[资料] 机智云Gokit开发板之RT-Thread Nano快速创建工程
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 楼主 | 发布于 2017-11-11 | 只看楼主
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RT-Thread Nano是RT-Thread的精简版,只有内核、shell(msh)、设备驱动三大功能,以Keil5的pack形式发布。RT-Thread Nano在保证了具备完整功能的RTOS实时内核的前提下实现了极小的FLASH和RAM占用,默认配置下,FLASH可小至2.5KB, RAM可以小至1KB,对于当今主流32位MCU/SoC来说,跑起来毫无压力。

下面就跟随小编一起,看看如何在机智云gokit智能硬件开发板上将RT-Thread Nano跑起来吧~

一、RT-Thread Nano Pack安装

1.  使用STM32CubeMX创建一个可以点亮板载LED的基本工程,参考:http://club.gizwits.com/thread-3859-1-1.html
2.  在MDK5主界面上点击“Pack Install”按钮,进入Pack Install界面:
 

3.  在Pack Install界面下,RT-Thread Pack在右边栏中。点击“Install”可下载,点击“Update”可更新。
 

4.  如果在上图界面“Packs”栏中未发现“RT-Thread”,通过两种方法获取RT-Thread Pack。
第一种方法是直接从http://www.rt-thread.org/downloa ... rtthread.2.1.1.pack下载2.1.1版本的的RT-Thread Pack,然后双击完成安装。
第二种方法是在菜单“Packs”下点击“Check for Updates”,Update完成后,将可看到RT-Thread Pack,然后下载Pack再安装它。
 

二、kernel加载与应用


1.  在主界面点击“ManageRun-TimeEnvironment”进入加载页:
 

在“RTOS”一栏中选中“RT-Thread”,并在列表中选中“kernel”:
 

2.  确定后,RT-Thread的kernel文件会被自动添加进来:

 

Kernel文件包括:
clock.c
components.c
device.c
idle.c
ipc.c
irq.c
kservice.c
mem.c
object.c
scheduler.c
thread.c
timer.c
Cortex-M芯片内核移植代码:
cpuport.c
context_rvds.s
应用代码及配置文件:
board.c
rtconfig.h

三、修改源码适配机智云Gokit


1.需要做一些微小的修改才能在Gokit上跑起来:
1)修改Application/User分组下的stm32f1xx_it.c文件,删除如下3个函数:
  1. void HardFault_Handler(void);
  2. void PendSV_Handler(void);
  3. void SysTick_Handler(void);
复制代码
2)修改RTOS分组下的board.c上文件:
修改第24行为:
  1. #include "stm32f1xx_hal.h"
复制代码
修改第66行:取消注释,并加入2行代码如下。
  1. void SysTick_Handler(void)
  2. {
  3.         /* enter interrupt */
  4.         rt_interrupt_enter();
  5.          
  6.         HAL_IncTick();
  7.         HAL_SYSTICK_IRQHandler();

  8.         rt_tick_increase();
  9.          
  10.         /* leave interrupt */
  11.         rt_interrupt_leave();
  12. }
复制代码
3)在rtconfig.h使能动态内存管理:
 

此外,第15行,修改RT_TICK_PER_SECOND为1000。

2.  修改main.c文件,屏蔽掉while(1)死循环,加入测试代码:
 

  1. /**
  2.   ****************************************************
  3.   * File Name          : main.c
  4.   * Description        : Main program body
  5.   ****************************************************
  6.   ** This notice applies to any and all portions of this file
  7.   * that are not between comment pairs USER CODE BEGIN and
  8.   * USER CODE END. Other portions of this file, whether 
  9.   * inserted by the user or by software development tools
  10.   * are owned by their respective copyright owners.
  11.   *
  12.   * COPYRIGHT(c) 2017 STMicroelectronics
  13.   *
  14.   * Redistribution and use in source and binary forms, with or without modification,
  15.   * are permitted provided that the following conditions are met:
  16.   *   1. Redistributions of source code must retain the above copyright notice,
  17.   *      this list of conditions and the following disclaimer.
  18.   *   2. Redistributions in binary form must reproduce the above copyright notice,
  19.   *      this list of conditions and the following disclaimer in the documentation
  20.   *      and/or other materials provided with the distribution.
  21.   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  22.   *      may be used to endorse or promote products derived from this software
  23.   *      without specific prior written permission.
  24.   *
  25.   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  26.   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27.   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  28.   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  29.   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30.   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  31.   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  32.   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  33.   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  34.   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35.   *
  36.   ****************************************************
  37.   */
  38. /* Includes ------------------------------------------------------------------*/
  39. #include "main.h"
  40. #include "stm32f1xx_hal.h"
  41. #include "gpio.h"

  42. /* USER CODE BEGIN Includes */
  43. #include "rtthread.h"
  44. /* USER CODE END Includes */

  45. /* Private variables ---------------------------------------------------------*/

  46. /* USER CODE BEGIN PV */
  47. /* Private variables ---------------------------------------------------------*/

  48. /* USER CODE END PV */

  49. /* Private function prototypes -----------------------------------------------*/
  50. void SystemClock_Config(void);

  51. /* USER CODE BEGIN PFP */
  52. /* Private function prototypes -----------------------------------------------*/

  53. /* USER CODE END PFP */

  54. /* USER CODE BEGIN 0 */
  55. //线程LED1
  56. static void led1_thread_entry(void* parameter)
  57. {
  58.        while(1)
  59.        {
  60.              LED1_Toggle();
  61.              rt_thread_delay(500);   //延时
  62.        }
  63. }
  64. //线程LED2
  65. static void led2_thread_entry(void* parameter)
  66. {
  67.        while(1)
  68.        {
  69.              LED2_Toggle();
  70.              rt_thread_delay(100);   //延时
  71.        }
  72. }

  73. /* USER CODE END 0 */

  74. int main(void)
  75. {

  76.   /* USER CODE BEGIN 1 */

  77.   /* USER CODE END 1 */

  78.   /* MCU Configuration----------------------------------------------------------*/

  79.   /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  80.   HAL_Init();

  81.   /* USER CODE BEGIN Init */

  82.   /* USER CODE END Init */

  83.   /* Configure the system clock */
  84.   SystemClock_Config();

  85.   /* USER CODE BEGIN SysInit */

  86.   /* USER CODE END SysInit */

  87.   /* Initialize all configured peripherals */
  88.   MX_GPIO_Init();

  89.   /* USER CODE BEGIN 2 */
  90.         
  91.         rt_thread_t tid1=RT_NULL;//线程句柄
  92.         rt_thread_t tid2=RT_NULL;//线程句柄
  93.         
  94.         //创建动态线程
  95.         tid1=rt_thread_create("led1",//线程名字
  96.                              led1_thread_entry,//线程入口函数
  97.                              RT_NULL,//线程参数
  98.                              256,//线程栈大小
  99.                              3,//线程优先级
  100.                              20);//线程时间片
  101.         //启动线程        
  102.         rt_thread_startup(tid1); 

  103.         //创建动态线程
  104.         tid2=rt_thread_create("led2",//线程名字
  105.                              led2_thread_entry,//线程入口函数
  106.                              RT_NULL,//线程参数
  107.                              256,//线程栈大小
  108.                              4,//线程优先级
  109.                              20);//线程时间片
  110.         //启动线程                                                                                                         
  111.         rt_thread_startup(tid2); 


  112.   /* USER CODE END 2 */

  113.   /* Infinite loop */
  114.   /* USER CODE BEGIN WHILE */
  115. //  while (1)
  116. //  {
  117. //  /* USER CODE END WHILE */
  118. //  /* USER CODE BEGIN 3 */
  119. //                
  120. //  }
  121.   /* USER CODE END 3 */

  122. }



测试代码使用RT-Thread的动态线程创建函数rt_thread_create()创建了2个线程,在线程里面间隔不同的时间翻转LED。

原文下载源码http://club.gizwits.com/thread-7922-1-1.html

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