我在64位树莓派3b上运行rt-threadAPI手册上的外设例程出现问题

发布于 2021-12-08 16:00:45 浏览：939 订阅该版

我在64位树莓派3b硬件上运行RT-threadAPI参考手册上的外设例程led
```
#include <rtthread.h>
#include <rtdevice.h>
#include <stdlib.h>
#define LED_PIN_NUM 11
static int pin_num;
static void led_entry(void* parameter)
{
    int count = 0;
    /* 设置PIN脚模式为输出 */
    rt_pin_mode(pin_num, PIN_MODE_OUTPUT);
    while (1)
    {
        count++;
        rt_kprintf("thread run count : %d\r\n", count);
        /* 拉低PIN脚 */
        rt_pin_write(pin_num, PIN_LOW);
        rt_kprintf("led on!\r\n");
        /* 延时1000ms */
        rt_thread_mdelay(1000);
        /* 拉高PIN脚 */
        rt_pin_write(pin_num, PIN_HIGH);
        rt_kprintf("led off!\r\n");
        rt_thread_mdelay(1000);
    }
}

static int led_sample(int argc, char *argv[])
{
    rt_thread_t tid;
    rt_err_t ret = RT_EOK;
    if (argc ==2)
    {
        pin_num = atoi(argv[1]);
    }
    else
    {
        pin_num = LED_PIN_NUM;
    }
    tid = rt_thread_create("led", led_entry, RT_NULL, 512, RT_THREAD_PRIORITY_MAX / 3, 20);
    if (tid != RT_NULL)
    {
        rt_thread_startup(tid);
    }
    else
    {
        ret = RT_ERROR;
    }
    return ret;
}

MSH_CMD_EXPORT(led_sample, led sample);
```
相比于API上的代码我只是将pin引脚改为了11，但是在生成img文件拷贝到树莓派上运行时却报错。
错误如下
![QQ截图20211208155935.png](https://oss-club.rt-thread.org/uploads/20211208/1598f4dc97c470943ebfd59ca432d749.png)
程序在assertion failed这一行之后就卡死不再响应了，请问是什么问题导致的，该如何解决？