下载系统SCB_CFSR_UFSR:0x01 UNDEFINSTR错误

发布于 2024-09-24 11:56:31 浏览：310 订阅该版

请教下载系统出现 `SCB_CFSR_UFSR:0x01 UNDEFINSTR` 错误，大神们该如何解决？

```
#include <rtthread.h>
#include <rtdevice.h>
#include <board.h>
#include <stdio.h>
#include <stdlib.h>
#include "drv_qspi.h"
#include <string.h>
#include <stdio.h>
//#include <stdint.h>
#include "mqttclient.h"
#include "time.h"
//#include "cpu_usage.h"

#define LED1_PIN    GET_PIN(E, 5)
#define LED2_PIN    GET_PIN(E, 6)
#define LED3_PIN    GET_PIN(B, 12)

int main(void)
{
    rt_pin_mode(LED1_PIN , PIN_MODE_OUTPUT);
    rt_pin_mode(LED2_PIN , PIN_MODE_OUTPUT);
    rt_pin_mode(LED3_PIN , PIN_MODE_OUTPUT);

while (1)
    {
     rt_pin_write(LED1_PIN, PIN_HIGH);
     rt_thread_mdelay(1000);
     rt_pin_write(LED2_PIN, PIN_HIGH);
     rt_thread_mdelay(1000);
     rt_pin_write(LED3_PIN, PIN_HIGH);
     rt_thread_mdelay(1000);
     rt_pin_write(LED1_PIN, PIN_LOW);
     rt_pin_write(LED2_PIN, PIN_LOW);
     rt_pin_write(LED3_PIN, PIN_LOW);
     rt_thread_mdelay(1000);
    }
    return RT_EOK;

}
```

![微信截图_20240924115428.png](https://oss-club.rt-thread.org/uploads/20240924/a97df58317bfacddcaaea69251a0e5d7.png.webp)