; } /* 等待回调函数执行 */ rt_thread_delay((t + 1)*RT_TICK_PER_SECOND);EXIT: err = rt_device_close(dev); rt_kprintf("Close %s\n", TIMER); return err;}#ifdef RT_USING_FINSHMSH_CMD_EXPORT(hwtimer, "Test hardware timer");#endif#endif /* RT_USING_HWTIMER */© 2021 GitHub, Inc.TermsPrivacySecurityStatusDocsContact GitHubPricingAPITrainingBlogAboutLoading complete
