rt-thread studio 新建 gd32f450工程

发布于 2023-03-14 10:33:40 浏览：934 订阅该版

[tocm]

开发环境：
  rt-thread studio 软件版本是：2.2.6；开发板的软件包是：GD32450Z-GD-EVAL版本是V1.0.1；开发板使用兆易的官方开发板GD32F450ZKT6。
  基于开发板新建工程，修改mian函数，如下
```
int main(void)
{
    while(1)
    {
        rt_kprintf("gd32 demo\r\n");
    }
    return 0;
}
```
  编译正常，使用stlink下载到开发板，结果正常，现象如下：
![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230314/601a4ce95c65383d2e05457c304816c0.png)
### 如何设置系统时钟？
![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230314/c1b9df21b9703bb7e060b5fe78fc1af5.png)
![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230314/13a09ac7065bc03f54578852f04f78a0.png)
![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230314/d64b1308c1feb391432ea924eb0214f8.png)
![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230314/6db3807c966a0972f0bb53a6ecd7981a.png)
![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230314/9a027777ac8b90ff783b1ae731f639a6.png)
![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230314/f851d9ceb46a8cc800df4cbb18a60d10.png)
### 设置系统1ms滴答
打开rt-thread setting
![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230314/992425d7cdbe2df405cee869b26845af.png.webp)
### 使用内部ram
系统默认使用的外部ram，如何改为单片机内部ram？搜索BSP_USING_SDRAM，结果如下：
![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230314/1f2a54edbf5afead013ea9e90c5a1cb6.png.webp)
修改成下图：
![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230314/883be2cbfa6501936a885a8391b19505.png.webp)
重新打开rt-thread setting，进行保存。保存成功后，查看工程，如下：
![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230314/8fcd9820f8a5819b8e330f389faa1b34.png)。已将外部ram修改为内部ram。